Protein: C-Jun-amino-terminal kinase-interacting protein 3 (JIP-3) (JNK-interacting protein 3) (JNK MAP kinase scaffold protein 3) (JNK/SAPK-associated protein 1) (JSAP1) (Mitogen-activated protein kinase 8-interacting protein 3) (Sunday driver 2) (Q9ESN9)
Organism: Mus musculus (Mouse)
Function: The JNK-interacting protein (JIP) group of scaffold proteins selectively mediates JNK signaling by aggregating specific components of the MAPK cascade to form a functional JNK signaling module. May function as a regulator of vesicle transport, through interactions with the JNK-signaling components and motor proteins. Promotes neuronal axon elongation in a kinesin- and JNK-dependent manner. Activates cofilin at axon tips via local activation of JNK, thereby regulating filopodial dynamics and enhancing axon elongation. Its binding to kinesin heavy chains (KHC), promotes kinesin-1 motility along microtubules and is essential for axon elongation and regeneration. Regulates cortical neuronal migration by mediating NTRK2/TRKB anterograde axonal transport during brain development. Acts as an adapter that bridges the interaction between NTRK2/TRKB and KLC1 and drives NTRK2/TRKB axonal but not dendritic anterograde transport, which is essential for subsequent BDNF-triggered signaling and filopodia formation.
Subcellular location: Cytoplasm {ECO:0000269|PubMed:10629060}. Golgi apparatus {ECO:0000269|PubMed:11106729}. Cytoplasmic vesicle {ECO:0000269|PubMed:11106729}. Cell projection, growth cone {ECO:0000269|PubMed:10629060}. Cell projection, axon {ECO:0000269|PubMed:25944905}. Cell projection, dendrite {ECO:0000250|UniProtKB:E9PSK7}. Cytoplasm, perinuclear region {ECO:0000250|UniProtKB:E9PSK7}. Note=Localized in the soma and growth cones of differentiated neurites and the Golgi and vesicles of the early secretory compartment of epithelial cells (PubMed:10629060, PubMed:11106729). KIF5A/B/C-mediated transportation to axon tips is essential for its function in enhancing neuronal axon elongation (By similarity). {ECO:0000250|UniProtKB:E9PSK7, ECO:0000269|PubMed:10629060, ECO:0000269|PubMed:11106729}.
InterPro domains:
- IPR032486: JNK-interacting protein, leucine zipper II (domain) [415-485]
- IPR034744: RH2 domain (domain) [521-595]
- IPR015943: WD40/YVTN repeat-like-containing domain superfamily (homologous_superfamily) [950-1195]
- IPR039911: JNK-interacting protein 3/4 (family) [6-1335]
- IPR034743: RH1 domain (domain) [12-100]
- IPR036322: WD40-repeat-containing domain superfamily (homologous_superfamily) [971-1174]
Sequence:
MMEIQMDEGGGVVVYQDDYCSGSVMSERVSGLAGSIYREFERLIHCYDEEVVKELMPLVVNVLENLDSVLSENQEHEVELELLREDNEQLLTQYEREKALRKQAEEKFIEFEDALEQEKKELQIQVEHYEFQTRQLELKAKNYADQISRLEERESEMKKEYNALHQRHTEMIQTYVEHIERSKMQQVGGSGQTESSLPGRSRKERPTSLNVFPLADGMVRAQMGGKLVPAGDHWHLSDLGQLQSSSSYQCPNDEMSESGQSSAAATPSTTGTKSNTPTSSVPSAAVTPLNESLQPLGDYVSVTKNNKQAREKRNSRNMEVQVTQEMRNVSIGMGSSDEWSDVQDIIDSTPELDVCPETRLERTGSSPTQGIVNKAFGINTDSLYHELSTAGSEVIGDVDEGADLLGEFSVRDDFFGMGKEVGNLLLENSQLLETKNALNVVKNDLIAKVDQLSGEQEVLKGELEAAKQAKVKLENRIKELEEELKRVKSEAVTARREPREEVEDVSSYLCTELDKIPMAQRRRFTRVEMARVLMERNQYKERLMELQEAVRWTEMIRASREHPSVQEKKKSTIWQFFSRLFSSSSSPPPAKRSYPSVNIHYKSPTAAGFSQRRSHALCQISAGSRPLEFFPDDDCTSSARREQKREQYRQVREHVRNDDGRLQACGWSLPAKYKQLSPNGGQEDTRMKNVPVPVYCRPLVEKDPSTKLWCAAGVNLSGWKPHEEDSSNGPKPVPGRDPLTCDREGEGEPKSTHPSPEKKKAKETPEADATSSRVWILTSTLTTSKVVIIDANQPGTIVDQFTVCNAHVLCISSIPAASDSDYPPGEMFLDSDVNPEDSGADGVLAGITLVGCATRCNVPRSNCSSRGDTPVLDKGQGDVATTANGKVNPSQSTEEATEATEVPDPGPSESEATTVRPGPLTEHVFTDPAPTPSSSTQPASENGSESNGTIVQPQVEPSGELSTTTSSAAPTMWLGAQNGWLYVHSAVANWKKCLHSIKLKDSVLSLVHVKGRVLVALADGTLAIFHRGEDGQWDLSNYHLMDLGHPHHSIRCMAVVNDRVWCGYKNKVHVIQPKTMQIEKSFDAHPRRESQVRQLAWIGDGVWVSIRLDSTLRLYHAHTHQHLQDVDIEPYVSKMLGTGKLGFSFVRITALLIAGNRLWVGTGNGVVISIPLTETVVLHRGQLLGLRANKTSPTSGEGTRPGGIIHVYGDDSSDKAASSFIPYCSMAQAQLCFHGHRDAVKFFVSVPGNVLATLNGSVLDSPSEGPGPAAPAADAEGQKLKNALVLSGGEGYIDFRIGDGEDDETEECAGDVNQTKPSLSKAERSHIIVWQVSYTPE
Predicted GO terms:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0060090 (molecular adaptor activity), GO:0030674 (protein-macromolecule adaptor activity), GO:0005515 (protein binding), GO:0042802 (identical protein binding), GO:0035591 (signaling adaptor activity), GO:0019899 (enzyme binding), GO:0008092 (cytoskeletal protein binding), GO:0019900 (kinase binding), GO:0019894 (kinesin binding), GO:0005078 (MAP-kinase scaffold activity), GO:0019901 (protein kinase binding)
Biological Process (BP): GO:0008150 (biological process), GO:0065007 (biological regulation), GO:0048518 (positive regulation of biological process), GO:0050789 (regulation of biological process), GO:0032502 (developmental process), GO:0009987 (cellular process), GO:0048869 (cellular developmental process), GO:0050793 (regulation of developmental process), GO:0048856 (anatomical structure development), GO:0023056 (positive regulation of signaling), GO:0048584 (positive regulation of response to stimulus), GO:0050794 (regulation of cellular process), GO:0048583 (regulation of response to stimulus), GO:0023051 (regulation of signaling), GO:0051094 (positive regulation of developmental process), GO:0048522 (positive regulation of cellular process), GO:0009967 (positive regulation of signal transduction), GO:0045597 (positive regulation of cell differentiation), GO:0061061 (muscle structure development), GO:0010646 (regulation of cell communication), GO:0030154 (cell differentiation), GO:0009966 (regulation of signal transduction), GO:0045595 (regulation of cell differentiation), GO:0010647 (positive regulation of cell communication), GO:0045664 (regulation of neuron differentiation), GO:0045666 (positive regulation of neuron differentiation), GO:0042692 (muscle cell differentiation), GO:1902533 (positive regulation of intracellular signal transduction), GO:1902531 (regulation of intracellular signal transduction), GO:0043408 (regulation of MAPK cascade), GO:0051146 (striated muscle cell differentiation), GO:0043410 (positive regulation of MAPK cascade)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005829 (cytosol), GO:0005622 (intracellular anatomical structure), GO:0005737 (cytoplasm)