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P49356
P01112
1
null
up-regulates activity
0.46
Major investments have been made to target Ras through indirect routes. Inhibition of farnesyl transferase to block Ras maturation has failed in large clinical trials.
SIGNOR-242565
Q8N3Y1
P35568
1
binding
down-regulates quantity by destabilization
0.46
Defective IRS-1 degradation was due to attenuated expression and phosphorylation of the ubiquitin ligase substrate-targeting subunit, Fbw8. mTORC2 stabilizes Fbw8 by phosphorylation at Ser86, allowing the insulin-induced translocation of Fbw8 to the cytosol where it mediates IRS-1 degradation. 
SIGNOR-271939
Q9BYP7
Q9H2X9
1
phosphorylation
down-regulates activity
0.46
We have shown that with-no-lysine kinase 3 (WNK3) possesses several properties that suggest it could be the Cl−/volume-sensitive regulatory kinase that, in association with protein phosphatases, reciprocally modifies the phosphorylation/dephosphorylation states of the SLC12 proteins and thus their activities|WNK3 activates NKCC1/2 and NCC and inhibits the KCCs
SIGNOR-264628
Q92576
P24928
1
binding
down-regulates activity
0.46
PHF3 interacts with RNA polymerase II through the SPOC domain. PHF3 negatively regulates mRNA levels. Here, we identify PHD-finger protein 3 (PHF3) as a regulator of transcription and mRNA stability that docks onto Pol II CTD through its SPOC domain. Our data suggest that PHF3 acts as a prominent effector of neuronal gene regulation by bridging transcription with mRNA decay. PHF3 SPOC preferentially binds RNA Pol II CTD phosphorylated on Serine-2
SIGNOR-266965
P15172
P15173
1
transcriptional regulation
up-regulates quantity by expression
0.46
We conclude that MyoD is the major MRF that binds to the E-box from the myogenin promoter during differentiation.
SIGNOR-255640
Q676U5
Q00610
1
binding
up-regulates
0.46
Clathrin heavy-chain interacts with atg16l1, and is involved in the formation of atg16l1-positive early autophagosome precursors.
SIGNOR-166702
O14965
O15143
1
phosphorylation
up-regulates activity
0.46
Aurora A phosphorylates Arpc1b on threonine 21, and expression of Arpc1b but not a nonphosphorylatable Arpc1b mutant in mammalian cells leads to Aurora A kinase activation and abnormal centrosome amplification in a Pak1-independent manner.
SIGNOR-279438
P43403
Q9UQC2
1
phosphorylation
up-regulates activity
0.46
In the present study, we found that gab2 is phosphorylated by zap-70, associates with the tcr signaling complex, and acts as an inhibitory adaptor molecule via recruitment of shp-2 following tcr ligation.
SIGNOR-110731
P12931
Q16620
1
phosphorylation
up-regulates activity
0.46
Indeed, activated Src can directly phosphorylate recombinant TrkB protein in a cell-free system.|We found that both exogenous H 2 O 2 and endogenous ROS activate TrkB signaling by a Src family kinase dependent but brain derived neurotrophic factor independent mechanism in cultured rat cortical neurons.
SIGNOR-280130
Q01974
P45983
1
binding
up-regulates
0.46
Wnt5a stimulation induces activation of the c-jun n-terminal kinase jnk at the wound edge in a ror2-dependent manner, and inhibiting jnk activity abrogates wnt5a-induced lamellipodia formation and mtoc reorientation
SIGNOR-179671
Q8NG68
Q6PEY2
1
tyrosination
down-regulates
0.46
Tubulin tyrosine ligase (ttl) adds a c-terminal tyr to __tubulin as part of a tyrosination/detyrosination cycle present in most eukaryotic cells. / ttl inhibits spontaneous tubulin polymerization
SIGNOR-176924
P21917
P09471
1
binding
up-regulates activity
0.46
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-256982
P11802
Q12778
1
phosphorylation
up-regulates activity
0.46
In summary, our study showed that Cdk4 phosphorylates and activates PAX3-FOXO1, thereby promoting its oncogenic function.|These findings suggest that Cdk4 phosphorylates the Ser 430 residue of PAX3-FOXO1 in vitro .
SIGNOR-278377
P78563
P19525
1
binding
up-regulates activity
0.459
Both forms of ADAR1 show enhanced interactions with PKR at the peak of HIV infection, suggesting a role for this protein in the regulation of PKR activation.
SIGNOR-266359
Q96M02
P04637
1
polyubiquitination
up-regulates quantity by stabilization
0.459
The E3 activity of FATS is required for promoting p53 stability and activation in response to DNA damage.FATS is an E2-independent ubiquitin ligase that stabilizes p53 and promotes its activation in response to DNA damage. Here, we show that FATS acts as a p53 activator by inhibiting Mdm2 binding to p53 and stimulating non-proteolytic polyubiquitination of p53.
SIGNOR-272142
Q9Y2K7
Q04206
1
demethylation
down-regulates
0.459
Fbxl11 and nsd1 have opposite effects on nf-kb; both bind to p65 subunit after activation of nf-kb. / nsd1 activates nf-kb and reverses the inhibitory effect of fbxl11 / these data confirm that fbxl11 and nsd1 constitute an enzyme pair that methylates and demethylates p65 on k218 and 221 in response to cytokine stimulation.
SIGNOR-163384
P01148
P10275
1
binding
down-regulates activity
0.459
GnRH antagonizes testosterone activation of the human androgen receptor in SCL60 cells. Gonadotropin-Releasing Hormone Functionally Antagonizes Testosterone Activation of the Human Androgen Receptor in Prostate Cells through Focal Adhesion Complexes Involving Hic-5
SIGNOR-259267
Q02952
P17252
1
relocalization
up-regulates activity
0.459
A-kinase-anchoring protein 250 (AKAP250; gravin) acts as a scaffold that binds protein kinase A (PKA), protein kinase C and protein phosphatases, associating reversibly with the beta(2)-adrenergic receptor.
SIGNOR-271836
Q8IZU9
O14936
1
binding
up-regulates activity
0.459
A Missense De Novo Variant in the CASK-interactor KIRREL3 Gene Leading to Neurodevelopmental Disorder with Mild Cerebellar Hypoplasia. KIRREL3 is a gene important for the central nervous system development-in particular for the process of neuronal migration, axonal fasciculation, and synaptogenesis-and colocalizes and cooperates in neurons with CASK gene. 
SIGNOR-269078
P33032
P63092
1
binding
up-regulates activity
0.459
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ‚â• -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ‚â• -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ‚â• -1.0.
SIGNOR-256798
P17612
P06241
2
phosphorylation
up-regulates
0.459
The serine 21 (s21) residue of fyn is a protein kinase a (pka) recognition site within an rxxs motif of the amino terminal sh4 domain of fyn. In addition, s21 is critical for fyn kinase-linked cellular signaling. Mutation of s21a blocks pka phosphorylation of fyn and alters its tyrosine kinase activity.
SIGNOR-167147
P46934
P07948
1
polyubiquitination
down-regulates quantity by destabilization
0.459
These findings suggest that LMP2A recruits Nedd4-like ubiquitin-protein ligases and B-cell signal transduction molecules, resulting in the degradation of LMP2A and Lyn by a ubiquitin-dependent mechanism. 
SIGNOR-272558
P53350
Q13158
1
phosphorylation
down-regulates activity
0.459
Fas-associated death domain-containing protein (FADD) was first identified as an adapter molecule involved in formation of a death-inducing signaling complex upon Fas stimulation| Plk1 phosphorylates fadd at ser-194 in response to treatment with taxol Phosphorylation by polo-like kinase 1 induces the tumor-suppressing activity of FADD
SIGNOR-168204
Q13075
P55211
1
binding
down-regulates
0.459
These results demonstrate that naip is distinct from the other iaps, both in demonstrating a ligand-dependent caspase-9 interaction and in demonstrating a distinct mechanism of inhibition.
SIGNOR-127193
P34947
P61073
1
phosphorylation
down-regulates quantity
0.459
Conversely, GRK5 knock-down in cells with low WIP1 expression inhibited CXCR4 phosphorylation, increased cell membrane expression of CXCR4, and promoted medulloblastoma growth.|Transfection of GRK5 into D556-WIP1 cells increased Ser339 phosphorylation of CXCR4 and reduced proliferation.
SIGNOR-279740
Q9UI95
Q12834
1
binding
down-regulates activity
0.459
The APC is activated in mitosis and G1 by CDC20 and CDH1, and inhibited by the checkpoint protein MAD2, a specific inhibitor of CDC20. We show here that a MAD2 homolog MAD2B also inhibits APC. MAD2B directly inhibits activation of APC by CDC20 and CDH1
SIGNOR-264903
P45985
O15264
1
phosphorylation
up-regulates activity
0.459
p38-δ is activated by environmental stress, extracellular stimulants, and MAPK kinase-3, -4, -6, and -7. we investigated whether this Thr180-Gly-Tyr182 motif was essential for p38-δ activation. Taken together, these results suggest that the dual phosphorylation TGY motif is required for p38-δ activation.
SIGNOR-273956
Q2M2I8
P49757
1
phosphorylation
up-regulates
0.459
Collectively, these observations demonstrate that numb endocytic activity is regulated by aak1 and that phosphorylation may be a critical step in promoting coated pit maturation.
SIGNOR-179606
P18031
P19235
1
dephosphorylation
down-regulates activity
0.459
In vivo interaction between EPO-R and PTP1B suggested that PTP1B dephosphorylates the EPO-R intracellularly.|Protein tyrosine phosphatase 1B participates in the down-regulation of erythropoietin receptor signalling.
SIGNOR-276994
Q12913
P27361
1
dephosphorylation
down-regulates activity
0.459
Tumor suppressor density-enhanced phosphatase-1 (DEP-1) inhibits the RAS pathway by direct dephosphorylation of ERK1/2 kinases|Pulldown and in vitro dephosphorylation assays confirmed our prediction and demonstrated an overall specificity of DEP-1 in targeting the phosphorylated tyrosine 204 of ERK1/2.
SIGNOR-248707
P12931
P23743
1
phosphorylation
up-regulates
0.459
Diacylglycerol kinase-alpha phosphorylation by src on y335 is required for activation, membrane recruitment and hgf-induced cell motility.
SIGNOR-157365
P00742
P00734
1
cleavage
up-regulates activity
0.459
The present data point to key roles of FVIII and FIX in FX activation at the site of a platelet thrombus by supporting: (i) thrombin generation, (ii) thrombus growth and platelet phosphatidylserine exposure, and (iii) fibrin formation at the platelet surface. The likely mechanism is that tenase activity via FVIIIa and FIXa, which is confined to the sites of platelet thrombi, generates FXa that directly catalyzes the conversion of prothrombin into thrombin.
SIGNOR-263539
Q13283
Q9UN86
2
binding
up-regulates activity
0.459
Ras-GTPase-activating protein SH3 domain-binding protein 1 (G3BP1) is a component of SGs that initiates the assembly of SGs by forming a multimer. In this study, we examined the role of G3BP2, a close relative of G3BP1, in SG formation. Although single knockdown of either G3BP1 or G3BP2 in 293T cells partially reduced the number of SG-positive cells induced by arsenite, the knockdowns of both genes significantly reduced the number. G3BP2 formed a homo-multimer and a hetero-multimer with G3BP1. Moreover, like G3BP1, the overexpression of G3BP2 induced SGs even without stress stimuli.
SIGNOR-260862
P06493
P67870
1
phosphorylation
up-regulates
0.459
In cells, the casein kinase ii beta-subunit is phosphorylated at an autophosphorylation site and at a site (ser-209) that is maximally phosphorylated in mitotic cells. These studies provide strong biochemical evidence that p34cdc2 is the enzyme that phosphorylates ser-209 on the beta-subunit of ckii in mitotic cells.
SIGNOR-29462
Q9H0M0
Q13887
1
ubiquitination
up-regulates activity
0.459
WWP1 and Smurf2 were adopted to induce ubiquitination of endogenous KLF5 protein in cells.|WWP1 or Smurf2 degrades KLF5 by ubiquitination to repress fracture healing.
SIGNOR-278683
P41145
P08754
1
binding
up-regulates activity
0.459
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-256853
P32238
O95837
1
binding
up-regulates activity
0.459
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257361
Q13315
Q8TAQ5
1
phosphorylation
down-regulates activity
0.459
These results indicate that Apak is a genuine substrate of ATM kinase. Apak phosphorylation on Ser 68 is critical for p53-mediated apoptosis. in response to DNA damage, ATM is rapidly activated by autophosphorylation and mediates p53 activation through disruption of the Apak–p53 complex by phosphorylating Apak on Ser 68.
SIGNOR-273513
Q05397
Q8N1W1
1
phosphorylation
up-regulates activity
0.459
Importantly, FAK promotes p190RhoGEF tyrosine phosphorylation and enhances activation of RhoA ( ).|Importantly, FAK promotes p190RhoGEF tyrosine phosphorylation and enhances activation of RhoA.
SIGNOR-279271
P00519
P07203
1
phosphorylation
up-regulates activity
0.459
GPx1 also functions as a substrate for c-Abl- and Arg-mediated phosphorylation on Tyr-96. The results further show that c-Abl and Arg stimulate GPx activity and that these kinases contribute to GPx-mediated protection of cells against oxidative stress.
SIGNOR-104324
Q9UN86
Q13283
2
binding
up-regulates activity
0.459
Ras-GTPase-activating protein SH3 domain-binding protein 1 (G3BP1) is a component of SGs that initiates the assembly of SGs by forming a multimer. In this study, we examined the role of G3BP2, a close relative of G3BP1, in SG formation. Although single knockdown of either G3BP1 or G3BP2 in 293T cells partially reduced the number of SG-positive cells induced by arsenite, the knockdowns of both genes significantly reduced the number. G3BP2 formed a homo-multimer and a hetero-multimer with G3BP1. Moreover, like G3BP1, the overexpression of G3BP2 induced SGs even without stress stimuli.
SIGNOR-260863
P06241
P17612
2
phosphorylation
up-regulates activity
0.459
We found that the Src family kinase Fyn phosphorylates the catalytic subunit of PKA (PKA-C) at Y69, thereby increasing PKA kinase activity. 
SIGNOR-277410
P27361
P17535
1
phosphorylation
up-regulates
0.459
Menin binds the jun family transcription factor jund and inhibits its transcriptional activity. The menin-jund interaction blocks jun n-terminal kinase (jnk)-mediated jund phosphorylation and suppresses jund-induced transcription. We found a role for phosphorylation of the ser100 residue of jund;jund phosphorylation were prevented by inhibitors of calcium, calmodulin, or erk1/2 kinase.
SIGNOR-196034
Q14289
Q9ULH1
1
phosphorylation
down-regulates activity
0.458
The tyrosine kinase Pyk2 regulates Arf1 activity by phosphorylation and inhibition of the Arf-GTPase-activating protein ASAP1. Pyk2 directly phosphorylates ASAP1 on tyrosine residues in vitro and increases ASAP1 tyrosine phosphorylation when co-expressed in HEK293T cells.Phosphorylation of tyrosine 308 and 782 affects the phosphoinositide binding profile of ASAP1, and fluorimetric Arf-GTPase assays with purified proteins revealed an inhibition of ASAP1 GTPase-activating protein activity by Pyk2-mediated tyrosine phosphorylation.
SIGNOR-263186
Q9UBY5
P63096
1
binding
up-regulates activity
0.458
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-256890
P50613
P04637
1
phosphorylation
up-regulates
0.458
The cdk7-cych-p36 complex of transcription factor iih phosphorylates p53, enhancing its sequence-specific dna binding activity in vitro. serines 371, 376, 378, and 392 may be the potential sites for this kinase.
SIGNOR-51292
P00747
P02749
1
cleavage
down-regulates activity
0.458
Plasmin can reduce the function of human beta2 glycoprotein I by cleaving domain V into a nicked form| The cleavage site of r-Domain V and beta2GPI by plasmin was proved to be Lys 317-Thr 318 by amino acid sequence analysis of the digest and of the C-terminal peptide isolated by high-performance liquid chromatography. The cleavage was completely inhibited by plasmin inhibitor (alpha2PI). The nicked form was demonstrated to show reduced affinity for CL with a dissociation constant of one order of magnitude larger than that of the intact beta2GPI.
SIGNOR-266996
Q00535
Q9Y490
1
phosphorylation
up-regulates
0.458
Cdk5 phosphorylated talin head at ser 425, inhibiting its binding to smurf1, thus preventing talin head ubiquitylation and degradation.
SIGNOR-185210
P30542
P63096
1
binding
up-regulates activity
0.458
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-256697
P31749
P15056
1
phosphorylation
down-regulates activity
0.458
Akt phosphorylates both S364 and S428. Akt downregulates B-Raf activity in vivo
SIGNOR-251472
P41146
P08754
1
binding
up-regulates activity
0.458
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-256865
Q13315
Q15910
1
phosphorylation
down-regulates quantity
0.458
Enhancer of zeste homolog 2 (EZH2), a core catalytic component of polycomb repressive complex 2, is a new ATM kinase target, and ATM-mediated phosphorylation of EZH2 on Ser734 reduces protein stability.|We verified that S734 is the predominant ATM site on EZH2 by performing ATM in vitro kinase assays using GST-EZH2 fusion proteins as substrates (Fig. 2b). The phosphorylation signal was nearly lost when the EZH2-S734A mutant was used as substrate
SIGNOR-279586
Q9UHD9
P09651
1
binding
up-regulates quantity by stabilization
0.458
Confirmation of binding of recombinant full-length hnRNPA1 and hnRNPU proteins with ubiquilin-2 by GST-pull-down assays|Additionally, our evidence that ubiquilin-2 is in- volved in stabilizing hnRNPA1 protein
SIGNOR-262270
P06493
Q9BW19
1
phosphorylation
up-regulates quantity by stabilization
0.458
We confirmed that CDK1 phosphorylates Ser6 (Supplementary Fig S5B) and demonstrated that KIFC1 displays CDK1-mediated resistance to ubiquitination by the APC/C (Fig S5C).
SIGNOR-277294
P12931
P78536
1
phosphorylation
up-regulates activity
0.458
These data suggests that Src mediates TACE activation in mechanically stressed cardiomyocytes and this mechanism could be exploited for specific blockade of TNFalpha secretion and its detrimental effects in congestive heart failure.|We found that the non receptor tyrosine kinase Src mediates TACE activation in mechanically stretched rat cardiomyocytes by phosphorylating the Tyr 702 residue within the intracellular tail of TACE.
SIGNOR-279115
P30411
P50148
1
binding
up-regulates activity
0.458
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257090
Q02535
P15884
1
binding
down-regulates activity
0.458
All three Ids bound with high affinity to E proteins .Each Id was able to disrupt the ability of E protein-MyoD complexes to transactivate from a muscle creatine kinase reporter construct in vivo.
SIGNOR-241379
Q9UQL6
Q13950
1
deacetylation
down-regulates
0.458
Hdac4 and hdac5 deacetylate runx2 and lead to a smurf-mediated degradation
SIGNOR-145983
O14640
P05412
1
binding
up-regulates
0.458
In this study, we discovered two novel interactions between dvl and c-jun and between dvl and beta-catenin in the nucleus that mediate the formation of a dvlc-junbeta-catenintcf functional complex.
SIGNOR-178038
P00519
Q92466
1
phosphorylation
down-regulates
0.458
C-abl might act as a negative regulator of uv-ddb by phosphorylating ddb2
SIGNOR-90446
Q15139
Q13563
1
phosphorylation
up-regulates activity
0.458
Here, we report the identification of a previously unrecognized phosphorylation site within the polycystin-2 C terminus (Ser801), and we demonstrate that it is phosphorylated by protein kinase D. Phosphorylation at this site was significantly increased in response to serum and epidermal growth factor stimulation.We confirmed previous studies showing that PC2 mediated Ca2+ release from the ER can be stimulated by ATP.Phosphorylation at Ser801 seems to be permissive for this activity without altering the subcellular localization nor homophilic and heterophilic (with PC1) interactions of wild-type PC2.
SIGNOR-259829
Q7Z6I6
P60953
1
gtpase-activating protein
down-regulates activity
0.458
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-260487
Q06710
P01266
1
transcriptional regulation
up-regulates quantity by expression
0.458
The transcription factor Pax8 plays an important role in the expression of the differentiated phenotype of thyroid follicular cells. It has recently been shown that Pax8 is necessary for thyroglobulin (Tg) gene expression.
SIGNOR-251998
P12931
P15529
1
phosphorylation
up-regulates activity
0.458
Src kinase phosphorylates CD46 at Y354 of the Cyt2 isoform in vitro.
SIGNOR-280127
P31751
Q9Y4I1
1
phosphorylation
up-regulates activity
0.458
Here we identify an Akt consensus phosphorylation motif in the actin-based motor protein myosin 5a and show that insulin stimulation leads to phosphorylation of myosin 5a at serine 1650. This Akt-mediated phosphorylation event enhances the ability of myosin 5a to interact with the actin cytoskeleton.Taken together, these data indicate that myosin 5a is a newly identified direct substrate of Akt2 and, upon insulin stimulation, phosphorylated myosin 5a facilitates anterograde movement of GLUT4 vesicles along actin to the cell surface.
SIGNOR-262632
Q9Y4K3
P42336
1
ubiquitination
up-regulates activity
0.458
In contrast to NEDD4L, overexpression of TRAF6 increases the stability of PIK3CA protein and promotes PI3K activation.|TRAF6 ubiquitinates PIK3CA in vivo.
SIGNOR-278727
O14936
Q16650
1
binding
up-regulates
0.458
Here we report that, through its guanylate kinase domain, CASK interacts with Tbr-1, a T-box transcription factor that is involved in forebrain development. CASK enters the nucleus and binds to a specific DNA sequence (the T-element) in a complex with Tbr-1. CASK acts as a coactivator of Tbr-1 to induce transcription of T-element containing genes, including reelin, a gene that is essential for cerebrocortical development.
SIGNOR-266835
Q15669
P43403
1
binding
up-regulates activity
0.458
These findings suggest that RhoH is a critical regulator of thymocyte development and TCR signaling by mediating recruitment and activation of Zap70.
SIGNOR-259084
Q16539
Q15075
1
phosphorylation
up-regulates activity
0.458
We found that p38alpha can phosphorylate the rab5 effectors eea1 and rabenosyn-5 on thr-1392 and ser-215, respectively, and these phosphorylation events regulate the recruitment of eea1 and rabenosyn-5 to membranes
SIGNOR-140082
Q9UKT4
Q9UJX3
1
binding
down-regulates
0.458
Emi1 can inhibit apc already activated by cdc20 or cdh1.
SIGNOR-113382
Q05655
Q9NRY6
1
phosphorylation
up-regulates
0.457
Ad198-activated pkc-delta induces phosphorylation of mitochondrial pls3 at thr21;pls3 is a critical downstream effector of pkc-delta in ad198-induced apoptosis.
SIGNOR-140759
P43115
P08754
1
binding
up-regulates activity
0.457
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-256859
Q01860
P31749
2
transcriptional regulation
down-regulates quantity by repression
0.457
Furthermore, in ECCs, unphosphorylated Oct4 bound to the AKT1 promoter and repressed its transcription.
SIGNOR-252635
P34995
P63092
1
binding
up-regulates activity
0.457
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ‚â• -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ‚â• -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ‚â• -1.0.
SIGNOR-256811
P49841
P17676
1
phosphorylation
up-regulates activity
0.457
We found that expression of srebf1a depended on GSK3β activity and that GSK3β activity was necessary for C/EBPβ phosphorylation at Thr188
SIGNOR-251644
P31749
Q01860
2
phosphorylation
up-regulates quantity by stabilization
0.457
Here we show that in ECCs, Akt phosphorylated the master pluripotency factor Oct4 at threonine 235, and that the levels of phosphorylated Oct4 in ECCs correlated with resistance to apoptosis and tumorigenic potential. Phosphorylation of Oct4 increased its stability and facilitated its nuclear localization and its interaction with Sox2, which promoted the transcription of the core stemness genes POU5F1 and NANOG.
SIGNOR-252545
Q9UPN9
P35222
1
ubiquitination
down-regulates quantity by destabilization
0.457
TRIM33 ubiquitylates nuclear beta-catenin.|Tumour suppressor TRIM33 targets nuclear beta-catenin degradation.
SIGNOR-278578
P24941
P18858
1
phosphorylation
up-regulates activity
0.457
We show that three residues (ser51, ser76, and ser91), which are part of cyclin-dependent kinase sites, are phosphorylated in a cell cycle-dependent manner.
SIGNOR-103254
Q9Y3V2
Q16665
1
sumoylation
up-regulates
0.457
Rsume,_a small_rwd-containing protein, enhances sumo conjugation and stabilizes hif-1alpha during hypoxia
SIGNOR-158590
P00441
Q9BUN8
1
binding
down-regulates activity
0.457
Various proteins involved in ERAD have been identified recently (Meusser et al. 2005). Among them, components of the retro-translocation machinery including ATPase p97, its cofactors Ufd1 and Npl4, and the ER membrane proteins Derlin-1 and VIMP are of key importance to ERAD function |Here we show that SOD1(mut) specifically interacted with Derlin-1, a component of endoplasmic reticulum (ER)-associated degradation (ERAD) machinery and triggered ER stress through dysfunction of ERAD.
SIGNOR-262785
Q5JU85
P62330
1
guanine nucleotide exchange factor
up-regulates activity
0.457
Here, we characterized IQ-ArfGEF/BRAG1, a guanine nucleotide exchange factor (GEF) for Arf6, in the mouse brain. In vivo Arf pull down assay demonstrated that IQ-ArfGEF/BRAG1 activated Arf6 more potently than Arf1.IQ-ArfGEF/BRAG1 is a guanine nucleotide exchange factor for Arf6 that interacts with PSD-95 at postsynaptic density of excitatory synapses. Taken together, IQ-ArfGEF/BRAG1 forms a postsynaptic protein complex containing PSD-95 and NMDA receptors at excitatory synapses, where it may function as a GEF for Arf6.
SIGNOR-264906
P68400
Q9UBF6
1
phosphorylation
up-regulates
0.457
Ckbbp1 is phosphorylated in vivo and threonine to alanine mutation at residue 10 abrogates the phosphorylation of ckbbp1 observed in vivo, indicating that ckii is a major kinase that is responsible for in vivo phosphorylation of ckbbp1. As compared with the wild-type ckbbp1 or ckbbp1t10e (in which threonine 10 is replaced by glutamate), overexpression of nonphosphorylatable ckbbp1 (ckbbp1t10a) results in accumulation of ikappabalpha and p27kip1.
SIGNOR-101187
P35367
O95837
1
binding
up-regulates activity
0.457
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257425
P28482
P37231
1
relocalization
down-regulates
0.457
The genomic activity of ppargamma is modulated, in addition to ligand binding, by phosphorylation of a serine residue by mapks, such as extracellular signal-regulated protein kinases-1/2 (erk-1/2), or by nucleocytoplasmic compartmentalization through the erk activators mapk kinases-1/2 (mek-1/2). These mapks phosphorylate (in humans) ser 84 in the ppargamma1 and ser 114 in ppargamma2 isoform
SIGNOR-179400
P62837
Q9C035
1
binding
up-regulates activity
0.457
Here, we show that TRIM5alpha functions as a RING-finger-type E3 ubiquitin ligase both in vitro and in vivo and ubiquitinates itself in cooperation with the E2 ubiquitin-conjugating enzyme UbcH5B. 
SIGNOR-271670
P49840
Q07820
1
phosphorylation
down-regulates quantity by destabilization
0.457
 MCL-1 was phosphorylated by GSK-3 at a conserved GSK-3 phosphorylation site (S159). Glycogen Synthase Kinase-3 Regulates Mitochondrial Outer Membrane Permeabilization and Apoptosis by Destabilization of MCL-1. threonine 163, which represents the GSK-3 priming phosphorylation in this protein
SIGNOR-251217
P29350
P40763
1
dephosphorylation
down-regulates
0.457
Stat3 may also be a substrate of shp1
SIGNOR-178699
Q13114
O43318
1
ubiquitination
up-regulates activity
0.457
Biological investigations demonstrated that TRAF3 activates TAK1 protein kinase activity via a direct binding to TAK1, then the RING finger of TRAF3 ubiquitinates TAK1, leading to TAK1 phosphorylation and activation.|TRAF3 activates TAK1 through ubiquitination.
SIGNOR-278787
Q92833
P43694
1
binding
down-regulates activity
0.456
JMJ physically associates with Nkx2.5 and GATA4 in vitro and in vivo as determined by glutathione S-transferase pull-down and immunoprecipitation assays. we show that JMJ represses ANF gene expression by inhibiting transcriptional activities of Nkx2.5 and GATA4.
SIGNOR-224697
Q99942
Q7Z434
1
ubiquitination
down-regulates quantity by destabilization
0.456
In this study, we showed that the E3 ubiquitin ligase RING-finger protein 5 (RNF5) interacted with VISA at mitochondria in a viral infection-dependent manner. Domain mapping experiments indicated that the C-terminal transmembrane domain of VISA was required for its interaction with RNF5. RNF5 targeted VISA at K362 and K461 for K48-linked ubiquitination and degradation after viral infection, whereas knockdown of RNF5 reversed virus-induced downregulation of VISA at the early phase. 
SIGNOR-271489
Q92633
P30679
1
binding
up-regulates activity
0.456
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257282
Q14155
Q5S007
2
binding
up-regulates
0.456
Arhgef7 is interacting with lrrk2 in vitro and in vivo. Gtpase activity of full-length lrrk2 increases in the presence of recombinant arhgef7. Arhgef7 might act as a guanine nucleotide exchange factor for lrrk2
SIGNOR-169217
O95714
Q96JN8
1
polyubiquitination
down-regulates quantity by destabilization
0.456
NEURL4 is a substrate of HERC2, and together these results indicate that the NEURL4-HERC2 complex participates in the ubiquitin-dependent regulation of centrosome architecture.
SIGNOR-272921
P49841
P15941
1
phosphorylation
down-regulates activity
0.456
GSK3beta binds directly to an STDRSPYE site in MUC1 and phosphorylates the serine adjacent to proline. Phosphorylation of MUC1 by GSK3beta decreases binding of MUC1 to beta-catenin in vitro and in vivo.
SIGNOR-249356
O96014
O15146
2
binding
up-regulates
0.456
Musk has an extracellular region with homology to the frizzled crd,binding of which by wnt11 stimulates a pcp-like pathway during neuromuscolar development. Here, we show that in vivo, wnt11r and wnt4a initiate musk translocation from muscle membranes to recycling endosomes we provide evidence that wnt9a and wnt11 bind directly to the extracellular domain of musk, to induce musk dimerization and subsequent tyrosine phosphorylation of the kinase
SIGNOR-199641
P61019
P41743
1
binding
down-regulates activity
0.456
Rab2 Binds to the PKCι/λ Regulatory Domain and Inhibits PKCι/λ-dependent GAPDH Phosphorylation
SIGNOR-261301
P06239
P46531
1
binding
up-regulates
0.456
Endogenous notch-1 associates with p56(lck) and pi3k. p56(lck) is required for the notch-1-mediated activation of akt/pkb function
SIGNOR-118902
P08575
P52333
1
dephosphorylation
down-regulates activity
0.456
CD45 is a JAK phosphatase and negatively regulates cytokine receptor signalling
SIGNOR-248359
P01106
P09651
1
transcriptional regulation
up-regulates quantity by expression
0.456
We also demonstrate that the oncogenic transcription factor c-Myc upregulates transcription of PTB, hnRNPA1 and hnRNPA2,
SIGNOR-268690
Q9UHD2
P25963
1
phosphorylation
down-regulates quantity by destabilization
0.456
Nuclear factor-kappaB activation depends on phosphorylation and degradation of its inhibitor protein, IkapapB. TBK-1 and IKK-i phosphorylate Ser36 of IkappaBalpha.
SIGNOR-246643