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O96017
P30304
1
phosphorylation
down-regulates quantity by destabilization
0.843
We show that IR-induced destruction of Cdc25A requires both ATM and the Chk2-mediated phosphorylation of Cdc25A on serine 123.
SIGNOR-106808
Q13315
P04637
1
phosphorylation
up-regulates quantity by stabilization
0.843
In response to ionizing radiation (ir), atm, the gene product mutated in ataxia telangiectasia, stabilizes and activates p53 through phosphorylation of ser15 and (indirectly) ser20. Here we show that phosphorylation of p53 on ser46, a residue important for p53 apoptotic activity, as well as on ser9, in response to ir also is dependent on the atm protein kinase. one pathway involves the phosphorylation of p53 and its negative regulator mdm2 by ataxia telangiectasia mutated (atm) and chk2 causing p53 activation and stabilization.
SIGNOR-115348
P15692
P17948
1
binding
up-regulates
0.843
Vegf exerts its action by binding to vegfr-1 and vegfr-2.
SIGNOR-121132
P43034
Q9GZM8
1
binding
up-regulates activity
0.843
We demonstrate that LIS1 directly interacts with the cytoplasmic dynein heavy chain (CDHC) and NUDEL. LIS1 is required for the proper distribution of NUDEL and cellular components regulated by CDHC function. Reduction of LIS1 leads to mislocalization of NUDEL, CDHC, β-tubulin, and the Golgi complex
SIGNOR-252157
O14757
Q06609
1
phosphorylation
up-regulates
0.843
We demonstrate that chk1 interacts with rad51, and that rad51 is phosphorylated on thr 309 in a chk1-dependent manner
SIGNOR-133375
Q06643
P36941
1
binding
up-regulates activity
0.843
These experiments point toward the lt-alpha 1/beta 2 complex as the predominant membrane form of lt on the lymphocyte surface, and this complex is the primary ligand for the lt-beta receptor.
SIGNOR-35759
P38398
Q99708
2
ubiquitination
up-regulates
0.842
In conclusion, our data show that ctip is a physiological substrate of the brca1 e3 ligase. Brca1 recruits ctip through its c-terminal brct domains and promotes ctip ubiquitination through its n-terminal ring domain. The ubiquitinated ctip is not targeted for degradation. Instead, ubiquitinated ctip binds to chromatin following dna damage and is likely to be involved in dna damage checkpoint control.
SIGNOR-147711
Q9NW38
Q9NVI1
1
ubiquitination
up-regulates activity
0.842
Phosphorylation of FANCD2 and Fanconi anemia core components (broken pink circles) affects the efficiency of, but is not essential for, ID ubiquitination by the FA core complex, together with E1 and UBE2T. Analogously, ubiquitination of FANCD2 (solid orange ovals) is essential for DNA repair, activating the ID complex for chromatin binding
SIGNOR-263266
P49674
O15534
1
phosphorylation
down-regulates quantity by destabilization
0.842
We show here that mPer proteins, negative limbs of the autoregulatory loop, are specific substrates for CKIepsilon and CKIdelta. The CKI phosphorylation of mPer1 and mPer3 proteins results in their rapid degradation, which is dependent on the ubiquitin-proteasome pathway.
SIGNOR-267997
Q99708
P38398
2
relocalization
up-regulates activity
0.842
DNA damage activates ATM and CHK2 kinases, which mediate phosphorylation of CtIP and BRCA1. Phosphorylated CtIP associates with BRCA1 and with the MRN complex leading to the recruitment of the BRCC complex at the site of DNA damage where HR is initiated.
SIGNOR-263203
P06493
P30304
2
phosphorylation
up-regulates
0.842
Mitotic stabilization of cdc25a reflects its phosphorylation on ser17 and ser115 by cyclin b-cdk1, modifications required to uncouple cdc25a from its ubiquitin-proteasome-mediated turnover.
SIGNOR-95260
P30304
P06493
2
dephosphorylation
up-regulates activity
0.842
Phosphatase activity of Cdc25A is critical for its activating capacity (data not shown). In this context, it should also be mentioned that Cdc25A is able to activate cyclin B-Cdk1 in vitro
SIGNOR-248480
Q07817
O14727
1
binding
down-regulates activity
0.842
These experiments demonstrate that bcl-xl associates with caspase-9 and apaf-1, and show that bcl-xl inhibits the maturation of caspase-9 mediated by apaf-1.
SIGNOR-56399
P00533
P19174
1
phosphorylation
up-regulates
0.841
We have identified the sites phosphorylated in vitro by epidermal growth factor (egf) receptor kinase in bovine brain phospholipase c-gamma (plc-gamma). They are tyrosine residues 472, 771, 783, and 1254. we propose, therefore, that the phosphorylation of plc-gamma by egf receptor kinase alters its interaction with putative inhibitory proteins and leads to its activation.
SIGNOR-20984
Q99683
Q9UER7
2
phosphorylation
up-regulates
0.841
Our data demonstrated that ask1 controls the cytoplasmic localization of daxx (fig.1). our results indicate that daxx not only activates ask1 but also is a downstream target of ask1 and that accumulated daxx further activates ask1. Thus, the daxx-ask1 positive feedback loop amplifying jnk/p38 signaling plays an important role in the cell-killing effects of stressors, such as tnfalpha.
SIGNOR-188321
Q05513
Q9NPB6
1
phosphorylation
up-regulates quantity by stabilization
0.841
APKC associates and phosphorylates Par6 on S345. aPKC expression stabilizes Par6 protein levels. We show that the aPKC, PKCι, interacts with TGF-β receptors through Par6 and that these proteins localize to the leading edge of migrating cells. Furthermore, Par6 phosphorylation on serine 345 by TGF-β receptors is enhanced in the presence of aPKC. aPKC kinase activity, as well as an association with Par6, were found to be important for Par6 phosphorylation.
SIGNOR-276433
Q9UER7
Q99683
2
binding
up-regulates
0.841
Daxx was found to activate the jnk kinase kinase ask1, and overexpression of a kinase-deficient ask1 mutant inhibited fas- and daxx-induced apoptosis and jnk activation.
SIGNOR-60164
Q13144
P05198
1
guanine nucleotide exchange factor
up-regulates activity
0.84
EIF2B converts the protein synthesis initiation factor 2 (eIF2) from an inactive GDP-bound form to an active eIF2-GTP complex owing to its guanine nucleotide exchange factor (GEF) activity.
SIGNOR-269123
P53350
O60566
1
phosphorylation
up-regulates
0.84
We identify s676 as a plk1-specific phosphorylation site on bubr1. These findings describe the first in vivo verified phosphorylation site for human bubr1, identify plk1 as the kinase responsible for causing the characteristic mitotic bubr1 upshift, and attribute a kt-specific function to the hyperphosphorylated form of bubr1 in the stabilization of kt-mt interactions.
SIGNOR-157646
O60763
Q14789
1
binding
up-regulates activity
0.84
The “cis-golgin tether” is one of the most well-characterized golgin tether complexes. It is composed of the COPI vesicle-associated golgin giantin linked to Golgi membrane-associated GM130 via p115. GM130 is in turn linked to GRASP65 via a PDZ-like domain. GRASP65 is anchored to the Golgi membrane through N-terminal myristoylation as well as through binding to other Golgi proteins [10]. Together, these proteins appear to mediate vesicle tethering at the cis-Golgi membrane.
SIGNOR-261237
Q8N2Q7
P58400
1
binding
up-regulates activity
0.84
Pre- and postsynaptic plasma membranes are always precisely aligned, and are separated by a synaptic cleft of ~20 nm. The cleft contains an undefined proteinaceous material in the middle, and is presumably bridged by synaptic cell-adhesion molecules such as Nrxns and Nlgns that align the pre- and postsynaptic elements and mediate trans-synaptic signaling.|Nlgns bind to both alpha- and beta-Nrxns with nanomolar affinities; binding involves the sixth LNS-domain of alpha-Nrxns which corresponds to the only LNS-domain of beta-Nrxns52. The binding affinities differ characteristically between various pairs of Nlgns and Nrxns, and are controlled by alternative splicing of both Nrxns and Nlgns (Figure 1c)
SIGNOR-264149
Q9Y2T1
P25054
1
binding
up-regulates
0.84
It has been found that a multiprotein complex assembled by the cytoplasmic component conductin induces degradation of cytoplasmic beta-catenin. The complex includes apc, the serine/threonine kinase gsk3 beta, and beta-catenin, which bind to conductin at distinct domains.
SIGNOR-79944
Q8N2Q7
Q9ULB1
1
binding
up-regulates activity
0.84
Pre- and postsynaptic plasma membranes are always precisely aligned, and are separated by a synaptic cleft of ~20 nm. The cleft contains an undefined proteinaceous material in the middle, and is presumably bridged by synaptic cell-adhesion molecules such as Nrxns and Nlgns that align the pre- and postsynaptic elements and mediate trans-synaptic signaling.|Nlgns bind to both alpha- and beta-Nrxns with nanomolar affinities; binding involves the sixth LNS-domain of alpha-Nrxns which corresponds to the only LNS-domain of beta-Nrxns52. The binding affinities differ characteristically between various pairs of Nlgns and Nrxns, and are controlled by alternative splicing of both Nrxns and Nlgns (Figure 1c)
SIGNOR-264144
Q9NZ94
Q9ULB1
1
binding
up-regulates activity
0.84
Pre- and postsynaptic plasma membranes are always precisely aligned, and are separated by a synaptic cleft of ~20 nm. The cleft contains an undefined proteinaceous material in the middle, and is presumably bridged by synaptic cell-adhesion molecules such as Nrxns and Nlgns that align the pre- and postsynaptic elements and mediate trans-synaptic signaling.|Nlgns bind to both alpha- and beta-Nrxns with nanomolar affinities; binding involves the sixth LNS-domain of alpha-Nrxns which corresponds to the only LNS-domain of beta-Nrxns52. The binding affinities differ characteristically between various pairs of Nlgns and Nrxns, and are controlled by alternative splicing of both Nrxns and Nlgns (Figure 1c)
SIGNOR-264142
O95835
P46937
1
phosphorylation
down-regulates quantity by destabilization
0.84
We show that YAP is phosphorylated by Lats on Ser 381 in one of the HXRXXS motifs, and this phosphorylation provides the priming signal for CK1delta/epsilon to phosphorylate a phosphodegron in YAP. The phosphorylated phosphodegron recruits beta-TRCP, leading to YAP ubiquitination and degradation under conditions of elevated Hippo pathway activity, such as cell contact inhibition
SIGNOR-218034
P31749
P38936
1
phosphorylation
up-regulates quantity by stabilization
0.84
Pim-1, PKC, and Akt1 kinases phosphorylate Thr-145 and Ser-146 sites on p21 protein. Phosphorylation at Thr-145 promotes cytoplasmic translocation and stability of p21. Ser-146 phosphorylation mediated by Akt1 enhances p21 stabilization and promotes cell survival.
SIGNOR-157790
Q9NZ94
P58400
1
binding
up-regulates activity
0.84
Pre- and postsynaptic plasma membranes are always precisely aligned, and are separated by a synaptic cleft of ~20 nm. The cleft contains an undefined proteinaceous material in the middle, and is presumably bridged by synaptic cell-adhesion molecules such as Nrxns and Nlgns that align the pre- and postsynaptic elements and mediate trans-synaptic signaling.|Nlgns bind to both alpha- and beta-Nrxns with nanomolar affinities; binding involves the sixth LNS-domain of alpha-Nrxns which corresponds to the only LNS-domain of beta-Nrxns52. The binding affinities differ characteristically between various pairs of Nlgns and Nrxns, and are controlled by alternative splicing of both Nrxns and Nlgns (Figure 1c)
SIGNOR-264147
Q15596
P04150
1
binding
up-regulates activity
0.839
Here we report that GRIP1 loss in macrophages attenuates glucocorticoid induction of several anti-inflammatory targets, and that GC treatment of quiescent macrophages globally directs GRIP1 toward GR binding sites dominated by palindromic GC response elements (GRE), suggesting a non-redundant GRIP1 function as a GR coactivator.
SIGNOR-256095
P21860
P62993
1
binding
up-regulates
0.839
All erbb ligands and receptors couple to activation of the ras-mapk pathway, either directly through sh2 domain-mediated recruitment of grb-2 or indirectly through ptb domain-mediated binding of the shc adaptor. In this study, we identify grb2 as a specific binding partner to tyrosines y1199 and y1268 of erbb3.
SIGNOR-121971
Q14623
Q13635
1
binding
down-regulates activity
0.838
Biochemical analysis of ptch and ptch2 shows that they both bind to all hedgehog family members with similar affinity and that they can form a complex with smo.Current models suggest that binding of Shh to PTCH prevents the normal inhibition of the seven-transmembrane-protein Smoothened (SMO) by PTCH.
SIGNOR-61311
Q15768
P54764
1
binding
up-regulates
0.838
Receptors of the epha group preferentially interact with glycosylphosphatidylinositol (gpi)-linked ligands (of the ephrin-a subclass, which comprises five ligands), while receptors of the ephb group preferentially interact with transmembrane ligands (of the ephrin-b subclass, which comprises three ligands) (table 1). In either case, binding of a ligand results in eph receptor autophosphorylation on tyrosine residues and activation of the kinase activity of the eph receptor
SIGNOR-52621
P15498
P43403
2
binding
up-regulates activity
0.838
In summary, we demonstrate here that Y315 in ZAP-70 is required to interact with the Vav SH2 domain, and is critical for ZAP-70–mediated gene activation.
SIGNOR-274150
P01112
P10398
1
binding
up-regulates
0.838
The raf family of proteins (raf-1, a-raf, and b-raf) is serine/threonine kinases that bind to the effector region of ras-gtp, thus inducing translocation of the protein to the plasma membrane. Once there, raf proteins are activated and phosphorylated by different protein kinases.
SIGNOR-175183
P43403
P15498
2
phosphorylation
up-regulates activity
0.838
These results suggest that CBAP may serve as an adaptor or scaffold in the integrin \u03b21/CBAP/ZAP70-containing complex that, upon chemokine treatment, would allow Vav1 or ZAP70 (or both) to adopt an optimal conformation(s) for ZAP70 to phosphorylate Vav1.|Together, these results suggested that CBAP is an important component in ZAP70 dependent activation of the Vav1 and Rac1 signaling axis.
SIGNOR-278390
Q06124
P04626
1
dephosphorylation
down-regulates
0.838
...which in turn suggests the importance SHP2 dephosphorylation of pTyr992 in EGFR and pTyr1023 in HER2 to mediate signaling.|More specifically, we show that acidic residues N-terminal to the substrate pTyr in EGFR and HER2 mediate specific binding by the SHP2 active site, leading to blockade of RasGAP binding and optimal signaling by the two receptors.
SIGNOR-262957
Q15746
P24844
1
phosphorylation
up-regulates
0.838
More than a dozen kinases have been reported to phosphorylate the rlcs of nm ii (fig. 2), including myosin light chain kinase (mlck;also known as mylk), rho-associated, coiled coil-containing kinase (rock), citron kinase, leucine zipper interacting kinase (zipk;also known as dapk3) and myotonic dystrophy kinase-related cdc42-binding kinase (mrck;also known as cdc42bp)6,34,45,46. These kinases phosphorylate rlcs on ser19, thr18 or both, to relieve the inhibition imposed on the myosin molecule by unphosphorylated rlcs and the head_head interaction outlined above.
SIGNOR-188797
O94907
Q96MU8
1
binding
up-regulates
0.838
Dkk1 has been shown to inhibitwnt by binding to and antagonizing lrp5/6. Here we show that the transmembrane proteins kremen1 and kremen2 are high-affinity dkk1 receptors that functionally cooperate with dkk1 to blockwnt/betBeta-catenin. Kremen2 forms a ternary complex with dkk1 and lrp6, and induces rapid endocytosis and removal of thewntreceptor lrp6 from the plasma membrane.
SIGNOR-88838
Q9GZQ8
Q13501
1
binding
up-regulates
0.837
Sqstm1/p62 (named a170 in the mouse;hereafter p62) is the first proposed example of such proteins (bj_?_?Rk_?_?Y et al.,2005). It binds polyubiquitinated protein aggregates via its uba domain and interacts with lc3 on the autophagosome/ this interaction is necessary for autophagic degradation of p62-positive cytoplasmic inclusion bodies containing ubiquitinated proteins. We also demonstrate that alis are indistinguishable from p62 inclusion bodies and that p62 is required for their formation.
SIGNOR-184255
O43521
Q16611
1
binding
up-regulates
0.837
Bim, and puma bind with high affinity to all pro-survival proteins
SIGNOR-196932
P45983
Q12968
1
phosphorylation
down-regulates
0.837
Jnks directly phosphorylate nuclear factor of activated t-cell (nfat) transcription factors, thus antagonizing the effects of calcium-regulated signaling through the protein phosphatase calcineurin
SIGNOR-118220
Q5VWQ8
Q99683
1
binding
up-regulates activity
0.837
DAB2IP also mediates recruitment of PP2A to ASK1, binding both proteins through its C2 domain; this favors removal of the inhibitory S967 phosphorylation and further activation of ASK1
SIGNOR-254748
Q00987
O15350
1
binding
down-regulates activity
0.837
Since HDM2, a key negative regulator of p53, also binds to and inhibits p73, we asked whether p73 could mediate Nutlin-3-induced apoptosis.
SIGNOR-255470
P01303
P49146
1
binding
up-regulates
0.837
Analogs of npy and pyy have been synthesized that contain a proline residue in position 34 of the molecule, i.e., [leu31, pro34]npy (fuhlendorff et al., 1990) or [pro34]pyy (grandt et al., 1994b), and are much more potent at y1 than y2receptors.
SIGNOR-56568
P47736
P62834
1
binding
down-regulates activity
0.837
Overexpression of Rap1GAP significantly inhibited Rap1 activation, ERK and Akt phosphorylation of HUVECs compared with pcDNA transfection controls
SIGNOR-278054
P01138
P08138
1
binding
up-regulates
0.836
The low affinity neurotrophin receptor p75ntr can mediate cell survival as well as cell death of neural cells by ngf and other neurotrophins.
SIGNOR-76832
Q86VW2
P61586
1
guanine nucleotide exchange factor
up-regulates activity
0.835
We therefore developed a screening-compatible live-cell imaging assay, using FRET-based biosensors for the prototype GTPases RHOA, RAC1 and CDC4215,19,20 (Extended Data Fig. 2 and Supplementary Note 1)|We found catalytic activities for 45/75 RhoGEFs and 48/63 RhoGAPs| Our data thus not only reveal extensive promiscuity among regulators, but also that the inactivating RhoGAPs are less selective than the activating RhoGEFs (p-value=0.02)(Supplementary Table 2).
SIGNOR-260544
Q13315
O96017
1
phosphorylation
up-regulates activity
0.835
Phosphorylation and activation of chk2 are ataxia telangiectasia-mutated (atm) dependent in response to ir
SIGNOR-81403
Q96EB6
Q09472
1
deacetylation
down-regulates
0.835
Sirt1 induces deacetylation and repression of p300 itself (81). Mutational analysis demonstrated that sirt1 repression of p300 involves both lysine 1020 and lysine 1024
SIGNOR-182511
Q14116
Q13478
1
binding
up-regulates
0.835
Acpl was required for il-18 responsiveness in terms of nf?B Induction and jnk activation
SIGNOR-60991
O75581
O15169
1
relocalization
down-regulates activity
0.835
The phosphorylation of lrp6 generates a docking site for axin and recruits it to the plasma membrane, where axin is inactivated and/or targeted for degradation by an unknown mechanism.
SIGNOR-148668
P01111
P10398
1
binding
up-regulates
0.835
The raf family of proteins (raf-1, a-raf, and b-raf) is serine/threonine kinases that bind to the effector region of ras-gtp, thus inducing translocation of the protein to the plasma membrane. Once there, raf proteins are activated and phosphorylated by different protein kinases.
SIGNOR-175216
Q9GZQ8
Q9NT62
1
binding
up-regulates
0.835
Lc3-i is activated by the same atg7 involved in atg12 conjugation, transferred to atg3, a second e2-like enzyme, and finally conjugated to pe.
SIGNOR-191549
Q14676
O60934
1
binding
up-regulates
0.834
Mdc1 also undergoes phosphorylation by ck2 after dna damage to generate a phospho-motif on mdc1, which binds directly to nbs1.
SIGNOR-184141
P42345
Q9UBS0
1
phosphorylation
up-regulates
0.834
In response to insulin and nutrients, mtorc1, consisting of mtor, raptor (regulatory-associated protein of mtor), and mlst8, is activated and phosphorylates eukaryotic initiation factor 4e-binding protein (4ebp) and p70 s6 kinase to promote protein synthesis and cell size.
SIGNOR-154821
O43307
P60953
1
guanine nucleotide exchange factor
up-regulates activity
0.834
We therefore developed a screening-compatible live-cell imaging assay, using FRET-based biosensors for the prototype GTPases RHOA, RAC1 and CDC4215,19,20 (Extended Data Fig. 2 and Supplementary Note 1)|We found catalytic activities for 45/75 RhoGEFs and 48/63 RhoGAPs| Our data thus not only reveal extensive promiscuity among regulators, but also that the inactivating RhoGAPs are less selective than the activating RhoGEFs (p-value=0.02)(Supplementary Table 2).
SIGNOR-260534
P78317
P61956
1
polyubiquitination
down-regulates quantity by destabilization
0.834
Here we demonstrate that the RING-domain-containing ubiquitin E3 ligase, RNF4 (also known as SNURF), targets poly-SUMO-modified proteins for degradation mediated by ubiquitin. RNF4 depletion or proteasome inhibition led to accumulation of mixed, polyubiquitinated, poly-SUMO chains. PML protein accumulated in RNF4-depleted cells and was ubiquitinated by RNF4 in a SUMO-dependent fashion in vitro.RNF4 preferentially binds to and ubiquitinates SUMO-2 polymers over SUMO-2 monomers in vitro
SIGNOR-272640
Q9H4B6
Q13188
2
binding
up-regulates
0.834
Mst is activated by binding of salvador (sav1, sav in drosophila), which is, in turn, also phosphorylated by mst.
SIGNOR-169829
Q92918
O75791
1
phosphorylation
down-regulates activity
0.834
Serine/threonine phosphorylation of the T cell adaptor proteins SLP76 and GADS by HPK1 induces their release from signaling microclusters and subsequent termination of the T cell response.
SIGNOR-279421
Q13188
Q9H4B6
2
phosphorylation
up-regulates
0.834
In vitro phosphorylation experiments indicate that the phosphorylation of Sav by Mst is direct. The stabilizing effect of Mst was much greater on N-terminally truncated hSav mutants, as long as they retained the ability to bind Mst. Mst mutants that lacked the C-terminal coiled-coil domain and were unable to bind to hSav, also failed to stabilize or phosphorylate hSav
SIGNOR-230716
P61586
Q16513
1
binding
up-regulates activity
0.833
PKNs bind to human pyrin and phosphorylate S208 and S242. Pyrin forms an inflammasome when mutant or in response to bacterial modification of the GTPase RhoA. We found that RhoA activated the serine-threonine kinases PKN1 and PKN2 that bind and phosphorylate pyrin. Phosphorylated pyrin bound to 14-3-3 proteins, regulatory proteins that in turn blocked the pyrin inflammasome.
SIGNOR-275466
Q9NR50
P05198
1
guanine nucleotide exchange factor
up-regulates activity
0.833
EIF2B converts the protein synthesis initiation factor 2 (eIF2) from an inactive GDP-bound form to an active eIF2-GTP complex owing to its guanine nucleotide exchange factor (GEF) activity.
SIGNOR-269126
Q03591
P01024
1
binding
up-regulates activity
0.833
Finally, we have been able to establish that CFHR1 can sterically inhibit the interaction that CFH/CFHL-1 SCR1-4 makes with C3b.|CFH regulates the alternative pathway of complement in both the fluid phase and on self-surfaces: It competes with complement factor B (CFB) for binding to C3b and C3(H2O) thereby blocking the formation of the pro-convertase complexes, C3bB and C3(H2O)B. It also accelerates the decay of any existing C3bBb or C3(H2O)Bb. |these data have allowed us to consolidate one possible model of CFHR1-mediated deregulation of CFH/CFHL-1 on an activating surface in which CFHR1 directly competes with or blocks both CFH-binding sites on C3b
SIGNOR-263475
Q8N5C8
O43318
1
binding
up-regulates activity
0.833
We have identified a new binding partner of the tgfbeta (transforming growth factor-beta)-activated protein kinase (tak1), termed tab.two distinct tak1 complexes are present in cells. One comprises tak1 complexed with tab1 and tab2, and the other tak1 complexed with tab1 and tab3 (tak1-binding protein-3). Both complexes are activated in response to tumour necrosis factor-alpha or interleukin-1.
SIGNOR-120325
O43521
Q07812
1
binding
up-regulates activity
0.832
We have shown that the interaction of the bims and bimad isoforms with bax leads to a conformational change in this protein analogous to that triggered by the bh3-only protein bid.We find short peptides representing the alpha-helical bh3 domains of bid or bim are capable of inducing oligomerization of bak and bax to release cytochrome.
SIGNOR-87280
Q9Y2T1
P49841
1
binding
up-regulates activity
0.832
It has been found that a multiprotein complex assembled by the cytoplasmic component conductin induces degradation of cytoplasmic beta-catenin. The complex includes apc, the serine/threonine kinase gsk3 beta, and beta-catenin, which bind to conductin at distinct domains.
SIGNOR-79950
P41221
Q13467
1
binding
up-regulates
0.832
These results identify hfz5 as a receptor for wnt-5a.
SIGNOR-46897
P19438
Q12933
1
null
up-regulates
0.832
We found that TNF-R1-mediated IKK activation requires both RIP and TRAF2 proteins. Although TRAF2 or RIP can be independently recruited to the TNF-R1 complex, neither one of them alone is capable of transducing the TNF signal that leads to IKK activation
SIGNOR-256251
O95631
O95185
1
binding
up-regulates
0.832
We provide evidence that netrin-1 triggers the formation of a receptor complex of dcc and unc5 proteins and simultaneously derepresses the interaction between their cytoplasmic domains, thereby converting dcc-mediated attraction to unc5/dcc-mediated repulsion.
SIGNOR-69047
Q7Z628
P61586
1
guanine nucleotide exchange factor
up-regulates activity
0.832
We therefore developed a screening-compatible live-cell imaging assay, using FRET-based biosensors for the prototype GTPases RHOA, RAC1 and CDC4215,19,20 (Extended Data Fig. 2 and Supplementary Note 1)|We found catalytic activities for 45/75 RhoGEFs and 48/63 RhoGAPs| Our data thus not only reveal extensive promiscuity among regulators, but also that the inactivating RhoGAPs are less selective than the activating RhoGEFs (p-value=0.02)(Supplementary Table 2).
SIGNOR-260561
Q7Z434
Q14164
1
binding
up-regulates activity
0.832
After ligand binding, cGAS and RIG-I signal through respective adaptor proteins STING and MAVS to recruit the kinases IKK and TBK1, which then activate the transcription factors NF-κB and interferon regulatory factor 3 (IRF3), respectively.
SIGNOR-260144
P30307
P14635
1
dephosphorylation
up-regulates activity
0.832
Cdc25C is an activator of Cdc2 kinase and dephosphorylates and activates the CyclinB-Cdc2 complex shortly before the entry into the mitosis.
SIGNOR-277099
Q92888
P61586
1
guanine nucleotide exchange factor
up-regulates activity
0.831
We therefore developed a screening-compatible live-cell imaging assay, using FRET-based biosensors for the prototype GTPases RHOA, RAC1 and CDC4215,19,20 (Extended Data Fig. 2 and Supplementary Note 1)|We found catalytic activities for 45/75 RhoGEFs and 48/63 RhoGAPs| Our data thus not only reveal extensive promiscuity among regulators, but also that the inactivating RhoGAPs are less selective than the activating RhoGEFs (p-value=0.02)(Supplementary Table 2).
SIGNOR-260528
O00220
Q13158
1
binding
up-regulates
0.831
Fadd binds to ligated trailr1 or trail-r2
SIGNOR-97869
O43541
Q9HCE7
2
binding
up-regulates activity
0.831
Smad6 mediates Tbx6 ubiquitination and proteasomal degradation. Tbx6 forms a ternary complex with Smad6 and Smurf1. Here, we report that Tbx6 interacts directly with Smad6, an inhibitory Smad that antagonizes the BMP signal. This interaction is mediated through the Mad homology 2 (MH2) domain of Smad6 and residues 90-180 of Tbx6. We demonstrate that Smad6 facilitates the degradation of Tbx6 protein through recruitment of Smurf1, a ubiquitin E3 ligase.
SIGNOR-272786
O43683
Q02224
1
relocalization
up-regulates activity
0.831
Spindle checkpoint protein Bub1 is required for kinetochore localization of Mad1, Mad2, Bub3, and CENP-E, independently of its kinase activity
SIGNOR-252016
Q9HCE7
O43541
2
relocalization
down-regulates activity
0.831
Smurf1, with its WW domain, specifically binds to the PY motif of Smad6 and transports Smad6 into the cytoplasm.
SIGNOR-105931
Q13315
Q9UQ84
1
phosphorylation
up-regulates
0.83
The phosphorylation of exo1 by atm appears to regulate the activity of exo1 following resection, allowing optimal rad51 loading and the completion of hr repair.
SIGNOR-162304
P30304
P24941
2
dephosphorylation
up-regulates activity
0.83
The phosphatase activity of Cdc25A is necessary for Cdk2 activation, most likely due to dephosphorylation on Tyr-15 and Thr-14 of Cdk2.
SIGNOR-248481
O94921
Q8ND76
2
phosphorylation
down-regulates quantity by destabilization
0.83
Phosphorylation of cyclin Y by CDK14 induces its ubiquitination and degradation|Phosphorylation of CCNY at Serines 71 and 73 creates a putative phospho-degron that controls its association with an SCF complex
SIGNOR-273007
P24941
P30304
2
phosphorylation
down-regulates
0.83
We show here that dna-responsive checkpoints activate pp2a/b56delta phosphatase complexes to dephosphorylate cdc25 at a site distinct from ser287 (t138), the phosphorylation of which is required for 14-3-3 release.
SIGNOR-150839
Q9Y4K3
Q8IUC6
1
polyubiquitination
up-regulates
0.83
Here, we show that the TRAF family proteins directly bind TICAM-1 and demonstrate that TRAF2 and TRAF6 bind different sites of the N-terminal TICAM-1 and accelerate its polyubiquitination. we speculate that polyubiquitination of TICAM-1 by TRAF2 and TRAF6 is required for TICAM-1 to induce IRF-3 and NF-κB activation. This is supported by the observation that polyubiquitination of TICAM-1 was required for TRAF3-binding to TICAM-1
SIGNOR-271428
Q8ND76
O94921
2
binding
up-regulates
0.83
L63 and its vertebrate homolog pftk are regulated by the membrane tethered g2/m cyclin, cyclin y, which mediates binding to and phosphorylation of lrp6.
SIGNOR-162920
Q15303
P62993
1
binding
up-regulates
0.83
Egfr and erbb4 had several docking sites for grb2, while erbb3 was characterized by six binding sites for pi3k. Egfr has six binding sites for the adapter protein grb2, and erbb4 has five, each with different binding strength.
SIGNOR-146876
P0DP23
Q96RR4
1
binding
up-regulates
0.83
The ca2+-calmodulin-dependent protein kinase (cam kinase) cascade includes three kinases: cam-kinase kinase (camkk);and the cam kinases camki and camkiv, which are phosphorylated and activated by camkk.
SIGNOR-61922
P20827
P21709
1
binding
up-regulates
0.83
The eph family receptors and ligands.
SIGNOR-51932
Q9NZ94
P58401
1
binding
up-regulates activity
0.83
Pre- and postsynaptic plasma membranes are always precisely aligned, and are separated by a synaptic cleft of ~20 nm. The cleft contains an undefined proteinaceous material in the middle, and is presumably bridged by synaptic cell-adhesion molecules such as Nrxns and Nlgns that align the pre- and postsynaptic elements and mediate trans-synaptic signaling.|Nlgns bind to both alpha- and beta-Nrxns with nanomolar affinities; binding involves the sixth LNS-domain of alpha-Nrxns which corresponds to the only LNS-domain of beta-Nrxns52. The binding affinities differ characteristically between various pairs of Nlgns and Nrxns, and are controlled by alternative splicing of both Nrxns and Nlgns (Figure 1c)
SIGNOR-264157
Q9NZ94
Q9P2S2
1
binding
up-regulates activity
0.83
Pre- and postsynaptic plasma membranes are always precisely aligned, and are separated by a synaptic cleft of ~20 nm. The cleft contains an undefined proteinaceous material in the middle, and is presumably bridged by synaptic cell-adhesion molecules such as Nrxns and Nlgns that align the pre- and postsynaptic elements and mediate trans-synaptic signaling.|Nlgns bind to both alpha- and beta-Nrxns with nanomolar affinities; binding involves the sixth LNS-domain of alpha-Nrxns which corresponds to the only LNS-domain of beta-Nrxns52. The binding affinities differ characteristically between various pairs of Nlgns and Nrxns, and are controlled by alternative splicing of both Nrxns and Nlgns (Figure 1c)
SIGNOR-264152
O75197
O15169
1
relocalization
down-regulates quantity
0.83
Axin is a protein that interacts with the intracellular domain of LRP-5. LRP-5 active form bind Axin and induce LEF-1 activation by destabilizing Axin and stabilizing beta-catenin.
SIGNOR-236997
P24394
P31785
1
binding
up-regulates
0.83
Il-2r gamma was demonstrated to be a component of the il-4 receptor on the basis of chemical cross-linking data, the ability of il-2r gamma to augment il-4 binding affinity, and the requirement for il-2r gamma in il-4-mediated phosphorylation of insulin receptor substrate-1.
SIGNOR-37362
Q14232
P05198
1
guanine nucleotide exchange factor
up-regulates activity
0.83
EIF2B converts the protein synthesis initiation factor 2 (eIF2) from an inactive GDP-bound form to an active eIF2-GTP complex owing to its guanine nucleotide exchange factor (GEF) activity.
SIGNOR-269124
P30305
P06493
2
dephosphorylation
up-regulates activity
0.829
CDC25B facilitates dephosphorylation of the key cell cycle regulator CDC2 (also called CDK1) at Tyr15 or Thr14, thereby initiating the G 2 /M transition ( xref ).|CDC25B facilitates dephosphorylation of the key cell cycle regulator CDC2 (also called CDK1) at Tyr15 or Thr14, thereby initiating the G2/M transition ( ).
SIGNOR-276969
P00533
P51692
1
phosphorylation
up-regulates
0.829
Novel activation of stat5b in response to epidermal growth factor. novel activation of stat5b in response to epidermal growth factor.
SIGNOR-113393
Q8N2Q7
Q9Y4C0
1
binding
up-regulates activity
0.829
Pre- and postsynaptic plasma membranes are always precisely aligned, and are separated by a synaptic cleft of ~20 nm. The cleft contains an undefined proteinaceous material in the middle, and is presumably bridged by synaptic cell-adhesion molecules such as Nrxns and Nlgns that align the pre- and postsynaptic elements and mediate trans-synaptic signaling.|Nlgns bind to both alpha- and beta-Nrxns with nanomolar affinities; binding involves the sixth LNS-domain of alpha-Nrxns which corresponds to the only LNS-domain of beta-Nrxns52. The binding affinities differ characteristically between various pairs of Nlgns and Nrxns, and are controlled by alternative splicing of both Nrxns and Nlgns (Figure 1c)
SIGNOR-264164
Q9P2S2
Q8NFZ4
2
binding
up-regulates activity
0.829
The neurexin–NL2 interaction is sufficient to induce GABAergic differentiation and clustering of GABAARs at postsynaptic sites
SIGNOR-265454
P06493
P30305
2
phosphorylation
up-regulates
0.829
Ser(321) is phosphorylated in mitosis by cdk1. The mitotic phosphorylation of ser(321) acts to maintain full activation of cdc25b by disrupting 14-3-3 binding to ser(323) and enhancing the dephosphorylation of ser(323) to block 14-3-3 binding to this site.
SIGNOR-167641
P58401
Q8NFZ4
2
binding
up-regulates activity
0.829
The neurexin–NL2 interaction is sufficient to induce GABAergic differentiation and clustering of GABAARs at postsynaptic sites
SIGNOR-265455
Q8NFZ4
P58401
2
binding
up-regulates activity
0.829
Pre- and postsynaptic plasma membranes are always precisely aligned, and are separated by a synaptic cleft of ~20 nm. The cleft contains an undefined proteinaceous material in the middle, and is presumably bridged by synaptic cell-adhesion molecules such as Nrxns and Nlgns that align the pre- and postsynaptic elements and mediate trans-synaptic signaling.|Nlgns bind to both alpha- and beta-Nrxns with nanomolar affinities; binding involves the sixth LNS-domain of alpha-Nrxns which corresponds to the only LNS-domain of beta-Nrxns52. The binding affinities differ characteristically between various pairs of Nlgns and Nrxns, and are controlled by alternative splicing of both Nrxns and Nlgns (Figure 1c)
SIGNOR-264161
P51148
Q15075
1
binding
up-regulates activity
0.829
The Rab5 effector early endosome antigen 1 (EEA1) is a parallel coiled coil homodimer with an N-terminal C(2)H(2) Zn(2+) finger and a C-terminal FYVE domain. Rab5 binds to independent sites at the N and C terminus of EEA1.|The results demonstrate that the C(2)H(2) Zn(2+) finger is both essential and sufficient for the N-terminal interaction with Rab5.
SIGNOR-261266
Q8NFZ4
Q9P2S2
2
binding
up-regulates activity
0.829
Pre- and postsynaptic plasma membranes are always precisely aligned, and are separated by a synaptic cleft of ~20 nm. The cleft contains an undefined proteinaceous material in the middle, and is presumably bridged by synaptic cell-adhesion molecules such as Nrxns and Nlgns that align the pre- and postsynaptic elements and mediate trans-synaptic signaling.|Nlgns bind to both alpha- and beta-Nrxns with nanomolar affinities; binding involves the sixth LNS-domain of alpha-Nrxns which corresponds to the only LNS-domain of beta-Nrxns52. The binding affinities differ characteristically between various pairs of Nlgns and Nrxns, and are controlled by alternative splicing of both Nrxns and Nlgns (Figure 1c)
SIGNOR-264156
Q8N2Q7
P58401
1
binding
up-regulates activity
0.829
Pre- and postsynaptic plasma membranes are always precisely aligned, and are separated by a synaptic cleft of ~20 nm. The cleft contains an undefined proteinaceous material in the middle, and is presumably bridged by synaptic cell-adhesion molecules such as Nrxns and Nlgns that align the pre- and postsynaptic elements and mediate trans-synaptic signaling.|Nlgns bind to both alpha- and beta-Nrxns with nanomolar affinities; binding involves the sixth LNS-domain of alpha-Nrxns which corresponds to the only LNS-domain of beta-Nrxns52. The binding affinities differ characteristically between various pairs of Nlgns and Nrxns, and are controlled by alternative splicing of both Nrxns and Nlgns (Figure 1c)
SIGNOR-264159