diff --git "a/annotation_CSV/PMC4802042.csv" "b/annotation_CSV/PMC4802042.csv" new file mode 100644--- /dev/null +++ "b/annotation_CSV/PMC4802042.csv" @@ -0,0 +1,1446 @@ +anno_start anno_end anno_text entity_type sentence section +21 55 JNK/p38-specific MAPK phosphatases protein_type A conserved motif in JNK/p38-specific MAPK phosphatases as a determinant for JNK1 recognition and inactivation TITLE +77 81 JNK1 protein A conserved motif in JNK/p38-specific MAPK phosphatases as a determinant for JNK1 recognition and inactivation TITLE +0 33 Mitogen-activated protein kinases protein_type Mitogen-activated protein kinases (MAPKs), important in a large array of signalling pathways, are tightly controlled by a cascade of protein kinases and by MAPK phosphatases (MKPs). ABSTRACT +35 40 MAPKs protein_type Mitogen-activated protein kinases (MAPKs), important in a large array of signalling pathways, are tightly controlled by a cascade of protein kinases and by MAPK phosphatases (MKPs). ABSTRACT +133 148 protein kinases protein_type Mitogen-activated protein kinases (MAPKs), important in a large array of signalling pathways, are tightly controlled by a cascade of protein kinases and by MAPK phosphatases (MKPs). ABSTRACT +156 173 MAPK phosphatases protein_type Mitogen-activated protein kinases (MAPKs), important in a large array of signalling pathways, are tightly controlled by a cascade of protein kinases and by MAPK phosphatases (MKPs). ABSTRACT +175 179 MKPs protein_type Mitogen-activated protein kinases (MAPKs), important in a large array of signalling pathways, are tightly controlled by a cascade of protein kinases and by MAPK phosphatases (MKPs). ABSTRACT +0 4 MAPK protein_type MAPK signalling efficiency and specificity is modulated by protein–protein interactions between individual MAPKs and the docking motifs in cognate binding partners. ABSTRACT +107 112 MAPKs protein_type MAPK signalling efficiency and specificity is modulated by protein–protein interactions between individual MAPKs and the docking motifs in cognate binding partners. ABSTRACT +121 135 docking motifs structure_element MAPK signalling efficiency and specificity is modulated by protein–protein interactions between individual MAPKs and the docking motifs in cognate binding partners. ABSTRACT +56 63 D-motif structure_element Two types of docking interactions have been identified: D-motif-mediated interaction and FXF-docking interaction. ABSTRACT +89 112 FXF-docking interaction site Two types of docking interactions have been identified: D-motif-mediated interaction and FXF-docking interaction. ABSTRACT +19 36 crystal structure evidence Here we report the crystal structure of JNK1 bound to the catalytic domain of MKP7 at 2.4-Å resolution, providing high-resolution structural insight into the FXF-docking interaction. ABSTRACT +40 44 JNK1 protein Here we report the crystal structure of JNK1 bound to the catalytic domain of MKP7 at 2.4-Å resolution, providing high-resolution structural insight into the FXF-docking interaction. ABSTRACT +45 53 bound to protein_state Here we report the crystal structure of JNK1 bound to the catalytic domain of MKP7 at 2.4-Å resolution, providing high-resolution structural insight into the FXF-docking interaction. ABSTRACT +58 74 catalytic domain structure_element Here we report the crystal structure of JNK1 bound to the catalytic domain of MKP7 at 2.4-Å resolution, providing high-resolution structural insight into the FXF-docking interaction. ABSTRACT +78 82 MKP7 protein Here we report the crystal structure of JNK1 bound to the catalytic domain of MKP7 at 2.4-Å resolution, providing high-resolution structural insight into the FXF-docking interaction. ABSTRACT +158 181 FXF-docking interaction site Here we report the crystal structure of JNK1 bound to the catalytic domain of MKP7 at 2.4-Å resolution, providing high-resolution structural insight into the FXF-docking interaction. ABSTRACT +4 22 285FNFL288 segment structure_element The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +26 30 MKP7 protein The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +51 67 hydrophobic site site The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +71 75 JNK1 protein The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix ��G. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +93 97 MAPK protein_type The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +112 117 helix structure_element The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +118 120 αG structure_element The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +122 141 Biochemical studies experimental_method The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +167 183 highly conserved protein_state The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +184 200 structural motif structure_element The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +234 244 MKP family protein_type The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +305 308 MKP protein_type The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +309 313 MAPK protein_type The 285FNFL288 segment in MKP7 directly binds to a hydrophobic site on JNK1 that is near the MAPK insertion and helix αG. Biochemical studies further reveal that this highly conserved structural motif is present in all members of the MKP family, and the interaction mode is universal and critical for the MKP-MAPK recognition and biological function. ABSTRACT +15 26 MAPK family protein_type The important MAPK family of signalling proteins is controlled by MAPK phosphatases (MKPs). ABSTRACT +67 84 MAPK phosphatases protein_type The important MAPK family of signalling proteins is controlled by MAPK phosphatases (MKPs). ABSTRACT +86 90 MKPs protein_type The important MAPK family of signalling proteins is controlled by MAPK phosphatases (MKPs). ABSTRACT +29 38 structure evidence Here, the authors report the structure of MKP7 bound to JNK1 and characterise the conserved MKP-MAPK interaction. ABSTRACT +42 46 MKP7 protein Here, the authors report the structure of MKP7 bound to JNK1 and characterise the conserved MKP-MAPK interaction. ABSTRACT +47 55 bound to protein_state Here, the authors report the structure of MKP7 bound to JNK1 and characterise the conserved MKP-MAPK interaction. ABSTRACT +56 60 JNK1 protein Here, the authors report the structure of MKP7 bound to JNK1 and characterise the conserved MKP-MAPK interaction. ABSTRACT +82 91 conserved protein_state Here, the authors report the structure of MKP7 bound to JNK1 and characterise the conserved MKP-MAPK interaction. ABSTRACT +92 95 MKP protein_type Here, the authors report the structure of MKP7 bound to JNK1 and characterise the conserved MKP-MAPK interaction. ABSTRACT +96 100 MAPK protein_type Here, the authors report the structure of MKP7 bound to JNK1 and characterise the conserved MKP-MAPK interaction. ABSTRACT +4 37 mitogen-activated protein kinases protein_type The mitogen-activated protein kinases (MAPKs) are central components of the signal-transduction pathways, which mediate the cellular response to a variety of extracellular stimuli, ranging from growth factors to environmental stresses. INTRO +39 44 MAPKs protein_type The mitogen-activated protein kinases (MAPKs) are central components of the signal-transduction pathways, which mediate the cellular response to a variety of extracellular stimuli, ranging from growth factors to environmental stresses. INTRO +4 8 MAPK protein_type The MAPK signalling pathways are evolutionally highly conserved. INTRO +22 26 MAPK protein_type The basic assembly of MAPK pathways is a three-tier kinase module that establishes a sequential activation cascade: a MAPK kinase kinase activates a MAPK kinase, which in turn activates a MAPK. INTRO +52 58 kinase protein_type The basic assembly of MAPK pathways is a three-tier kinase module that establishes a sequential activation cascade: a MAPK kinase kinase activates a MAPK kinase, which in turn activates a MAPK. INTRO +118 136 MAPK kinase kinase protein_type The basic assembly of MAPK pathways is a three-tier kinase module that establishes a sequential activation cascade: a MAPK kinase kinase activates a MAPK kinase, which in turn activates a MAPK. INTRO +149 160 MAPK kinase protein_type The basic assembly of MAPK pathways is a three-tier kinase module that establishes a sequential activation cascade: a MAPK kinase kinase activates a MAPK kinase, which in turn activates a MAPK. INTRO +188 192 MAPK protein_type The basic assembly of MAPK pathways is a three-tier kinase module that establishes a sequential activation cascade: a MAPK kinase kinase activates a MAPK kinase, which in turn activates a MAPK. INTRO +29 33 MAPK protein_type The three best-characterized MAPK signalling pathways are mediated by the kinases extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK) and p38. INTRO +74 81 kinases protein_type The three best-characterized MAPK signalling pathways are mediated by the kinases extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK) and p38. INTRO +82 119 extracellular signal-regulated kinase protein_type The three best-characterized MAPK signalling pathways are mediated by the kinases extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK) and p38. INTRO +121 124 ERK protein_type The three best-characterized MAPK signalling pathways are mediated by the kinases extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK) and p38. INTRO +127 150 c-Jun N-terminal kinase protein_type The three best-characterized MAPK signalling pathways are mediated by the kinases extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK) and p38. INTRO +152 155 JNK protein_type The three best-characterized MAPK signalling pathways are mediated by the kinases extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK) and p38. INTRO +161 164 p38 protein_type The three best-characterized MAPK signalling pathways are mediated by the kinases extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK) and p38. INTRO +4 7 ERK protein_type The ERK pathway is activated by various mitogens and phorbol esters, whereas the JNK and p38 pathways are stimulated mainly by environmental stress and inflammatory cytokines. INTRO +81 84 JNK protein_type The ERK pathway is activated by various mitogens and phorbol esters, whereas the JNK and p38 pathways are stimulated mainly by environmental stress and inflammatory cytokines. INTRO +89 92 p38 protein_type The ERK pathway is activated by various mitogens and phorbol esters, whereas the JNK and p38 pathways are stimulated mainly by environmental stress and inflammatory cytokines. INTRO +165 174 cytokines protein_type The ERK pathway is activated by various mitogens and phorbol esters, whereas the JNK and p38 pathways are stimulated mainly by environmental stress and inflammatory cytokines. INTRO +4 9 MAPKs protein_type The MAPKs are activated by MAPK kinases that phosphorylate the MAPKs at conserved threonine and tyrosine residues within their activation loop. INTRO +27 39 MAPK kinases protein_type The MAPKs are activated by MAPK kinases that phosphorylate the MAPKs at conserved threonine and tyrosine residues within their activation loop. INTRO +63 68 MAPKs protein_type The MAPKs are activated by MAPK kinases that phosphorylate the MAPKs at conserved threonine and tyrosine residues within their activation loop. INTRO +72 81 conserved protein_state The MAPKs are activated by MAPK kinases that phosphorylate the MAPKs at conserved threonine and tyrosine residues within their activation loop. INTRO +82 91 threonine residue_name The MAPKs are activated by MAPK kinases that phosphorylate the MAPKs at conserved threonine and tyrosine residues within their activation loop. INTRO +96 104 tyrosine residue_name The MAPKs are activated by MAPK kinases that phosphorylate the MAPKs at conserved threonine and tyrosine residues within their activation loop. INTRO +127 142 activation loop structure_element The MAPKs are activated by MAPK kinases that phosphorylate the MAPKs at conserved threonine and tyrosine residues within their activation loop. INTRO +23 27 MAPK protein_type After activation, each MAPK phosphorylates a distinct set of protein substrates, which act as the critical effectors that enable cells to mount the appropriate responses to varied stimuli. INTRO +0 5 MAPKs protein_type MAPKs lie at the bottom of conserved three-component phosphorylation cascades and utilize docking interactions to link module components and bind substrates. INTRO +13 27 docking motifs structure_element Two types of docking motifs have been identified in MAPK substrates and cognate proteins: kinase-interacting motif (D-motif) and FXF-motif (also called DEF motif, docking site for ERK FXF). INTRO +52 56 MAPK protein_type Two types of docking motifs have been identified in MAPK substrates and cognate proteins: kinase-interacting motif (D-motif) and FXF-motif (also called DEF motif, docking site for ERK FXF). INTRO +90 114 kinase-interacting motif structure_element Two types of docking motifs have been identified in MAPK substrates and cognate proteins: kinase-interacting motif (D-motif) and FXF-motif (also called DEF motif, docking site for ERK FXF). INTRO +116 123 D-motif structure_element Two types of docking motifs have been identified in MAPK substrates and cognate proteins: kinase-interacting motif (D-motif) and FXF-motif (also called DEF motif, docking site for ERK FXF). INTRO +129 138 FXF-motif structure_element Two types of docking motifs have been identified in MAPK substrates and cognate proteins: kinase-interacting motif (D-motif) and FXF-motif (also called DEF motif, docking site for ERK FXF). INTRO +152 161 DEF motif structure_element Two types of docking motifs have been identified in MAPK substrates and cognate proteins: kinase-interacting motif (D-motif) and FXF-motif (also called DEF motif, docking site for ERK FXF). INTRO +163 175 docking site site Two types of docking motifs have been identified in MAPK substrates and cognate proteins: kinase-interacting motif (D-motif) and FXF-motif (also called DEF motif, docking site for ERK FXF). INTRO +180 183 ERK protein_type Two types of docking motifs have been identified in MAPK substrates and cognate proteins: kinase-interacting motif (D-motif) and FXF-motif (also called DEF motif, docking site for ERK FXF). INTRO +184 187 FXF structure_element Two types of docking motifs have been identified in MAPK substrates and cognate proteins: kinase-interacting motif (D-motif) and FXF-motif (also called DEF motif, docking site for ERK FXF). INTRO +56 67 MAP kinases protein_type The best-studied docking interactions are those between MAP kinases and ‘D-motifs', which consists of two or more basic residues followed by a short linker and a cluster of hydrophobic residues. INTRO +73 81 D-motifs structure_element The best-studied docking interactions are those between MAP kinases and ‘D-motifs', which consists of two or more basic residues followed by a short linker and a cluster of hydrophobic residues. INTRO +143 155 short linker structure_element The best-studied docking interactions are those between MAP kinases and ‘D-motifs', which consists of two or more basic residues followed by a short linker and a cluster of hydrophobic residues. INTRO +4 24 D-motif-docking site site The D-motif-docking site (D-site) in MAPKs is situated in a noncatalytic region opposite of the kinase catalytic pocket and is comprised of a highly acidic patch and a hydrophobic groove. INTRO +26 32 D-site site The D-motif-docking site (D-site) in MAPKs is situated in a noncatalytic region opposite of the kinase catalytic pocket and is comprised of a highly acidic patch and a hydrophobic groove. INTRO +37 42 MAPKs protein_type The D-motif-docking site (D-site) in MAPKs is situated in a noncatalytic region opposite of the kinase catalytic pocket and is comprised of a highly acidic patch and a hydrophobic groove. INTRO +60 79 noncatalytic region site The D-motif-docking site (D-site) in MAPKs is situated in a noncatalytic region opposite of the kinase catalytic pocket and is comprised of a highly acidic patch and a hydrophobic groove. INTRO +96 102 kinase protein_type The D-motif-docking site (D-site) in MAPKs is situated in a noncatalytic region opposite of the kinase catalytic pocket and is comprised of a highly acidic patch and a hydrophobic groove. INTRO +103 119 catalytic pocket site The D-motif-docking site (D-site) in MAPKs is situated in a noncatalytic region opposite of the kinase catalytic pocket and is comprised of a highly acidic patch and a hydrophobic groove. INTRO +142 161 highly acidic patch site The D-motif-docking site (D-site) in MAPKs is situated in a noncatalytic region opposite of the kinase catalytic pocket and is comprised of a highly acidic patch and a hydrophobic groove. INTRO +168 186 hydrophobic groove site The D-motif-docking site (D-site) in MAPKs is situated in a noncatalytic region opposite of the kinase catalytic pocket and is comprised of a highly acidic patch and a hydrophobic groove. INTRO +0 8 D-motifs structure_element D-motifs are found in many MAPK-interacting proteins, including substrates, activating kinases and inactivating phosphatases, as well as scaffolding proteins. INTRO +27 52 MAPK-interacting proteins protein_type D-motifs are found in many MAPK-interacting proteins, including substrates, activating kinases and inactivating phosphatases, as well as scaffolding proteins. INTRO +87 94 kinases protein_type D-motifs are found in many MAPK-interacting proteins, including substrates, activating kinases and inactivating phosphatases, as well as scaffolding proteins. INTRO +112 124 phosphatases protein_type D-motifs are found in many MAPK-interacting proteins, including substrates, activating kinases and inactivating phosphatases, as well as scaffolding proteins. INTRO +2 22 second docking motif structure_element A second docking motif for MAPKs consists of two Phe residues separated by one residue (FXF-motif). INTRO +27 32 MAPKs protein_type A second docking motif for MAPKs consists of two Phe residues separated by one residue (FXF-motif). INTRO +49 52 Phe residue_name A second docking motif for MAPKs consists of two Phe residues separated by one residue (FXF-motif). INTRO +88 97 FXF-motif structure_element A second docking motif for MAPKs consists of two Phe residues separated by one residue (FXF-motif). INTRO +40 44 MAPK protein_type This motif has been observed in several MAPK substrates. INTRO +4 26 FXF-motif-binding site site The FXF-motif-binding site of ERK2 has been mapped to a hydrophobic pocket formed between the P+1 site, αG helix and the MAPK insert. INTRO +30 34 ERK2 protein The FXF-motif-binding site of ERK2 has been mapped to a hydrophobic pocket formed between the P+1 site, αG helix and the MAPK insert. INTRO +56 74 hydrophobic pocket site The FXF-motif-binding site of ERK2 has been mapped to a hydrophobic pocket formed between the P+1 site, αG helix and the MAPK insert. INTRO +94 102 P+1 site site The FXF-motif-binding site of ERK2 has been mapped to a hydrophobic pocket formed between the P+1 site, αG helix and the MAPK insert. INTRO +104 112 αG helix structure_element The FXF-motif-binding site of ERK2 has been mapped to a hydrophobic pocket formed between the P+1 site, αG helix and the MAPK insert. INTRO +121 132 MAPK insert structure_element The FXF-motif-binding site of ERK2 has been mapped to a hydrophobic pocket formed between the P+1 site, αG helix and the MAPK insert. INTRO +45 48 FXF structure_element However, the generality and mechanism of the FXF-mediated interaction is unclear. INTRO +29 33 MAPK protein_type The physiological outcome of MAPK signalling depends on both the magnitude and the duration of kinase activation. INTRO +18 22 MAPK protein_type Downregulation of MAPK activity can be achieved through direct dephosphorylation of the phospho-threonine and/or tyrosine residues by various serine/threonine phosphatases, tyrosine phosphatases and dual-specificity phosphatases (DUSPs) termed MKPs. INTRO +88 121 phospho-threonine and/or tyrosine residue_name Downregulation of MAPK activity can be achieved through direct dephosphorylation of the phospho-threonine and/or tyrosine residues by various serine/threonine phosphatases, tyrosine phosphatases and dual-specificity phosphatases (DUSPs) termed MKPs. INTRO +142 171 serine/threonine phosphatases protein_type Downregulation of MAPK activity can be achieved through direct dephosphorylation of the phospho-threonine and/or tyrosine residues by various serine/threonine phosphatases, tyrosine phosphatases and dual-specificity phosphatases (DUSPs) termed MKPs. INTRO +173 194 tyrosine phosphatases protein_type Downregulation of MAPK activity can be achieved through direct dephosphorylation of the phospho-threonine and/or tyrosine residues by various serine/threonine phosphatases, tyrosine phosphatases and dual-specificity phosphatases (DUSPs) termed MKPs. INTRO +199 228 dual-specificity phosphatases protein_type Downregulation of MAPK activity can be achieved through direct dephosphorylation of the phospho-threonine and/or tyrosine residues by various serine/threonine phosphatases, tyrosine phosphatases and dual-specificity phosphatases (DUSPs) termed MKPs. INTRO +230 235 DUSPs protein_type Downregulation of MAPK activity can be achieved through direct dephosphorylation of the phospho-threonine and/or tyrosine residues by various serine/threonine phosphatases, tyrosine phosphatases and dual-specificity phosphatases (DUSPs) termed MKPs. INTRO +244 248 MKPs protein_type Downregulation of MAPK activity can be achieved through direct dephosphorylation of the phospho-threonine and/or tyrosine residues by various serine/threonine phosphatases, tyrosine phosphatases and dual-specificity phosphatases (DUSPs) termed MKPs. INTRO +0 4 MKPs protein_type MKPs constitute a group of DUSPs that are characterized by their ability to dephosphorylate both phosphotyrosine and phosphoserine/phospho-threonine residues within a substrate. INTRO +27 32 DUSPs protein_type MKPs constitute a group of DUSPs that are characterized by their ability to dephosphorylate both phosphotyrosine and phosphoserine/phospho-threonine residues within a substrate. INTRO +97 112 phosphotyrosine residue_name MKPs constitute a group of DUSPs that are characterized by their ability to dephosphorylate both phosphotyrosine and phosphoserine/phospho-threonine residues within a substrate. INTRO +117 130 phosphoserine residue_name MKPs constitute a group of DUSPs that are characterized by their ability to dephosphorylate both phosphotyrosine and phosphoserine/phospho-threonine residues within a substrate. INTRO +131 148 phospho-threonine residue_name MKPs constitute a group of DUSPs that are characterized by their ability to dephosphorylate both phosphotyrosine and phosphoserine/phospho-threonine residues within a substrate. INTRO +27 31 MKPs protein_type Dysregulated expression of MKPs has been associated with pathogenesis of various diseases, and understanding their precise recognition mechanism presents an important challenge and opportunity for drug development. INTRO +21 38 crystal structure evidence Here, we present the crystal structure of JNK1 in complex with the catalytic domain of MKP7. INTRO +42 46 JNK1 protein Here, we present the crystal structure of JNK1 in complex with the catalytic domain of MKP7. INTRO +47 62 in complex with protein_state Here, we present the crystal structure of JNK1 in complex with the catalytic domain of MKP7. INTRO +67 83 catalytic domain structure_element Here, we present the crystal structure of JNK1 in complex with the catalytic domain of MKP7. INTRO +87 91 MKP7 protein Here, we present the crystal structure of JNK1 in complex with the catalytic domain of MKP7. INTRO +5 14 structure evidence This structure reveals the molecular mechanism underlying the docking interaction between MKP7 and JNK1. INTRO +90 94 MKP7 protein This structure reveals the molecular mechanism underlying the docking interaction between MKP7 and JNK1. INTRO +99 103 JNK1 protein This structure reveals the molecular mechanism underlying the docking interaction between MKP7 and JNK1. INTRO +7 16 JNK1–MKP7 complex_assembly In the JNK1–MKP7 complex, a hydrophobic motif (285FNFL288) that initiates the helix α5 in the MKP7 catalytic domain directly binds to the FXF-motif-binding site on JNK1, providing the structural insight into the classic FXF-type docking interaction. INTRO +28 45 hydrophobic motif structure_element In the JNK1–MKP7 complex, a hydrophobic motif (285FNFL288) that initiates the helix α5 in the MKP7 catalytic domain directly binds to the FXF-motif-binding site on JNK1, providing the structural insight into the classic FXF-type docking interaction. INTRO +47 57 285FNFL288 structure_element In the JNK1–MKP7 complex, a hydrophobic motif (285FNFL288) that initiates the helix α5 in the MKP7 catalytic domain directly binds to the FXF-motif-binding site on JNK1, providing the structural insight into the classic FXF-type docking interaction. INTRO +78 83 helix structure_element In the JNK1–MKP7 complex, a hydrophobic motif (285FNFL288) that initiates the helix α5 in the MKP7 catalytic domain directly binds to the FXF-motif-binding site on JNK1, providing the structural insight into the classic FXF-type docking interaction. INTRO +84 86 α5 structure_element In the JNK1–MKP7 complex, a hydrophobic motif (285FNFL288) that initiates the helix α5 in the MKP7 catalytic domain directly binds to the FXF-motif-binding site on JNK1, providing the structural insight into the classic FXF-type docking interaction. INTRO +94 98 MKP7 protein In the JNK1–MKP7 complex, a hydrophobic motif (285FNFL288) that initiates the helix α5 in the MKP7 catalytic domain directly binds to the FXF-motif-binding site on JNK1, providing the structural insight into the classic FXF-type docking interaction. INTRO +99 115 catalytic domain structure_element In the JNK1–MKP7 complex, a hydrophobic motif (285FNFL288) that initiates the helix α5 in the MKP7 catalytic domain directly binds to the FXF-motif-binding site on JNK1, providing the structural insight into the classic FXF-type docking interaction. INTRO +138 160 FXF-motif-binding site site In the JNK1–MKP7 complex, a hydrophobic motif (285FNFL288) that initiates the helix α5 in the MKP7 catalytic domain directly binds to the FXF-motif-binding site on JNK1, providing the structural insight into the classic FXF-type docking interaction. INTRO +164 168 JNK1 protein In the JNK1–MKP7 complex, a hydrophobic motif (285FNFL288) that initiates the helix α5 in the MKP7 catalytic domain directly binds to the FXF-motif-binding site on JNK1, providing the structural insight into the classic FXF-type docking interaction. INTRO +220 248 FXF-type docking interaction site In the JNK1–MKP7 complex, a hydrophobic motif (285FNFL288) that initiates the helix α5 in the MKP7 catalytic domain directly binds to the FXF-motif-binding site on JNK1, providing the structural insight into the classic FXF-type docking interaction. INTRO +0 33 Biochemical and modelling studies experimental_method Biochemical and modelling studies further demonstrate that the molecular interactions mediate this key element for substrate recognition are highly conserved among all MKP-family members. INTRO +168 186 MKP-family members protein_type Biochemical and modelling studies further demonstrate that the molecular interactions mediate this key element for substrate recognition are highly conserved among all MKP-family members. INTRO +111 124 MAPK isoforms protein_type Thus, our study reveals a hitherto unrecognized interaction mode for encoding complex target specificity among MAPK isoforms. INTRO +15 19 JNK1 protein Interaction of JNK1 with the MKP7 catalytic domain RESULTS +29 33 MKP7 protein Interaction of JNK1 with the MKP7 catalytic domain RESULTS +34 50 catalytic domain structure_element Interaction of JNK1 with the MKP7 catalytic domain RESULTS +0 5 DUSPs protein_type DUSPs belong to the protein-tyrosine phosphatases (PTPase) superfamily, which is defined by the PTPase-signature motif CXXGXXR. RESULTS +20 49 protein-tyrosine phosphatases protein_type DUSPs belong to the protein-tyrosine phosphatases (PTPase) superfamily, which is defined by the PTPase-signature motif CXXGXXR. RESULTS +51 57 PTPase protein_type DUSPs belong to the protein-tyrosine phosphatases (PTPase) superfamily, which is defined by the PTPase-signature motif CXXGXXR. RESULTS +96 102 PTPase protein_type DUSPs belong to the protein-tyrosine phosphatases (PTPase) superfamily, which is defined by the PTPase-signature motif CXXGXXR. RESULTS +119 126 CXXGXXR structure_element DUSPs belong to the protein-tyrosine phosphatases (PTPase) superfamily, which is defined by the PTPase-signature motif CXXGXXR. RESULTS +0 4 MKPs protein_type MKPs represent a distinct subfamily within a larger group of DUSPs. RESULTS +61 66 DUSPs protein_type MKPs represent a distinct subfamily within a larger group of DUSPs. RESULTS +3 12 mammalian taxonomy_domain In mammalian cells, the MKP subfamily includes 10 distinct catalytically active MKPs. RESULTS +24 37 MKP subfamily protein_type In mammalian cells, the MKP subfamily includes 10 distinct catalytically active MKPs. RESULTS +59 79 catalytically active protein_state In mammalian cells, the MKP subfamily includes 10 distinct catalytically active MKPs. RESULTS +80 84 MKPs protein_type In mammalian cells, the MKP subfamily includes 10 distinct catalytically active MKPs. RESULTS +4 8 MKPs protein_type All MKPs contain a highly conserved C-terminal catalytic domain (CD) and an N-terminal kinase-binding domain (KBD). RESULTS +19 35 highly conserved protein_state All MKPs contain a highly conserved C-terminal catalytic domain (CD) and an N-terminal kinase-binding domain (KBD). RESULTS +47 63 catalytic domain structure_element All MKPs contain a highly conserved C-terminal catalytic domain (CD) and an N-terminal kinase-binding domain (KBD). RESULTS +65 67 CD structure_element All MKPs contain a highly conserved C-terminal catalytic domain (CD) and an N-terminal kinase-binding domain (KBD). RESULTS +87 108 kinase-binding domain structure_element All MKPs contain a highly conserved C-terminal catalytic domain (CD) and an N-terminal kinase-binding domain (KBD). RESULTS +110 113 KBD structure_element All MKPs contain a highly conserved C-terminal catalytic domain (CD) and an N-terminal kinase-binding domain (KBD). RESULTS +4 7 KBD structure_element The KBD is homologous to the rhodanese family and contains an intervening cluster of basic amino acids, which has been suggested to be important for interacting with the target MAPKs. RESULTS +29 45 rhodanese family protein_type The KBD is homologous to the rhodanese family and contains an intervening cluster of basic amino acids, which has been suggested to be important for interacting with the target MAPKs. RESULTS +177 182 MAPKs protein_type The KBD is homologous to the rhodanese family and contains an intervening cluster of basic amino acids, which has been suggested to be important for interacting with the target MAPKs. RESULTS +105 115 MKP family protein_type On the basis of sequence similarity, substrate specificity and predominant subcellular localization, the MKP family can be further divided into three groups (Fig. 1). RESULTS +0 34 Biochemical and structural studies experimental_method Biochemical and structural studies have revealed that the KBD of MKPs is critical for MKP3 docking to ERK2, and MKP5 binding to p38α, although their binding mechanisms are completely different. RESULTS +58 61 KBD structure_element Biochemical and structural studies have revealed that the KBD of MKPs is critical for MKP3 docking to ERK2, and MKP5 binding to p38α, although their binding mechanisms are completely different. RESULTS +65 69 MKPs protein_type Biochemical and structural studies have revealed that the KBD of MKPs is critical for MKP3 docking to ERK2, and MKP5 binding to p38α, although their binding mechanisms are completely different. RESULTS +86 90 MKP3 protein Biochemical and structural studies have revealed that the KBD of MKPs is critical for MKP3 docking to ERK2, and MKP5 binding to p38α, although their binding mechanisms are completely different. RESULTS +102 106 ERK2 protein Biochemical and structural studies have revealed that the KBD of MKPs is critical for MKP3 docking to ERK2, and MKP5 binding to p38α, although their binding mechanisms are completely different. RESULTS +112 116 MKP5 protein Biochemical and structural studies have revealed that the KBD of MKPs is critical for MKP3 docking to ERK2, and MKP5 binding to p38α, although their binding mechanisms are completely different. RESULTS +128 132 p38α protein Biochemical and structural studies have revealed that the KBD of MKPs is critical for MKP3 docking to ERK2, and MKP5 binding to p38α, although their binding mechanisms are completely different. RESULTS +32 37 MAPKs protein_type However, it is unknown if other MAPKs can interact with the KBD of their cognate phosphatases in the same manner as observed for recognition of ERK2 and p38α by their MKPs, or whether they recognize distinct docking motifs of MKPs. RESULTS +60 63 KBD structure_element However, it is unknown if other MAPKs can interact with the KBD of their cognate phosphatases in the same manner as observed for recognition of ERK2 and p38α by their MKPs, or whether they recognize distinct docking motifs of MKPs. RESULTS +81 93 phosphatases protein_type However, it is unknown if other MAPKs can interact with the KBD of their cognate phosphatases in the same manner as observed for recognition of ERK2 and p38α by their MKPs, or whether they recognize distinct docking motifs of MKPs. RESULTS +144 148 ERK2 protein However, it is unknown if other MAPKs can interact with the KBD of their cognate phosphatases in the same manner as observed for recognition of ERK2 and p38α by their MKPs, or whether they recognize distinct docking motifs of MKPs. RESULTS +153 157 p38α protein However, it is unknown if other MAPKs can interact with the KBD of their cognate phosphatases in the same manner as observed for recognition of ERK2 and p38α by their MKPs, or whether they recognize distinct docking motifs of MKPs. RESULTS +167 171 MKPs protein_type However, it is unknown if other MAPKs can interact with the KBD of their cognate phosphatases in the same manner as observed for recognition of ERK2 and p38α by their MKPs, or whether they recognize distinct docking motifs of MKPs. RESULTS +208 222 docking motifs structure_element However, it is unknown if other MAPKs can interact with the KBD of their cognate phosphatases in the same manner as observed for recognition of ERK2 and p38α by their MKPs, or whether they recognize distinct docking motifs of MKPs. RESULTS +226 230 MKPs protein_type However, it is unknown if other MAPKs can interact with the KBD of their cognate phosphatases in the same manner as observed for recognition of ERK2 and p38α by their MKPs, or whether they recognize distinct docking motifs of MKPs. RESULTS +0 4 MKP7 protein MKP7, the biggest molecule in the MKP family, selectively inactivates JNK and p38 following stress activation. RESULTS +34 44 MKP family protein_type MKP7, the biggest molecule in the MKP family, selectively inactivates JNK and p38 following stress activation. RESULTS +70 73 JNK protein_type MKP7, the biggest molecule in the MKP family, selectively inactivates JNK and p38 following stress activation. RESULTS +78 81 p38 protein_type MKP7, the biggest molecule in the MKP family, selectively inactivates JNK and p38 following stress activation. RESULTS +19 21 CD structure_element In addition to the CD and KBD, MKP7 has a long C-terminal region that contains both nuclear localization and export sequences by which MKP7 shuttles between the nucleus and the cytoplasm (Fig. 2a). RESULTS +26 29 KBD structure_element In addition to the CD and KBD, MKP7 has a long C-terminal region that contains both nuclear localization and export sequences by which MKP7 shuttles between the nucleus and the cytoplasm (Fig. 2a). RESULTS +31 35 MKP7 protein In addition to the CD and KBD, MKP7 has a long C-terminal region that contains both nuclear localization and export sequences by which MKP7 shuttles between the nucleus and the cytoplasm (Fig. 2a). RESULTS +47 64 C-terminal region structure_element In addition to the CD and KBD, MKP7 has a long C-terminal region that contains both nuclear localization and export sequences by which MKP7 shuttles between the nucleus and the cytoplasm (Fig. 2a). RESULTS +135 139 MKP7 protein In addition to the CD and KBD, MKP7 has a long C-terminal region that contains both nuclear localization and export sequences by which MKP7 shuttles between the nucleus and the cytoplasm (Fig. 2a). RESULTS +49 66 N-terminal domain structure_element To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +74 78 MKP7 protein To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +89 93 JNK1 protein To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +94 111 dephosphorylation ptm To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +135 142 kinetic evidence To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +172 182 truncation experimental_method To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +186 190 MKP7 protein To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +192 201 MKP7ΔC304 mutant To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +212 217 5–303 residue_range To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +223 227 MKP7 protein To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +228 230 CD structure_element To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +241 248 156–301 residue_range To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +258 272 phosphorylated protein_state To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +273 277 JNK1 protein To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +279 280 p protein_state To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +280 284 JNK1 protein To quantitatively assess the contribution of the N-terminal domain to the MKP7-catalysed JNK1 dephosphorylation, we first measured the kinetic parameters of the C-terminal truncation of MKP7 (MKP7ΔC304, residues 5–303) and MKP7-CD (residues 156–301) towards phosphorylated JNK1 (pJNK1). RESULTS +20 46 variation of initial rates evidence Figure 2b shows the variation of initial rates of the MKP7ΔC304 and MKP7-CD-catalysed reaction with the concentration of phospho-JNK1. Because the concentrations of MKP7 and pJNK1 were comparable in the reaction, the assumption that the free-substrate concentration is equal to the total substrate concentration is not valid. RESULTS +54 63 MKP7ΔC304 mutant Figure 2b shows the variation of initial rates of the MKP7ΔC304 and MKP7-CD-catalysed reaction with the concentration of phospho-JNK1. Because the concentrations of MKP7 and pJNK1 were comparable in the reaction, the assumption that the free-substrate concentration is equal to the total substrate concentration is not valid. RESULTS +68 72 MKP7 protein Figure 2b shows the variation of initial rates of the MKP7ΔC304 and MKP7-CD-catalysed reaction with the concentration of phospho-JNK1. Because the concentrations of MKP7 and pJNK1 were comparable in the reaction, the assumption that the free-substrate concentration is equal to the total substrate concentration is not valid. RESULTS +73 75 CD structure_element Figure 2b shows the variation of initial rates of the MKP7ΔC304 and MKP7-CD-catalysed reaction with the concentration of phospho-JNK1. Because the concentrations of MKP7 and pJNK1 were comparable in the reaction, the assumption that the free-substrate concentration is equal to the total substrate concentration is not valid. RESULTS +121 128 phospho protein_state Figure 2b shows the variation of initial rates of the MKP7ΔC304 and MKP7-CD-catalysed reaction with the concentration of phospho-JNK1. Because the concentrations of MKP7 and pJNK1 were comparable in the reaction, the assumption that the free-substrate concentration is equal to the total substrate concentration is not valid. RESULTS +129 133 JNK1 protein Figure 2b shows the variation of initial rates of the MKP7ΔC304 and MKP7-CD-catalysed reaction with the concentration of phospho-JNK1. Because the concentrations of MKP7 and pJNK1 were comparable in the reaction, the assumption that the free-substrate concentration is equal to the total substrate concentration is not valid. RESULTS +165 169 MKP7 protein Figure 2b shows the variation of initial rates of the MKP7ΔC304 and MKP7-CD-catalysed reaction with the concentration of phospho-JNK1. Because the concentrations of MKP7 and pJNK1 were comparable in the reaction, the assumption that the free-substrate concentration is equal to the total substrate concentration is not valid. RESULTS +174 175 p protein_state Figure 2b shows the variation of initial rates of the MKP7ΔC304 and MKP7-CD-catalysed reaction with the concentration of phospho-JNK1. Because the concentrations of MKP7 and pJNK1 were comparable in the reaction, the assumption that the free-substrate concentration is equal to the total substrate concentration is not valid. RESULTS +175 179 JNK1 protein Figure 2b shows the variation of initial rates of the MKP7ΔC304 and MKP7-CD-catalysed reaction with the concentration of phospho-JNK1. Because the concentrations of MKP7 and pJNK1 were comparable in the reaction, the assumption that the free-substrate concentration is equal to the total substrate concentration is not valid. RESULTS +10 22 kinetic data evidence Thus, the kinetic data were analysed using the general initial velocity equation, taking substrate depletion into account: RESULTS +55 80 initial velocity equation evidence Thus, the kinetic data were analysed using the general initial velocity equation, taking substrate depletion into account: RESULTS +4 8 kcat evidence The kcat and Km of the MKP7-CD (0.028 s−1 and 0.26 μM) so determined were nearly identical to those of MKP7ΔC304 (0.029 s−1 and 0.27 μM), indicating that the MKP7-KBD has no effect on enzyme catalysis. RESULTS +13 15 Km evidence The kcat and Km of the MKP7-CD (0.028 s−1 and 0.26 μM) so determined were nearly identical to those of MKP7ΔC304 (0.029 s−1 and 0.27 μM), indicating that the MKP7-KBD has no effect on enzyme catalysis. RESULTS +23 27 MKP7 protein The kcat and Km of the MKP7-CD (0.028 s−1 and 0.26 μM) so determined were nearly identical to those of MKP7ΔC304 (0.029 s−1 and 0.27 μM), indicating that the MKP7-KBD has no effect on enzyme catalysis. RESULTS +28 30 CD structure_element The kcat and Km of the MKP7-CD (0.028 s−1 and 0.26 μM) so determined were nearly identical to those of MKP7ΔC304 (0.029 s−1 and 0.27 μM), indicating that the MKP7-KBD has no effect on enzyme catalysis. RESULTS +103 112 MKP7ΔC304 mutant The kcat and Km of the MKP7-CD (0.028 s−1 and 0.26 μM) so determined were nearly identical to those of MKP7ΔC304 (0.029 s−1 and 0.27 μM), indicating that the MKP7-KBD has no effect on enzyme catalysis. RESULTS +158 162 MKP7 protein The kcat and Km of the MKP7-CD (0.028 s−1 and 0.26 μM) so determined were nearly identical to those of MKP7ΔC304 (0.029 s−1 and 0.27 μM), indicating that the MKP7-KBD has no effect on enzyme catalysis. RESULTS +163 166 KBD structure_element The kcat and Km of the MKP7-CD (0.028 s−1 and 0.26 μM) so determined were nearly identical to those of MKP7ΔC304 (0.029 s−1 and 0.27 μM), indicating that the MKP7-KBD has no effect on enzyme catalysis. RESULTS +36 40 JNK1 protein We next examined the interaction of JNK1 with the CD and KBD of MKP7 by gel filtration analysis. RESULTS +50 52 CD structure_element We next examined the interaction of JNK1 with the CD and KBD of MKP7 by gel filtration analysis. RESULTS +57 60 KBD structure_element We next examined the interaction of JNK1 with the CD and KBD of MKP7 by gel filtration analysis. RESULTS +64 68 MKP7 protein We next examined the interaction of JNK1 with the CD and KBD of MKP7 by gel filtration analysis. RESULTS +72 95 gel filtration analysis experimental_method We next examined the interaction of JNK1 with the CD and KBD of MKP7 by gel filtration analysis. RESULTS +28 30 CD structure_element When 3 molar equivalents of CD were mixed with 1 molar equivalent of JNK1, a significant amount of CD co-migrated with JNK1 to earlier fractions, and the excess amount of CD was eluted from the size exclusion column as a monomer, indicating stable complex formation (Fig. 2c). RESULTS +69 73 JNK1 protein When 3 molar equivalents of CD were mixed with 1 molar equivalent of JNK1, a significant amount of CD co-migrated with JNK1 to earlier fractions, and the excess amount of CD was eluted from the size exclusion column as a monomer, indicating stable complex formation (Fig. 2c). RESULTS +99 101 CD structure_element When 3 molar equivalents of CD were mixed with 1 molar equivalent of JNK1, a significant amount of CD co-migrated with JNK1 to earlier fractions, and the excess amount of CD was eluted from the size exclusion column as a monomer, indicating stable complex formation (Fig. 2c). RESULTS +119 123 JNK1 protein When 3 molar equivalents of CD were mixed with 1 molar equivalent of JNK1, a significant amount of CD co-migrated with JNK1 to earlier fractions, and the excess amount of CD was eluted from the size exclusion column as a monomer, indicating stable complex formation (Fig. 2c). RESULTS +171 173 CD structure_element When 3 molar equivalents of CD were mixed with 1 molar equivalent of JNK1, a significant amount of CD co-migrated with JNK1 to earlier fractions, and the excess amount of CD was eluted from the size exclusion column as a monomer, indicating stable complex formation (Fig. 2c). RESULTS +221 228 monomer oligomeric_state When 3 molar equivalents of CD were mixed with 1 molar equivalent of JNK1, a significant amount of CD co-migrated with JNK1 to earlier fractions, and the excess amount of CD was eluted from the size exclusion column as a monomer, indicating stable complex formation (Fig. 2c). RESULTS +16 24 KBD–JNK1 complex_assembly In contrast, no KBD–JNK1 complex was detected when 3 molar equivalents of KBD were mixed with 1 molar equivalent of JNK1. RESULTS +74 77 KBD structure_element In contrast, no KBD–JNK1 complex was detected when 3 molar equivalents of KBD were mixed with 1 molar equivalent of JNK1. RESULTS +116 120 JNK1 protein In contrast, no KBD–JNK1 complex was detected when 3 molar equivalents of KBD were mixed with 1 molar equivalent of JNK1. RESULTS +23 35 JNK1–MKP7-CD complex_assembly To further confirm the JNK1–MKP7-CD interaction, we performed a pull-down assay using the purified proteins. RESULTS +64 79 pull-down assay experimental_method To further confirm the JNK1–MKP7-CD interaction, we performed a pull-down assay using the purified proteins. RESULTS +25 27 CD structure_element As shown in Fig. 2d, the CD of MKP7 can be pulled down by JNK1, while the KBD failed to bind to the counterpart protein. RESULTS +31 35 MKP7 protein As shown in Fig. 2d, the CD of MKP7 can be pulled down by JNK1, while the KBD failed to bind to the counterpart protein. RESULTS +58 62 JNK1 protein As shown in Fig. 2d, the CD of MKP7 can be pulled down by JNK1, while the KBD failed to bind to the counterpart protein. RESULTS +74 77 KBD structure_element As shown in Fig. 2d, the CD of MKP7 can be pulled down by JNK1, while the KBD failed to bind to the counterpart protein. RESULTS +43 45 CD structure_element Taken together, our data indicate that the CD of MKP7, but not the KBD domain, is responsible for JNK substrate-binding and enzymatic specificity. RESULTS +49 53 MKP7 protein Taken together, our data indicate that the CD of MKP7, but not the KBD domain, is responsible for JNK substrate-binding and enzymatic specificity. RESULTS +67 70 KBD structure_element Taken together, our data indicate that the CD of MKP7, but not the KBD domain, is responsible for JNK substrate-binding and enzymatic specificity. RESULTS +98 101 JNK protein_type Taken together, our data indicate that the CD of MKP7, but not the KBD domain, is responsible for JNK substrate-binding and enzymatic specificity. RESULTS +0 17 Crystal structure evidence Crystal structure of JNK1 in complex with the MKP7-CD RESULTS +21 25 JNK1 protein Crystal structure of JNK1 in complex with the MKP7-CD RESULTS +26 41 in complex with protein_state Crystal structure of JNK1 in complex with the MKP7-CD RESULTS +46 50 MKP7 protein Crystal structure of JNK1 in complex with the MKP7-CD RESULTS +51 53 CD structure_element Crystal structure of JNK1 in complex with the MKP7-CD RESULTS +37 41 JNK1 protein To understand the molecular basis of JNK1 recognition by MKP7, we determined the crystal structure of unphosphorylated JNK1 in complex with the MKP7-CD (Fig. 3a, Supplementary Fig. 1a and Table 1). RESULTS +57 61 MKP7 protein To understand the molecular basis of JNK1 recognition by MKP7, we determined the crystal structure of unphosphorylated JNK1 in complex with the MKP7-CD (Fig. 3a, Supplementary Fig. 1a and Table 1). RESULTS +81 98 crystal structure evidence To understand the molecular basis of JNK1 recognition by MKP7, we determined the crystal structure of unphosphorylated JNK1 in complex with the MKP7-CD (Fig. 3a, Supplementary Fig. 1a and Table 1). RESULTS +102 118 unphosphorylated protein_state To understand the molecular basis of JNK1 recognition by MKP7, we determined the crystal structure of unphosphorylated JNK1 in complex with the MKP7-CD (Fig. 3a, Supplementary Fig. 1a and Table 1). RESULTS +119 123 JNK1 protein To understand the molecular basis of JNK1 recognition by MKP7, we determined the crystal structure of unphosphorylated JNK1 in complex with the MKP7-CD (Fig. 3a, Supplementary Fig. 1a and Table 1). RESULTS +124 139 in complex with protein_state To understand the molecular basis of JNK1 recognition by MKP7, we determined the crystal structure of unphosphorylated JNK1 in complex with the MKP7-CD (Fig. 3a, Supplementary Fig. 1a and Table 1). RESULTS +144 148 MKP7 protein To understand the molecular basis of JNK1 recognition by MKP7, we determined the crystal structure of unphosphorylated JNK1 in complex with the MKP7-CD (Fig. 3a, Supplementary Fig. 1a and Table 1). RESULTS +149 151 CD structure_element To understand the molecular basis of JNK1 recognition by MKP7, we determined the crystal structure of unphosphorylated JNK1 in complex with the MKP7-CD (Fig. 3a, Supplementary Fig. 1a and Table 1). RESULTS +16 20 JNK1 protein In the complex, JNK1 has its characteristic bilobal structure comprising an N-terminal lobe rich in β-sheet and a C-terminal lobe that is mostly α-helical. RESULTS +76 91 N-terminal lobe structure_element In the complex, JNK1 has its characteristic bilobal structure comprising an N-terminal lobe rich in β-sheet and a C-terminal lobe that is mostly α-helical. RESULTS +100 107 β-sheet structure_element In the complex, JNK1 has its characteristic bilobal structure comprising an N-terminal lobe rich in β-sheet and a C-terminal lobe that is mostly α-helical. RESULTS +114 129 C-terminal lobe structure_element In the complex, JNK1 has its characteristic bilobal structure comprising an N-terminal lobe rich in β-sheet and a C-terminal lobe that is mostly α-helical. RESULTS +145 154 α-helical structure_element In the complex, JNK1 has its characteristic bilobal structure comprising an N-terminal lobe rich in β-sheet and a C-terminal lobe that is mostly α-helical. RESULTS +23 27 MKP7 protein The overall folding of MKP7-CD is typical of DUSPs, with a central twisted five-stranded β-sheet surrounded by six α-helices. RESULTS +28 30 CD structure_element The overall folding of MKP7-CD is typical of DUSPs, with a central twisted five-stranded β-sheet surrounded by six α-helices. RESULTS +45 50 DUSPs protein_type The overall folding of MKP7-CD is typical of DUSPs, with a central twisted five-stranded β-sheet surrounded by six α-helices. RESULTS +67 96 twisted five-stranded β-sheet structure_element The overall folding of MKP7-CD is typical of DUSPs, with a central twisted five-stranded β-sheet surrounded by six α-helices. RESULTS +115 124 α-helices structure_element The overall folding of MKP7-CD is typical of DUSPs, with a central twisted five-stranded β-sheet surrounded by six α-helices. RESULTS +16 23 β-sheet structure_element One side of the β-sheet is covered with two α-helices and the other is covered with four α-helices (Fig. 3b). RESULTS +44 53 α-helices structure_element One side of the β-sheet is covered with two α-helices and the other is covered with four α-helices (Fig. 3b). RESULTS +89 98 α-helices structure_element One side of the β-sheet is covered with two α-helices and the other is covered with four α-helices (Fig. 3b). RESULTS +4 20 catalytic domain structure_element The catalytic domain of MKP7 interacts with JNK1 through a contiguous surface area that is remote from the active site. RESULTS +24 28 MKP7 protein The catalytic domain of MKP7 interacts with JNK1 through a contiguous surface area that is remote from the active site. RESULTS +44 48 JNK1 protein The catalytic domain of MKP7 interacts with JNK1 through a contiguous surface area that is remote from the active site. RESULTS +107 118 active site site The catalytic domain of MKP7 interacts with JNK1 through a contiguous surface area that is remote from the active site. RESULTS +0 4 MKP7 protein MKP7-CD is positioned onto the JNK1 molecule so that the active site of the phosphatase faces towards the activation segment. RESULTS +5 7 CD structure_element MKP7-CD is positioned onto the JNK1 molecule so that the active site of the phosphatase faces towards the activation segment. RESULTS +31 35 JNK1 protein MKP7-CD is positioned onto the JNK1 molecule so that the active site of the phosphatase faces towards the activation segment. RESULTS +57 68 active site site MKP7-CD is positioned onto the JNK1 molecule so that the active site of the phosphatase faces towards the activation segment. RESULTS +76 87 phosphatase protein_type MKP7-CD is positioned onto the JNK1 molecule so that the active site of the phosphatase faces towards the activation segment. RESULTS +106 124 activation segment structure_element MKP7-CD is positioned onto the JNK1 molecule so that the active site of the phosphatase faces towards the activation segment. RESULTS +6 15 alignment experimental_method In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +23 32 structure evidence In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +36 40 MKP7 protein In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +41 43 CD structure_element In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +57 60 VHR protein In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +75 78 MKP protein_type In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +101 117 catalytic domain structure_element In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +130 134 MKP7 protein In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +135 137 CD structure_element In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +156 168 superimposed experimental_method In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +176 184 r.m.s.d. evidence In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +186 213 root mean squared deviation evidence In an alignment of the structure of MKP7-CD with that of VHR, an atypical ‘MKP' consisting of only a catalytic domain, 119 of 147 MKP7-CD residues could be superimposed with a r.m.s.d. (root mean squared deviation) of 1.05 Å (Fig. 3c). RESULTS +37 42 helix structure_element The most striking difference is that helix α0 and loop α0–β1 of VHR are absent in MKP7-CD. RESULTS +43 45 α0 structure_element The most striking difference is that helix α0 and loop α0–β1 of VHR are absent in MKP7-CD. RESULTS +50 54 loop structure_element The most striking difference is that helix α0 and loop α0–β1 of VHR are absent in MKP7-CD. RESULTS +55 60 α0–β1 structure_element The most striking difference is that helix α0 and loop α0–β1 of VHR are absent in MKP7-CD. RESULTS +64 67 VHR protein The most striking difference is that helix α0 and loop α0–β1 of VHR are absent in MKP7-CD. RESULTS +82 86 MKP7 protein The most striking difference is that helix α0 and loop α0–β1 of VHR are absent in MKP7-CD. RESULTS +87 89 CD structure_element The most striking difference is that helix α0 and loop α0–β1 of VHR are absent in MKP7-CD. RESULTS +43 46 VHR protein Another region that cannot be aligned with VHR is found in loop β3–β4. RESULTS +59 63 loop structure_element Another region that cannot be aligned with VHR is found in loop β3–β4. RESULTS +64 69 β3–β4 structure_element Another region that cannot be aligned with VHR is found in loop β3–β4. RESULTS +5 9 loop structure_element This loop is shortened by nine residues in MKP7-CD compared with that in VHR. RESULTS +43 47 MKP7 protein This loop is shortened by nine residues in MKP7-CD compared with that in VHR. RESULTS +48 50 CD structure_element This loop is shortened by nine residues in MKP7-CD compared with that in VHR. RESULTS +73 76 VHR protein This loop is shortened by nine residues in MKP7-CD compared with that in VHR. RESULTS +6 11 helix structure_element Since helix α0 and the following loop α0–β1 are known for a substrate-recognition motif of VHR and other phosphatases, the absence of these moieties implicates a different substrate-binding mode of MKP7. RESULTS +12 14 α0 structure_element Since helix α0 and the following loop α0–β1 are known for a substrate-recognition motif of VHR and other phosphatases, the absence of these moieties implicates a different substrate-binding mode of MKP7. RESULTS +33 37 loop structure_element Since helix α0 and the following loop α0–β1 are known for a substrate-recognition motif of VHR and other phosphatases, the absence of these moieties implicates a different substrate-binding mode of MKP7. RESULTS +38 43 α0–β1 structure_element Since helix α0 and the following loop α0–β1 are known for a substrate-recognition motif of VHR and other phosphatases, the absence of these moieties implicates a different substrate-binding mode of MKP7. RESULTS +60 87 substrate-recognition motif site Since helix α0 and the following loop α0–β1 are known for a substrate-recognition motif of VHR and other phosphatases, the absence of these moieties implicates a different substrate-binding mode of MKP7. RESULTS +91 94 VHR protein Since helix α0 and the following loop α0–β1 are known for a substrate-recognition motif of VHR and other phosphatases, the absence of these moieties implicates a different substrate-binding mode of MKP7. RESULTS +105 117 phosphatases protein_type Since helix α0 and the following loop α0–β1 are known for a substrate-recognition motif of VHR and other phosphatases, the absence of these moieties implicates a different substrate-binding mode of MKP7. RESULTS +198 202 MKP7 protein Since helix α0 and the following loop α0–β1 are known for a substrate-recognition motif of VHR and other phosphatases, the absence of these moieties implicates a different substrate-binding mode of MKP7. RESULTS +4 15 active site site The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +19 23 MKP7 protein The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +40 62 phosphate-binding loop structure_element The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +64 70 P-loop structure_element The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +72 78 Cys244 residue_name_number The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +79 85 Leu245 residue_name_number The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +86 92 Ala246 residue_name_number The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +93 99 Gly247 residue_name_number The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +100 106 Ile248 residue_name_number The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +107 113 Ser249 residue_name_number The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +114 120 Arg250 residue_name_number The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +127 133 Asp213 residue_name_number The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +141 158 general acid loop structure_element The active site of MKP7 consists of the phosphate-binding loop (P-loop, Cys244-Leu245-Ala246-Gly247-Ile248-Ser249-Arg250), and Asp213 in the general acid loop (Fig. 3b and Supplementary Fig. 1b). RESULTS +4 8 MKP7 protein The MKP7-CD structure near the active site exhibits a typical active conformation as found in VHR and other PTPs. RESULTS +9 11 CD structure_element The MKP7-CD structure near the active site exhibits a typical active conformation as found in VHR and other PTPs. RESULTS +12 21 structure evidence The MKP7-CD structure near the active site exhibits a typical active conformation as found in VHR and other PTPs. RESULTS +31 42 active site site The MKP7-CD structure near the active site exhibits a typical active conformation as found in VHR and other PTPs. RESULTS +62 81 active conformation protein_state The MKP7-CD structure near the active site exhibits a typical active conformation as found in VHR and other PTPs. RESULTS +94 97 VHR protein The MKP7-CD structure near the active site exhibits a typical active conformation as found in VHR and other PTPs. RESULTS +108 112 PTPs protein_type The MKP7-CD structure near the active site exhibits a typical active conformation as found in VHR and other PTPs. RESULTS +4 21 catalytic residue site The catalytic residue, Cys244, is located just after strand β5 and optimally positioned for nucleophilic attack. RESULTS +23 29 Cys244 residue_name_number The catalytic residue, Cys244, is located just after strand β5 and optimally positioned for nucleophilic attack. RESULTS +53 59 strand structure_element The catalytic residue, Cys244, is located just after strand β5 and optimally positioned for nucleophilic attack. RESULTS +60 62 β5 structure_element The catalytic residue, Cys244, is located just after strand β5 and optimally positioned for nucleophilic attack. RESULTS +0 6 Asp213 residue_name_number Asp213 in MKP7 also adopts a position similar to that of Asp92 in VHR (Supplementary Fig. 1c), indicating that Asp213 is likely to function as the general acid in MKP7. RESULTS +10 14 MKP7 protein Asp213 in MKP7 also adopts a position similar to that of Asp92 in VHR (Supplementary Fig. 1c), indicating that Asp213 is likely to function as the general acid in MKP7. RESULTS +57 62 Asp92 residue_name_number Asp213 in MKP7 also adopts a position similar to that of Asp92 in VHR (Supplementary Fig. 1c), indicating that Asp213 is likely to function as the general acid in MKP7. RESULTS +66 69 VHR protein Asp213 in MKP7 also adopts a position similar to that of Asp92 in VHR (Supplementary Fig. 1c), indicating that Asp213 is likely to function as the general acid in MKP7. RESULTS +111 117 Asp213 residue_name_number Asp213 in MKP7 also adopts a position similar to that of Asp92 in VHR (Supplementary Fig. 1c), indicating that Asp213 is likely to function as the general acid in MKP7. RESULTS +163 167 MKP7 protein Asp213 in MKP7 also adopts a position similar to that of Asp92 in VHR (Supplementary Fig. 1c), indicating that Asp213 is likely to function as the general acid in MKP7. RESULTS +34 42 chloride chemical We also observed the binding of a chloride ion in the active site of MKP7-CD. RESULTS +54 65 active site site We also observed the binding of a chloride ion in the active site of MKP7-CD. RESULTS +69 73 MKP7 protein We also observed the binding of a chloride ion in the active site of MKP7-CD. RESULTS +74 76 CD structure_element We also observed the binding of a chloride ion in the active site of MKP7-CD. RESULTS +30 36 Cys244 residue_name_number It is located 3.36 Å from the Cys244 side chain and makes electrostatic interactions with the dipole moment of helix α3 and with several main-chain amide groups. RESULTS +58 84 electrostatic interactions bond_interaction It is located 3.36 Å from the Cys244 side chain and makes electrostatic interactions with the dipole moment of helix α3 and with several main-chain amide groups. RESULTS +111 116 helix structure_element It is located 3.36 Å from the Cys244 side chain and makes electrostatic interactions with the dipole moment of helix α3 and with several main-chain amide groups. RESULTS +117 119 α3 structure_element It is located 3.36 Å from the Cys244 side chain and makes electrostatic interactions with the dipole moment of helix α3 and with several main-chain amide groups. RESULTS +18 36 strictly conserved protein_state The side chain of strictly conserved Arg250 is oriented towards the negatively charged chloride, similar to the canonical phosphate-coordinating conformation. RESULTS +37 43 Arg250 residue_name_number The side chain of strictly conserved Arg250 is oriented towards the negatively charged chloride, similar to the canonical phosphate-coordinating conformation. RESULTS +87 95 chloride chemical The side chain of strictly conserved Arg250 is oriented towards the negatively charged chloride, similar to the canonical phosphate-coordinating conformation. RESULTS +122 157 phosphate-coordinating conformation structure_element The side chain of strictly conserved Arg250 is oriented towards the negatively charged chloride, similar to the canonical phosphate-coordinating conformation. RESULTS +10 18 chloride chemical Thus this chloride ion is a mimic for the phosphate group of the substrate, as revealed by a comparison with the structure of PTP1B in complex with phosphotyrosine (Supplementary Fig. 1d). RESULTS +42 51 phosphate chemical Thus this chloride ion is a mimic for the phosphate group of the substrate, as revealed by a comparison with the structure of PTP1B in complex with phosphotyrosine (Supplementary Fig. 1d). RESULTS +113 122 structure evidence Thus this chloride ion is a mimic for the phosphate group of the substrate, as revealed by a comparison with the structure of PTP1B in complex with phosphotyrosine (Supplementary Fig. 1d). RESULTS +126 131 PTP1B protein Thus this chloride ion is a mimic for the phosphate group of the substrate, as revealed by a comparison with the structure of PTP1B in complex with phosphotyrosine (Supplementary Fig. 1d). RESULTS +132 147 in complex with protein_state Thus this chloride ion is a mimic for the phosphate group of the substrate, as revealed by a comparison with the structure of PTP1B in complex with phosphotyrosine (Supplementary Fig. 1d). RESULTS +148 163 phosphotyrosine residue_name Thus this chloride ion is a mimic for the phosphate group of the substrate, as revealed by a comparison with the structure of PTP1B in complex with phosphotyrosine (Supplementary Fig. 1d). RESULTS +49 53 MKP7 protein Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +54 56 CD structure_element Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +88 91 VHR protein Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +113 119 P-loop structure_element Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +123 127 MKP7 protein Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +192 195 VHR protein Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +197 203 Cys124 residue_name_number Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +204 210 Arg125 residue_name_number Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +211 217 Glu126 residue_name_number Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +218 224 Gly127 residue_name_number Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +225 231 Tyr128 residue_name_number Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +232 238 Gly129 residue_name_number Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +239 245 Arg130 residue_name_number Although the catalytically important residues in MKP7-CD are well aligned with those in VHR, the residues in the P-loop of MKP7 are smaller and have a more hydrophobic character than those of VHR (Cys124-Arg125-Glu126-Gly127-Tyr128-Gly129-Arg130; Fig. 3b,c). RESULTS +162 174 phosphatases protein_type The difference in the polarity/hydrophobicity of the surface may also point to the origin of the differences in the substrate-recognition mechanism for these two phosphatases (Supplementary Fig. 1e,f). RESULTS +16 20 MKP7 protein In the complex, MKP7-CD and JNK1 form extensive protein–protein interactions involving the C-terminal helices of MKP7-CD and C-lobe of JNK1 (Fig. 3d,e). RESULTS +21 23 CD structure_element In the complex, MKP7-CD and JNK1 form extensive protein–protein interactions involving the C-terminal helices of MKP7-CD and C-lobe of JNK1 (Fig. 3d,e). RESULTS +28 32 JNK1 protein In the complex, MKP7-CD and JNK1 form extensive protein–protein interactions involving the C-terminal helices of MKP7-CD and C-lobe of JNK1 (Fig. 3d,e). RESULTS +91 109 C-terminal helices structure_element In the complex, MKP7-CD and JNK1 form extensive protein–protein interactions involving the C-terminal helices of MKP7-CD and C-lobe of JNK1 (Fig. 3d,e). RESULTS +113 117 MKP7 protein In the complex, MKP7-CD and JNK1 form extensive protein–protein interactions involving the C-terminal helices of MKP7-CD and C-lobe of JNK1 (Fig. 3d,e). RESULTS +118 120 CD structure_element In the complex, MKP7-CD and JNK1 form extensive protein–protein interactions involving the C-terminal helices of MKP7-CD and C-lobe of JNK1 (Fig. 3d,e). RESULTS +125 131 C-lobe structure_element In the complex, MKP7-CD and JNK1 form extensive protein–protein interactions involving the C-terminal helices of MKP7-CD and C-lobe of JNK1 (Fig. 3d,e). RESULTS +135 139 JNK1 protein In the complex, MKP7-CD and JNK1 form extensive protein–protein interactions involving the C-terminal helices of MKP7-CD and C-lobe of JNK1 (Fig. 3d,e). RESULTS +76 93 C-terminal domain structure_element As a result, the buried solvent-accessible surface area is ∼1,315 Å. In the C-terminal domain, JNK1 has an insertion after the helix αG. This insertion consists of two helices (α1L14 and α2L14) that are common to all members of the MAPK family. RESULTS +95 99 JNK1 protein As a result, the buried solvent-accessible surface area is ∼1,315 Å. In the C-terminal domain, JNK1 has an insertion after the helix αG. This insertion consists of two helices (α1L14 and α2L14) that are common to all members of the MAPK family. RESULTS +127 132 helix structure_element As a result, the buried solvent-accessible surface area is ∼1,315 Å. In the C-terminal domain, JNK1 has an insertion after the helix αG. This insertion consists of two helices (α1L14 and α2L14) that are common to all members of the MAPK family. RESULTS +133 135 αG structure_element As a result, the buried solvent-accessible surface area is ∼1,315 Å. In the C-terminal domain, JNK1 has an insertion after the helix αG. This insertion consists of two helices (α1L14 and α2L14) that are common to all members of the MAPK family. RESULTS +168 175 helices structure_element As a result, the buried solvent-accessible surface area is ∼1,315 Å. In the C-terminal domain, JNK1 has an insertion after the helix αG. This insertion consists of two helices (α1L14 and α2L14) that are common to all members of the MAPK family. RESULTS +177 182 α1L14 structure_element As a result, the buried solvent-accessible surface area is ∼1,315 Å. In the C-terminal domain, JNK1 has an insertion after the helix αG. This insertion consists of two helices (α1L14 and α2L14) that are common to all members of the MAPK family. RESULTS +187 192 α2L14 structure_element As a result, the buried solvent-accessible surface area is ∼1,315 Å. In the C-terminal domain, JNK1 has an insertion after the helix αG. This insertion consists of two helices (α1L14 and α2L14) that are common to all members of the MAPK family. RESULTS +232 243 MAPK family protein_type As a result, the buried solvent-accessible surface area is ∼1,315 Å. In the C-terminal domain, JNK1 has an insertion after the helix αG. This insertion consists of two helices (α1L14 and α2L14) that are common to all members of the MAPK family. RESULTS +4 23 interactive surface site The interactive surface in JNK1, formed by the helices αG and α2L14, displays a hydrophobic region, centred at Trp234 (Fig. 3d). RESULTS +27 31 JNK1 protein The interactive surface in JNK1, formed by the helices αG and α2L14, displays a hydrophobic region, centred at Trp234 (Fig. 3d). RESULTS +47 54 helices structure_element The interactive surface in JNK1, formed by the helices αG and α2L14, displays a hydrophobic region, centred at Trp234 (Fig. 3d). RESULTS +55 57 αG structure_element The interactive surface in JNK1, formed by the helices αG and α2L14, displays a hydrophobic region, centred at Trp234 (Fig. 3d). RESULTS +62 67 α2L14 structure_element The interactive surface in JNK1, formed by the helices αG and α2L14, displays a hydrophobic region, centred at Trp234 (Fig. 3d). RESULTS +80 98 hydrophobic region site The interactive surface in JNK1, formed by the helices αG and α2L14, displays a hydrophobic region, centred at Trp234 (Fig. 3d). RESULTS +111 117 Trp234 residue_name_number The interactive surface in JNK1, formed by the helices αG and α2L14, displays a hydrophobic region, centred at Trp234 (Fig. 3d). RESULTS +4 23 MKP7-docking region site The MKP7-docking region includes two helices, α4 and α5, and the general acid loop. RESULTS +37 44 helices structure_element The MKP7-docking region includes two helices, α4 and α5, and the general acid loop. RESULTS +46 48 α4 structure_element The MKP7-docking region includes two helices, α4 and α5, and the general acid loop. RESULTS +53 55 α5 structure_element The MKP7-docking region includes two helices, α4 and α5, and the general acid loop. RESULTS +65 82 general acid loop structure_element The MKP7-docking region includes two helices, α4 and α5, and the general acid loop. RESULTS +21 27 Phe285 residue_name_number The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +31 35 MKP7 protein The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +36 44 α5-helix structure_element The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +61 79 hydrophobic pocket site The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +83 87 JNK1 protein The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +114 120 Ile197 residue_name_number The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +122 128 Leu198 residue_name_number The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +130 136 Ile231 residue_name_number The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +138 144 Trp234 residue_name_number The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +146 152 Val256 residue_name_number The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +154 160 Tyr259 residue_name_number The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +162 168 Val260 residue_name_number The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +198 204 His230 residue_name_number The aromatic ring of Phe285 on MKP7 α5-helix is nestled in a hydrophobic pocket on JNK1, formed by side chains of Ile197, Leu198, Ile231, Trp234, Val256, Tyr259, Val260 and the aliphatic portion of His230 (Fig. 3d,f and Supplementary Fig. 1g). RESULTS +23 37 hydrogen bonds bond_interaction In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +46 52 Ser282 residue_name_number In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +57 63 Asn286 residue_name_number In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +67 71 MKP7 protein In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +76 82 His230 residue_name_number In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +87 93 Thr255 residue_name_number In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +97 101 JNK1 protein In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +125 131 Phe215 residue_name_number In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +139 156 general acid loop structure_element In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +160 164 MKP7 protein In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +168 183 hydrogen-bonded bond_interaction In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +205 211 Gln253 residue_name_number In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +215 219 JNK1 protein In addition, there are hydrogen bonds between Ser282 and Asn286 of MKP7 and His230 and Thr255 of JNK1, and the main chain of Phe215 in the general acid loop of MKP7 is hydrogen-bonded to the side chain of Gln253 in JNK1. RESULTS +4 27 second interactive area site The second interactive area involves the α4 helix of MKP7 and charged/polar residues of JNK1 (Fig. 3e). RESULTS +41 49 α4 helix structure_element The second interactive area involves the α4 helix of MKP7 and charged/polar residues of JNK1 (Fig. 3e). RESULTS +53 57 MKP7 protein The second interactive area involves the α4 helix of MKP7 and charged/polar residues of JNK1 (Fig. 3e). RESULTS +88 92 JNK1 protein The second interactive area involves the α4 helix of MKP7 and charged/polar residues of JNK1 (Fig. 3e). RESULTS +19 25 Asp268 residue_name_number The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +29 33 MKP7 protein The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +42 53 salt bridge bond_interaction The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +73 79 Arg263 residue_name_number The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +83 87 JNK1 protein The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +93 99 Lys275 residue_name_number The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +103 107 MKP7 protein The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +116 129 hydrogen bond bond_interaction The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +136 147 salt bridge bond_interaction The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +153 159 Thr228 residue_name_number The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +164 170 Asp229 residue_name_number The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +174 178 JNK1 protein The carboxylate of Asp268 in MKP7 forms a salt bridge with side chain of Arg263 in JNK1, and Lys275 of MKP7 forms a hydrogen bond and a salt bridge with Thr228 and Asp229 of JNK1, respectively. RESULTS +0 19 Mutational analysis experimental_method Mutational analysis of the JNK1–MKP7 docking interface RESULTS +27 54 JNK1–MKP7 docking interface site Mutational analysis of the JNK1–MKP7 docking interface RESULTS +86 101 point mutations experimental_method To assess the importance of the aforementioned interactions, we generated a series of point mutations on the MKP7-CD and examined their effect on the MKP7-catalysed JNK1 dephosphorylation (Fig. 4a). RESULTS +109 113 MKP7 protein To assess the importance of the aforementioned interactions, we generated a series of point mutations on the MKP7-CD and examined their effect on the MKP7-catalysed JNK1 dephosphorylation (Fig. 4a). RESULTS +114 116 CD structure_element To assess the importance of the aforementioned interactions, we generated a series of point mutations on the MKP7-CD and examined their effect on the MKP7-catalysed JNK1 dephosphorylation (Fig. 4a). RESULTS +150 154 MKP7 protein To assess the importance of the aforementioned interactions, we generated a series of point mutations on the MKP7-CD and examined their effect on the MKP7-catalysed JNK1 dephosphorylation (Fig. 4a). RESULTS +165 169 JNK1 protein To assess the importance of the aforementioned interactions, we generated a series of point mutations on the MKP7-CD and examined their effect on the MKP7-catalysed JNK1 dephosphorylation (Fig. 4a). RESULTS +170 187 dephosphorylation ptm To assess the importance of the aforementioned interactions, we generated a series of point mutations on the MKP7-CD and examined their effect on the MKP7-catalysed JNK1 dephosphorylation (Fig. 4a). RESULTS +30 36 Phe285 residue_name_number When the hydrophobic residues Phe285 and Phe287 on the α5 of MKP7-CD were replaced by Asp or Ala, their phosphatase activities for JNK1 dephosphorylation decreased ∼10-fold. RESULTS +41 47 Phe287 residue_name_number When the hydrophobic residues Phe285 and Phe287 on the α5 of MKP7-CD were replaced by Asp or Ala, their phosphatase activities for JNK1 dephosphorylation decreased ∼10-fold. RESULTS +55 57 α5 structure_element When the hydrophobic residues Phe285 and Phe287 on the α5 of MKP7-CD were replaced by Asp or Ala, their phosphatase activities for JNK1 dephosphorylation decreased ∼10-fold. RESULTS +61 65 MKP7 protein When the hydrophobic residues Phe285 and Phe287 on the α5 of MKP7-CD were replaced by Asp or Ala, their phosphatase activities for JNK1 dephosphorylation decreased ∼10-fold. RESULTS +66 68 CD structure_element When the hydrophobic residues Phe285 and Phe287 on the α5 of MKP7-CD were replaced by Asp or Ala, their phosphatase activities for JNK1 dephosphorylation decreased ∼10-fold. RESULTS +74 82 replaced experimental_method When the hydrophobic residues Phe285 and Phe287 on the α5 of MKP7-CD were replaced by Asp or Ala, their phosphatase activities for JNK1 dephosphorylation decreased ∼10-fold. RESULTS +86 89 Asp residue_name When the hydrophobic residues Phe285 and Phe287 on the α5 of MKP7-CD were replaced by Asp or Ala, their phosphatase activities for JNK1 dephosphorylation decreased ∼10-fold. RESULTS +93 96 Ala residue_name When the hydrophobic residues Phe285 and Phe287 on the α5 of MKP7-CD were replaced by Asp or Ala, their phosphatase activities for JNK1 dephosphorylation decreased ∼10-fold. RESULTS +131 135 JNK1 protein When the hydrophobic residues Phe285 and Phe287 on the α5 of MKP7-CD were replaced by Asp or Ala, their phosphatase activities for JNK1 dephosphorylation decreased ∼10-fold. RESULTS +136 153 dephosphorylation ptm When the hydrophobic residues Phe285 and Phe287 on the α5 of MKP7-CD were replaced by Asp or Ala, their phosphatase activities for JNK1 dephosphorylation decreased ∼10-fold. RESULTS +15 26 replacement experimental_method In comparison, replacement of the other residues (Phe215, Asp268, Lys275, Ser282, Asn286 and Leu292) with an Ala or Asp individually led to a modest decrease in catalytic efficiencies, suggesting that this position may only affect some selectivity of MKP. RESULTS +50 56 Phe215 residue_name_number In comparison, replacement of the other residues (Phe215, Asp268, Lys275, Ser282, Asn286 and Leu292) with an Ala or Asp individually led to a modest decrease in catalytic efficiencies, suggesting that this position may only affect some selectivity of MKP. RESULTS +58 64 Asp268 residue_name_number In comparison, replacement of the other residues (Phe215, Asp268, Lys275, Ser282, Asn286 and Leu292) with an Ala or Asp individually led to a modest decrease in catalytic efficiencies, suggesting that this position may only affect some selectivity of MKP. RESULTS +66 72 Lys275 residue_name_number In comparison, replacement of the other residues (Phe215, Asp268, Lys275, Ser282, Asn286 and Leu292) with an Ala or Asp individually led to a modest decrease in catalytic efficiencies, suggesting that this position may only affect some selectivity of MKP. RESULTS +74 80 Ser282 residue_name_number In comparison, replacement of the other residues (Phe215, Asp268, Lys275, Ser282, Asn286 and Leu292) with an Ala or Asp individually led to a modest decrease in catalytic efficiencies, suggesting that this position may only affect some selectivity of MKP. RESULTS +82 88 Asn286 residue_name_number In comparison, replacement of the other residues (Phe215, Asp268, Lys275, Ser282, Asn286 and Leu292) with an Ala or Asp individually led to a modest decrease in catalytic efficiencies, suggesting that this position may only affect some selectivity of MKP. RESULTS +93 99 Leu292 residue_name_number In comparison, replacement of the other residues (Phe215, Asp268, Lys275, Ser282, Asn286 and Leu292) with an Ala or Asp individually led to a modest decrease in catalytic efficiencies, suggesting that this position may only affect some selectivity of MKP. RESULTS +109 112 Ala residue_name In comparison, replacement of the other residues (Phe215, Asp268, Lys275, Ser282, Asn286 and Leu292) with an Ala or Asp individually led to a modest decrease in catalytic efficiencies, suggesting that this position may only affect some selectivity of MKP. RESULTS +116 119 Asp residue_name In comparison, replacement of the other residues (Phe215, Asp268, Lys275, Ser282, Asn286 and Leu292) with an Ala or Asp individually led to a modest decrease in catalytic efficiencies, suggesting that this position may only affect some selectivity of MKP. RESULTS +251 254 MKP protein_type In comparison, replacement of the other residues (Phe215, Asp268, Lys275, Ser282, Asn286 and Leu292) with an Ala or Asp individually led to a modest decrease in catalytic efficiencies, suggesting that this position may only affect some selectivity of MKP. RESULTS +0 8 Mutation experimental_method Mutation of Leu288 markedly reduced its solubility when expressed in Escherichia coli, resulting in the insoluble aggregation of the mutant protein. RESULTS +12 18 Leu288 residue_name_number Mutation of Leu288 markedly reduced its solubility when expressed in Escherichia coli, resulting in the insoluble aggregation of the mutant protein. RESULTS +69 85 Escherichia coli species Mutation of Leu288 markedly reduced its solubility when expressed in Escherichia coli, resulting in the insoluble aggregation of the mutant protein. RESULTS +133 139 mutant protein_state Mutation of Leu288 markedly reduced its solubility when expressed in Escherichia coli, resulting in the insoluble aggregation of the mutant protein. RESULTS +0 23 Gel filtration analysis experimental_method Gel filtration analysis further confirmed the key role of Phe285 in the MKP7–JNK1 interaction: no F285D–JNK1 complex was detected when 3 molar equivalents of MKP7-CD (F285D) were mixed with 1 molar equivalent of JNK1 (Fig. 4b). RESULTS +58 64 Phe285 residue_name_number Gel filtration analysis further confirmed the key role of Phe285 in the MKP7–JNK1 interaction: no F285D–JNK1 complex was detected when 3 molar equivalents of MKP7-CD (F285D) were mixed with 1 molar equivalent of JNK1 (Fig. 4b). RESULTS +72 76 MKP7 protein Gel filtration analysis further confirmed the key role of Phe285 in the MKP7–JNK1 interaction: no F285D–JNK1 complex was detected when 3 molar equivalents of MKP7-CD (F285D) were mixed with 1 molar equivalent of JNK1 (Fig. 4b). RESULTS +77 81 JNK1 protein Gel filtration analysis further confirmed the key role of Phe285 in the MKP7–JNK1 interaction: no F285D–JNK1 complex was detected when 3 molar equivalents of MKP7-CD (F285D) were mixed with 1 molar equivalent of JNK1 (Fig. 4b). RESULTS +98 108 F285D–JNK1 complex_assembly Gel filtration analysis further confirmed the key role of Phe285 in the MKP7–JNK1 interaction: no F285D–JNK1 complex was detected when 3 molar equivalents of MKP7-CD (F285D) were mixed with 1 molar equivalent of JNK1 (Fig. 4b). RESULTS +158 162 MKP7 protein Gel filtration analysis further confirmed the key role of Phe285 in the MKP7–JNK1 interaction: no F285D–JNK1 complex was detected when 3 molar equivalents of MKP7-CD (F285D) were mixed with 1 molar equivalent of JNK1 (Fig. 4b). RESULTS +163 165 CD structure_element Gel filtration analysis further confirmed the key role of Phe285 in the MKP7–JNK1 interaction: no F285D–JNK1 complex was detected when 3 molar equivalents of MKP7-CD (F285D) were mixed with 1 molar equivalent of JNK1 (Fig. 4b). RESULTS +167 172 F285D mutant Gel filtration analysis further confirmed the key role of Phe285 in the MKP7–JNK1 interaction: no F285D–JNK1 complex was detected when 3 molar equivalents of MKP7-CD (F285D) were mixed with 1 molar equivalent of JNK1 (Fig. 4b). RESULTS +212 216 JNK1 protein Gel filtration analysis further confirmed the key role of Phe285 in the MKP7–JNK1 interaction: no F285D–JNK1 complex was detected when 3 molar equivalents of MKP7-CD (F285D) were mixed with 1 molar equivalent of JNK1 (Fig. 4b). RESULTS +15 23 mutation experimental_method Interestingly, mutation of Phe287 results in a considerable loss of activity against pJNK1 without altering the affinity of MKP7-CD for JNK1 (Supplementary Fig. 2a). RESULTS +27 33 Phe287 residue_name_number Interestingly, mutation of Phe287 results in a considerable loss of activity against pJNK1 without altering the affinity of MKP7-CD for JNK1 (Supplementary Fig. 2a). RESULTS +85 86 p protein_state Interestingly, mutation of Phe287 results in a considerable loss of activity against pJNK1 without altering the affinity of MKP7-CD for JNK1 (Supplementary Fig. 2a). RESULTS +86 90 JNK1 protein Interestingly, mutation of Phe287 results in a considerable loss of activity against pJNK1 without altering the affinity of MKP7-CD for JNK1 (Supplementary Fig. 2a). RESULTS +112 120 affinity evidence Interestingly, mutation of Phe287 results in a considerable loss of activity against pJNK1 without altering the affinity of MKP7-CD for JNK1 (Supplementary Fig. 2a). RESULTS +124 128 MKP7 protein Interestingly, mutation of Phe287 results in a considerable loss of activity against pJNK1 without altering the affinity of MKP7-CD for JNK1 (Supplementary Fig. 2a). RESULTS +129 131 CD structure_element Interestingly, mutation of Phe287 results in a considerable loss of activity against pJNK1 without altering the affinity of MKP7-CD for JNK1 (Supplementary Fig. 2a). RESULTS +136 140 JNK1 protein Interestingly, mutation of Phe287 results in a considerable loss of activity against pJNK1 without altering the affinity of MKP7-CD for JNK1 (Supplementary Fig. 2a). RESULTS +30 45 point mutations experimental_method We also generated a series of point mutations in the JNK1 and assessed the effect on JNK1 binding using the GST pull-down assay (Fig. 4c). RESULTS +53 57 JNK1 protein We also generated a series of point mutations in the JNK1 and assessed the effect on JNK1 binding using the GST pull-down assay (Fig. 4c). RESULTS +85 89 JNK1 protein We also generated a series of point mutations in the JNK1 and assessed the effect on JNK1 binding using the GST pull-down assay (Fig. 4c). RESULTS +108 127 GST pull-down assay experimental_method We also generated a series of point mutations in the JNK1 and assessed the effect on JNK1 binding using the GST pull-down assay (Fig. 4c). RESULTS +0 12 Substitution experimental_method Substitution at Asp229, Trp234, Thr255, Val256, Tyr259 and Val260 significantly reduced the binding affinity of MKP7-CD for JNK. RESULTS +16 22 Asp229 residue_name_number Substitution at Asp229, Trp234, Thr255, Val256, Tyr259 and Val260 significantly reduced the binding affinity of MKP7-CD for JNK. RESULTS +24 30 Trp234 residue_name_number Substitution at Asp229, Trp234, Thr255, Val256, Tyr259 and Val260 significantly reduced the binding affinity of MKP7-CD for JNK. RESULTS +32 38 Thr255 residue_name_number Substitution at Asp229, Trp234, Thr255, Val256, Tyr259 and Val260 significantly reduced the binding affinity of MKP7-CD for JNK. RESULTS +40 46 Val256 residue_name_number Substitution at Asp229, Trp234, Thr255, Val256, Tyr259 and Val260 significantly reduced the binding affinity of MKP7-CD for JNK. RESULTS +48 54 Tyr259 residue_name_number Substitution at Asp229, Trp234, Thr255, Val256, Tyr259 and Val260 significantly reduced the binding affinity of MKP7-CD for JNK. RESULTS +59 65 Val260 residue_name_number Substitution at Asp229, Trp234, Thr255, Val256, Tyr259 and Val260 significantly reduced the binding affinity of MKP7-CD for JNK. RESULTS +92 108 binding affinity evidence Substitution at Asp229, Trp234, Thr255, Val256, Tyr259 and Val260 significantly reduced the binding affinity of MKP7-CD for JNK. RESULTS +112 116 MKP7 protein Substitution at Asp229, Trp234, Thr255, Val256, Tyr259 and Val260 significantly reduced the binding affinity of MKP7-CD for JNK. RESULTS +117 119 CD structure_element Substitution at Asp229, Trp234, Thr255, Val256, Tyr259 and Val260 significantly reduced the binding affinity of MKP7-CD for JNK. RESULTS +124 127 JNK protein_type Substitution at Asp229, Trp234, Thr255, Val256, Tyr259 and Val260 significantly reduced the binding affinity of MKP7-CD for JNK. RESULTS +154 160 mutant protein_state To determine whether the deficiencies in their abilities to bind partner proteins or carry out catalytic function are owing to misfolding of the purified mutant proteins, we also examined the folding properties of the JNK1 and MKP7 mutants with circular dichroism. RESULTS +218 222 JNK1 protein To determine whether the deficiencies in their abilities to bind partner proteins or carry out catalytic function are owing to misfolding of the purified mutant proteins, we also examined the folding properties of the JNK1 and MKP7 mutants with circular dichroism. RESULTS +227 231 MKP7 protein To determine whether the deficiencies in their abilities to bind partner proteins or carry out catalytic function are owing to misfolding of the purified mutant proteins, we also examined the folding properties of the JNK1 and MKP7 mutants with circular dichroism. RESULTS +232 239 mutants protein_state To determine whether the deficiencies in their abilities to bind partner proteins or carry out catalytic function are owing to misfolding of the purified mutant proteins, we also examined the folding properties of the JNK1 and MKP7 mutants with circular dichroism. RESULTS +245 263 circular dichroism experimental_method To determine whether the deficiencies in their abilities to bind partner proteins or carry out catalytic function are owing to misfolding of the purified mutant proteins, we also examined the folding properties of the JNK1 and MKP7 mutants with circular dichroism. RESULTS +4 11 spectra evidence The spectra of these mutants are similar to the wild-type proteins, indicating that these mutants fold as well as the wild-type proteins (Fig. 4d,e). RESULTS +21 28 mutants protein_state The spectra of these mutants are similar to the wild-type proteins, indicating that these mutants fold as well as the wild-type proteins (Fig. 4d,e). RESULTS +48 57 wild-type protein_state The spectra of these mutants are similar to the wild-type proteins, indicating that these mutants fold as well as the wild-type proteins (Fig. 4d,e). RESULTS +90 97 mutants protein_state The spectra of these mutants are similar to the wild-type proteins, indicating that these mutants fold as well as the wild-type proteins (Fig. 4d,e). RESULTS +118 127 wild-type protein_state The spectra of these mutants are similar to the wild-type proteins, indicating that these mutants fold as well as the wild-type proteins (Fig. 4d,e). RESULTS +62 84 crystallographic model evidence Taken together, these results are consistent with the present crystallographic model, which reveal the hydrophobic contacts between the MKP7 catalytic domain and JNK1 have a predominant role in the enzyme–substrate interaction, and hydrophobic residue Phe285 in the MKP7-CD is a key residue for its high-affinity binding to JNK1. RESULTS +103 123 hydrophobic contacts bond_interaction Taken together, these results are consistent with the present crystallographic model, which reveal the hydrophobic contacts between the MKP7 catalytic domain and JNK1 have a predominant role in the enzyme–substrate interaction, and hydrophobic residue Phe285 in the MKP7-CD is a key residue for its high-affinity binding to JNK1. RESULTS +136 140 MKP7 protein Taken together, these results are consistent with the present crystallographic model, which reveal the hydrophobic contacts between the MKP7 catalytic domain and JNK1 have a predominant role in the enzyme–substrate interaction, and hydrophobic residue Phe285 in the MKP7-CD is a key residue for its high-affinity binding to JNK1. RESULTS +141 157 catalytic domain structure_element Taken together, these results are consistent with the present crystallographic model, which reveal the hydrophobic contacts between the MKP7 catalytic domain and JNK1 have a predominant role in the enzyme–substrate interaction, and hydrophobic residue Phe285 in the MKP7-CD is a key residue for its high-affinity binding to JNK1. RESULTS +162 166 JNK1 protein Taken together, these results are consistent with the present crystallographic model, which reveal the hydrophobic contacts between the MKP7 catalytic domain and JNK1 have a predominant role in the enzyme–substrate interaction, and hydrophobic residue Phe285 in the MKP7-CD is a key residue for its high-affinity binding to JNK1. RESULTS +252 258 Phe285 residue_name_number Taken together, these results are consistent with the present crystallographic model, which reveal the hydrophobic contacts between the MKP7 catalytic domain and JNK1 have a predominant role in the enzyme–substrate interaction, and hydrophobic residue Phe285 in the MKP7-CD is a key residue for its high-affinity binding to JNK1. RESULTS +266 270 MKP7 protein Taken together, these results are consistent with the present crystallographic model, which reveal the hydrophobic contacts between the MKP7 catalytic domain and JNK1 have a predominant role in the enzyme–substrate interaction, and hydrophobic residue Phe285 in the MKP7-CD is a key residue for its high-affinity binding to JNK1. RESULTS +271 273 CD structure_element Taken together, these results are consistent with the present crystallographic model, which reveal the hydrophobic contacts between the MKP7 catalytic domain and JNK1 have a predominant role in the enzyme–substrate interaction, and hydrophobic residue Phe285 in the MKP7-CD is a key residue for its high-affinity binding to JNK1. RESULTS +324 328 JNK1 protein Taken together, these results are consistent with the present crystallographic model, which reveal the hydrophobic contacts between the MKP7 catalytic domain and JNK1 have a predominant role in the enzyme–substrate interaction, and hydrophobic residue Phe285 in the MKP7-CD is a key residue for its high-affinity binding to JNK1. RESULTS +77 81 MKPs protein_type It has previously been reported that several cytosolic and inducible nuclear MKPs undergo catalytic activation upon interaction with the MAPK substrates. RESULTS +137 141 MAPK protein_type It has previously been reported that several cytosolic and inducible nuclear MKPs undergo catalytic activation upon interaction with the MAPK substrates. RESULTS +30 34 MKP3 protein This allosteric activation of MKP3 has been well-documented in vitro using pNPP, a small-molecule phosphotyrosine analogue of its normal substrate. RESULTS +75 79 pNPP chemical This allosteric activation of MKP3 has been well-documented in vitro using pNPP, a small-molecule phosphotyrosine analogue of its normal substrate. RESULTS +98 113 phosphotyrosine residue_name This allosteric activation of MKP3 has been well-documented in vitro using pNPP, a small-molecule phosphotyrosine analogue of its normal substrate. RESULTS +16 23 pNPPase protein_type We then assayed pNPPase activities of MKP7ΔC304 and MKP7-CD in the presence of JNK1. RESULTS +38 47 MKP7ΔC304 mutant We then assayed pNPPase activities of MKP7ΔC304 and MKP7-CD in the presence of JNK1. RESULTS +52 56 MKP7 protein We then assayed pNPPase activities of MKP7ΔC304 and MKP7-CD in the presence of JNK1. RESULTS +57 59 CD structure_element We then assayed pNPPase activities of MKP7ΔC304 and MKP7-CD in the presence of JNK1. RESULTS +67 78 presence of protein_state We then assayed pNPPase activities of MKP7ΔC304 and MKP7-CD in the presence of JNK1. RESULTS +79 83 JNK1 protein We then assayed pNPPase activities of MKP7ΔC304 and MKP7-CD in the presence of JNK1. RESULTS +0 10 Incubation experimental_method Incubation of MKP7 with JNK1 did not markedly stimulate the phosphatase activity, which is consistent with previous results that MKP7 solely possesses the intrinsic activity (Supplementary Fig. 2b). RESULTS +14 18 MKP7 protein Incubation of MKP7 with JNK1 did not markedly stimulate the phosphatase activity, which is consistent with previous results that MKP7 solely possesses the intrinsic activity (Supplementary Fig. 2b). RESULTS +24 28 JNK1 protein Incubation of MKP7 with JNK1 did not markedly stimulate the phosphatase activity, which is consistent with previous results that MKP7 solely possesses the intrinsic activity (Supplementary Fig. 2b). RESULTS +60 71 phosphatase protein_type Incubation of MKP7 with JNK1 did not markedly stimulate the phosphatase activity, which is consistent with previous results that MKP7 solely possesses the intrinsic activity (Supplementary Fig. 2b). RESULTS +129 133 MKP7 protein Incubation of MKP7 with JNK1 did not markedly stimulate the phosphatase activity, which is consistent with previous results that MKP7 solely possesses the intrinsic activity (Supplementary Fig. 2b). RESULTS +10 14 pNPP chemical The small pNPP molecule binds directly at the enzyme active site and can be used to probe the reaction mechanism of protein phosphatases. RESULTS +53 64 active site site The small pNPP molecule binds directly at the enzyme active site and can be used to probe the reaction mechanism of protein phosphatases. RESULTS +116 136 protein phosphatases protein_type The small pNPP molecule binds directly at the enzyme active site and can be used to probe the reaction mechanism of protein phosphatases. RESULTS +41 45 MKP7 protein We therefore examined the effects of the MKP7-CD mutants on their pNPPase activities. RESULTS +46 48 CD structure_element We therefore examined the effects of the MKP7-CD mutants on their pNPPase activities. RESULTS +49 56 mutants protein_state We therefore examined the effects of the MKP7-CD mutants on their pNPPase activities. RESULTS +66 73 pNPPase protein_type We therefore examined the effects of the MKP7-CD mutants on their pNPPase activities. RESULTS +29 36 mutants protein_state As shown in Fig. 4f, all the mutants, except F287D/A, showed little or no activity change compared with the wild-type MKP7-CD. RESULTS +45 52 F287D/A mutant As shown in Fig. 4f, all the mutants, except F287D/A, showed little or no activity change compared with the wild-type MKP7-CD. RESULTS +108 117 wild-type protein_state As shown in Fig. 4f, all the mutants, except F287D/A, showed little or no activity change compared with the wild-type MKP7-CD. RESULTS +118 122 MKP7 protein As shown in Fig. 4f, all the mutants, except F287D/A, showed little or no activity change compared with the wild-type MKP7-CD. RESULTS +123 125 CD structure_element As shown in Fig. 4f, all the mutants, except F287D/A, showed little or no activity change compared with the wild-type MKP7-CD. RESULTS +7 19 JNK1/MKP7-CD complex_assembly In the JNK1/MKP7-CD complex structure, Phe287 of MKP7 does not make contacts with JNK1 substrate. RESULTS +28 37 structure evidence In the JNK1/MKP7-CD complex structure, Phe287 of MKP7 does not make contacts with JNK1 substrate. RESULTS +39 45 Phe287 residue_name_number In the JNK1/MKP7-CD complex structure, Phe287 of MKP7 does not make contacts with JNK1 substrate. RESULTS +49 53 MKP7 protein In the JNK1/MKP7-CD complex structure, Phe287 of MKP7 does not make contacts with JNK1 substrate. RESULTS +82 86 JNK1 protein In the JNK1/MKP7-CD complex structure, Phe287 of MKP7 does not make contacts with JNK1 substrate. RESULTS +21 27 pocket site It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +56 62 P-loop structure_element It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +67 84 general acid loop structure_element It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +95 115 hydrophobic contacts bond_interaction It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +162 168 Arg250 residue_name_number It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +170 176 Glu217 residue_name_number It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +181 187 Ile219 residue_name_number It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +205 211 Phe287 residue_name_number It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +215 219 MKP7 protein It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +291 295 PTPs protein_type It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +297 303 Gln266 residue_name_number It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +307 312 PTP1B protein It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +318 321 VHR protein It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +323 329 Phe166 residue_name_number It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +333 336 VHR protein It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +366 386 active-site residues site It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +390 394 MKP7 protein It penetrates into a pocket formed by residues from the P-loop and general acid loop and forms hydrophobic contacts with the aliphatic portions of side chains of Arg250, Glu217 and Ile219, suggesting that Phe287 in MKP7 would play a similar role to that of its structural counterpart in the PTPs (Gln266 in PTP1B) and VHR (Phe166 in VHR) in the precise alignment of active-site residues in MKP7 with respect to the substrate for efficient catalysis (Supplementary Fig. 2c). RESULTS +0 29 Kinase-associated phosphatase protein Kinase-associated phosphatase (KAP), a member of the DUSP family, plays a crucial role in cell cycle regulation by dephosphorylating the pThr160 residue of CDK2 (cyclin-dependent kinase 2). RESULTS +31 34 KAP protein Kinase-associated phosphatase (KAP), a member of the DUSP family, plays a crucial role in cell cycle regulation by dephosphorylating the pThr160 residue of CDK2 (cyclin-dependent kinase 2). RESULTS +53 64 DUSP family protein_type Kinase-associated phosphatase (KAP), a member of the DUSP family, plays a crucial role in cell cycle regulation by dephosphorylating the pThr160 residue of CDK2 (cyclin-dependent kinase 2). RESULTS +137 144 pThr160 ptm Kinase-associated phosphatase (KAP), a member of the DUSP family, plays a crucial role in cell cycle regulation by dephosphorylating the pThr160 residue of CDK2 (cyclin-dependent kinase 2). RESULTS +156 160 CDK2 protein Kinase-associated phosphatase (KAP), a member of the DUSP family, plays a crucial role in cell cycle regulation by dephosphorylating the pThr160 residue of CDK2 (cyclin-dependent kinase 2). RESULTS +162 187 cyclin-dependent kinase 2 protein Kinase-associated phosphatase (KAP), a member of the DUSP family, plays a crucial role in cell cycle regulation by dephosphorylating the pThr160 residue of CDK2 (cyclin-dependent kinase 2). RESULTS +4 21 crystal structure evidence The crystal structure of the CDK2/KAP complex has been determined at 3.0 Å (Fig. 5a). RESULTS +29 37 CDK2/KAP complex_assembly The crystal structure of the CDK2/KAP complex has been determined at 3.0 Å (Fig. 5a). RESULTS +4 13 interface site The interface between these two proteins consists of three discontinuous contact regions. RESULTS +72 75 KAP protein Biochemical results suggested that the affinity and specificity between KAP and CDK2 results from the recognition site comprising CDK2 residues from the αG helix and L14 loop and the N-terminal helical region of KAP (Fig. 5b). RESULTS +80 84 CDK2 protein Biochemical results suggested that the affinity and specificity between KAP and CDK2 results from the recognition site comprising CDK2 residues from the αG helix and L14 loop and the N-terminal helical region of KAP (Fig. 5b). RESULTS +102 118 recognition site site Biochemical results suggested that the affinity and specificity between KAP and CDK2 results from the recognition site comprising CDK2 residues from the αG helix and L14 loop and the N-terminal helical region of KAP (Fig. 5b). RESULTS +130 134 CDK2 protein Biochemical results suggested that the affinity and specificity between KAP and CDK2 results from the recognition site comprising CDK2 residues from the αG helix and L14 loop and the N-terminal helical region of KAP (Fig. 5b). RESULTS +153 161 αG helix structure_element Biochemical results suggested that the affinity and specificity between KAP and CDK2 results from the recognition site comprising CDK2 residues from the αG helix and L14 loop and the N-terminal helical region of KAP (Fig. 5b). RESULTS +166 174 L14 loop structure_element Biochemical results suggested that the affinity and specificity between KAP and CDK2 results from the recognition site comprising CDK2 residues from the αG helix and L14 loop and the N-terminal helical region of KAP (Fig. 5b). RESULTS +183 208 N-terminal helical region structure_element Biochemical results suggested that the affinity and specificity between KAP and CDK2 results from the recognition site comprising CDK2 residues from the αG helix and L14 loop and the N-terminal helical region of KAP (Fig. 5b). RESULTS +212 215 KAP protein Biochemical results suggested that the affinity and specificity between KAP and CDK2 results from the recognition site comprising CDK2 residues from the αG helix and L14 loop and the N-terminal helical region of KAP (Fig. 5b). RESULTS +11 24 hydrogen bond bond_interaction There is a hydrogen bond between the main-chain nitrogen of Ile183 (KAP) and side chain oxygen of Glu208 (CDK2), and salt bridges between Lys184 of KAP and Asp235 of CDK2. RESULTS +60 66 Ile183 residue_name_number There is a hydrogen bond between the main-chain nitrogen of Ile183 (KAP) and side chain oxygen of Glu208 (CDK2), and salt bridges between Lys184 of KAP and Asp235 of CDK2. RESULTS +68 71 KAP protein There is a hydrogen bond between the main-chain nitrogen of Ile183 (KAP) and side chain oxygen of Glu208 (CDK2), and salt bridges between Lys184 of KAP and Asp235 of CDK2. RESULTS +98 104 Glu208 residue_name_number There is a hydrogen bond between the main-chain nitrogen of Ile183 (KAP) and side chain oxygen of Glu208 (CDK2), and salt bridges between Lys184 of KAP and Asp235 of CDK2. RESULTS +106 110 CDK2 protein There is a hydrogen bond between the main-chain nitrogen of Ile183 (KAP) and side chain oxygen of Glu208 (CDK2), and salt bridges between Lys184 of KAP and Asp235 of CDK2. RESULTS +138 144 Lys184 residue_name_number There is a hydrogen bond between the main-chain nitrogen of Ile183 (KAP) and side chain oxygen of Glu208 (CDK2), and salt bridges between Lys184 of KAP and Asp235 of CDK2. RESULTS +148 151 KAP protein There is a hydrogen bond between the main-chain nitrogen of Ile183 (KAP) and side chain oxygen of Glu208 (CDK2), and salt bridges between Lys184 of KAP and Asp235 of CDK2. RESULTS +156 162 Asp235 residue_name_number There is a hydrogen bond between the main-chain nitrogen of Ile183 (KAP) and side chain oxygen of Glu208 (CDK2), and salt bridges between Lys184 of KAP and Asp235 of CDK2. RESULTS +166 170 CDK2 protein There is a hydrogen bond between the main-chain nitrogen of Ile183 (KAP) and side chain oxygen of Glu208 (CDK2), and salt bridges between Lys184 of KAP and Asp235 of CDK2. RESULTS +0 19 Structural analysis experimental_method Structural analysis and sequence alignment reveal that one of the few differences between MKP7-CD and KAP in the substrate-binding region is the presence of the motif FNFL in MKP7-CD, which corresponds to IKQY in KAP (Fig. 5c). RESULTS +24 42 sequence alignment experimental_method Structural analysis and sequence alignment reveal that one of the few differences between MKP7-CD and KAP in the substrate-binding region is the presence of the motif FNFL in MKP7-CD, which corresponds to IKQY in KAP (Fig. 5c). RESULTS +90 94 MKP7 protein Structural analysis and sequence alignment reveal that one of the few differences between MKP7-CD and KAP in the substrate-binding region is the presence of the motif FNFL in MKP7-CD, which corresponds to IKQY in KAP (Fig. 5c). RESULTS +95 97 CD structure_element Structural analysis and sequence alignment reveal that one of the few differences between MKP7-CD and KAP in the substrate-binding region is the presence of the motif FNFL in MKP7-CD, which corresponds to IKQY in KAP (Fig. 5c). RESULTS +102 105 KAP protein Structural analysis and sequence alignment reveal that one of the few differences between MKP7-CD and KAP in the substrate-binding region is the presence of the motif FNFL in MKP7-CD, which corresponds to IKQY in KAP (Fig. 5c). RESULTS +113 137 substrate-binding region site Structural analysis and sequence alignment reveal that one of the few differences between MKP7-CD and KAP in the substrate-binding region is the presence of the motif FNFL in MKP7-CD, which corresponds to IKQY in KAP (Fig. 5c). RESULTS +167 171 FNFL structure_element Structural analysis and sequence alignment reveal that one of the few differences between MKP7-CD and KAP in the substrate-binding region is the presence of the motif FNFL in MKP7-CD, which corresponds to IKQY in KAP (Fig. 5c). RESULTS +175 179 MKP7 protein Structural analysis and sequence alignment reveal that one of the few differences between MKP7-CD and KAP in the substrate-binding region is the presence of the motif FNFL in MKP7-CD, which corresponds to IKQY in KAP (Fig. 5c). RESULTS +180 182 CD structure_element Structural analysis and sequence alignment reveal that one of the few differences between MKP7-CD and KAP in the substrate-binding region is the presence of the motif FNFL in MKP7-CD, which corresponds to IKQY in KAP (Fig. 5c). RESULTS +205 209 IKQY structure_element Structural analysis and sequence alignment reveal that one of the few differences between MKP7-CD and KAP in the substrate-binding region is the presence of the motif FNFL in MKP7-CD, which corresponds to IKQY in KAP (Fig. 5c). RESULTS +213 216 KAP protein Structural analysis and sequence alignment reveal that one of the few differences between MKP7-CD and KAP in the substrate-binding region is the presence of the motif FNFL in MKP7-CD, which corresponds to IKQY in KAP (Fig. 5c). RESULTS +4 16 substitution experimental_method The substitution of the two hydrophobic residues with charged/polar residues (F285I/N286K) seriously disrupts the hydrophobic interaction required for MKP7 binding on JNK1 (Fig. 4a). RESULTS +78 83 F285I mutant The substitution of the two hydrophobic residues with charged/polar residues (F285I/N286K) seriously disrupts the hydrophobic interaction required for MKP7 binding on JNK1 (Fig. 4a). RESULTS +84 89 N286K mutant The substitution of the two hydrophobic residues with charged/polar residues (F285I/N286K) seriously disrupts the hydrophobic interaction required for MKP7 binding on JNK1 (Fig. 4a). RESULTS +114 137 hydrophobic interaction bond_interaction The substitution of the two hydrophobic residues with charged/polar residues (F285I/N286K) seriously disrupts the hydrophobic interaction required for MKP7 binding on JNK1 (Fig. 4a). RESULTS +151 155 MKP7 protein The substitution of the two hydrophobic residues with charged/polar residues (F285I/N286K) seriously disrupts the hydrophobic interaction required for MKP7 binding on JNK1 (Fig. 4a). RESULTS +167 171 JNK1 protein The substitution of the two hydrophobic residues with charged/polar residues (F285I/N286K) seriously disrupts the hydrophobic interaction required for MKP7 binding on JNK1 (Fig. 4a). RESULTS +13 19 His230 residue_name_number In addition, His230 and Val256 in JNK1 are replaced by the negatively charged residues Glu208 and Asp235 in CDK2 (Fig. 5d), and the charge distribution on the CDK2 interactive surface is quite different from that of JNK. RESULTS +24 30 Val256 residue_name_number In addition, His230 and Val256 in JNK1 are replaced by the negatively charged residues Glu208 and Asp235 in CDK2 (Fig. 5d), and the charge distribution on the CDK2 interactive surface is quite different from that of JNK. RESULTS +34 38 JNK1 protein In addition, His230 and Val256 in JNK1 are replaced by the negatively charged residues Glu208 and Asp235 in CDK2 (Fig. 5d), and the charge distribution on the CDK2 interactive surface is quite different from that of JNK. RESULTS +87 93 Glu208 residue_name_number In addition, His230 and Val256 in JNK1 are replaced by the negatively charged residues Glu208 and Asp235 in CDK2 (Fig. 5d), and the charge distribution on the CDK2 interactive surface is quite different from that of JNK. RESULTS +98 104 Asp235 residue_name_number In addition, His230 and Val256 in JNK1 are replaced by the negatively charged residues Glu208 and Asp235 in CDK2 (Fig. 5d), and the charge distribution on the CDK2 interactive surface is quite different from that of JNK. RESULTS +108 112 CDK2 protein In addition, His230 and Val256 in JNK1 are replaced by the negatively charged residues Glu208 and Asp235 in CDK2 (Fig. 5d), and the charge distribution on the CDK2 interactive surface is quite different from that of JNK. RESULTS +159 163 CDK2 protein In addition, His230 and Val256 in JNK1 are replaced by the negatively charged residues Glu208 and Asp235 in CDK2 (Fig. 5d), and the charge distribution on the CDK2 interactive surface is quite different from that of JNK. RESULTS +164 183 interactive surface site In addition, His230 and Val256 in JNK1 are replaced by the negatively charged residues Glu208 and Asp235 in CDK2 (Fig. 5d), and the charge distribution on the CDK2 interactive surface is quite different from that of JNK. RESULTS +216 219 JNK protein_type In addition, His230 and Val256 in JNK1 are replaced by the negatively charged residues Glu208 and Asp235 in CDK2 (Fig. 5d), and the charge distribution on the CDK2 interactive surface is quite different from that of JNK. RESULTS +35 53 hydrophobic pocket site These data indicated that a unique hydrophobic pocket formed between the MAPK insert and αG helix plays a major role in the substrate recognition by MKPs. RESULTS +73 84 MAPK insert structure_element These data indicated that a unique hydrophobic pocket formed between the MAPK insert and αG helix plays a major role in the substrate recognition by MKPs. RESULTS +89 97 αG helix structure_element These data indicated that a unique hydrophobic pocket formed between the MAPK insert and αG helix plays a major role in the substrate recognition by MKPs. RESULTS +149 153 MKPs protein_type These data indicated that a unique hydrophobic pocket formed between the MAPK insert and αG helix plays a major role in the substrate recognition by MKPs. RESULTS +0 6 F-site site F-site interaction is crucial for JNK1 inactivation in vivo RESULTS +34 38 JNK1 protein F-site interaction is crucial for JNK1 inactivation in vivo RESULTS +0 3 JNK protein_type JNK is activated following cellular exposure to a number of acute stimuli such as anisomycin, H2O2, ultraviolet light, sorbitol, DNA-damaging agents and several strong apoptosis inducers (etoposide, cisplatin and taxol). RESULTS +82 92 anisomycin chemical JNK is activated following cellular exposure to a number of acute stimuli such as anisomycin, H2O2, ultraviolet light, sorbitol, DNA-damaging agents and several strong apoptosis inducers (etoposide, cisplatin and taxol). RESULTS +94 98 H2O2 chemical JNK is activated following cellular exposure to a number of acute stimuli such as anisomycin, H2O2, ultraviolet light, sorbitol, DNA-damaging agents and several strong apoptosis inducers (etoposide, cisplatin and taxol). RESULTS +119 127 sorbitol chemical JNK is activated following cellular exposure to a number of acute stimuli such as anisomycin, H2O2, ultraviolet light, sorbitol, DNA-damaging agents and several strong apoptosis inducers (etoposide, cisplatin and taxol). RESULTS +188 197 etoposide chemical JNK is activated following cellular exposure to a number of acute stimuli such as anisomycin, H2O2, ultraviolet light, sorbitol, DNA-damaging agents and several strong apoptosis inducers (etoposide, cisplatin and taxol). RESULTS +199 208 cisplatin chemical JNK is activated following cellular exposure to a number of acute stimuli such as anisomycin, H2O2, ultraviolet light, sorbitol, DNA-damaging agents and several strong apoptosis inducers (etoposide, cisplatin and taxol). RESULTS +213 218 taxol chemical JNK is activated following cellular exposure to a number of acute stimuli such as anisomycin, H2O2, ultraviolet light, sorbitol, DNA-damaging agents and several strong apoptosis inducers (etoposide, cisplatin and taxol). RESULTS +25 29 MKP7 protein To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +38 45 mutants protein_state To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +78 81 JNK protein_type To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +148 157 HA-tagged protein_state To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +173 184 full-length protein_state To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +185 189 MKP7 protein To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +191 200 MKP7ΔC304 mutant To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +205 209 MKP7 protein To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +210 212 CD structure_element To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +216 220 MKP7 protein To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +221 228 mutants protein_state To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +265 274 etoposide chemical To assess the effects of MKP7 and its mutants on the activation of endogenous JNK in vivo, HEK293T cells were transfected with blank vector or with HA-tagged constructs for full-length MKP7, MKP7ΔC304 and MKP7-CD or MKP7 mutants, and stimulated with ultraviolet or etoposide treatment. RESULTS +23 36 immunobloting experimental_method As shown in Fig. 6a–c, immunobloting showed similar expression levels for the different MKP7 constructs in all the cells. RESULTS +88 92 MKP7 protein As shown in Fig. 6a–c, immunobloting showed similar expression levels for the different MKP7 constructs in all the cells. RESULTS +0 13 Overexpressed experimental_method Overexpressed full-length MKP7, MKP7ΔC304 and MKP7-CD significantly reduced the endogenous level of phosphorylated JNK compared with vector-transfected cells. RESULTS +14 25 full-length protein_state Overexpressed full-length MKP7, MKP7ΔC304 and MKP7-CD significantly reduced the endogenous level of phosphorylated JNK compared with vector-transfected cells. RESULTS +26 30 MKP7 protein Overexpressed full-length MKP7, MKP7ΔC304 and MKP7-CD significantly reduced the endogenous level of phosphorylated JNK compared with vector-transfected cells. RESULTS +32 41 MKP7ΔC304 mutant Overexpressed full-length MKP7, MKP7ΔC304 and MKP7-CD significantly reduced the endogenous level of phosphorylated JNK compared with vector-transfected cells. RESULTS +46 50 MKP7 protein Overexpressed full-length MKP7, MKP7ΔC304 and MKP7-CD significantly reduced the endogenous level of phosphorylated JNK compared with vector-transfected cells. RESULTS +51 53 CD structure_element Overexpressed full-length MKP7, MKP7ΔC304 and MKP7-CD significantly reduced the endogenous level of phosphorylated JNK compared with vector-transfected cells. RESULTS +100 114 phosphorylated protein_state Overexpressed full-length MKP7, MKP7ΔC304 and MKP7-CD significantly reduced the endogenous level of phosphorylated JNK compared with vector-transfected cells. RESULTS +115 118 JNK protein_type Overexpressed full-length MKP7, MKP7ΔC304 and MKP7-CD significantly reduced the endogenous level of phosphorylated JNK compared with vector-transfected cells. RESULTS +45 52 D-motif structure_element Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +53 60 mutants protein_state Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +62 66 R56A mutant Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +67 71 R57A mutant Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +76 80 V63A mutant Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +81 85 I65A mutant Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +87 103 dephosphorylated protein_state Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +104 107 JNK protein_type Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +119 128 wild type protein_state Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +184 188 MKP7 protein Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +189 192 KBD structure_element Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +217 220 JNK protein_type Parallel experiments showed clearly that the D-motif mutants (R56A/R57A and V63A/I65A) dephosphorylated JNK as did the wild type under the same conditions, further confirming that the MKP7-KBD is not required for the JNK inactivation in vivo. RESULTS +48 62 phosphorylated protein_state Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +63 66 JNK protein_type Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +96 100 MKP7 protein Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +101 110 FXF-motif structure_element Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +111 118 mutants protein_state Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +120 125 F285D mutant Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +127 132 F287D mutant Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +137 142 L288D mutant Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +171 175 MKP7 protein Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +176 181 D268A mutant Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +186 191 N286A mutant Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +192 199 mutants protein_state Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +261 264 JNK protein_type Consistent with the in vitro data, the level of phosphorylated JNK was not or little altered in MKP7 FXF-motif mutants (F285D, F287D and L288D)-transfected cells, and the MKP7 D268A and N286A mutants retained the ability to reduce the phosphorylation levels of JNK. RESULTS +44 48 JNK1 protein We next tested in vivo interactions between JNK1 mutants and full-length MKP7 by coimmunoprecipitation experiments under unstimulated conditions. RESULTS +49 56 mutants protein_state We next tested in vivo interactions between JNK1 mutants and full-length MKP7 by coimmunoprecipitation experiments under unstimulated conditions. RESULTS +61 72 full-length protein_state We next tested in vivo interactions between JNK1 mutants and full-length MKP7 by coimmunoprecipitation experiments under unstimulated conditions. RESULTS +73 77 MKP7 protein We next tested in vivo interactions between JNK1 mutants and full-length MKP7 by coimmunoprecipitation experiments under unstimulated conditions. RESULTS +81 114 coimmunoprecipitation experiments experimental_method We next tested in vivo interactions between JNK1 mutants and full-length MKP7 by coimmunoprecipitation experiments under unstimulated conditions. RESULTS +5 17 co-expressed experimental_method When co-expressed in HEK293T cells, wild-type (HA)-JNK1 was readily precipitated with (Myc)-MKP7 (Fig. 6d), indicating that MKP7 binds dephosphorylated JNK1 protein in vivo. RESULTS +36 45 wild-type protein_state When co-expressed in HEK293T cells, wild-type (HA)-JNK1 was readily precipitated with (Myc)-MKP7 (Fig. 6d), indicating that MKP7 binds dephosphorylated JNK1 protein in vivo. RESULTS +51 55 JNK1 protein When co-expressed in HEK293T cells, wild-type (HA)-JNK1 was readily precipitated with (Myc)-MKP7 (Fig. 6d), indicating that MKP7 binds dephosphorylated JNK1 protein in vivo. RESULTS +92 96 MKP7 protein When co-expressed in HEK293T cells, wild-type (HA)-JNK1 was readily precipitated with (Myc)-MKP7 (Fig. 6d), indicating that MKP7 binds dephosphorylated JNK1 protein in vivo. RESULTS +124 128 MKP7 protein When co-expressed in HEK293T cells, wild-type (HA)-JNK1 was readily precipitated with (Myc)-MKP7 (Fig. 6d), indicating that MKP7 binds dephosphorylated JNK1 protein in vivo. RESULTS +135 151 dephosphorylated protein_state When co-expressed in HEK293T cells, wild-type (HA)-JNK1 was readily precipitated with (Myc)-MKP7 (Fig. 6d), indicating that MKP7 binds dephosphorylated JNK1 protein in vivo. RESULTS +152 156 JNK1 protein When co-expressed in HEK293T cells, wild-type (HA)-JNK1 was readily precipitated with (Myc)-MKP7 (Fig. 6d), indicating that MKP7 binds dephosphorylated JNK1 protein in vivo. RESULTS +22 40 in vitro pull-down experimental_method In agreement with the in vitro pull-down results, the mutants D229A, W234D and Y259D were not co-precipitated with MKP7, and the I231D mutant had only little effect on the JNK1–MKP7 interaction (Fig. 6d and Supplementary Fig. 3a). RESULTS +54 61 mutants protein_state In agreement with the in vitro pull-down results, the mutants D229A, W234D and Y259D were not co-precipitated with MKP7, and the I231D mutant had only little effect on the JNK1–MKP7 interaction (Fig. 6d and Supplementary Fig. 3a). RESULTS +62 67 D229A mutant In agreement with the in vitro pull-down results, the mutants D229A, W234D and Y259D were not co-precipitated with MKP7, and the I231D mutant had only little effect on the JNK1–MKP7 interaction (Fig. 6d and Supplementary Fig. 3a). RESULTS +69 74 W234D mutant In agreement with the in vitro pull-down results, the mutants D229A, W234D and Y259D were not co-precipitated with MKP7, and the I231D mutant had only little effect on the JNK1–MKP7 interaction (Fig. 6d and Supplementary Fig. 3a). RESULTS +79 84 Y259D mutant In agreement with the in vitro pull-down results, the mutants D229A, W234D and Y259D were not co-precipitated with MKP7, and the I231D mutant had only little effect on the JNK1–MKP7 interaction (Fig. 6d and Supplementary Fig. 3a). RESULTS +115 119 MKP7 protein In agreement with the in vitro pull-down results, the mutants D229A, W234D and Y259D were not co-precipitated with MKP7, and the I231D mutant had only little effect on the JNK1–MKP7 interaction (Fig. 6d and Supplementary Fig. 3a). RESULTS +129 134 I231D mutant In agreement with the in vitro pull-down results, the mutants D229A, W234D and Y259D were not co-precipitated with MKP7, and the I231D mutant had only little effect on the JNK1–MKP7 interaction (Fig. 6d and Supplementary Fig. 3a). RESULTS +135 141 mutant protein_state In agreement with the in vitro pull-down results, the mutants D229A, W234D and Y259D were not co-precipitated with MKP7, and the I231D mutant had only little effect on the JNK1–MKP7 interaction (Fig. 6d and Supplementary Fig. 3a). RESULTS +172 181 JNK1–MKP7 complex_assembly In agreement with the in vitro pull-down results, the mutants D229A, W234D and Y259D were not co-precipitated with MKP7, and the I231D mutant had only little effect on the JNK1–MKP7 interaction (Fig. 6d and Supplementary Fig. 3a). RESULTS +18 21 JNK protein_type Activation of the JNK signalling pathway is frequently associated with apoptotic cell death, and inhibition of JNK can prevent apoptotic death of multiple cells. RESULTS +111 114 JNK protein_type Activation of the JNK signalling pathway is frequently associated with apoptotic cell death, and inhibition of JNK can prevent apoptotic death of multiple cells. RESULTS +37 40 JNK protein_type To examine whether the inhibition of JNK activity by MKP7 would provide protections against the apoptosis, we analysed the rate of apoptosis in ultraviolet-irradiated cells transfected with MKP7 (wild type or mutants) by flow cytometry. RESULTS +53 57 MKP7 protein To examine whether the inhibition of JNK activity by MKP7 would provide protections against the apoptosis, we analysed the rate of apoptosis in ultraviolet-irradiated cells transfected with MKP7 (wild type or mutants) by flow cytometry. RESULTS +190 194 MKP7 protein To examine whether the inhibition of JNK activity by MKP7 would provide protections against the apoptosis, we analysed the rate of apoptosis in ultraviolet-irradiated cells transfected with MKP7 (wild type or mutants) by flow cytometry. RESULTS +196 205 wild type protein_state To examine whether the inhibition of JNK activity by MKP7 would provide protections against the apoptosis, we analysed the rate of apoptosis in ultraviolet-irradiated cells transfected with MKP7 (wild type or mutants) by flow cytometry. RESULTS +209 216 mutants protein_state To examine whether the inhibition of JNK activity by MKP7 would provide protections against the apoptosis, we analysed the rate of apoptosis in ultraviolet-irradiated cells transfected with MKP7 (wild type or mutants) by flow cytometry. RESULTS +221 235 flow cytometry experimental_method To examine whether the inhibition of JNK activity by MKP7 would provide protections against the apoptosis, we analysed the rate of apoptosis in ultraviolet-irradiated cells transfected with MKP7 (wild type or mutants) by flow cytometry. RESULTS +95 99 MKP7 protein The results showed similar apoptotic rates between cells transfected with blank vector or with MKP7 (wild type or mutants) under unstimulated conditions (Supplementary Fig. 3b), while ultraviolet-irradiation significantly increased apoptotic rate in cells transfected with blank vector (Fig. 6e). RESULTS +101 110 wild type protein_state The results showed similar apoptotic rates between cells transfected with blank vector or with MKP7 (wild type or mutants) under unstimulated conditions (Supplementary Fig. 3b), while ultraviolet-irradiation significantly increased apoptotic rate in cells transfected with blank vector (Fig. 6e). RESULTS +114 121 mutants protein_state The results showed similar apoptotic rates between cells transfected with blank vector or with MKP7 (wild type or mutants) under unstimulated conditions (Supplementary Fig. 3b), while ultraviolet-irradiation significantly increased apoptotic rate in cells transfected with blank vector (Fig. 6e). RESULTS +0 11 Expressions experimental_method Expressions of wild-type MKP7, MKP7ΔC304 and MKP7-CD significantly decreased the proportion of apoptotic cells after ultraviolet treatment. RESULTS +15 24 wild-type protein_state Expressions of wild-type MKP7, MKP7ΔC304 and MKP7-CD significantly decreased the proportion of apoptotic cells after ultraviolet treatment. RESULTS +25 29 MKP7 protein Expressions of wild-type MKP7, MKP7ΔC304 and MKP7-CD significantly decreased the proportion of apoptotic cells after ultraviolet treatment. RESULTS +31 40 MKP7ΔC304 mutant Expressions of wild-type MKP7, MKP7ΔC304 and MKP7-CD significantly decreased the proportion of apoptotic cells after ultraviolet treatment. RESULTS +45 49 MKP7 protein Expressions of wild-type MKP7, MKP7ΔC304 and MKP7-CD significantly decreased the proportion of apoptotic cells after ultraviolet treatment. RESULTS +50 52 CD structure_element Expressions of wild-type MKP7, MKP7ΔC304 and MKP7-CD significantly decreased the proportion of apoptotic cells after ultraviolet treatment. RESULTS +40 44 MKP7 protein Moreover, treatment of cells expressing MKP7-KBD mutants (R56A/R57A and V63A/I65A) decreased the apoptosis rates to a similar extent as MKP7 wild type did. RESULTS +45 48 KBD structure_element Moreover, treatment of cells expressing MKP7-KBD mutants (R56A/R57A and V63A/I65A) decreased the apoptosis rates to a similar extent as MKP7 wild type did. RESULTS +49 56 mutants protein_state Moreover, treatment of cells expressing MKP7-KBD mutants (R56A/R57A and V63A/I65A) decreased the apoptosis rates to a similar extent as MKP7 wild type did. RESULTS +58 62 R56A mutant Moreover, treatment of cells expressing MKP7-KBD mutants (R56A/R57A and V63A/I65A) decreased the apoptosis rates to a similar extent as MKP7 wild type did. RESULTS +63 67 R57A mutant Moreover, treatment of cells expressing MKP7-KBD mutants (R56A/R57A and V63A/I65A) decreased the apoptosis rates to a similar extent as MKP7 wild type did. RESULTS +72 76 V63A mutant Moreover, treatment of cells expressing MKP7-KBD mutants (R56A/R57A and V63A/I65A) decreased the apoptosis rates to a similar extent as MKP7 wild type did. RESULTS +77 81 I65A mutant Moreover, treatment of cells expressing MKP7-KBD mutants (R56A/R57A and V63A/I65A) decreased the apoptosis rates to a similar extent as MKP7 wild type did. RESULTS +136 140 MKP7 protein Moreover, treatment of cells expressing MKP7-KBD mutants (R56A/R57A and V63A/I65A) decreased the apoptosis rates to a similar extent as MKP7 wild type did. RESULTS +141 150 wild type protein_state Moreover, treatment of cells expressing MKP7-KBD mutants (R56A/R57A and V63A/I65A) decreased the apoptosis rates to a similar extent as MKP7 wild type did. RESULTS +40 44 MKP7 protein In contrast, cells transfected with the MKP7 FXF-motif mutants (F285D, F287D and L288D) showed little protective effect after ultraviolet treatment and similar levels of apoptosis rates were detected to cells transfected with control vectors (Fig. 6e,f). RESULTS +45 54 FXF-motif structure_element In contrast, cells transfected with the MKP7 FXF-motif mutants (F285D, F287D and L288D) showed little protective effect after ultraviolet treatment and similar levels of apoptosis rates were detected to cells transfected with control vectors (Fig. 6e,f). RESULTS +55 62 mutants protein_state In contrast, cells transfected with the MKP7 FXF-motif mutants (F285D, F287D and L288D) showed little protective effect after ultraviolet treatment and similar levels of apoptosis rates were detected to cells transfected with control vectors (Fig. 6e,f). RESULTS +64 69 F285D mutant In contrast, cells transfected with the MKP7 FXF-motif mutants (F285D, F287D and L288D) showed little protective effect after ultraviolet treatment and similar levels of apoptosis rates were detected to cells transfected with control vectors (Fig. 6e,f). RESULTS +71 76 F287D mutant In contrast, cells transfected with the MKP7 FXF-motif mutants (F285D, F287D and L288D) showed little protective effect after ultraviolet treatment and similar levels of apoptosis rates were detected to cells transfected with control vectors (Fig. 6e,f). RESULTS +81 86 L288D mutant In contrast, cells transfected with the MKP7 FXF-motif mutants (F285D, F287D and L288D) showed little protective effect after ultraviolet treatment and similar levels of apoptosis rates were detected to cells transfected with control vectors (Fig. 6e,f). RESULTS +43 52 FXF-motif structure_element Taken together, our results suggested that FXF-motif-mediated, rather than KBD-mediated, interaction is essential for MKP7 to block ultraviolet-induced apoptosis. RESULTS +75 78 KBD structure_element Taken together, our results suggested that FXF-motif-mediated, rather than KBD-mediated, interaction is essential for MKP7 to block ultraviolet-induced apoptosis. RESULTS +118 122 MKP7 protein Taken together, our results suggested that FXF-motif-mediated, rather than KBD-mediated, interaction is essential for MKP7 to block ultraviolet-induced apoptosis. RESULTS +32 36 JNK1 protein A similar docking mechanism for JNK1 recognition by MKP5 RESULTS +52 56 MKP5 protein A similar docking mechanism for JNK1 recognition by MKP5 RESULTS +0 4 MKP5 protein MKP5 belongs to the same subfamily as MKP7. RESULTS +38 42 MKP7 protein MKP5 belongs to the same subfamily as MKP7. RESULTS +0 4 MKP5 protein MKP5 is unique among the MKPs in possessing an additional domain of unknown function at the N-terminus (Fig. 7a). RESULTS +25 29 MKPs protein_type MKP5 is unique among the MKPs in possessing an additional domain of unknown function at the N-terminus (Fig. 7a). RESULTS +4 7 KBD structure_element The KBD of MKP5 interacts with the D-site of p38α to mediate the enzyme–substrate interaction. RESULTS +11 15 MKP5 protein The KBD of MKP5 interacts with the D-site of p38α to mediate the enzyme–substrate interaction. RESULTS +35 41 D-site site The KBD of MKP5 interacts with the D-site of p38α to mediate the enzyme–substrate interaction. RESULTS +45 49 p38α protein The KBD of MKP5 interacts with the D-site of p38α to mediate the enzyme–substrate interaction. RESULTS +0 11 Deletion of experimental_method Deletion of the KBD in MKP5 leads to a 280-fold increase in Km for p38α substrate. RESULTS +16 19 KBD structure_element Deletion of the KBD in MKP5 leads to a 280-fold increase in Km for p38α substrate. RESULTS +23 27 MKP5 protein Deletion of the KBD in MKP5 leads to a 280-fold increase in Km for p38α substrate. RESULTS +60 62 Km evidence Deletion of the KBD in MKP5 leads to a 280-fold increase in Km for p38α substrate. RESULTS +67 71 p38α protein Deletion of the KBD in MKP5 leads to a 280-fold increase in Km for p38α substrate. RESULTS +15 19 p38α protein In contrast to p38α substrate, deletion of the MKP5-KBD had little effects on the kinetic parameters for the JNK1 dephosphorylation, indicating that the KBD of MKP5 is not required for the JNK1 dephosphorylation (Fig. 7b). RESULTS +31 42 deletion of experimental_method In contrast to p38α substrate, deletion of the MKP5-KBD had little effects on the kinetic parameters for the JNK1 dephosphorylation, indicating that the KBD of MKP5 is not required for the JNK1 dephosphorylation (Fig. 7b). RESULTS +47 51 MKP5 protein In contrast to p38α substrate, deletion of the MKP5-KBD had little effects on the kinetic parameters for the JNK1 dephosphorylation, indicating that the KBD of MKP5 is not required for the JNK1 dephosphorylation (Fig. 7b). RESULTS +52 55 KBD structure_element In contrast to p38α substrate, deletion of the MKP5-KBD had little effects on the kinetic parameters for the JNK1 dephosphorylation, indicating that the KBD of MKP5 is not required for the JNK1 dephosphorylation (Fig. 7b). RESULTS +109 113 JNK1 protein In contrast to p38α substrate, deletion of the MKP5-KBD had little effects on the kinetic parameters for the JNK1 dephosphorylation, indicating that the KBD of MKP5 is not required for the JNK1 dephosphorylation (Fig. 7b). RESULTS +153 156 KBD structure_element In contrast to p38α substrate, deletion of the MKP5-KBD had little effects on the kinetic parameters for the JNK1 dephosphorylation, indicating that the KBD of MKP5 is not required for the JNK1 dephosphorylation (Fig. 7b). RESULTS +160 164 MKP5 protein In contrast to p38α substrate, deletion of the MKP5-KBD had little effects on the kinetic parameters for the JNK1 dephosphorylation, indicating that the KBD of MKP5 is not required for the JNK1 dephosphorylation (Fig. 7b). RESULTS +189 193 JNK1 protein In contrast to p38α substrate, deletion of the MKP5-KBD had little effects on the kinetic parameters for the JNK1 dephosphorylation, indicating that the KBD of MKP5 is not required for the JNK1 dephosphorylation (Fig. 7b). RESULTS +4 34 substrate specificity constant evidence The substrate specificity constant kcat /Km value for MKP5-CD was calculated as 1.0 × 105 M−1 s−1, which is very close to that of MKP7-CD (1.07 × 105 M−1 s−1). RESULTS +35 43 kcat /Km evidence The substrate specificity constant kcat /Km value for MKP5-CD was calculated as 1.0 × 105 M−1 s−1, which is very close to that of MKP7-CD (1.07 × 105 M−1 s−1). RESULTS +54 58 MKP5 protein The substrate specificity constant kcat /Km value for MKP5-CD was calculated as 1.0 × 105 M−1 s−1, which is very close to that of MKP7-CD (1.07 × 105 M−1 s−1). RESULTS +59 61 CD structure_element The substrate specificity constant kcat /Km value for MKP5-CD was calculated as 1.0 × 105 M−1 s−1, which is very close to that of MKP7-CD (1.07 × 105 M−1 s−1). RESULTS +130 134 MKP7 protein The substrate specificity constant kcat /Km value for MKP5-CD was calculated as 1.0 × 105 M−1 s−1, which is very close to that of MKP7-CD (1.07 × 105 M−1 s−1). RESULTS +135 137 CD structure_element The substrate specificity constant kcat /Km value for MKP5-CD was calculated as 1.0 × 105 M−1 s−1, which is very close to that of MKP7-CD (1.07 × 105 M−1 s−1). RESULTS +4 21 crystal structure evidence The crystal structure of human MKP5-CD has been determined. RESULTS +25 30 human species The crystal structure of human MKP5-CD has been determined. RESULTS +31 35 MKP5 protein The crystal structure of human MKP5-CD has been determined. RESULTS +36 38 CD structure_element The crystal structure of human MKP5-CD has been determined. RESULTS +20 37 catalytic domains structure_element Comparisons between catalytic domains structures of MKP5 and MKP7 reveal that the overall folds of the two proteins are highly similar, with only a few regions exhibiting small deviations (r.m.s.d. of 0.79 Å; Fig. 7c). RESULTS +38 48 structures evidence Comparisons between catalytic domains structures of MKP5 and MKP7 reveal that the overall folds of the two proteins are highly similar, with only a few regions exhibiting small deviations (r.m.s.d. of 0.79 Å; Fig. 7c). RESULTS +52 56 MKP5 protein Comparisons between catalytic domains structures of MKP5 and MKP7 reveal that the overall folds of the two proteins are highly similar, with only a few regions exhibiting small deviations (r.m.s.d. of 0.79 Å; Fig. 7c). RESULTS +61 65 MKP7 protein Comparisons between catalytic domains structures of MKP5 and MKP7 reveal that the overall folds of the two proteins are highly similar, with only a few regions exhibiting small deviations (r.m.s.d. of 0.79 Å; Fig. 7c). RESULTS +189 197 r.m.s.d. evidence Comparisons between catalytic domains structures of MKP5 and MKP7 reveal that the overall folds of the two proteins are highly similar, with only a few regions exhibiting small deviations (r.m.s.d. of 0.79 Å; Fig. 7c). RESULTS +52 69 crystal structure evidence Given the distinct interaction mode revealed by the crystal structure of JNK1–MKP7-CD, one obvious question is whether this is a general mechanism used by all members of the JNK-specific MKPs. RESULTS +73 85 JNK1–MKP7-CD complex_assembly Given the distinct interaction mode revealed by the crystal structure of JNK1–MKP7-CD, one obvious question is whether this is a general mechanism used by all members of the JNK-specific MKPs. RESULTS +174 191 JNK-specific MKPs protein_type Given the distinct interaction mode revealed by the crystal structure of JNK1–MKP7-CD, one obvious question is whether this is a general mechanism used by all members of the JNK-specific MKPs. RESULTS +64 68 JNK1 protein To address this issue, we first examined the docking ability of JNK1 to the KBD and CD of MKP5 using gel filtration analysis and pull-down assays. RESULTS +76 79 KBD structure_element To address this issue, we first examined the docking ability of JNK1 to the KBD and CD of MKP5 using gel filtration analysis and pull-down assays. RESULTS +84 86 CD structure_element To address this issue, we first examined the docking ability of JNK1 to the KBD and CD of MKP5 using gel filtration analysis and pull-down assays. RESULTS +90 94 MKP5 protein To address this issue, we first examined the docking ability of JNK1 to the KBD and CD of MKP5 using gel filtration analysis and pull-down assays. RESULTS +101 124 gel filtration analysis experimental_method To address this issue, we first examined the docking ability of JNK1 to the KBD and CD of MKP5 using gel filtration analysis and pull-down assays. RESULTS +129 145 pull-down assays experimental_method To address this issue, we first examined the docking ability of JNK1 to the KBD and CD of MKP5 using gel filtration analysis and pull-down assays. RESULTS +20 46 gel filtration experiments experimental_method It can be seen from gel filtration experiments that JNK1 can forms a stable heterodimer with MKP5-CD in solution, but no detectable interaction was found with the KBD domain (Fig. 7d). RESULTS +52 56 JNK1 protein It can be seen from gel filtration experiments that JNK1 can forms a stable heterodimer with MKP5-CD in solution, but no detectable interaction was found with the KBD domain (Fig. 7d). RESULTS +69 75 stable protein_state It can be seen from gel filtration experiments that JNK1 can forms a stable heterodimer with MKP5-CD in solution, but no detectable interaction was found with the KBD domain (Fig. 7d). RESULTS +76 87 heterodimer oligomeric_state It can be seen from gel filtration experiments that JNK1 can forms a stable heterodimer with MKP5-CD in solution, but no detectable interaction was found with the KBD domain (Fig. 7d). RESULTS +93 97 MKP5 protein It can be seen from gel filtration experiments that JNK1 can forms a stable heterodimer with MKP5-CD in solution, but no detectable interaction was found with the KBD domain (Fig. 7d). RESULTS +98 100 CD structure_element It can be seen from gel filtration experiments that JNK1 can forms a stable heterodimer with MKP5-CD in solution, but no detectable interaction was found with the KBD domain (Fig. 7d). RESULTS +163 166 KBD structure_element It can be seen from gel filtration experiments that JNK1 can forms a stable heterodimer with MKP5-CD in solution, but no detectable interaction was found with the KBD domain (Fig. 7d). RESULTS +0 16 Pull-down assays experimental_method Pull-down assays also confirmed the protein–protein interactions observed above. RESULTS +4 20 catalytic domain structure_element The catalytic domain of MKP5, but not its KBD, was able to pull-down a detectable amount of JNK1 (Fig. 7e), implicating a different substrate-recognition mechanisms for p38 and JNK MAPKs. RESULTS +24 28 MKP5 protein The catalytic domain of MKP5, but not its KBD, was able to pull-down a detectable amount of JNK1 (Fig. 7e), implicating a different substrate-recognition mechanisms for p38 and JNK MAPKs. RESULTS +42 45 KBD structure_element The catalytic domain of MKP5, but not its KBD, was able to pull-down a detectable amount of JNK1 (Fig. 7e), implicating a different substrate-recognition mechanisms for p38 and JNK MAPKs. RESULTS +92 96 JNK1 protein The catalytic domain of MKP5, but not its KBD, was able to pull-down a detectable amount of JNK1 (Fig. 7e), implicating a different substrate-recognition mechanisms for p38 and JNK MAPKs. RESULTS +169 172 p38 protein_type The catalytic domain of MKP5, but not its KBD, was able to pull-down a detectable amount of JNK1 (Fig. 7e), implicating a different substrate-recognition mechanisms for p38 and JNK MAPKs. RESULTS +177 180 JNK protein_type The catalytic domain of MKP5, but not its KBD, was able to pull-down a detectable amount of JNK1 (Fig. 7e), implicating a different substrate-recognition mechanisms for p38 and JNK MAPKs. RESULTS +181 186 MAPKs protein_type The catalytic domain of MKP5, but not its KBD, was able to pull-down a detectable amount of JNK1 (Fig. 7e), implicating a different substrate-recognition mechanisms for p38 and JNK MAPKs. RESULTS +54 58 MKP5 protein To further test our hypothesis, we generated forms of MKP5-CD bearing mutations corresponding to the changes we made on MKP7-CD on the basis of sequence and structural alignment and examined their effects on the phosphatase activity. RESULTS +59 61 CD structure_element To further test our hypothesis, we generated forms of MKP5-CD bearing mutations corresponding to the changes we made on MKP7-CD on the basis of sequence and structural alignment and examined their effects on the phosphatase activity. RESULTS +70 79 mutations experimental_method To further test our hypothesis, we generated forms of MKP5-CD bearing mutations corresponding to the changes we made on MKP7-CD on the basis of sequence and structural alignment and examined their effects on the phosphatase activity. RESULTS +120 124 MKP7 protein To further test our hypothesis, we generated forms of MKP5-CD bearing mutations corresponding to the changes we made on MKP7-CD on the basis of sequence and structural alignment and examined their effects on the phosphatase activity. RESULTS +125 127 CD structure_element To further test our hypothesis, we generated forms of MKP5-CD bearing mutations corresponding to the changes we made on MKP7-CD on the basis of sequence and structural alignment and examined their effects on the phosphatase activity. RESULTS +144 177 sequence and structural alignment experimental_method To further test our hypothesis, we generated forms of MKP5-CD bearing mutations corresponding to the changes we made on MKP7-CD on the basis of sequence and structural alignment and examined their effects on the phosphatase activity. RESULTS +212 223 phosphatase protein_type To further test our hypothesis, we generated forms of MKP5-CD bearing mutations corresponding to the changes we made on MKP7-CD on the basis of sequence and structural alignment and examined their effects on the phosphatase activity. RESULTS +25 30 T432A mutant As shown in Fig. 7f, the T432A and L449F MKP5 mutant showed little or no difference in phosphatase activity, whereas the other mutants showed reduced specific activities of MKP5. RESULTS +35 40 L449F mutant As shown in Fig. 7f, the T432A and L449F MKP5 mutant showed little or no difference in phosphatase activity, whereas the other mutants showed reduced specific activities of MKP5. RESULTS +41 45 MKP5 protein As shown in Fig. 7f, the T432A and L449F MKP5 mutant showed little or no difference in phosphatase activity, whereas the other mutants showed reduced specific activities of MKP5. RESULTS +46 52 mutant protein_state As shown in Fig. 7f, the T432A and L449F MKP5 mutant showed little or no difference in phosphatase activity, whereas the other mutants showed reduced specific activities of MKP5. RESULTS +127 134 mutants protein_state As shown in Fig. 7f, the T432A and L449F MKP5 mutant showed little or no difference in phosphatase activity, whereas the other mutants showed reduced specific activities of MKP5. RESULTS +173 177 MKP5 protein As shown in Fig. 7f, the T432A and L449F MKP5 mutant showed little or no difference in phosphatase activity, whereas the other mutants showed reduced specific activities of MKP5. RESULTS +18 22 MKP7 protein As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +32 39 mutants protein_state As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +48 55 F451D/A mutant As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +67 74 pNPPase protein_type As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +110 119 wild-type protein_state As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +120 124 MKP5 protein As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +125 127 CD structure_element As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +147 162 point mutations experimental_method As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +166 170 JNK1 protein As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +188 204 binding affinity evidence As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +208 212 MKP5 protein As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +213 215 CD structure_element As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +220 224 JNK1 protein As in the case of MKP7, all the mutants, except F451D/A, showed no pNPPase activity changes compared with the wild-type MKP5-CD (Fig. 7g), and the point mutations in JNK1 also reduced the binding affinity of MKP5-CD for JNK1 (Fig. 7h). RESULTS +58 68 CD spectra evidence In addition, there were no significant differences in the CD spectra between wild-type and mutant proteins, indicating that the overall structures of these mutants did not change significantly from that of wild-type MKP5 protein (Supplementary Fig. 4a). RESULTS +77 86 wild-type protein_state In addition, there were no significant differences in the CD spectra between wild-type and mutant proteins, indicating that the overall structures of these mutants did not change significantly from that of wild-type MKP5 protein (Supplementary Fig. 4a). RESULTS +91 97 mutant protein_state In addition, there were no significant differences in the CD spectra between wild-type and mutant proteins, indicating that the overall structures of these mutants did not change significantly from that of wild-type MKP5 protein (Supplementary Fig. 4a). RESULTS +136 146 structures evidence In addition, there were no significant differences in the CD spectra between wild-type and mutant proteins, indicating that the overall structures of these mutants did not change significantly from that of wild-type MKP5 protein (Supplementary Fig. 4a). RESULTS +156 163 mutants protein_state In addition, there were no significant differences in the CD spectra between wild-type and mutant proteins, indicating that the overall structures of these mutants did not change significantly from that of wild-type MKP5 protein (Supplementary Fig. 4a). RESULTS +206 215 wild-type protein_state In addition, there were no significant differences in the CD spectra between wild-type and mutant proteins, indicating that the overall structures of these mutants did not change significantly from that of wild-type MKP5 protein (Supplementary Fig. 4a). RESULTS +216 220 MKP5 protein In addition, there were no significant differences in the CD spectra between wild-type and mutant proteins, indicating that the overall structures of these mutants did not change significantly from that of wild-type MKP5 protein (Supplementary Fig. 4a). RESULTS +41 45 MKP5 protein Taken together, our results suggest that MKP5 binds JNK1 in a docking mode similar to that in the JNK1–MKP7 complex, and the detailed interaction model can be generated using molecular dynamics simulation based on the structure of JNK1–MKP7-CD complex (Supplementary Fig. 4b,c). RESULTS +52 56 JNK1 protein Taken together, our results suggest that MKP5 binds JNK1 in a docking mode similar to that in the JNK1–MKP7 complex, and the detailed interaction model can be generated using molecular dynamics simulation based on the structure of JNK1–MKP7-CD complex (Supplementary Fig. 4b,c). RESULTS +98 107 JNK1–MKP7 complex_assembly Taken together, our results suggest that MKP5 binds JNK1 in a docking mode similar to that in the JNK1–MKP7 complex, and the detailed interaction model can be generated using molecular dynamics simulation based on the structure of JNK1–MKP7-CD complex (Supplementary Fig. 4b,c). RESULTS +175 204 molecular dynamics simulation experimental_method Taken together, our results suggest that MKP5 binds JNK1 in a docking mode similar to that in the JNK1–MKP7 complex, and the detailed interaction model can be generated using molecular dynamics simulation based on the structure of JNK1–MKP7-CD complex (Supplementary Fig. 4b,c). RESULTS +218 227 structure evidence Taken together, our results suggest that MKP5 binds JNK1 in a docking mode similar to that in the JNK1–MKP7 complex, and the detailed interaction model can be generated using molecular dynamics simulation based on the structure of JNK1–MKP7-CD complex (Supplementary Fig. 4b,c). RESULTS +231 243 JNK1–MKP7-CD complex_assembly Taken together, our results suggest that MKP5 binds JNK1 in a docking mode similar to that in the JNK1–MKP7 complex, and the detailed interaction model can be generated using molecular dynamics simulation based on the structure of JNK1–MKP7-CD complex (Supplementary Fig. 4b,c). RESULTS +19 23 MKP5 protein In this model, the MKP5-CD adopts a conformation nearly identical to that in its unbound form, suggesting that the conformation of the catalytic domain undergoes little change, if any at all, upon JNK1 binding. RESULTS +24 26 CD structure_element In this model, the MKP5-CD adopts a conformation nearly identical to that in its unbound form, suggesting that the conformation of the catalytic domain undergoes little change, if any at all, upon JNK1 binding. RESULTS +81 88 unbound protein_state In this model, the MKP5-CD adopts a conformation nearly identical to that in its unbound form, suggesting that the conformation of the catalytic domain undergoes little change, if any at all, upon JNK1 binding. RESULTS +135 151 catalytic domain structure_element In this model, the MKP5-CD adopts a conformation nearly identical to that in its unbound form, suggesting that the conformation of the catalytic domain undergoes little change, if any at all, upon JNK1 binding. RESULTS +197 201 JNK1 protein In this model, the MKP5-CD adopts a conformation nearly identical to that in its unbound form, suggesting that the conformation of the catalytic domain undergoes little change, if any at all, upon JNK1 binding. RESULTS +15 21 Leu449 residue_name_number In particular, Leu449 of MKP5, which is equivalent to the key residue Phe285 of MKP7, buried deeply within the hydrophobic pocket of JNK1 in the same way as Phe285 in the JNK1–MKP7-CD complex (Supplementary Fig. 4d). RESULTS +25 29 MKP5 protein In particular, Leu449 of MKP5, which is equivalent to the key residue Phe285 of MKP7, buried deeply within the hydrophobic pocket of JNK1 in the same way as Phe285 in the JNK1–MKP7-CD complex (Supplementary Fig. 4d). RESULTS +70 76 Phe285 residue_name_number In particular, Leu449 of MKP5, which is equivalent to the key residue Phe285 of MKP7, buried deeply within the hydrophobic pocket of JNK1 in the same way as Phe285 in the JNK1–MKP7-CD complex (Supplementary Fig. 4d). RESULTS +80 84 MKP7 protein In particular, Leu449 of MKP5, which is equivalent to the key residue Phe285 of MKP7, buried deeply within the hydrophobic pocket of JNK1 in the same way as Phe285 in the JNK1–MKP7-CD complex (Supplementary Fig. 4d). RESULTS +111 129 hydrophobic pocket site In particular, Leu449 of MKP5, which is equivalent to the key residue Phe285 of MKP7, buried deeply within the hydrophobic pocket of JNK1 in the same way as Phe285 in the JNK1–MKP7-CD complex (Supplementary Fig. 4d). RESULTS +133 137 JNK1 protein In particular, Leu449 of MKP5, which is equivalent to the key residue Phe285 of MKP7, buried deeply within the hydrophobic pocket of JNK1 in the same way as Phe285 in the JNK1–MKP7-CD complex (Supplementary Fig. 4d). RESULTS +157 163 Phe285 residue_name_number In particular, Leu449 of MKP5, which is equivalent to the key residue Phe285 of MKP7, buried deeply within the hydrophobic pocket of JNK1 in the same way as Phe285 in the JNK1–MKP7-CD complex (Supplementary Fig. 4d). RESULTS +171 183 JNK1–MKP7-CD complex_assembly In particular, Leu449 of MKP5, which is equivalent to the key residue Phe285 of MKP7, buried deeply within the hydrophobic pocket of JNK1 in the same way as Phe285 in the JNK1–MKP7-CD complex (Supplementary Fig. 4d). RESULTS +40 44 JNK1 protein Despite the strong similarities between JNK1–MKP5-CD and JNK1–MKP7-CD, however, there are differences. RESULTS +45 49 MKP5 protein Despite the strong similarities between JNK1–MKP5-CD and JNK1–MKP7-CD, however, there are differences. RESULTS +50 52 CD structure_element Despite the strong similarities between JNK1–MKP5-CD and JNK1–MKP7-CD, however, there are differences. RESULTS +57 69 JNK1–MKP7-CD complex_assembly Despite the strong similarities between JNK1–MKP5-CD and JNK1–MKP7-CD, however, there are differences. RESULTS +4 16 JNK1–MKP7-CD complex_assembly The JNK1–MKP7-CD interaction is better and more extensive. RESULTS +0 6 Asp268 residue_name_number Asp268 of MKP7-CD forms salt bridge with JNK1 Arg263, whereas the corresponding residue Thr432 in MKP5-CD may not interact with JNK1. RESULTS +10 14 MKP7 protein Asp268 of MKP7-CD forms salt bridge with JNK1 Arg263, whereas the corresponding residue Thr432 in MKP5-CD may not interact with JNK1. RESULTS +15 17 CD structure_element Asp268 of MKP7-CD forms salt bridge with JNK1 Arg263, whereas the corresponding residue Thr432 in MKP5-CD may not interact with JNK1. RESULTS +24 35 salt bridge bond_interaction Asp268 of MKP7-CD forms salt bridge with JNK1 Arg263, whereas the corresponding residue Thr432 in MKP5-CD may not interact with JNK1. RESULTS +41 45 JNK1 protein Asp268 of MKP7-CD forms salt bridge with JNK1 Arg263, whereas the corresponding residue Thr432 in MKP5-CD may not interact with JNK1. RESULTS +46 52 Arg263 residue_name_number Asp268 of MKP7-CD forms salt bridge with JNK1 Arg263, whereas the corresponding residue Thr432 in MKP5-CD may not interact with JNK1. RESULTS +88 94 Thr432 residue_name_number Asp268 of MKP7-CD forms salt bridge with JNK1 Arg263, whereas the corresponding residue Thr432 in MKP5-CD may not interact with JNK1. RESULTS +98 102 MKP5 protein Asp268 of MKP7-CD forms salt bridge with JNK1 Arg263, whereas the corresponding residue Thr432 in MKP5-CD may not interact with JNK1. RESULTS +103 105 CD structure_element Asp268 of MKP7-CD forms salt bridge with JNK1 Arg263, whereas the corresponding residue Thr432 in MKP5-CD may not interact with JNK1. RESULTS +128 132 JNK1 protein Asp268 of MKP7-CD forms salt bridge with JNK1 Arg263, whereas the corresponding residue Thr432 in MKP5-CD may not interact with JNK1. RESULTS +45 49 MKP7 protein In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +50 52 CD structure_element In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +54 60 Phe215 residue_name_number In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +62 68 Leu267 residue_name_number In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +73 79 Leu288 residue_name_number In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +124 130 Asn379 residue_name_number In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +132 138 Met431 residue_name_number In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +143 149 Met452 residue_name_number In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +153 157 MKP5 protein In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +158 160 CD structure_element In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +213 237 hydrophobic interactions bond_interaction In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +246 250 MKP5 protein In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +251 253 CD structure_element In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +258 262 JNK1 protein In addition, the key interacting residues of MKP7-CD, Phe215, Leu267 and Leu288, are replaced by less hydrophobic residues, Asn379, Met431 and Met452 in MKP5-CD (Fig. 5c), respectively, which may result in weaker hydrophobic interactions between MKP5-CD and JNK1. RESULTS +66 70 JNK1 protein This is consistent with the experimental observation showing that JNK1 binds to MKP7-CD much more tightly than MKP5-CD (Km value of MKP5-CD for pJNK1 substrate is ∼20-fold higher than that of MKP7-CD). RESULTS +80 84 MKP7 protein This is consistent with the experimental observation showing that JNK1 binds to MKP7-CD much more tightly than MKP5-CD (Km value of MKP5-CD for pJNK1 substrate is ∼20-fold higher than that of MKP7-CD). RESULTS +85 87 CD structure_element This is consistent with the experimental observation showing that JNK1 binds to MKP7-CD much more tightly than MKP5-CD (Km value of MKP5-CD for pJNK1 substrate is ∼20-fold higher than that of MKP7-CD). RESULTS +111 115 MKP5 protein This is consistent with the experimental observation showing that JNK1 binds to MKP7-CD much more tightly than MKP5-CD (Km value of MKP5-CD for pJNK1 substrate is ∼20-fold higher than that of MKP7-CD). RESULTS +116 118 CD structure_element This is consistent with the experimental observation showing that JNK1 binds to MKP7-CD much more tightly than MKP5-CD (Km value of MKP5-CD for pJNK1 substrate is ∼20-fold higher than that of MKP7-CD). RESULTS +132 136 MKP5 protein This is consistent with the experimental observation showing that JNK1 binds to MKP7-CD much more tightly than MKP5-CD (Km value of MKP5-CD for pJNK1 substrate is ∼20-fold higher than that of MKP7-CD). RESULTS +137 139 CD structure_element This is consistent with the experimental observation showing that JNK1 binds to MKP7-CD much more tightly than MKP5-CD (Km value of MKP5-CD for pJNK1 substrate is ∼20-fold higher than that of MKP7-CD). RESULTS +144 145 p protein_state This is consistent with the experimental observation showing that JNK1 binds to MKP7-CD much more tightly than MKP5-CD (Km value of MKP5-CD for pJNK1 substrate is ∼20-fold higher than that of MKP7-CD). RESULTS +145 149 JNK1 protein This is consistent with the experimental observation showing that JNK1 binds to MKP7-CD much more tightly than MKP5-CD (Km value of MKP5-CD for pJNK1 substrate is ∼20-fold higher than that of MKP7-CD). RESULTS +192 196 MKP7 protein This is consistent with the experimental observation showing that JNK1 binds to MKP7-CD much more tightly than MKP5-CD (Km value of MKP5-CD for pJNK1 substrate is ∼20-fold higher than that of MKP7-CD). RESULTS +197 199 CD structure_element This is consistent with the experimental observation showing that JNK1 binds to MKP7-CD much more tightly than MKP5-CD (Km value of MKP5-CD for pJNK1 substrate is ∼20-fold higher than that of MKP7-CD). RESULTS +4 9 MAPKs protein_type The MAPKs p38, ERK and JNK, are central to evolutionarily conserved signalling pathways that are present in all eukaryotic cells. DISCUSS +10 13 p38 protein_type The MAPKs p38, ERK and JNK, are central to evolutionarily conserved signalling pathways that are present in all eukaryotic cells. DISCUSS +15 18 ERK protein_type The MAPKs p38, ERK and JNK, are central to evolutionarily conserved signalling pathways that are present in all eukaryotic cells. DISCUSS +23 26 JNK protein_type The MAPKs p38, ERK and JNK, are central to evolutionarily conserved signalling pathways that are present in all eukaryotic cells. DISCUSS +112 122 eukaryotic taxonomy_domain The MAPKs p38, ERK and JNK, are central to evolutionarily conserved signalling pathways that are present in all eukaryotic cells. DISCUSS +5 9 MAPK protein_type Each MAPK cascade is activated in response to a diverse array of extracellular signals and culminates in the dual-phosphorylation of a threonine and a tyrosine residue in the MAPK-activation loop. DISCUSS +109 129 dual-phosphorylation ptm Each MAPK cascade is activated in response to a diverse array of extracellular signals and culminates in the dual-phosphorylation of a threonine and a tyrosine residue in the MAPK-activation loop. DISCUSS +135 144 threonine residue_name Each MAPK cascade is activated in response to a diverse array of extracellular signals and culminates in the dual-phosphorylation of a threonine and a tyrosine residue in the MAPK-activation loop. DISCUSS +151 159 tyrosine residue_name Each MAPK cascade is activated in response to a diverse array of extracellular signals and culminates in the dual-phosphorylation of a threonine and a tyrosine residue in the MAPK-activation loop. DISCUSS +175 195 MAPK-activation loop structure_element Each MAPK cascade is activated in response to a diverse array of extracellular signals and culminates in the dual-phosphorylation of a threonine and a tyrosine residue in the MAPK-activation loop. DISCUSS +19 23 MAPK protein_type The propagation of MAPK signals is attenuated through the actions of the MKPs. DISCUSS +73 77 MKPs protein_type The propagation of MAPK signals is attenuated through the actions of the MKPs. DISCUSS +54 59 MAPKs protein_type Most studies have focused on the dephosphorylation of MAPKs by phosphatases containing the ‘kinase-interaction motif ' (D-motif), including a group of DUSPs (MKPs) and a distinct subfamily of tyrosine phosphatases (HePTP, STEP and PTP-SL). DISCUSS +63 75 phosphatases protein_type Most studies have focused on the dephosphorylation of MAPKs by phosphatases containing the ‘kinase-interaction motif ' (D-motif), including a group of DUSPs (MKPs) and a distinct subfamily of tyrosine phosphatases (HePTP, STEP and PTP-SL). DISCUSS +92 116 kinase-interaction motif structure_element Most studies have focused on the dephosphorylation of MAPKs by phosphatases containing the ‘kinase-interaction motif ' (D-motif), including a group of DUSPs (MKPs) and a distinct subfamily of tyrosine phosphatases (HePTP, STEP and PTP-SL). DISCUSS +120 127 D-motif structure_element Most studies have focused on the dephosphorylation of MAPKs by phosphatases containing the ‘kinase-interaction motif ' (D-motif), including a group of DUSPs (MKPs) and a distinct subfamily of tyrosine phosphatases (HePTP, STEP and PTP-SL). DISCUSS +151 156 DUSPs protein_type Most studies have focused on the dephosphorylation of MAPKs by phosphatases containing the ‘kinase-interaction motif ' (D-motif), including a group of DUSPs (MKPs) and a distinct subfamily of tyrosine phosphatases (HePTP, STEP and PTP-SL). DISCUSS +158 162 MKPs protein_type Most studies have focused on the dephosphorylation of MAPKs by phosphatases containing the ‘kinase-interaction motif ' (D-motif), including a group of DUSPs (MKPs) and a distinct subfamily of tyrosine phosphatases (HePTP, STEP and PTP-SL). DISCUSS +192 213 tyrosine phosphatases protein_type Most studies have focused on the dephosphorylation of MAPKs by phosphatases containing the ‘kinase-interaction motif ' (D-motif), including a group of DUSPs (MKPs) and a distinct subfamily of tyrosine phosphatases (HePTP, STEP and PTP-SL). DISCUSS +215 220 HePTP protein Most studies have focused on the dephosphorylation of MAPKs by phosphatases containing the ‘kinase-interaction motif ' (D-motif), including a group of DUSPs (MKPs) and a distinct subfamily of tyrosine phosphatases (HePTP, STEP and PTP-SL). DISCUSS +222 226 STEP protein Most studies have focused on the dephosphorylation of MAPKs by phosphatases containing the ‘kinase-interaction motif ' (D-motif), including a group of DUSPs (MKPs) and a distinct subfamily of tyrosine phosphatases (HePTP, STEP and PTP-SL). DISCUSS +231 237 PTP-SL protein Most studies have focused on the dephosphorylation of MAPKs by phosphatases containing the ‘kinase-interaction motif ' (D-motif), including a group of DUSPs (MKPs) and a distinct subfamily of tyrosine phosphatases (HePTP, STEP and PTP-SL). DISCUSS +0 18 Crystal structures evidence Crystal structures of ERK2 bound with the D-motif sequences derived from MKP3 and HePTP have been reported. DISCUSS +22 26 ERK2 protein Crystal structures of ERK2 bound with the D-motif sequences derived from MKP3 and HePTP have been reported. DISCUSS +27 37 bound with protein_state Crystal structures of ERK2 bound with the D-motif sequences derived from MKP3 and HePTP have been reported. DISCUSS +42 49 D-motif structure_element Crystal structures of ERK2 bound with the D-motif sequences derived from MKP3 and HePTP have been reported. DISCUSS +73 77 MKP3 protein Crystal structures of ERK2 bound with the D-motif sequences derived from MKP3 and HePTP have been reported. DISCUSS +82 87 HePTP protein Crystal structures of ERK2 bound with the D-motif sequences derived from MKP3 and HePTP have been reported. DISCUSS +6 16 structures evidence These structures revealed that linear docking motifs in interacting proteins bind to a common docking site on MAPKs outside the kinase active site. DISCUSS +31 52 linear docking motifs structure_element These structures revealed that linear docking motifs in interacting proteins bind to a common docking site on MAPKs outside the kinase active site. DISCUSS +94 106 docking site site These structures revealed that linear docking motifs in interacting proteins bind to a common docking site on MAPKs outside the kinase active site. DISCUSS +110 115 MAPKs protein_type These structures revealed that linear docking motifs in interacting proteins bind to a common docking site on MAPKs outside the kinase active site. DISCUSS +128 134 kinase protein_type These structures revealed that linear docking motifs in interacting proteins bind to a common docking site on MAPKs outside the kinase active site. DISCUSS +135 146 active site site These structures revealed that linear docking motifs in interacting proteins bind to a common docking site on MAPKs outside the kinase active site. DISCUSS +52 59 D-motif structure_element The particular amino acids and their spacing within D-motif sequences and amino acid composition of the docking sites on MAPKs appear to determine the specificity of D-motifs for individual MAPKs. DISCUSS +104 117 docking sites site The particular amino acids and their spacing within D-motif sequences and amino acid composition of the docking sites on MAPKs appear to determine the specificity of D-motifs for individual MAPKs. DISCUSS +121 126 MAPKs protein_type The particular amino acids and their spacing within D-motif sequences and amino acid composition of the docking sites on MAPKs appear to determine the specificity of D-motifs for individual MAPKs. DISCUSS +166 174 D-motifs structure_element The particular amino acids and their spacing within D-motif sequences and amino acid composition of the docking sites on MAPKs appear to determine the specificity of D-motifs for individual MAPKs. DISCUSS +190 195 MAPKs protein_type The particular amino acids and their spacing within D-motif sequences and amino acid composition of the docking sites on MAPKs appear to determine the specificity of D-motifs for individual MAPKs. DISCUSS +14 31 crystal structure evidence Recently, the crystal structure of a complex between the KBD of MKP5 and p38α has been obtained. DISCUSS +57 60 KBD structure_element Recently, the crystal structure of a complex between the KBD of MKP5 and p38α has been obtained. DISCUSS +64 68 MKP5 protein Recently, the crystal structure of a complex between the KBD of MKP5 and p38α has been obtained. DISCUSS +73 77 p38α protein Recently, the crystal structure of a complex between the KBD of MKP5 and p38α has been obtained. DISCUSS +58 62 MKP5 protein This complex has revealed a distinct interaction mode for MKP5. DISCUSS +4 7 KBD structure_element The KBD of MKP5 binds to p38α in the opposite polypeptide direction compared with how the D-motif of MKP3 binds to ERK2. DISCUSS +11 15 MKP5 protein The KBD of MKP5 binds to p38α in the opposite polypeptide direction compared with how the D-motif of MKP3 binds to ERK2. DISCUSS +25 29 p38α protein The KBD of MKP5 binds to p38α in the opposite polypeptide direction compared with how the D-motif of MKP3 binds to ERK2. DISCUSS +90 97 D-motif structure_element The KBD of MKP5 binds to p38α in the opposite polypeptide direction compared with how the D-motif of MKP3 binds to ERK2. DISCUSS +101 105 MKP3 protein The KBD of MKP5 binds to p38α in the opposite polypeptide direction compared with how the D-motif of MKP3 binds to ERK2. DISCUSS +115 119 ERK2 protein The KBD of MKP5 binds to p38α in the opposite polypeptide direction compared with how the D-motif of MKP3 binds to ERK2. DISCUSS +29 49 D-motif-binding mode site In contrast to the canonical D-motif-binding mode, separate helices, α2 and α3′, in the KBD of MKP5 engage the p38α-docking site. DISCUSS +60 67 helices structure_element In contrast to the canonical D-motif-binding mode, separate helices, α2 and α3′, in the KBD of MKP5 engage the p38α-docking site. DISCUSS +69 71 α2 structure_element In contrast to the canonical D-motif-binding mode, separate helices, α2 and α3′, in the KBD of MKP5 engage the p38α-docking site. DISCUSS +76 79 α3′ structure_element In contrast to the canonical D-motif-binding mode, separate helices, α2 and α3′, in the KBD of MKP5 engage the p38α-docking site. DISCUSS +88 91 KBD structure_element In contrast to the canonical D-motif-binding mode, separate helices, α2 and α3′, in the KBD of MKP5 engage the p38α-docking site. DISCUSS +95 99 MKP5 protein In contrast to the canonical D-motif-binding mode, separate helices, α2 and α3′, in the KBD of MKP5 engage the p38α-docking site. DISCUSS +111 128 p38α-docking site site In contrast to the canonical D-motif-binding mode, separate helices, α2 and α3′, in the KBD of MKP5 engage the p38α-docking site. DISCUSS +8 42 structural and biochemical studies experimental_method Further structural and biochemical studies indicate that KBD of MKP7 may interact with p38α in a similar manner to that of MKP5. DISCUSS +57 60 KBD structure_element Further structural and biochemical studies indicate that KBD of MKP7 may interact with p38α in a similar manner to that of MKP5. DISCUSS +64 68 MKP7 protein Further structural and biochemical studies indicate that KBD of MKP7 may interact with p38α in a similar manner to that of MKP5. DISCUSS +87 91 p38α protein Further structural and biochemical studies indicate that KBD of MKP7 may interact with p38α in a similar manner to that of MKP5. DISCUSS +123 127 MKP5 protein Further structural and biochemical studies indicate that KBD of MKP7 may interact with p38α in a similar manner to that of MKP5. DISCUSS +15 19 MKP5 protein In contrast to MKP5, removal of the KBD domain from MKP7 does not drastically affect enzyme catalysis, and the kinetic parameters of MKP7-CD for p38α substrate are very similar to those for JNK1 substrate. DISCUSS +21 31 removal of experimental_method In contrast to MKP5, removal of the KBD domain from MKP7 does not drastically affect enzyme catalysis, and the kinetic parameters of MKP7-CD for p38α substrate are very similar to those for JNK1 substrate. DISCUSS +36 39 KBD structure_element In contrast to MKP5, removal of the KBD domain from MKP7 does not drastically affect enzyme catalysis, and the kinetic parameters of MKP7-CD for p38α substrate are very similar to those for JNK1 substrate. DISCUSS +52 56 MKP7 protein In contrast to MKP5, removal of the KBD domain from MKP7 does not drastically affect enzyme catalysis, and the kinetic parameters of MKP7-CD for p38α substrate are very similar to those for JNK1 substrate. DISCUSS +133 137 MKP7 protein In contrast to MKP5, removal of the KBD domain from MKP7 does not drastically affect enzyme catalysis, and the kinetic parameters of MKP7-CD for p38α substrate are very similar to those for JNK1 substrate. DISCUSS +138 140 CD structure_element In contrast to MKP5, removal of the KBD domain from MKP7 does not drastically affect enzyme catalysis, and the kinetic parameters of MKP7-CD for p38α substrate are very similar to those for JNK1 substrate. DISCUSS +145 149 p38α protein In contrast to MKP5, removal of the KBD domain from MKP7 does not drastically affect enzyme catalysis, and the kinetic parameters of MKP7-CD for p38α substrate are very similar to those for JNK1 substrate. DISCUSS +190 194 JNK1 protein In contrast to MKP5, removal of the KBD domain from MKP7 does not drastically affect enzyme catalysis, and the kinetic parameters of MKP7-CD for p38α substrate are very similar to those for JNK1 substrate. DISCUSS +43 47 MKP7 protein Taken together, these results suggest that MKP7 utilizes a bipartite recognition mechanism to achieve the efficiency and fidelity of p38α signalling. DISCUSS +133 137 p38α protein Taken together, these results suggest that MKP7 utilizes a bipartite recognition mechanism to achieve the efficiency and fidelity of p38α signalling. DISCUSS +4 8 MKP7 protein The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +9 12 KBD structure_element The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +26 32 D-site site The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +65 69 p38α protein The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +70 86 catalytic pocket site The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +149 153 MKP7 protein The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +154 156 CD structure_element The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +170 174 p38α protein The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +216 231 activation loop structure_element The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +317 321 MKP7 protein The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +322 333 active site site The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +377 381 p38α protein The MKP7-KBD docks to the D-site located on the back side of the p38α catalytic pocket for high-affinity association, whereas the interaction of the MKP7-CD with another p38α structural region, which is close to the activation loop, may not only stabilize binding but also provide contacts crucial for organizing the MKP7 active site with respect to the phosphoreceptor in the p38α substrate for efficient dephosphorylation. DISCUSS +29 35 D-site site In addition to the canonical D-site, the MAPK ERK2 contains a second binding site utilized by transcription factor substrates and phosphatases, the FXF-motif-binding site (also called F-site), that is exposed in active ERK2 and the D-motif peptide-induced conformation of MAPKs. DISCUSS +41 45 MAPK protein_type In addition to the canonical D-site, the MAPK ERK2 contains a second binding site utilized by transcription factor substrates and phosphatases, the FXF-motif-binding site (also called F-site), that is exposed in active ERK2 and the D-motif peptide-induced conformation of MAPKs. DISCUSS +46 50 ERK2 protein In addition to the canonical D-site, the MAPK ERK2 contains a second binding site utilized by transcription factor substrates and phosphatases, the FXF-motif-binding site (also called F-site), that is exposed in active ERK2 and the D-motif peptide-induced conformation of MAPKs. DISCUSS +62 81 second binding site site In addition to the canonical D-site, the MAPK ERK2 contains a second binding site utilized by transcription factor substrates and phosphatases, the FXF-motif-binding site (also called F-site), that is exposed in active ERK2 and the D-motif peptide-induced conformation of MAPKs. DISCUSS +130 142 phosphatases protein_type In addition to the canonical D-site, the MAPK ERK2 contains a second binding site utilized by transcription factor substrates and phosphatases, the FXF-motif-binding site (also called F-site), that is exposed in active ERK2 and the D-motif peptide-induced conformation of MAPKs. DISCUSS +148 170 FXF-motif-binding site site In addition to the canonical D-site, the MAPK ERK2 contains a second binding site utilized by transcription factor substrates and phosphatases, the FXF-motif-binding site (also called F-site), that is exposed in active ERK2 and the D-motif peptide-induced conformation of MAPKs. DISCUSS +184 190 F-site site In addition to the canonical D-site, the MAPK ERK2 contains a second binding site utilized by transcription factor substrates and phosphatases, the FXF-motif-binding site (also called F-site), that is exposed in active ERK2 and the D-motif peptide-induced conformation of MAPKs. DISCUSS +212 218 active protein_state In addition to the canonical D-site, the MAPK ERK2 contains a second binding site utilized by transcription factor substrates and phosphatases, the FXF-motif-binding site (also called F-site), that is exposed in active ERK2 and the D-motif peptide-induced conformation of MAPKs. DISCUSS +219 223 ERK2 protein In addition to the canonical D-site, the MAPK ERK2 contains a second binding site utilized by transcription factor substrates and phosphatases, the FXF-motif-binding site (also called F-site), that is exposed in active ERK2 and the D-motif peptide-induced conformation of MAPKs. DISCUSS +232 239 D-motif structure_element In addition to the canonical D-site, the MAPK ERK2 contains a second binding site utilized by transcription factor substrates and phosphatases, the FXF-motif-binding site (also called F-site), that is exposed in active ERK2 and the D-motif peptide-induced conformation of MAPKs. DISCUSS +272 277 MAPKs protein_type In addition to the canonical D-site, the MAPK ERK2 contains a second binding site utilized by transcription factor substrates and phosphatases, the FXF-motif-binding site (also called F-site), that is exposed in active ERK2 and the D-motif peptide-induced conformation of MAPKs. DISCUSS +5 21 hydrophobic site site This hydrophobic site was first identified by changes in deuterium exchange profiles, and is near the MAPK insertion and helix αG. Interestingly, many of the equivalent residues in JNK1, important for MKP7-CD recognition, are also used for substrate binding by ERK2 (ref.), indicating that this site is overlapped with the DEF-site previously identified in ERK2 (Fig. 5d). DISCUSS +46 84 changes in deuterium exchange profiles evidence This hydrophobic site was first identified by changes in deuterium exchange profiles, and is near the MAPK insertion and helix αG. Interestingly, many of the equivalent residues in JNK1, important for MKP7-CD recognition, are also used for substrate binding by ERK2 (ref.), indicating that this site is overlapped with the DEF-site previously identified in ERK2 (Fig. 5d). DISCUSS +102 116 MAPK insertion structure_element This hydrophobic site was first identified by changes in deuterium exchange profiles, and is near the MAPK insertion and helix αG. Interestingly, many of the equivalent residues in JNK1, important for MKP7-CD recognition, are also used for substrate binding by ERK2 (ref.), indicating that this site is overlapped with the DEF-site previously identified in ERK2 (Fig. 5d). DISCUSS +121 126 helix structure_element This hydrophobic site was first identified by changes in deuterium exchange profiles, and is near the MAPK insertion and helix αG. Interestingly, many of the equivalent residues in JNK1, important for MKP7-CD recognition, are also used for substrate binding by ERK2 (ref.), indicating that this site is overlapped with the DEF-site previously identified in ERK2 (Fig. 5d). DISCUSS +127 129 αG structure_element This hydrophobic site was first identified by changes in deuterium exchange profiles, and is near the MAPK insertion and helix αG. Interestingly, many of the equivalent residues in JNK1, important for MKP7-CD recognition, are also used for substrate binding by ERK2 (ref.), indicating that this site is overlapped with the DEF-site previously identified in ERK2 (Fig. 5d). DISCUSS +181 185 JNK1 protein This hydrophobic site was first identified by changes in deuterium exchange profiles, and is near the MAPK insertion and helix αG. Interestingly, many of the equivalent residues in JNK1, important for MKP7-CD recognition, are also used for substrate binding by ERK2 (ref.), indicating that this site is overlapped with the DEF-site previously identified in ERK2 (Fig. 5d). DISCUSS +201 205 MKP7 protein This hydrophobic site was first identified by changes in deuterium exchange profiles, and is near the MAPK insertion and helix αG. Interestingly, many of the equivalent residues in JNK1, important for MKP7-CD recognition, are also used for substrate binding by ERK2 (ref.), indicating that this site is overlapped with the DEF-site previously identified in ERK2 (Fig. 5d). DISCUSS +206 208 CD structure_element This hydrophobic site was first identified by changes in deuterium exchange profiles, and is near the MAPK insertion and helix αG. Interestingly, many of the equivalent residues in JNK1, important for MKP7-CD recognition, are also used for substrate binding by ERK2 (ref.), indicating that this site is overlapped with the DEF-site previously identified in ERK2 (Fig. 5d). DISCUSS +261 265 ERK2 protein This hydrophobic site was first identified by changes in deuterium exchange profiles, and is near the MAPK insertion and helix αG. Interestingly, many of the equivalent residues in JNK1, important for MKP7-CD recognition, are also used for substrate binding by ERK2 (ref.), indicating that this site is overlapped with the DEF-site previously identified in ERK2 (Fig. 5d). DISCUSS +323 331 DEF-site site This hydrophobic site was first identified by changes in deuterium exchange profiles, and is near the MAPK insertion and helix αG. Interestingly, many of the equivalent residues in JNK1, important for MKP7-CD recognition, are also used for substrate binding by ERK2 (ref.), indicating that this site is overlapped with the DEF-site previously identified in ERK2 (Fig. 5d). DISCUSS +357 361 ERK2 protein This hydrophobic site was first identified by changes in deuterium exchange profiles, and is near the MAPK insertion and helix αG. Interestingly, many of the equivalent residues in JNK1, important for MKP7-CD recognition, are also used for substrate binding by ERK2 (ref.), indicating that this site is overlapped with the DEF-site previously identified in ERK2 (Fig. 5d). DISCUSS +0 4 MKP3 protein MKP3 is highly specific in dephosphorylating and inactivating ERK2, and the phosphatase activity of the MKP3-catalysed pNPP reaction can be markedly increased in the presence of ERK2 (refs). DISCUSS +62 66 ERK2 protein MKP3 is highly specific in dephosphorylating and inactivating ERK2, and the phosphatase activity of the MKP3-catalysed pNPP reaction can be markedly increased in the presence of ERK2 (refs). DISCUSS +104 108 MKP3 protein MKP3 is highly specific in dephosphorylating and inactivating ERK2, and the phosphatase activity of the MKP3-catalysed pNPP reaction can be markedly increased in the presence of ERK2 (refs). DISCUSS +119 123 pNPP chemical MKP3 is highly specific in dephosphorylating and inactivating ERK2, and the phosphatase activity of the MKP3-catalysed pNPP reaction can be markedly increased in the presence of ERK2 (refs). DISCUSS +166 177 presence of protein_state MKP3 is highly specific in dephosphorylating and inactivating ERK2, and the phosphatase activity of the MKP3-catalysed pNPP reaction can be markedly increased in the presence of ERK2 (refs). DISCUSS +178 182 ERK2 protein MKP3 is highly specific in dephosphorylating and inactivating ERK2, and the phosphatase activity of the MKP3-catalysed pNPP reaction can be markedly increased in the presence of ERK2 (refs). DISCUSS +0 18 Sequence alignment experimental_method Sequence alignment of all MKPs reveals a high degree of conservation of residues surrounding the interacting region observed in JNK1–MKP7-CD complex (Supplementary Fig. 5). DISCUSS +26 30 MKPs protein_type Sequence alignment of all MKPs reveals a high degree of conservation of residues surrounding the interacting region observed in JNK1–MKP7-CD complex (Supplementary Fig. 5). DISCUSS +97 115 interacting region site Sequence alignment of all MKPs reveals a high degree of conservation of residues surrounding the interacting region observed in JNK1–MKP7-CD complex (Supplementary Fig. 5). DISCUSS +128 140 JNK1–MKP7-CD complex_assembly Sequence alignment of all MKPs reveals a high degree of conservation of residues surrounding the interacting region observed in JNK1–MKP7-CD complex (Supplementary Fig. 5). DISCUSS +48 64 catalytic domain structure_element Therefore, it is tempting to speculate that the catalytic domain of MKP3 may bind to ERK2 in a manner analogous to the way by which MKP7-CD binds to JNK1. DISCUSS +68 72 MKP3 protein Therefore, it is tempting to speculate that the catalytic domain of MKP3 may bind to ERK2 in a manner analogous to the way by which MKP7-CD binds to JNK1. DISCUSS +85 89 ERK2 protein Therefore, it is tempting to speculate that the catalytic domain of MKP3 may bind to ERK2 in a manner analogous to the way by which MKP7-CD binds to JNK1. DISCUSS +132 136 MKP7 protein Therefore, it is tempting to speculate that the catalytic domain of MKP3 may bind to ERK2 in a manner analogous to the way by which MKP7-CD binds to JNK1. DISCUSS +137 139 CD structure_element Therefore, it is tempting to speculate that the catalytic domain of MKP3 may bind to ERK2 in a manner analogous to the way by which MKP7-CD binds to JNK1. DISCUSS +149 153 JNK1 protein Therefore, it is tempting to speculate that the catalytic domain of MKP3 may bind to ERK2 in a manner analogous to the way by which MKP7-CD binds to JNK1. DISCUSS +67 71 ERK2 protein A comprehensive examination of the molecular basis of the specific ERK2 recognition by MKP3 is underway. DISCUSS +87 91 MKP3 protein A comprehensive examination of the molecular basis of the specific ERK2 recognition by MKP3 is underway. DISCUSS +98 110 JNK1–MKP7-CD complex_assembly The ongoing work demonstrates that although the overall interaction modes are similar between the JNK1–MKP7-CD and ERK2–MKP3-CD complexes, the ERK2–MKP3-CD interaction is less extensive and helix α4 from MKP3-CD does not interact directly with ERK2. DISCUSS +115 127 ERK2–MKP3-CD complex_assembly The ongoing work demonstrates that although the overall interaction modes are similar between the JNK1–MKP7-CD and ERK2–MKP3-CD complexes, the ERK2–MKP3-CD interaction is less extensive and helix α4 from MKP3-CD does not interact directly with ERK2. DISCUSS +143 155 ERK2–MKP3-CD complex_assembly The ongoing work demonstrates that although the overall interaction modes are similar between the JNK1–MKP7-CD and ERK2–MKP3-CD complexes, the ERK2–MKP3-CD interaction is less extensive and helix α4 from MKP3-CD does not interact directly with ERK2. DISCUSS +190 195 helix structure_element The ongoing work demonstrates that although the overall interaction modes are similar between the JNK1–MKP7-CD and ERK2–MKP3-CD complexes, the ERK2–MKP3-CD interaction is less extensive and helix α4 from MKP3-CD does not interact directly with ERK2. DISCUSS +196 198 α4 structure_element The ongoing work demonstrates that although the overall interaction modes are similar between the JNK1–MKP7-CD and ERK2–MKP3-CD complexes, the ERK2–MKP3-CD interaction is less extensive and helix α4 from MKP3-CD does not interact directly with ERK2. DISCUSS +204 208 MKP3 protein The ongoing work demonstrates that although the overall interaction modes are similar between the JNK1–MKP7-CD and ERK2–MKP3-CD complexes, the ERK2–MKP3-CD interaction is less extensive and helix α4 from MKP3-CD does not interact directly with ERK2. DISCUSS +209 211 CD structure_element The ongoing work demonstrates that although the overall interaction modes are similar between the JNK1–MKP7-CD and ERK2–MKP3-CD complexes, the ERK2–MKP3-CD interaction is less extensive and helix α4 from MKP3-CD does not interact directly with ERK2. DISCUSS +244 248 ERK2 protein The ongoing work demonstrates that although the overall interaction modes are similar between the JNK1–MKP7-CD and ERK2–MKP3-CD complexes, the ERK2–MKP3-CD interaction is less extensive and helix α4 from MKP3-CD does not interact directly with ERK2. DISCUSS +4 13 FXF-motif structure_element The FXF-motif-mediated interaction is critical for both pERK2 inactivation and ERK2-induced MKP3 activation (manuscript in preparation). DISCUSS +56 57 p protein_state The FXF-motif-mediated interaction is critical for both pERK2 inactivation and ERK2-induced MKP3 activation (manuscript in preparation). DISCUSS +57 61 ERK2 protein The FXF-motif-mediated interaction is critical for both pERK2 inactivation and ERK2-induced MKP3 activation (manuscript in preparation). DISCUSS +79 83 ERK2 protein The FXF-motif-mediated interaction is critical for both pERK2 inactivation and ERK2-induced MKP3 activation (manuscript in preparation). DISCUSS +92 96 MKP3 protein The FXF-motif-mediated interaction is critical for both pERK2 inactivation and ERK2-induced MKP3 activation (manuscript in preparation). DISCUSS +33 42 structure evidence In summary, we have resolved the structure of JNK1 in complex with the catalytic domain of MKP7. DISCUSS +46 50 JNK1 protein In summary, we have resolved the structure of JNK1 in complex with the catalytic domain of MKP7. DISCUSS +51 66 in complex with protein_state In summary, we have resolved the structure of JNK1 in complex with the catalytic domain of MKP7. DISCUSS +71 87 catalytic domain structure_element In summary, we have resolved the structure of JNK1 in complex with the catalytic domain of MKP7. DISCUSS +91 95 MKP7 protein In summary, we have resolved the structure of JNK1 in complex with the catalytic domain of MKP7. DISCUSS +5 14 structure evidence This structure reveals an FXF-docking interaction mode between MAPK and MKP. DISCUSS +26 54 FXF-docking interaction mode site This structure reveals an FXF-docking interaction mode between MAPK and MKP. DISCUSS +63 67 MAPK protein_type This structure reveals an FXF-docking interaction mode between MAPK and MKP. DISCUSS +72 75 MKP protein_type This structure reveals an FXF-docking interaction mode between MAPK and MKP. DISCUSS +13 41 biochemical characterization experimental_method Results from biochemical characterization of the Phe285 and Phe287 MKP7 mutants combined with structural information support the conclusion that the two Phe residues serve different roles in the catalytic reaction. DISCUSS +49 55 Phe285 residue_name_number Results from biochemical characterization of the Phe285 and Phe287 MKP7 mutants combined with structural information support the conclusion that the two Phe residues serve different roles in the catalytic reaction. DISCUSS +60 66 Phe287 residue_name_number Results from biochemical characterization of the Phe285 and Phe287 MKP7 mutants combined with structural information support the conclusion that the two Phe residues serve different roles in the catalytic reaction. DISCUSS +67 71 MKP7 protein Results from biochemical characterization of the Phe285 and Phe287 MKP7 mutants combined with structural information support the conclusion that the two Phe residues serve different roles in the catalytic reaction. DISCUSS +72 79 mutants protein_state Results from biochemical characterization of the Phe285 and Phe287 MKP7 mutants combined with structural information support the conclusion that the two Phe residues serve different roles in the catalytic reaction. DISCUSS +94 116 structural information evidence Results from biochemical characterization of the Phe285 and Phe287 MKP7 mutants combined with structural information support the conclusion that the two Phe residues serve different roles in the catalytic reaction. DISCUSS +153 156 Phe residue_name Results from biochemical characterization of the Phe285 and Phe287 MKP7 mutants combined with structural information support the conclusion that the two Phe residues serve different roles in the catalytic reaction. DISCUSS +0 6 Phe285 residue_name_number Phe285 is essential for JNK1 substrate binding, whereas Phe287 plays a role for the precise alignment of active-site residues, which are important for transition-state stabilization. DISCUSS +24 28 JNK1 protein Phe285 is essential for JNK1 substrate binding, whereas Phe287 plays a role for the precise alignment of active-site residues, which are important for transition-state stabilization. DISCUSS +56 62 Phe287 residue_name_number Phe285 is essential for JNK1 substrate binding, whereas Phe287 plays a role for the precise alignment of active-site residues, which are important for transition-state stabilization. DISCUSS +105 125 active-site residues site Phe285 is essential for JNK1 substrate binding, whereas Phe287 plays a role for the precise alignment of active-site residues, which are important for transition-state stabilization. DISCUSS +22 36 FXF-type motif structure_element This newly identified FXF-type motif is present in all MKPs, except that the residue at the first position in MKP5 is an equivalent hydrophobic leucine residue (see also Fig. 7f,g), suggesting that these two Phe residues would play a similar role in facilitating substrate recognition and catalysis, respectively. DISCUSS +55 59 MKPs protein_type This newly identified FXF-type motif is present in all MKPs, except that the residue at the first position in MKP5 is an equivalent hydrophobic leucine residue (see also Fig. 7f,g), suggesting that these two Phe residues would play a similar role in facilitating substrate recognition and catalysis, respectively. DISCUSS +110 114 MKP5 protein This newly identified FXF-type motif is present in all MKPs, except that the residue at the first position in MKP5 is an equivalent hydrophobic leucine residue (see also Fig. 7f,g), suggesting that these two Phe residues would play a similar role in facilitating substrate recognition and catalysis, respectively. DISCUSS +144 151 leucine residue_name This newly identified FXF-type motif is present in all MKPs, except that the residue at the first position in MKP5 is an equivalent hydrophobic leucine residue (see also Fig. 7f,g), suggesting that these two Phe residues would play a similar role in facilitating substrate recognition and catalysis, respectively. DISCUSS +208 211 Phe residue_name This newly identified FXF-type motif is present in all MKPs, except that the residue at the first position in MKP5 is an equivalent hydrophobic leucine residue (see also Fig. 7f,g), suggesting that these two Phe residues would play a similar role in facilitating substrate recognition and catalysis, respectively. DISCUSS +24 27 MKP protein_type An important feature of MKP–JNK1 interactions is that MKP7 or MKP5 only interact with the F-site of JNK1. DISCUSS +28 32 JNK1 protein An important feature of MKP–JNK1 interactions is that MKP7 or MKP5 only interact with the F-site of JNK1. DISCUSS +54 58 MKP7 protein An important feature of MKP–JNK1 interactions is that MKP7 or MKP5 only interact with the F-site of JNK1. DISCUSS +62 66 MKP5 protein An important feature of MKP–JNK1 interactions is that MKP7 or MKP5 only interact with the F-site of JNK1. DISCUSS +90 96 F-site site An important feature of MKP–JNK1 interactions is that MKP7 or MKP5 only interact with the F-site of JNK1. DISCUSS +100 104 JNK1 protein An important feature of MKP–JNK1 interactions is that MKP7 or MKP5 only interact with the F-site of JNK1. DISCUSS +33 37 JNK1 protein One possible explanation is that JNK1 needs to use the D-site to interact with JIP-1, a scaffold protein for JNK signalling. DISCUSS +55 61 D-site site One possible explanation is that JNK1 needs to use the D-site to interact with JIP-1, a scaffold protein for JNK signalling. DISCUSS +79 84 JIP-1 protein One possible explanation is that JNK1 needs to use the D-site to interact with JIP-1, a scaffold protein for JNK signalling. DISCUSS +109 112 JNK protein_type One possible explanation is that JNK1 needs to use the D-site to interact with JIP-1, a scaffold protein for JNK signalling. DISCUSS +15 33 JNK-binding domain structure_element The N-terminal JNK-binding domain of JIP-1 interacts with the D-site on JNK and this interaction is required for JIP-1-mediated enhancement of JNK activation. DISCUSS +37 42 JIP-1 protein The N-terminal JNK-binding domain of JIP-1 interacts with the D-site on JNK and this interaction is required for JIP-1-mediated enhancement of JNK activation. DISCUSS +62 68 D-site site The N-terminal JNK-binding domain of JIP-1 interacts with the D-site on JNK and this interaction is required for JIP-1-mediated enhancement of JNK activation. DISCUSS +72 75 JNK protein_type The N-terminal JNK-binding domain of JIP-1 interacts with the D-site on JNK and this interaction is required for JIP-1-mediated enhancement of JNK activation. DISCUSS +113 118 JIP-1 protein The N-terminal JNK-binding domain of JIP-1 interacts with the D-site on JNK and this interaction is required for JIP-1-mediated enhancement of JNK activation. DISCUSS +143 146 JNK protein_type The N-terminal JNK-binding domain of JIP-1 interacts with the D-site on JNK and this interaction is required for JIP-1-mediated enhancement of JNK activation. DISCUSS +13 18 JIP-1 protein In addition, JIP-1 can also associate with MKP7 via the C-terminal region of MKP7 (ref.). DISCUSS +43 47 MKP7 protein In addition, JIP-1 can also associate with MKP7 via the C-terminal region of MKP7 (ref.). DISCUSS +56 73 C-terminal region structure_element In addition, JIP-1 can also associate with MKP7 via the C-terminal region of MKP7 (ref.). DISCUSS +77 81 MKP7 protein In addition, JIP-1 can also associate with MKP7 via the C-terminal region of MKP7 (ref.). DISCUSS +5 9 MKP7 protein When MKP7 is bound to JIP-1, it reduces JNK activation, leading to reduced phosphorylation of the JNK target c-Jun. DISCUSS +13 21 bound to protein_state When MKP7 is bound to JIP-1, it reduces JNK activation, leading to reduced phosphorylation of the JNK target c-Jun. DISCUSS +22 27 JIP-1 protein When MKP7 is bound to JIP-1, it reduces JNK activation, leading to reduced phosphorylation of the JNK target c-Jun. DISCUSS +40 43 JNK protein_type When MKP7 is bound to JIP-1, it reduces JNK activation, leading to reduced phosphorylation of the JNK target c-Jun. DISCUSS +98 101 JNK protein_type When MKP7 is bound to JIP-1, it reduces JNK activation, leading to reduced phosphorylation of the JNK target c-Jun. DISCUSS +109 114 c-Jun protein_type When MKP7 is bound to JIP-1, it reduces JNK activation, leading to reduced phosphorylation of the JNK target c-Jun. DISCUSS +10 41 biochemical and structural data evidence Thus, our biochemical and structural data allow us to present a model for the JNK1–JIP-1–MKP7 ternary complex and provide an important insight into the assembly and function of JNK signalling modules (Supplementary Fig. 6). DISCUSS +78 93 JNK1–JIP-1–MKP7 complex_assembly Thus, our biochemical and structural data allow us to present a model for the JNK1–JIP-1–MKP7 ternary complex and provide an important insight into the assembly and function of JNK signalling modules (Supplementary Fig. 6). DISCUSS +177 180 JNK protein_type Thus, our biochemical and structural data allow us to present a model for the JNK1–JIP-1–MKP7 ternary complex and provide an important insight into the assembly and function of JNK signalling modules (Supplementary Fig. 6). DISCUSS +13 18 human species The cDNAs of human MKP7 and MKP5 were kindly provided by Dr Mathijs Baens (University of Leuven) and Dr Eisuke Nishida (Kyoto University), respectively. METHODS +13 18 human species The cDNAs of human ASK1, MKK4, MKK7 and JNK1 were kindly provided by Dr Zhenguo Wu (Hong Kong University of Science and Technology). METHODS +4 9 human species The human full-length JNK1, MKK4, MKK7 and the kinase domain of ASK1 (659–951) were cloned into pGEX4T-2, pET15b and/or pET21b vectors to produce a GST- or His-tagged protein. METHODS +67 83 catalytic domain structure_element The crystal structure of unphosphorylated JNK1 in complex with the catalytic domain of MKP7 was refined to 2.4 Å resolution. METHODS +7 17 structures evidence Domain structures of ten human MKPs and the atypical VHR. FIG +25 30 human species Domain structures of ten human MKPs and the atypical VHR. FIG +31 35 MKPs protein_type Domain structures of ten human MKPs and the atypical VHR. FIG +53 56 VHR protein Domain structures of ten human MKPs and the atypical VHR. FIG +45 54 structure evidence On the basis of sequence similarity, protein structure, substrate specificity and subcellular localization, the ten members of MKP family can be divided into three groups. FIG +127 137 MKP family protein_type On the basis of sequence similarity, protein structure, substrate specificity and subcellular localization, the ten members of MKP family can be divided into three groups. FIG +30 34 MKP1 protein The first subfamily comprises MKP1, MKP2, PAC1 and hVH3, which are inducible nuclear phosphatases and can dephosphorylate ERK (and JNK, p38) MAPKs. FIG +36 40 MKP2 protein The first subfamily comprises MKP1, MKP2, PAC1 and hVH3, which are inducible nuclear phosphatases and can dephosphorylate ERK (and JNK, p38) MAPKs. FIG +42 46 PAC1 protein The first subfamily comprises MKP1, MKP2, PAC1 and hVH3, which are inducible nuclear phosphatases and can dephosphorylate ERK (and JNK, p38) MAPKs. FIG +51 55 hVH3 protein The first subfamily comprises MKP1, MKP2, PAC1 and hVH3, which are inducible nuclear phosphatases and can dephosphorylate ERK (and JNK, p38) MAPKs. FIG +67 76 inducible protein_state The first subfamily comprises MKP1, MKP2, PAC1 and hVH3, which are inducible nuclear phosphatases and can dephosphorylate ERK (and JNK, p38) MAPKs. FIG +77 97 nuclear phosphatases protein_type The first subfamily comprises MKP1, MKP2, PAC1 and hVH3, which are inducible nuclear phosphatases and can dephosphorylate ERK (and JNK, p38) MAPKs. FIG +122 125 ERK protein_type The first subfamily comprises MKP1, MKP2, PAC1 and hVH3, which are inducible nuclear phosphatases and can dephosphorylate ERK (and JNK, p38) MAPKs. FIG +131 134 JNK protein_type The first subfamily comprises MKP1, MKP2, PAC1 and hVH3, which are inducible nuclear phosphatases and can dephosphorylate ERK (and JNK, p38) MAPKs. FIG +136 139 p38 protein_type The first subfamily comprises MKP1, MKP2, PAC1 and hVH3, which are inducible nuclear phosphatases and can dephosphorylate ERK (and JNK, p38) MAPKs. FIG +141 146 MAPKs protein_type The first subfamily comprises MKP1, MKP2, PAC1 and hVH3, which are inducible nuclear phosphatases and can dephosphorylate ERK (and JNK, p38) MAPKs. FIG +30 34 MKP3 protein The second subfamily contains MKP3, MKP4 and MKPX, which are cytoplasmic ERK-specific MKPs. FIG +36 40 MKP4 protein The second subfamily contains MKP3, MKP4 and MKPX, which are cytoplasmic ERK-specific MKPs. FIG +45 49 MKPX protein The second subfamily contains MKP3, MKP4 and MKPX, which are cytoplasmic ERK-specific MKPs. FIG +73 90 ERK-specific MKPs protein_type The second subfamily contains MKP3, MKP4 and MKPX, which are cytoplasmic ERK-specific MKPs. FIG +30 34 MKP5 protein The third subfamily comprises MKP5, MKP7 and hVH5, which were located in both nucleus and cytoplasm, and selectively inactivate JNK and p38. FIG +36 40 MKP7 protein The third subfamily comprises MKP5, MKP7 and hVH5, which were located in both nucleus and cytoplasm, and selectively inactivate JNK and p38. FIG +45 49 hVH5 protein The third subfamily comprises MKP5, MKP7 and hVH5, which were located in both nucleus and cytoplasm, and selectively inactivate JNK and p38. FIG +128 131 JNK protein_type The third subfamily comprises MKP5, MKP7 and hVH5, which were located in both nucleus and cytoplasm, and selectively inactivate JNK and p38. FIG +136 139 p38 protein_type The third subfamily comprises MKP5, MKP7 and hVH5, which were located in both nucleus and cytoplasm, and selectively inactivate JNK and p38. FIG +4 8 MKPs protein_type All MKPs contain both the CD and KBD domains, whereas VHR, an atypical MKP, only contains a highly conserved catalytic domain. FIG +26 28 CD structure_element All MKPs contain both the CD and KBD domains, whereas VHR, an atypical MKP, only contains a highly conserved catalytic domain. FIG +33 36 KBD structure_element All MKPs contain both the CD and KBD domains, whereas VHR, an atypical MKP, only contains a highly conserved catalytic domain. FIG +54 57 VHR protein All MKPs contain both the CD and KBD domains, whereas VHR, an atypical MKP, only contains a highly conserved catalytic domain. FIG +71 74 MKP protein_type All MKPs contain both the CD and KBD domains, whereas VHR, an atypical MKP, only contains a highly conserved catalytic domain. FIG +92 108 highly conserved protein_state All MKPs contain both the CD and KBD domains, whereas VHR, an atypical MKP, only contains a highly conserved catalytic domain. FIG +109 125 catalytic domain structure_element All MKPs contain both the CD and KBD domains, whereas VHR, an atypical MKP, only contains a highly conserved catalytic domain. FIG +19 21 CD structure_element In addition to the CD and KBD, MKP7 contains a unique long C-terminal region that contains NES, NLS and PEST motifs, which has no effect on the binding ability and phosphatase activity of MKP7 toward MAPKs. FIG +26 29 KBD structure_element In addition to the CD and KBD, MKP7 contains a unique long C-terminal region that contains NES, NLS and PEST motifs, which has no effect on the binding ability and phosphatase activity of MKP7 toward MAPKs. FIG +31 35 MKP7 protein In addition to the CD and KBD, MKP7 contains a unique long C-terminal region that contains NES, NLS and PEST motifs, which has no effect on the binding ability and phosphatase activity of MKP7 toward MAPKs. FIG +59 76 C-terminal region structure_element In addition to the CD and KBD, MKP7 contains a unique long C-terminal region that contains NES, NLS and PEST motifs, which has no effect on the binding ability and phosphatase activity of MKP7 toward MAPKs. FIG +91 94 NES structure_element In addition to the CD and KBD, MKP7 contains a unique long C-terminal region that contains NES, NLS and PEST motifs, which has no effect on the binding ability and phosphatase activity of MKP7 toward MAPKs. FIG +96 99 NLS structure_element In addition to the CD and KBD, MKP7 contains a unique long C-terminal region that contains NES, NLS and PEST motifs, which has no effect on the binding ability and phosphatase activity of MKP7 toward MAPKs. FIG +104 115 PEST motifs structure_element In addition to the CD and KBD, MKP7 contains a unique long C-terminal region that contains NES, NLS and PEST motifs, which has no effect on the binding ability and phosphatase activity of MKP7 toward MAPKs. FIG +188 192 MKP7 protein In addition to the CD and KBD, MKP7 contains a unique long C-terminal region that contains NES, NLS and PEST motifs, which has no effect on the binding ability and phosphatase activity of MKP7 toward MAPKs. FIG +200 205 MAPKs protein_type In addition to the CD and KBD, MKP7 contains a unique long C-terminal region that contains NES, NLS and PEST motifs, which has no effect on the binding ability and phosphatase activity of MKP7 toward MAPKs. FIG +0 3 NES structure_element NES, nuclear export signal; NLS, nuclear localization signal; PEST, C-terminal sequence rich in prolines, glutamates, serines and threonines. FIG +5 26 nuclear export signal structure_element NES, nuclear export signal; NLS, nuclear localization signal; PEST, C-terminal sequence rich in prolines, glutamates, serines and threonines. FIG +28 31 NLS structure_element NES, nuclear export signal; NLS, nuclear localization signal; PEST, C-terminal sequence rich in prolines, glutamates, serines and threonines. FIG +33 60 nuclear localization signal structure_element NES, nuclear export signal; NLS, nuclear localization signal; PEST, C-terminal sequence rich in prolines, glutamates, serines and threonines. FIG +62 66 PEST structure_element NES, nuclear export signal; NLS, nuclear localization signal; PEST, C-terminal sequence rich in prolines, glutamates, serines and threonines. FIG +68 92 C-terminal sequence rich structure_element NES, nuclear export signal; NLS, nuclear localization signal; PEST, C-terminal sequence rich in prolines, glutamates, serines and threonines. FIG +96 104 prolines residue_name NES, nuclear export signal; NLS, nuclear localization signal; PEST, C-terminal sequence rich in prolines, glutamates, serines and threonines. FIG +106 116 glutamates residue_name NES, nuclear export signal; NLS, nuclear localization signal; PEST, C-terminal sequence rich in prolines, glutamates, serines and threonines. FIG +118 125 serines residue_name NES, nuclear export signal; NLS, nuclear localization signal; PEST, C-terminal sequence rich in prolines, glutamates, serines and threonines. FIG +130 140 threonines residue_name NES, nuclear export signal; NLS, nuclear localization signal; PEST, C-terminal sequence rich in prolines, glutamates, serines and threonines. FIG +0 4 MKP7 protein MKP7-CD is crucial for JNK1 binding and enzyme catalysis. FIG +5 7 CD structure_element MKP7-CD is crucial for JNK1 binding and enzyme catalysis. FIG +23 27 JNK1 protein MKP7-CD is crucial for JNK1 binding and enzyme catalysis. FIG +27 32 human species (a) Domain organization of human MKP7 and JNK1. FIG +33 37 MKP7 protein (a) Domain organization of human MKP7 and JNK1. FIG +42 46 JNK1 protein (a) Domain organization of human MKP7 and JNK1. FIG +4 7 KBD structure_element The KBD and CD of MKP7 are shown in green and blue, and the N-lobe and C-lobe of JNK1 are coloured in lemon and yellow, respectively. FIG +12 14 CD structure_element The KBD and CD of MKP7 are shown in green and blue, and the N-lobe and C-lobe of JNK1 are coloured in lemon and yellow, respectively. FIG +18 22 MKP7 protein The KBD and CD of MKP7 are shown in green and blue, and the N-lobe and C-lobe of JNK1 are coloured in lemon and yellow, respectively. FIG +60 66 N-lobe structure_element The KBD and CD of MKP7 are shown in green and blue, and the N-lobe and C-lobe of JNK1 are coloured in lemon and yellow, respectively. FIG +71 77 C-lobe structure_element The KBD and CD of MKP7 are shown in green and blue, and the N-lobe and C-lobe of JNK1 are coloured in lemon and yellow, respectively. FIG +81 85 JNK1 protein The KBD and CD of MKP7 are shown in green and blue, and the N-lobe and C-lobe of JNK1 are coloured in lemon and yellow, respectively. FIG +87 112 Plots of initial velocity evidence The colour scheme is the same in the following figures unless indicated otherwise. (b) Plots of initial velocity of the MKP7-catalysed reaction versus phospho-JNK1 concentration. FIG +120 124 MKP7 protein The colour scheme is the same in the following figures unless indicated otherwise. (b) Plots of initial velocity of the MKP7-catalysed reaction versus phospho-JNK1 concentration. FIG +151 158 phospho ptm The colour scheme is the same in the following figures unless indicated otherwise. (b) Plots of initial velocity of the MKP7-catalysed reaction versus phospho-JNK1 concentration. FIG +159 163 JNK1 protein The colour scheme is the same in the following figures unless indicated otherwise. (b) Plots of initial velocity of the MKP7-catalysed reaction versus phospho-JNK1 concentration. FIG +36 59 Gel filtration analysis experimental_method The error bars represent s.e.m. (c) Gel filtration analysis for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +79 83 JNK1 protein The error bars represent s.e.m. (c) Gel filtration analysis for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +89 93 MKP7 protein The error bars represent s.e.m. (c) Gel filtration analysis for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +94 96 CD structure_element The error bars represent s.e.m. (c) Gel filtration analysis for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +101 105 MKP7 protein The error bars represent s.e.m. (c) Gel filtration analysis for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +106 109 KBD structure_element The error bars represent s.e.m. (c) Gel filtration analysis for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +4 32 GST-mediated pull-down assay experimental_method (d) GST-mediated pull-down assay for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +52 56 JNK1 protein (d) GST-mediated pull-down assay for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +62 66 MKP7 protein (d) GST-mediated pull-down assay for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +67 69 CD structure_element (d) GST-mediated pull-down assay for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +74 78 MKP7 protein (d) GST-mediated pull-down assay for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +79 82 KBD structure_element (d) GST-mediated pull-down assay for interaction of JNK1 with MKP7-CD and MKP7-KBD. FIG +33 43 affinities evidence The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +47 51 MKP7 protein The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +52 54 CD structure_element The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +59 63 MKP7 protein The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +64 67 KBD structure_element The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +71 75 JNK1 protein The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +86 94 affinity evidence The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +98 102 MKP7 protein The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +103 105 CD structure_element The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +174 178 MKP7 protein The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +183 187 JNK1 protein The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +194 214 GST pull-down assays experimental_method The top panel shows the relative affinities of MKP7-CD and MKP7-KBD to JNK1, with the affinity of MKP7-CD defined as 100%; the middle panel is the electrophoretic pattern of MKP7 and JNK1 after GST pull-down assays. FIG +23 27 MKP7 protein The protein amounts of MKP7 used are shown at the bottom. FIG +0 9 Structure evidence Structure of JNK1 in complex with MKP7-CD. FIG +13 17 JNK1 protein Structure of JNK1 in complex with MKP7-CD. FIG +18 33 in complex with protein_state Structure of JNK1 in complex with MKP7-CD. FIG +34 38 MKP7 protein Structure of JNK1 in complex with MKP7-CD. FIG +39 41 CD structure_element Structure of JNK1 in complex with MKP7-CD. FIG +22 34 JNK1–MKP7-CD complex_assembly (a) Ribbon diagram of JNK1–MKP7-CD complex in two views related by a 45° rotation around a vertical axis. (b) Structure of MKP7-CD with its active site highlight in cyan. FIG +110 119 Structure evidence (a) Ribbon diagram of JNK1–MKP7-CD complex in two views related by a 45° rotation around a vertical axis. (b) Structure of MKP7-CD with its active site highlight in cyan. FIG +123 127 MKP7 protein (a) Ribbon diagram of JNK1–MKP7-CD complex in two views related by a 45° rotation around a vertical axis. (b) Structure of MKP7-CD with its active site highlight in cyan. FIG +128 130 CD structure_element (a) Ribbon diagram of JNK1–MKP7-CD complex in two views related by a 45° rotation around a vertical axis. (b) Structure of MKP7-CD with its active site highlight in cyan. FIG +140 151 active site site (a) Ribbon diagram of JNK1–MKP7-CD complex in two views related by a 45° rotation around a vertical axis. (b) Structure of MKP7-CD with its active site highlight in cyan. FIG +4 19 2Fo−Fc omit map evidence The 2Fo−Fc omit map (contoured at 1.5σ) for the P-loop of MKP7-CD is shown at inset of b. (c) Structure of VHR with its active site highlighted in marine blue. (d) Close-up view of the JNK1–MKP7 interface showing interacting amino acids of JNK1 (orange) and MKP7-CD (cyan). FIG +48 54 P-loop structure_element The 2Fo−Fc omit map (contoured at 1.5σ) for the P-loop of MKP7-CD is shown at inset of b. (c) Structure of VHR with its active site highlighted in marine blue. (d) Close-up view of the JNK1–MKP7 interface showing interacting amino acids of JNK1 (orange) and MKP7-CD (cyan). FIG +58 62 MKP7 protein The 2Fo−Fc omit map (contoured at 1.5σ) for the P-loop of MKP7-CD is shown at inset of b. (c) Structure of VHR with its active site highlighted in marine blue. (d) Close-up view of the JNK1–MKP7 interface showing interacting amino acids of JNK1 (orange) and MKP7-CD (cyan). FIG +63 65 CD structure_element The 2Fo−Fc omit map (contoured at 1.5σ) for the P-loop of MKP7-CD is shown at inset of b. (c) Structure of VHR with its active site highlighted in marine blue. (d) Close-up view of the JNK1–MKP7 interface showing interacting amino acids of JNK1 (orange) and MKP7-CD (cyan). FIG +94 103 Structure evidence The 2Fo−Fc omit map (contoured at 1.5σ) for the P-loop of MKP7-CD is shown at inset of b. (c) Structure of VHR with its active site highlighted in marine blue. (d) Close-up view of the JNK1–MKP7 interface showing interacting amino acids of JNK1 (orange) and MKP7-CD (cyan). FIG +107 110 VHR protein The 2Fo−Fc omit map (contoured at 1.5σ) for the P-loop of MKP7-CD is shown at inset of b. (c) Structure of VHR with its active site highlighted in marine blue. (d) Close-up view of the JNK1–MKP7 interface showing interacting amino acids of JNK1 (orange) and MKP7-CD (cyan). FIG +120 131 active site site The 2Fo−Fc omit map (contoured at 1.5σ) for the P-loop of MKP7-CD is shown at inset of b. (c) Structure of VHR with its active site highlighted in marine blue. (d) Close-up view of the JNK1–MKP7 interface showing interacting amino acids of JNK1 (orange) and MKP7-CD (cyan). FIG +185 204 JNK1–MKP7 interface site The 2Fo−Fc omit map (contoured at 1.5σ) for the P-loop of MKP7-CD is shown at inset of b. (c) Structure of VHR with its active site highlighted in marine blue. (d) Close-up view of the JNK1–MKP7 interface showing interacting amino acids of JNK1 (orange) and MKP7-CD (cyan). FIG +240 244 JNK1 protein The 2Fo−Fc omit map (contoured at 1.5σ) for the P-loop of MKP7-CD is shown at inset of b. (c) Structure of VHR with its active site highlighted in marine blue. (d) Close-up view of the JNK1–MKP7 interface showing interacting amino acids of JNK1 (orange) and MKP7-CD (cyan). FIG +258 262 MKP7 protein The 2Fo−Fc omit map (contoured at 1.5σ) for the P-loop of MKP7-CD is shown at inset of b. (c) Structure of VHR with its active site highlighted in marine blue. (d) Close-up view of the JNK1–MKP7 interface showing interacting amino acids of JNK1 (orange) and MKP7-CD (cyan). FIG +263 265 CD structure_element The 2Fo−Fc omit map (contoured at 1.5σ) for the P-loop of MKP7-CD is shown at inset of b. (c) Structure of VHR with its active site highlighted in marine blue. (d) Close-up view of the JNK1–MKP7 interface showing interacting amino acids of JNK1 (orange) and MKP7-CD (cyan). FIG +4 8 JNK1 protein The JNK1 is shown in surface representation coloured according to electrostatic potential (positive, blue; negative, red). FIG +4 24 Interaction networks site (e) Interaction networks mainly involving helices α4 and α5 from MKP7-CD, and αG and α2L14 of JNK1. FIG +42 49 helices structure_element (e) Interaction networks mainly involving helices α4 and α5 from MKP7-CD, and αG and α2L14 of JNK1. FIG +50 52 α4 structure_element (e) Interaction networks mainly involving helices α4 and α5 from MKP7-CD, and αG and α2L14 of JNK1. FIG +57 59 α5 structure_element (e) Interaction networks mainly involving helices α4 and α5 from MKP7-CD, and αG and α2L14 of JNK1. FIG +65 69 MKP7 protein (e) Interaction networks mainly involving helices α4 and α5 from MKP7-CD, and αG and α2L14 of JNK1. FIG +70 72 CD structure_element (e) Interaction networks mainly involving helices α4 and α5 from MKP7-CD, and αG and α2L14 of JNK1. FIG +78 80 αG structure_element (e) Interaction networks mainly involving helices α4 and α5 from MKP7-CD, and αG and α2L14 of JNK1. FIG +85 90 α2L14 structure_element (e) Interaction networks mainly involving helices α4 and α5 from MKP7-CD, and αG and α2L14 of JNK1. FIG +94 98 JNK1 protein (e) Interaction networks mainly involving helices α4 and α5 from MKP7-CD, and αG and α2L14 of JNK1. FIG +0 4 MKP7 protein MKP7-CD is shown in surface representation coloured according to electrostatic potential (positive, blue; negative, red). FIG +5 7 CD structure_element MKP7-CD is shown in surface representation coloured according to electrostatic potential (positive, blue; negative, red). FIG +28 46 polar interactions bond_interaction Blue dashed lines represent polar interactions. FIG +28 46 polar interactions bond_interaction Blue dashed lines represent polar interactions. FIG +8 23 2Fo−Fc omit map evidence (f) The 2Fo−Fc omit map (contoured at 1.5σ) clearly shows electron density for the 285FNFL288 segment of MKP7-CD. FIG +58 74 electron density evidence (f) The 2Fo−Fc omit map (contoured at 1.5σ) clearly shows electron density for the 285FNFL288 segment of MKP7-CD. FIG +83 101 285FNFL288 segment structure_element (f) The 2Fo−Fc omit map (contoured at 1.5σ) clearly shows electron density for the 285FNFL288 segment of MKP7-CD. FIG +105 109 MKP7 protein (f) The 2Fo−Fc omit map (contoured at 1.5σ) clearly shows electron density for the 285FNFL288 segment of MKP7-CD. FIG +110 112 CD structure_element (f) The 2Fo−Fc omit map (contoured at 1.5σ) clearly shows electron density for the 285FNFL288 segment of MKP7-CD. FIG +0 19 Mutational analysis experimental_method Mutational analysis on interactions between MKP7-CD and JNK1. FIG +44 48 MKP7 protein Mutational analysis on interactions between MKP7-CD and JNK1. FIG +49 51 CD structure_element Mutational analysis on interactions between MKP7-CD and JNK1. FIG +56 60 JNK1 protein Mutational analysis on interactions between MKP7-CD and JNK1. FIG +28 32 MKP7 protein (a) Effects of mutations in MKP7-CD on the JNK1 dephosphorylation (mean±s.e.m., n=3). FIG +33 35 CD structure_element (a) Effects of mutations in MKP7-CD on the JNK1 dephosphorylation (mean±s.e.m., n=3). FIG +43 47 JNK1 protein (a) Effects of mutations in MKP7-CD on the JNK1 dephosphorylation (mean±s.e.m., n=3). FIG +48 65 dephosphorylation ptm (a) Effects of mutations in MKP7-CD on the JNK1 dephosphorylation (mean±s.e.m., n=3). FIG +21 57 hydrophobic and hydrophilic contacts bond_interaction Residues involved in hydrophobic and hydrophilic contacts are coloured in red and blue, respectively. (b) Gel filtration analysis for interaction of JNK1 with MKP7-CD mutant F285D. FIG +106 129 Gel filtration analysis experimental_method Residues involved in hydrophobic and hydrophilic contacts are coloured in red and blue, respectively. (b) Gel filtration analysis for interaction of JNK1 with MKP7-CD mutant F285D. FIG +149 153 JNK1 protein Residues involved in hydrophobic and hydrophilic contacts are coloured in red and blue, respectively. (b) Gel filtration analysis for interaction of JNK1 with MKP7-CD mutant F285D. FIG +159 163 MKP7 protein Residues involved in hydrophobic and hydrophilic contacts are coloured in red and blue, respectively. (b) Gel filtration analysis for interaction of JNK1 with MKP7-CD mutant F285D. FIG +164 166 CD structure_element Residues involved in hydrophobic and hydrophilic contacts are coloured in red and blue, respectively. (b) Gel filtration analysis for interaction of JNK1 with MKP7-CD mutant F285D. FIG +167 173 mutant protein_state Residues involved in hydrophobic and hydrophilic contacts are coloured in red and blue, respectively. (b) Gel filtration analysis for interaction of JNK1 with MKP7-CD mutant F285D. FIG +174 179 F285D mutant Residues involved in hydrophobic and hydrophilic contacts are coloured in red and blue, respectively. (b) Gel filtration analysis for interaction of JNK1 with MKP7-CD mutant F285D. FIG +0 6 Mutant protein_state Mutant F285D and JNK1 were eluted as monomers, with the molecular masses of ∼17 and 44 kDa, respectively. FIG +7 12 F285D mutant Mutant F285D and JNK1 were eluted as monomers, with the molecular masses of ∼17 and 44 kDa, respectively. FIG +17 21 JNK1 protein Mutant F285D and JNK1 were eluted as monomers, with the molecular masses of ∼17 and 44 kDa, respectively. FIG +37 45 monomers oligomeric_state Mutant F285D and JNK1 were eluted as monomers, with the molecular masses of ∼17 and 44 kDa, respectively. FIG +28 37 wild-type protein_state However, in contrast to the wild-type MKP7-CD, mutant F285D did not co-migrate with JNK1. FIG +38 42 MKP7 protein However, in contrast to the wild-type MKP7-CD, mutant F285D did not co-migrate with JNK1. FIG +43 45 CD structure_element However, in contrast to the wild-type MKP7-CD, mutant F285D did not co-migrate with JNK1. FIG +47 53 mutant protein_state However, in contrast to the wild-type MKP7-CD, mutant F285D did not co-migrate with JNK1. FIG +54 59 F285D mutant However, in contrast to the wild-type MKP7-CD, mutant F285D did not co-migrate with JNK1. FIG +84 88 JNK1 protein However, in contrast to the wild-type MKP7-CD, mutant F285D did not co-migrate with JNK1. FIG +4 20 Pull-down assays experimental_method (c) Pull-down assays of MKP7-CD by GST-tagged JNK1 mutants. FIG +24 28 MKP7 protein (c) Pull-down assays of MKP7-CD by GST-tagged JNK1 mutants. FIG +29 31 CD structure_element (c) Pull-down assays of MKP7-CD by GST-tagged JNK1 mutants. FIG +35 45 GST-tagged protein_state (c) Pull-down assays of MKP7-CD by GST-tagged JNK1 mutants. FIG +46 50 JNK1 protein (c) Pull-down assays of MKP7-CD by GST-tagged JNK1 mutants. FIG +51 58 mutants protein_state (c) Pull-down assays of MKP7-CD by GST-tagged JNK1 mutants. FIG +33 43 affinities evidence The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +47 51 MKP7 protein The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +52 54 CD structure_element The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +58 62 JNK1 protein The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +63 70 mutants protein_state The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +81 89 affinity evidence The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +93 102 wild-type protein_state The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +103 107 JNK1 protein The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +176 180 MKP7 protein The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +181 183 CD structure_element The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +188 192 JNK1 protein The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +193 200 mutants protein_state The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +207 227 GST pull-down assays experimental_method The top panel shows the relative affinities of MKP7-CD to JNK1 mutants, with the affinity of wild-type JNK1 defined as 100%, the middle panel is the electrophoretic pattern of MKP7-CD and JNK1 mutants after GST pull-down assays. FIG +23 27 MKP7 protein The protein amounts of MKP7-CD used are shown at the bottom. (d) Circular dichroism spectra for MKP7-CD wild type and mutants. FIG +28 30 CD structure_element The protein amounts of MKP7-CD used are shown at the bottom. (d) Circular dichroism spectra for MKP7-CD wild type and mutants. FIG +65 83 Circular dichroism experimental_method The protein amounts of MKP7-CD used are shown at the bottom. (d) Circular dichroism spectra for MKP7-CD wild type and mutants. FIG +84 91 spectra evidence The protein amounts of MKP7-CD used are shown at the bottom. (d) Circular dichroism spectra for MKP7-CD wild type and mutants. FIG +96 100 MKP7 protein The protein amounts of MKP7-CD used are shown at the bottom. (d) Circular dichroism spectra for MKP7-CD wild type and mutants. FIG +101 103 CD structure_element The protein amounts of MKP7-CD used are shown at the bottom. (d) Circular dichroism spectra for MKP7-CD wild type and mutants. FIG +104 113 wild type protein_state The protein amounts of MKP7-CD used are shown at the bottom. (d) Circular dichroism spectra for MKP7-CD wild type and mutants. FIG +118 125 mutants protein_state The protein amounts of MKP7-CD used are shown at the bottom. (d) Circular dichroism spectra for MKP7-CD wild type and mutants. FIG +48 66 Circular dichroism experimental_method Measurements were averaged for three scans. (e) Circular dichroism spectra for JNK1 wild type and mutants. FIG +67 74 spectra evidence Measurements were averaged for three scans. (e) Circular dichroism spectra for JNK1 wild type and mutants. FIG +79 83 JNK1 protein Measurements were averaged for three scans. (e) Circular dichroism spectra for JNK1 wild type and mutants. FIG +84 93 wild type protein_state Measurements were averaged for three scans. (e) Circular dichroism spectra for JNK1 wild type and mutants. FIG +98 105 mutants protein_state Measurements were averaged for three scans. (e) Circular dichroism spectra for JNK1 wild type and mutants. FIG +15 24 mutations experimental_method (f) Effects of mutations in MKP7-CD on the pNPP hydrolysis reaction (mean±s.e.m., n=3). FIG +28 32 MKP7 protein (f) Effects of mutations in MKP7-CD on the pNPP hydrolysis reaction (mean±s.e.m., n=3). FIG +33 35 CD structure_element (f) Effects of mutations in MKP7-CD on the pNPP hydrolysis reaction (mean±s.e.m., n=3). FIG +43 47 pNPP chemical (f) Effects of mutations in MKP7-CD on the pNPP hydrolysis reaction (mean±s.e.m., n=3). FIG +14 22 CDK2-KAP complex_assembly Comparison of CDK2-KAP and JNK1–MKP7-CD. FIG +27 39 JNK1–MKP7-CD complex_assembly Comparison of CDK2-KAP and JNK1–MKP7-CD. FIG +4 17 Superposition experimental_method (a) Superposition of the complex structures of CDK2-KAP (PDB 1FQ1) and JNK1–MKP7-CD. FIG +33 43 structures evidence (a) Superposition of the complex structures of CDK2-KAP (PDB 1FQ1) and JNK1–MKP7-CD. FIG +47 55 CDK2-KAP complex_assembly (a) Superposition of the complex structures of CDK2-KAP (PDB 1FQ1) and JNK1–MKP7-CD. FIG +71 83 JNK1–MKP7-CD complex_assembly (a) Superposition of the complex structures of CDK2-KAP (PDB 1FQ1) and JNK1–MKP7-CD. FIG +4 10 N-lobe structure_element The N-lobe and C-lobe of CDK2 are coloured in grey and pink, respectively, and KAP is coloured in green. FIG +15 21 C-lobe structure_element The N-lobe and C-lobe of CDK2 are coloured in grey and pink, respectively, and KAP is coloured in green. FIG +25 29 CDK2 protein The N-lobe and C-lobe of CDK2 are coloured in grey and pink, respectively, and KAP is coloured in green. FIG +79 82 KAP protein The N-lobe and C-lobe of CDK2 are coloured in grey and pink, respectively, and KAP is coloured in green. FIG +75 90 contact regions site The interactions between these two proteins consist of three discontinuous contact regions, centred at the multiple hydrogen bonds between the pThr160 of CDK2 and the active site of KAP (region I). FIG +116 130 hydrogen bonds bond_interaction The interactions between these two proteins consist of three discontinuous contact regions, centred at the multiple hydrogen bonds between the pThr160 of CDK2 and the active site of KAP (region I). FIG +143 150 pThr160 ptm The interactions between these two proteins consist of three discontinuous contact regions, centred at the multiple hydrogen bonds between the pThr160 of CDK2 and the active site of KAP (region I). FIG +154 158 CDK2 protein The interactions between these two proteins consist of three discontinuous contact regions, centred at the multiple hydrogen bonds between the pThr160 of CDK2 and the active site of KAP (region I). FIG +167 178 active site site The interactions between these two proteins consist of three discontinuous contact regions, centred at the multiple hydrogen bonds between the pThr160 of CDK2 and the active site of KAP (region I). FIG +182 185 KAP protein The interactions between these two proteins consist of three discontinuous contact regions, centred at the multiple hydrogen bonds between the pThr160 of CDK2 and the active site of KAP (region I). FIG +187 195 region I structure_element The interactions between these two proteins consist of three discontinuous contact regions, centred at the multiple hydrogen bonds between the pThr160 of CDK2 and the active site of KAP (region I). FIG +34 38 CDK2 protein Interestingly, the recognition of CDK2 by KAP is augmented by a similar interface as that observed in the complex of JNK1 and MKP7-CD (region II). FIG +42 45 KAP protein Interestingly, the recognition of CDK2 by KAP is augmented by a similar interface as that observed in the complex of JNK1 and MKP7-CD (region II). FIG +72 81 interface site Interestingly, the recognition of CDK2 by KAP is augmented by a similar interface as that observed in the complex of JNK1 and MKP7-CD (region II). FIG +117 121 JNK1 protein Interestingly, the recognition of CDK2 by KAP is augmented by a similar interface as that observed in the complex of JNK1 and MKP7-CD (region II). FIG +126 130 MKP7 protein Interestingly, the recognition of CDK2 by KAP is augmented by a similar interface as that observed in the complex of JNK1 and MKP7-CD (region II). FIG +131 133 CD structure_element Interestingly, the recognition of CDK2 by KAP is augmented by a similar interface as that observed in the complex of JNK1 and MKP7-CD (region II). FIG +135 144 region II structure_element Interestingly, the recognition of CDK2 by KAP is augmented by a similar interface as that observed in the complex of JNK1 and MKP7-CD (region II). FIG +33 52 auxiliary region II structure_element (b) Interactions networks at the auxiliary region II mainly involving helix α7 from KAP and the αG helix and following L14 loop of CDK2. FIG +70 75 helix structure_element (b) Interactions networks at the auxiliary region II mainly involving helix α7 from KAP and the αG helix and following L14 loop of CDK2. FIG +76 78 α7 structure_element (b) Interactions networks at the auxiliary region II mainly involving helix α7 from KAP and the αG helix and following L14 loop of CDK2. FIG +84 87 KAP protein (b) Interactions networks at the auxiliary region II mainly involving helix α7 from KAP and the αG helix and following L14 loop of CDK2. FIG +96 104 αG helix structure_element (b) Interactions networks at the auxiliary region II mainly involving helix α7 from KAP and the αG helix and following L14 loop of CDK2. FIG +119 127 L14 loop structure_element (b) Interactions networks at the auxiliary region II mainly involving helix α7 from KAP and the αG helix and following L14 loop of CDK2. FIG +131 135 CDK2 protein (b) Interactions networks at the auxiliary region II mainly involving helix α7 from KAP and the αG helix and following L14 loop of CDK2. FIG +4 8 CDK2 protein The CDK2 is shown in surface representation coloured according to the electrostatic potential (positive, blue; negative, red). FIG +12 15 KAP protein Residues of KAP and CDK2 are highlighted as green and red sticks, respectively. FIG +20 24 CDK2 protein Residues of KAP and CDK2 are highlighted as green and red sticks, respectively. FIG +81 86 helix structure_element One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +87 89 α6 structure_element One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +93 96 KAP protein One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +115 120 helix structure_element One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +121 123 α4 structure_element One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +127 131 MKP7 protein One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +132 134 CD structure_element One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +185 191 stable protein_state One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +192 203 heterodimer oligomeric_state One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +207 211 CDK2 protein One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +216 219 KAP protein One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +225 243 Sequence alignment experimental_method One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +251 274 JNK-interacting regions site One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +278 282 MKPs protein_type One remarkable difference between these two kinase-phosphatase complexes is that helix α6 of KAP (corresponding to helix α4 of MKP7-CD) plays little, if any, role in the formation of a stable heterodimer of CDK2 and KAP. (c) Sequence alignment of the JNK-interacting regions on MKPs. FIG +12 16 MKP7 protein Residues of MKP7-CD involved in JNK1 recognition are indicated by cyan asterisks, and the conserved FXF-motif is highlighted in cyan. FIG +17 19 CD structure_element Residues of MKP7-CD involved in JNK1 recognition are indicated by cyan asterisks, and the conserved FXF-motif is highlighted in cyan. FIG +32 36 JNK1 protein Residues of MKP7-CD involved in JNK1 recognition are indicated by cyan asterisks, and the conserved FXF-motif is highlighted in cyan. FIG +90 99 conserved protein_state Residues of MKP7-CD involved in JNK1 recognition are indicated by cyan asterisks, and the conserved FXF-motif is highlighted in cyan. FIG +100 109 FXF-motif structure_element Residues of MKP7-CD involved in JNK1 recognition are indicated by cyan asterisks, and the conserved FXF-motif is highlighted in cyan. FIG +39 43 MKP7 protein The secondary structure assignments of MKP7-CD and KAP are shown above and below each sequence. FIG +44 46 CD structure_element The secondary structure assignments of MKP7-CD and KAP are shown above and below each sequence. FIG +51 54 KAP protein The secondary structure assignments of MKP7-CD and KAP are shown above and below each sequence. FIG +4 22 Sequence alignment experimental_method (d) Sequence alignment of the F-site regions on MAPKs. FIG +30 44 F-site regions structure_element (d) Sequence alignment of the F-site regions on MAPKs. FIG +48 53 MAPKs protein_type (d) Sequence alignment of the F-site regions on MAPKs. FIG +12 16 JNK1 protein Residues of JNK1 involved in recognition of MKP7 are indicated by orange asterisks, and those forming the F-site are highlighted in yellow. FIG +44 48 MKP7 protein Residues of JNK1 involved in recognition of MKP7 are indicated by orange asterisks, and those forming the F-site are highlighted in yellow. FIG +106 112 F-site site Residues of JNK1 involved in recognition of MKP7 are indicated by orange asterisks, and those forming the F-site are highlighted in yellow. FIG +0 9 FXF-motif structure_element FXF-motif is critical for controlling the phosphorylation of JNK and ultraviolet-induced apoptosis. FIG +42 57 phosphorylation ptm FXF-motif is critical for controlling the phosphorylation of JNK and ultraviolet-induced apoptosis. FIG +61 64 JNK protein_type FXF-motif is critical for controlling the phosphorylation of JNK and ultraviolet-induced apoptosis. FIG +6 15 FXF-motif structure_element (a–c) FXF-motif is essential for the dephosphorylation of JNK by MKP7. FIG +58 61 JNK protein_type (a–c) FXF-motif is essential for the dephosphorylation of JNK by MKP7. FIG +65 69 MKP7 protein (a–c) FXF-motif is essential for the dephosphorylation of JNK by MKP7. FIG +33 45 lentiviruses taxonomy_domain HEK293T cells were infected with lentiviruses expressing MKP7 and its mutants (1.0 μg). FIG +57 61 MKP7 protein HEK293T cells were infected with lentiviruses expressing MKP7 and its mutants (1.0 μg). FIG +70 77 mutants protein_state HEK293T cells were infected with lentiviruses expressing MKP7 and its mutants (1.0 μg). FIG +71 80 etoposide chemical After 36 h infection, cells were untreated in a, stimulated with 30 μM etoposide for 3 h in b or irradiated with 25 J m−2 ultraviolet light at 30 min before lysis in c. Whole-cell extracts were then immunoblotted with antibody indicated. FIG +34 48 phosphorylated protein_state Shown is a typical immunoblot for phosphorylated JNK from three independent experiments. FIG +49 52 JNK protein_type Shown is a typical immunoblot for phosphorylated JNK from three independent experiments. FIG +4 10 F-site site (d) F-site is required for JNK1 to interact with MKP7. FIG +27 31 JNK1 protein (d) F-site is required for JNK1 to interact with MKP7. FIG +49 53 MKP7 protein (d) F-site is required for JNK1 to interact with MKP7. FIG +19 33 co-transfected experimental_method HEK293T cells were co-transfected with MKP7 full-length (1.0 μg) and JNK1 (wild type or mutants as indicated, 1.0 μg). FIG +39 43 MKP7 protein HEK293T cells were co-transfected with MKP7 full-length (1.0 μg) and JNK1 (wild type or mutants as indicated, 1.0 μg). FIG +44 55 full-length protein_state HEK293T cells were co-transfected with MKP7 full-length (1.0 μg) and JNK1 (wild type or mutants as indicated, 1.0 μg). FIG +69 73 JNK1 protein HEK293T cells were co-transfected with MKP7 full-length (1.0 μg) and JNK1 (wild type or mutants as indicated, 1.0 μg). FIG +75 84 wild type protein_state HEK293T cells were co-transfected with MKP7 full-length (1.0 μg) and JNK1 (wild type or mutants as indicated, 1.0 μg). FIG +88 95 mutants protein_state HEK293T cells were co-transfected with MKP7 full-length (1.0 μg) and JNK1 (wild type or mutants as indicated, 1.0 μg). FIG +30 48 immunoprecipitated experimental_method Whole-cell extracts were then immunoprecipitated with antibody against Myc for MKP7; immunobloting was carried out with antibodies indicated. FIG +79 83 MKP7 protein Whole-cell extracts were then immunoprecipitated with antibody against Myc for MKP7; immunobloting was carried out with antibodies indicated. FIG +0 2 IP experimental_method IP, immunoprecipitation; TCL, total cell lysate. FIG +4 23 immunoprecipitation experimental_method IP, immunoprecipitation; TCL, total cell lysate. FIG +14 18 MKP7 protein (e) Effect of MKP7 (wild type or mutants) expression on ultraviolet-induced apoptosis. FIG +20 29 wild type protein_state (e) Effect of MKP7 (wild type or mutants) expression on ultraviolet-induced apoptosis. FIG +33 40 mutants protein_state (e) Effect of MKP7 (wild type or mutants) expression on ultraviolet-induced apoptosis. FIG +30 42 lentiviruses taxonomy_domain HeLa cells were infected with lentiviruses expressing MKP7 full-length and its mutants. FIG +54 58 MKP7 protein HeLa cells were infected with lentiviruses expressing MKP7 full-length and its mutants. FIG +59 70 full-length protein_state HeLa cells were infected with lentiviruses expressing MKP7 full-length and its mutants. FIG +79 86 mutants protein_state HeLa cells were infected with lentiviruses expressing MKP7 full-length and its mutants. FIG +29 43 flow cytometry experimental_method Cells were then subjected to flow cytometry analysis. FIG +35 48 Annexin-V-APC chemical Apoptotic cells were determined by Annexin-V-APC/PI staining. FIG +49 51 PI chemical Apoptotic cells were determined by Annexin-V-APC/PI staining. FIG +18 27 Annexin-V chemical The results using Annexin-V stain for membrane phosphatidylserine eversion, combined with propidium iodide (PI) uptake to evaluate cells whose membranes had been compromised. FIG +90 106 propidium iodide chemical The results using Annexin-V stain for membrane phosphatidylserine eversion, combined with propidium iodide (PI) uptake to evaluate cells whose membranes had been compromised. FIG +108 110 PI chemical The results using Annexin-V stain for membrane phosphatidylserine eversion, combined with propidium iodide (PI) uptake to evaluate cells whose membranes had been compromised. FIG +19 28 Annexin-V chemical Staining with both Annexin-V and PI indicate apoptosis (upper right quadrant). FIG +33 35 PI chemical Staining with both Annexin-V and PI indicate apoptosis (upper right quadrant). FIG +64 66 *P evidence (f) Statistical analysis of apoptotic cells (mean±s.e.m., n=3), *P<0.05, ***P<0.001 (ANOVA followed by Tukey's test). FIG +73 77 ***P evidence (f) Statistical analysis of apoptotic cells (mean±s.e.m., n=3), *P<0.05, ***P<0.001 (ANOVA followed by Tukey's test). FIG +85 90 ANOVA experimental_method (f) Statistical analysis of apoptotic cells (mean±s.e.m., n=3), *P<0.05, ***P<0.001 (ANOVA followed by Tukey's test). FIG +103 115 Tukey's test experimental_method (f) Statistical analysis of apoptotic cells (mean±s.e.m., n=3), *P<0.05, ***P<0.001 (ANOVA followed by Tukey's test). FIG +0 4 MKP5 protein MKP5-CD is crucial for JNK1 binding and enzyme catalysis. FIG +5 7 CD structure_element MKP5-CD is crucial for JNK1 binding and enzyme catalysis. FIG +23 27 JNK1 protein MKP5-CD is crucial for JNK1 binding and enzyme catalysis. FIG +27 32 human species (a) Domain organization of human MKP5. FIG +33 37 MKP5 protein (a) Domain organization of human MKP5. FIG +4 7 KBD structure_element The KBD and CD of MKP5 are shown in brown and grey, respectively. (b) Plots of initial velocity of the MKP5-catalysed reaction versus phospho-JNK1 concentration. FIG +12 14 CD structure_element The KBD and CD of MKP5 are shown in brown and grey, respectively. (b) Plots of initial velocity of the MKP5-catalysed reaction versus phospho-JNK1 concentration. FIG +18 22 MKP5 protein The KBD and CD of MKP5 are shown in brown and grey, respectively. (b) Plots of initial velocity of the MKP5-catalysed reaction versus phospho-JNK1 concentration. FIG +70 95 Plots of initial velocity evidence The KBD and CD of MKP5 are shown in brown and grey, respectively. (b) Plots of initial velocity of the MKP5-catalysed reaction versus phospho-JNK1 concentration. FIG +103 107 MKP5 protein The KBD and CD of MKP5 are shown in brown and grey, respectively. (b) Plots of initial velocity of the MKP5-catalysed reaction versus phospho-JNK1 concentration. FIG +134 141 phospho protein_state The KBD and CD of MKP5 are shown in brown and grey, respectively. (b) Plots of initial velocity of the MKP5-catalysed reaction versus phospho-JNK1 concentration. FIG +142 146 JNK1 protein The KBD and CD of MKP5 are shown in brown and grey, respectively. (b) Plots of initial velocity of the MKP5-catalysed reaction versus phospho-JNK1 concentration. FIG +89 91 Km evidence The solid lines are best-fitting results according to the Michaelis–Menten equation with Km and kcat values indicated. FIG +96 100 kcat evidence The solid lines are best-fitting results according to the Michaelis–Menten equation with Km and kcat values indicated. FIG +36 57 Structural comparison experimental_method The error bars represent s.e.m. (c) Structural comparison of the JNK-interacting residues on MKP5-CD (PDB 1ZZW) and MKP7-CD. FIG +65 89 JNK-interacting residues site The error bars represent s.e.m. (c) Structural comparison of the JNK-interacting residues on MKP5-CD (PDB 1ZZW) and MKP7-CD. FIG +93 97 MKP5 protein The error bars represent s.e.m. (c) Structural comparison of the JNK-interacting residues on MKP5-CD (PDB 1ZZW) and MKP7-CD. FIG +98 100 CD structure_element The error bars represent s.e.m. (c) Structural comparison of the JNK-interacting residues on MKP5-CD (PDB 1ZZW) and MKP7-CD. FIG +116 120 MKP7 protein The error bars represent s.e.m. (c) Structural comparison of the JNK-interacting residues on MKP5-CD (PDB 1ZZW) and MKP7-CD. FIG +121 123 CD structure_element The error bars represent s.e.m. (c) Structural comparison of the JNK-interacting residues on MKP5-CD (PDB 1ZZW) and MKP7-CD. FIG +30 34 MKP5 protein The corresponding residues on MKP5 are depicted as orange sticks, and MKP5 residues numbers are in parentheses. FIG +70 74 MKP5 protein The corresponding residues on MKP5 are depicted as orange sticks, and MKP5 residues numbers are in parentheses. FIG +4 27 Gel filtration analysis experimental_method (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +47 51 JNK1 protein (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +57 61 MKP5 protein (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +62 64 CD structure_element (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +69 73 MKP5 protein (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +74 77 KBD structure_element (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +83 112 GST-mediated pull-down assays experimental_method (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +132 136 JNK1 protein (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +142 146 MKP5 protein (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +147 149 CD structure_element (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +154 158 MKP5 protein (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +159 162 KBD structure_element (d) Gel filtration analysis for interaction of JNK1 with MKP5-CD and MKP5-KBD. (e) GST-mediated pull-down assays for interaction of JNK1 with MKP5-CD and MKP5-KBD. FIG +63 72 mutations experimental_method The panels are arranged the same as in Fig. 2d. (f) Effects of mutations in MKP5-CD on the JNK1 dephosphorylation (mean±s.e.m., n=3). FIG +76 80 MKP5 protein The panels are arranged the same as in Fig. 2d. (f) Effects of mutations in MKP5-CD on the JNK1 dephosphorylation (mean±s.e.m., n=3). FIG +81 83 CD structure_element The panels are arranged the same as in Fig. 2d. (f) Effects of mutations in MKP5-CD on the JNK1 dephosphorylation (mean±s.e.m., n=3). FIG +91 95 JNK1 protein The panels are arranged the same as in Fig. 2d. (f) Effects of mutations in MKP5-CD on the JNK1 dephosphorylation (mean±s.e.m., n=3). FIG +15 24 mutations experimental_method (g) Effects of mutations in MKP5-CD on the pNPP hydrolysis reaction (mean±s.e.m., n=3). FIG +28 32 MKP5 protein (g) Effects of mutations in MKP5-CD on the pNPP hydrolysis reaction (mean±s.e.m., n=3). FIG +33 35 CD structure_element (g) Effects of mutations in MKP5-CD on the pNPP hydrolysis reaction (mean±s.e.m., n=3). FIG +43 47 pNPP chemical (g) Effects of mutations in MKP5-CD on the pNPP hydrolysis reaction (mean±s.e.m., n=3). FIG +4 20 Pull-down assays experimental_method (h) Pull-down assays of MKP5-CD by GST-tagged JNK1 mutants. FIG +24 28 MKP5 protein (h) Pull-down assays of MKP5-CD by GST-tagged JNK1 mutants. FIG +29 31 CD structure_element (h) Pull-down assays of MKP5-CD by GST-tagged JNK1 mutants. FIG +35 45 GST-tagged protein_state (h) Pull-down assays of MKP5-CD by GST-tagged JNK1 mutants. FIG +46 50 JNK1 protein (h) Pull-down assays of MKP5-CD by GST-tagged JNK1 mutants. FIG +51 58 mutants protein_state (h) Pull-down assays of MKP5-CD by GST-tagged JNK1 mutants. FIG