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14
Q8IYT4
Q9UJT1
2
binding
down-regulates quantity by destabilization
0.257
Here we show that KATNAL2 is critical for numerous aspects of this developmental process, including the initiation of the axoneme from the basal body, suppression of the spermatid centriole duplication cycle, sperm nuclear sculpting via the manchette, the attachment of the acrosome to the nucleus and the tethering of elongated spermatids to Sertoli cells via the tubulobulbar complex and ultimately sperm release via spermiation. KATNAL2 does not sever microtubules composed of α- and β-tubulin but does interact with δ- and ε-tubulin
SIGNOR-267175
Q12959
P43403
1
phosphorylation
up-regulates activity
0.53
Immunoblot analysis showed that phosphorylation of the activating ZAP70 kinase domain residue Tyr 493 was decreased in the DLG1 KD cells. Similarly, the Tyr 319 residue of ZAP70 and Tyr 83 residue of TCR- ζ also showed reduced phosphorylation.
SIGNOR-274142
P04637
O14757
0
phosphorylation
up-regulates activity
0.78
Phosphorylation by chk1 of at least three of these sites, Ser366, Ser378, and Thr387, was induced by DNA damage.
SIGNOR-217861
P55317
P84022
2
binding
down-regulates activity
0.331
TGF-beta represses transcription of pulmonary surfactant protein-B gene in lung epithelial cells. Repression is mediated by SMAD3 through interactions with NKX2.1 and FOXA1, two key transcription factors that are positive regulators of SpB transcription. In this study, we found that SMAD3 interacts through its MAD domains, MH1 and MH2 with NKX2.1 and FOXA1 proteins. The sites of interaction on NKX2.1 are located within the NH2 and COOH domains, known to be involved in transactivation function.
SIGNOR-254168
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
P53350
Q49MG5
1
phosphorylation
up-regulates
0.275
We also demonstrate that asap is a novel substrate of plk1 phosphorylation and have identified serine 289 as the major phosphorylation site by plk1 in vivo. Asap phosphorylated on serine 289 is localized to centrosomes during mitosis, but this phosphorylation is not required for its plk1-dependent localization at the spindle poles. We show that phosphorylated asap on serine 289 contributes to spindle pole stability in a microtubule-dependent manner
SIGNOR-166564
Q13464
P35611
1
phosphorylation
up-regulates
0.376
Rho-associated kinase (rho- kinase), which is activated by the small guanosine triphosphatase rho, phosphorylates alpha-adducin and thereby enhances the f-actin-binding activity of alpha-adducin in vitro. Here we identified the sites of phosphorylation of alpha-adducin by rho-kinase as thr445 and thr480
SIGNOR-66996
O75525
Q8IUQ4
0
polyubiquitination
down-regulates quantity by destabilization
0.473
We found that SIAH1 bound to an octapeptide sequence in T-STAR targeting it for proteasome-dependent degradation. 
SIGNOR-272671
P21452
P20366
2
binding
up-regulates
0.874
The mammalian tachykinins include substance p, neurokinin a and neurokinin b, which exert their effects by binding to specific receptors. These tachykinin receptors are divided into three types, designated nk1, nk2 and nk3, respectively. The interaction of tachykinin with its receptor activates gq, which in turn activates phospholipase c to break down phosphatidyl inositol bisphosphate into inositol trisphosphate (ip3) and diacylglycerol (dag).
SIGNOR-44773
Q05586
Q14957
2
binding
up-regulates activity
0.612
Here, we demonstrate that PKB/Akt directly phosphorylates NR2C on serine 1096 (S1096). In addition, we identify 14-3-3epsilon as an NR2C interactor, whose binding is dependent on S1096 phosphorylation. These data are all consistent with a model in which NR1 and NR2C oligomerize, PKB phosphorylates S1096, and 14-3-3ε binds to phosphorylated NR2C thereby promoting NR2C-containing NMDA receptor surface expression in cerebellar granule cells.
SIGNOR-262621
Q8NES3
P78504
2
binding
down-regulates
0.486
Although jagged1-induced signaling was suppressed by lfng and mfng
SIGNOR-131560
Q5T0T0
P01903
1
polyubiquitination
down-regulates quantity by destabilization
0.2
Two E3 ligases, MARCH I and MARCH VIII, have been shown to polyubiquitinate lysine residue 225 in the cytoplasmic tail of I-Abeta and HLA-DRbeta. We show that lysine residue 219 in the cytoplasmic tail of DRalpha is also subject to polyubiquitination.
SIGNOR-271411
P63096
P32238
2
binding
up-regulates activity
0.252
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-257035
P11831
Q969V6
2
binding
up-regulates
0.2
Similarly, the myocd-related transcription factor (mrtf) family of proteins, mrtf-a and mrtf-b, are also involved in the transcriptional regulation of contractile gene markers as coactivators of srf.
SIGNOR-174264
P30307
P38398
0
ubiquitination
down-regulates quantity by destabilization
0.464
BRCA1 mediates cyclin B and Cdc25C ubiquitination.|Thus, BRCA1 dependent proteasomal degradation of cyclin B and Cdc25C precede the subsequent BRCA1 dependent cell cycle arrest.
SIGNOR-278623
P0C0S5
Q14493
0
translation regulation
up-regulates quantity by expression
0.2
Synthesis of mature histone mRNA requires only a single processing reaction: an endonucleolytic cleavage between a conserved stem-loop and a purine-rich downstream element to form the 3' end. The stem-loop binding protein (SLBP) is required for processing, and following processing, histone mRNA is transported to the cytoplasm, where SLBP participates in translation of the histone mRNA|We used radiolabeled probes generated by PCR targeting the open reading frame (ORF) to detect histones H2A, H2B, H3, H4, and H1 and used 7SK snRNA as a loading control (Fig. 2A). The abundance of histone H2A, H2B, H3, and H4 mRNAs is reduced to 37% to 70% of control levels in the SLBP knockdown cells when compared to the C2 control.
SIGNOR-265408
P62136
P06493
0
phosphorylation
down-regulates activity
0.575
Both of these pp1 isoforms contain an arg-pro-ile/val-thr-pro-pro-arg sequence near the c terminus, a known site of phosphorylation by cdc/cdk kinases, and phosphorylation attenuates phosphatase activity.
SIGNOR-151799
Q16543
P53041
0
dephosphorylation
down-regulates activity
0.672
Activation of protein kinase clients by the Hsp90 system is mediated by the cochaperone protein Cdc37. Cdc37 requires phosphorylation at Ser13|PP5/Ppt1 regulates phosphorylation of Ser13-Cdc37 in vivo, directly affecting activation of protein kinase clients by Hsp90-Cdc37.
SIGNOR-248539
P06241
Q03135
1
phosphorylation
down-regulates activity
0.721
Caveolin-1 is phosphorylated on tyr(14) in response to both oxidative and hyperosmotic stress. In the present paper, we show that this phosphorylation requires activation of the src family kinase fyn.Therefore,
SIGNOR-118003
P56817
P05067
1
cleavage
up-regulates activity
0.794
Beta-secretase 1 (BACE1) cleaves the type-I transmembrane protein APP to form the N-terminus of Aβ.
SIGNOR-255480
Q05513
Q5JVS0
1
phosphorylation
down-regulates activity
0.292
We found a strong phosphorylation of Ki-1/57 by PKCalphabeta, PKCdelta, PKClambda/zeta, and especially by PKCsigma, however not by PKCmi. These data show that Ki-1/57 can serve in principal as a substrate for a wide variety of different PKC isoforms but also that its phosphorylation is strongest with PKCsigma. | This suggests that the two threonine residues present in this fragment (Thr354 and Thr375) might be the main target residues for phosphorylation by PKC in vitro. | Ki-1/57 Exits the Nucleus upon PMA Activation
SIGNOR-249257
P05129
Q14155
1
phosphorylation
up-regulates
0.2
Pkc_ directly phosphorylates _pix at ser583 and indirectly at ser340 in cells. herefore, we propose that pkc_ positively modulates dopamine release through _2pix phosphorylation. The pkc_-_pix-cdc42/rac1 phosphorylation axis may provide a new therapeutic target for the treatment of parkinsonian syndrome
SIGNOR-205238
Q13535
P00519
0
phosphorylation
up-regulates
0.599
C-abl can phosphorylate atr on y291 and y310 and this phosphorylation appears to have a positive role in atr activation under genotoxic stress.
SIGNOR-167632
Q9NR30
Q8IUC6
2
binding
up-regulates activity
0.266
We demonstrated here that DDX1-DDX21-DHX36 represents a dsRNA sensor that uses the adaptor molecule TRIF to activate the NF-κB pathway and type I IFN responses in dendritic cells. Our study suggests that the DDX1-DDX21-DHX36 complex represents this missing poly I:C sensor, which uses DDX1 to bind poly I:C and uses DDX21 and DXH36 to bind TRIF. Poly I:C is a synthetic form of RNA that mimics double-stranded viral RNA.
SIGNOR-260192
Q13363
Q5H9F3
2
binding
up-regulates activity
0.437
BCoR-L1 also interacts with the CtBP corepressor through a CtBP-interacting motif in its amino terminus. Furthermore, BCoR-L1 is located on the E-cadherin promoter, a known CtBP-regulated promoter, and represses the E-cadherin promoter activity in a reporter assay.
SIGNOR-259193
Q9UM73
P49841
1
phosphorylation
up-regulates activity
0.248
It has been reported that Alk phosphorylates and activates Gsk3beta in mouse neural crest explants and neuroblastoma cell lines.|Therefore, we tested whether Alk indeed phosphorylates Y279-GSK3\u03b2 in stomach epithelial cells.
SIGNOR-280180
O95379
P04899
2
binding
up-regulates activity
0.2
TNFAIP8: a new effector for Galpha(i) coupling to reduce cell death and induce cell transformation
SIGNOR-256492
O14647
P15172
2
binding
up-regulates activity
0.2
CHD2 also showed an interaction with MyoD, a master regulator of skeletal muscle differentiation, and together MyoD and CHD2 bind to myogenic gene promoters.
SIGNOR-264525
O95837
P21728
2
binding
up-regulates activity
0.265
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-257391
P05412
Q8WYK2
2
binding
down-regulates activity
0.607
JDP2 dimerizes with other AP-1 proteins such as activating transcription factor-2 (ATF2) and Jun to repress transcription from promoters that contain a cyclic AMP-responsive element (CRE).
SIGNOR-226398
Q03113
O95136
2
binding
up-regulates
0.47
Serum-borne lysophosphatidic acid (lpa) and sphingosine 1-phosphophate (s1p) act through g12/13-coupled receptors to inhibit the hippo pathway kinases lats1/2 thereby activating yap and taz transcription co-activators, which are oncoproteins repressed by lats1/2.
SIGNOR-198556
P51878
P57764
1
cleavage
up-regulates activity
0.62
Co-expression of GSDMD with caspase-1, 4, 5 or 11 but not apoptotic caspases (caspase-2, 8 and 9) in 293T cells induced the same cleavage of GSDMD|inflammatory caspases specifically cleave GSDMD after the 272FLTD275 (or 273LLSD276) sequence |
SIGNOR-256418
O60674
P22681
0
ubiquitination
down-regulates quantity by destabilization
0.587
K63 linked poly-ubiquitination on K970 of JAK2 kinase domain is promoted by Cbl.
SIGNOR-278538
Q00535
P07101
1
phosphorylation
up-regulates activity
0.408
In addition, we demonstrate that co-expression of cdk5 and its regulatory activator p35 with TH increases the stability of TH.|We show that cdk5 phosphorylates TH at serine 31 and that this phosphorylation is associated with an increase in total TH activity.
SIGNOR-279022
Q9NZN5
Q14344
2
binding
up-regulates activity
0.772
P115 RhoGEF stimulates the intrinsic GTP hydrolysis activity of G alpha 12/13 subunits and acts as an effector for G13-coupled receptors by linking receptor activation to RhoA activation.
SIGNOR-256519
P17947
P05412
2
binding
up-regulates activity
0.555
These results indicate that AML1-ETO competes c-Jun away from binding to the β3β4 domain of PU.1. Thus, the c-Jun coactivation function of PU.1 is down-regulated and this in turn down-regulates transcriptional activity of PU.1.
SIGNOR-255660
Q16665
P27361
0
phosphorylation
up-regulates
0.695
We show that at least two different nuclear protein kinases, one of them identified as p42/p44 mapk, can modify hif-1_. Analysis of in vitro phosphorylated hif-1_ by mass spectroscopy revealed residues ser-641 and ser-643 as possible mapk phosphorylation sites these data suggest that phosphorylation of ser-641/643 by mapk promotes the nuclear accumulation and transcriptional activity of hif-1_
SIGNOR-178731
Q4KMG0
Q12982
2
binding
up-regulates activity
0.506
Bnip-2 and jlp are brought together through mutual interaction with cdo. the cdo-bnip-2 interaction stimulates cdc42 activity, which in turn promotes p38alpha/beta activity and cell differentiation.
SIGNOR-179864
P0DP23
P48454
2
binding
up-regulates
0.661
Calcium-bound calmodulin associates with calcineurin (cn), releasing the phosphatase from the repressive effects on an autoinhibitory domain.
SIGNOR-114104
Q12879
Q00535
0
phosphorylation
up-regulates activity
0.525
Here, we demonstrate that cyclin dependent kinase-5 (Cdk5) associates with and phosphorylates NR2A subunits at Ser-1232 in vitro and in intact cells. Moreover, we show that roscovitine, a selective Cdk5 inhibitor, blocks both long-term potentiation induction and NMDA-evoked currents in rat CA1 hippocampal neurons. These results suggest that Cdk5 plays a key role in synaptic transmission and plasticity through its up-regulation of NMDARs.
SIGNOR-250666
P06493
Q9GZM8
1
phosphorylation
up-regulates activity
0.66
In this case, only NudelS2 and NudelS5 were phosphorylated. Therefore, T219, S242, and T245 of Nudel were phosphorylation sites of Cdc2 in vitro. In contrast, Erk2 only phosphorylated T219 and T245. These two sites, with surrounding sequences such as PATP from residues 217 to 220 and PLTP from 243 to 246, respectively, are indeed typical MAPK sites
SIGNOR-274074
P12931
P43403
1
phosphorylation
up-regulates activity
0.479
In the cluster, Zap70 will be rapidly phosphorylated by active Src and slowly phosphorylated by autoinhibited, inactive Src.|We provide evidence that clusters harbor a positive feedback loop among Zap70, LAT, and Src-family kinases that binds phosphorylated LAT and further activates Zap70.
SIGNOR-279126
P42345
O95163
1
phosphorylation
up-regulates activity
0.2
Human ELP1 S1174 phosphorylation was triggered by insulin treatment, as shown by the specific phosphorylated (p)ELP1 (S1174) antibody, and addition of a phosphorylation-mutant variant of the ELP1 protein (ELP1(S1174A)) to ELP1-depleted BRAFV600E melanoma cells failed to rescue cell survival |In line with these findings, mTORC2 activity, but not mTORC1, was required for the insulin-induced phosphorylation of Elp1 S1174
SIGNOR-275541
P56524
Q14814
2
binding
down-regulates
0.692
We discovered that mef2 interacts with histone deacetylases (hdacs) 4 and 5, resulting in repression of the transcriptional activity of mef2.
SIGNOR-76237
P61812
P61812
2
binding
up-regulates
0.2
The active form of tgf-b is a dimer stabilized by hydrophobic interactions and usually further strengthened by an intersubunit disulfide bridge
SIGNOR-148608
P22307
Q2T9J0
0
cleavage
up-regulates activity
0.503
Here, we demonstrate that Tysnd1, a previously uncharacterized protein, is responsible both for the removal of the leader peptide from PTS2 proteins and for the specific processing of PTS1 proteins. All of the identified Tysnd1 substrates catalyze peroxisomal β-oxidation. In vitro cleavage of Acox1, Scp2 and prethiolase by recombinant Tysnd1.
SIGNOR-261055
Q13813
P42574
0
cleavage
down-regulates
0.675
Caspase-3 is required for alpha-fodrin cleavage but dispensable for cleavage of other death substrates in apoptosis.
SIGNOR-57891
P17706
P52333
1
dephosphorylation
down-regulates activity
0.697
Upon ligand binding, IL-2R , IL-6R or LeptinR , IFN-_R , IFN-_R and PRLR or growth hormone (GH) receptor associated JAKs become activated. These JAKs mediate phosphorylation of specific tyrosine residues and recruit STATs. Activated STATs are released from the receptor and translocate to the nucleus. PTP1B dephosphorylates JAK2, TYK2 and STAT5 . The 45-kDa form of TC-PTP was shown to dephosphorylate JAK1 and JAK3 as well as STAT1, STAT3 and STAT5.
SIGNOR-133078
P42574
Q92934
1
cleavage
up-regulates activity
0.536
Casp3 cleaves bad at asp-61. In addition, caspases convert bad(l) into a pro-death fragment that resembles the short splice variant.
SIGNOR-126727
P84085
O43150
0
gtpase-activating protein
up-regulates activity
0.497
Pap is a multidomain protein composed of an N-terminal alpha-helical region with a coiled-coil motif, followed by a pleckstrin homology domain, an Arf-GAP domain, an ankyrin homology region, a proline-rich region, and a C-terminal SH3 domain.  In addition, in vitro recombinant Pap exhibits strong GTPase-activating protein (GAP) activity towards the small GTPases Arf1 and Arf5 and weak activity towards Arf6.  Pap protein exhibits Arf GAP activity in vitro.
SIGNOR-269707
O00155
P63096
2
binding
up-regulates activity
0.25
GPR25 is expressed in human memory T-cells and NK-cells and identified as a primary causal gene associated with autoimmune |Within the class A GPCR family, GPR25 shares a relatively high degree of amino acid sequence identity (29e34%) with vertebrate Apelin receptor (APLNR) diseases revealed by cis-eQTL mapping based on a genome-wide association study (GWAS).
SIGNOR-272501
Q5VWQ8
Q99683
2
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
O43561
P62993
2
binding
up-regulates
0.804
Phosphorylated tyrosines 171, 191, and 226 [in LAT] bind to the SH2 domains of the Grb2 family of adaptor proteins and must be present for optimal signalling
SIGNOR-251520
Q9UKV3
P42574
0
cleavage
up-regulates
0.628
Induces apoptotic chromatin condensation after activation by casp3
SIGNOR-70800
P55291
P35222
2
binding
up-regulates activity
0.635
At its C-terminus, cadherin interacts with β-catenin, which dynamically associates with α-catenin, a direct binding partner of filamentous actin
SIGNOR-265854
Q15831
P49841
1
phosphorylation
down-regulates activity
0.378
In this regard, it was shown that LKB1 physically associates with PKC-zeta, which is known to inhibit GSK3beta kinase activity by promoting its phosphorylation.|Thus, inhibitory phosphorylation of GSK3beta by LKB1 and/or AKT may be a cardinal event leading to constitutive activation of Wnt and beta-catenin signaling (XREF_FIG).
SIGNOR-280148
P15056
P62136
0
dephosphorylation
up-regulates activity
0.294
To address whether PP1\u03b1 activates B-Raf through these inhibitory sites, we made use of B-Raf protein mutants in which an individual inhibitory site, as well as all four sites (4A), were mutated to alanine.|We confirmed that GST-B-Raf was phosphorylated by ERK2 in vitro  xref  , mainly on S151 and T753 (Fig.\u00a0 xref ), and found that PP1\u03b1 dephosphorylated B-Raf on both ERK phosphorylation sites (Fig.\u00a0 xref ).
SIGNOR-277160
P14923
P06241
0
phosphorylation
up-regulates activity
0.561
Phosphorylation of plakoglobin by Fer and Fyn kinases decreases plakoglobin-desmoplakin interaction and increases plakoglobin-α-catenin association. Fyn mainly phosphorylated Tyr549 and that it phosphorylated Tyr133 with a much lower activity
SIGNOR-251176
P54762
P45985
1
relocalization
up-regulates activity
0.2
The phosphorylated CNK1 interacts with ephrinB1. The binding of ephrinB1 to CNK1 connects RhoA and p115RhoGEF with ephrinB1-associated MKK4, promoting JNK activation and cell migration.
SIGNOR-275922
Q96FI4
Q03468
2
binding
up-regulates activity
0.344
CSB stimulates NEIL1 incision activity in vitro, and CSB and NEIL1 co-immunoprecipitate and co-localize in HeLa cells.
SIGNOR-251931
Q13501
P06493
0
phosphorylation
up-regulates
0.343
Here we show that cdk1 phosphorylates p62 in vitro and in vivo at t269 and s272, which is necessary for the maintenance of appropriate cyclin b1 levels and the levels of cdk1 activity necessary to allow cells to properly enter and exit mitosis.
SIGNOR-169012
Q14938
P41221
1
transcriptional regulation
down-regulates quantity
0.2
By integrating transcriptomic profiling (RNA-seq) of Nfia- and Nfix-deficient GNPs with epigenomic profiling (ChIP-seq against NFIA, NFIB and NFIX, and DNase I hypersensitivity assays), we reveal that these transcription factors share a large set of potential transcriptional targets, suggestive of complementary roles for these NFI family members in promoting neural development
SIGNOR-268889
P49716
P49841
0
phosphorylation
down-regulates quantity by destabilization
0.384
Phosphorylation of C/EBPdelta by GSK-3beta is required for its degradation by FBXW7alpha.
SIGNOR-279180
O14595
Q15797
1
dephosphorylation
down-regulates
0.5
In human cells, rnai-mediated depletion of scp1 and scp2 increases the extent and duration of smad1 phosphorylation in response to bmp, the transcriptional action of smad1, and the strength of endogenous bmp gene responses. The present identification of the scp family as smad c-terminal phosphatases sheds light on the events that attenuate smad signaling and reveals unexpected links to the essential phosphatases that control rna polymerase ii in eukaryotes.
SIGNOR-148434
P41182
P28482
0
phosphorylation
down-regulates
0.489
Here we show that antigen receptor activation leads to bcl-6 phosphorylation by mitogen-activated protein kinase (mapk). Phosphorylation, in turn, targets bcl-6 for rapid degradation by the ubiquitin/proteasome pathway.
SIGNOR-58481
P25054
O15169
2
binding
up-regulates activity
0.944
Axin, an inhibitor of the wnt pathway, interacts with beta-catenin, gsk-3beta and apc and reduces the beta-catenin level.
SIGNOR-60043
Q13535
Q9Y253
1
phosphorylation
up-regulates
0.415
Atr-mediated phosphorylation of dna polymerase _ is needed for efficient recovery from uv damage. We show that, after uv irradiation, pol_ becomes phosphorylated at ser601 by the ataxia-telangiectasia mutated and rad3-related (atr) kinase. Atr-dependent phosphorylation of pol_ is necessary to restore normal survival and postreplication repair
SIGNOR-171290
P04049
P01111
0
relocalization
up-regulates
0.87
The raf family of proteins (raf-1, a-raf, and b-raf) 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-175231
P62140
P35240
1
dephosphorylation
up-regulates
0.378
When serine 518 is dephosphorylated by the myosin phosphatase mypt-1-pp1?, The tumor suppressor function of merlin is activated, inhibiting the ras signaling pathway and leading to growth arrest
SIGNOR-159836
Q05655
P12830
1
phosphorylation
down-regulates activity
0.2
Phosphorylation of E-cadherin at threonine 790 by protein kinase Cδ reduces β-catenin binding and suppresses the function of E-cadherin.
SIGNOR-260893
P24941
P42771
2
binding
down-regulates
0.48
However, induction of p16(ink4a) also causes marked inhibition of cdk2 activity.
SIGNOR-64431
Q58F21
Q13541
2
binding
up-regulates quantity
0.2
It was revealed that eIF4EBP1 interacted with BRDT, a novel interacting protein. In addition, the present study further demonstrated that BRDT inhibitors PLX51107 and INCB054329 blocked the progression of RCC cells, along with suppressing eIF4EBP1 and c‑myc expression.
SIGNOR-262049
P22612
P46020
1
phosphorylation
down-regulates activity
0.325
Phosphorylation of the alpha and beta subunits by the 3',5'-cyclic adenosine monophosphate (cAMP)-dependent protein kinase (PKA) also relieves inhibition of the gamma subunit and thereby activates the enzyme.
SIGNOR-267415
Q92843
Q16611
2
binding
down-regulates
0.467
Bax is held in check by mcl1, bcl-2, and either bcl2l1 or bcl2l2, or by all four. They bind a primed conformer of bak or bax.
SIGNOR-152989
P23467
P33151
1
dephosphorylation
up-regulates activity
0.581
Because we had shown previously that VE-PTP supports VE-cadherin function when exogenously expressed in transfected cells, we expected it to be expressed at endothelial cell contacts.|Indeed, tyrosine phosphorylation of VE-cadherin is reduced by VE-PTP in COS-7 and CHO cells.
SIGNOR-277131
Q16665
O76061
1
transcriptional regulation
up-regulates quantity by expression
0.297
With the ChIP assay, we demonstrated the direct binding of HIF-1alpha to STC2 promoter. These findings support the notion that HIF-1 is a potent stimulator of STC2 expression. Collectively, this is the first report to show that STC2 was aberrantly hypermethylated in human cancer cells. The findings demonstrated that STC2 epigenetic inactivation may interfere with HIF-1 mediated activation of STC2 expression.
SIGNOR-260389
P48729
P62745
1
phosphorylation
down-regulates
0.2
Mass spectrometry analysis demonstrates that rhob is monophosphorylated by ck1, in its c-terminal end, on serine 185. lastly we show that the inhibition of ck1 activates rhob and promotes rhob dependent actin fiber formation and egf-r level.
SIGNOR-179255
P36897
Q9Y5K5
2
binding
up-regulates quantity by stabilization
0.505
Smad7 can act as an adaptor able to recruit uch37 to the type i tgf-beta receptor. Consequently, uch37 dramatically up-regulates tgf-beta-dependent gene expression by de-ubiquitinating and stabilizing the type i tgf-beta receptor.
SIGNOR-150135
Q9Y3A5
Q7Z2Z2
2
binding
up-regulates
0.2
Sbds stimulates 60s-dependent gtp hydrolysis by efl1
SIGNOR-173533
P50148
P25116
2
binding
up-regulates activity
0.582
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-257219
Q9NQS7
O96017
0
phosphorylation
up-regulates activity
0.261
Also, inhibition of Chk2 by Chk2 inhibitor II in cytokinesis after release of cells from a nocodazole-induced prometaphase block diminished INCENP localization to the midbody center in late midbodies (Fig. 1, M and N).|In turn, active Chk2 phosphorylates human INCENP at the newly identified site Ser91 to promote INCENP binding to Mklp2, resulting in recruitment of the INCENP\u2013Mklp2 complex to the midbody center through Mklp2\u2019s interaction with the midbody protein Cep55 to delay abscission.
SIGNOR-279695
Q92993
Q16539
0
phosphorylation
up-regulates activity
0.321
We found that phosphorylation of Tip60-T158 was increased by p38\u03b1 isolated from Dox- or \u03b3-radiation-treated cells over that from untreated cells (Figure xref ), indicating that DNA damage induces the protein kinase activity of p38\u03b1 towards Tip60-T158.
SIGNOR-278958
P19086
P33032
2
binding
up-regulates activity
0.25
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-257271
Q13315
P12956
1
phosphorylation
up-regulates activity
0.713
Ku70 phosphorylation occurs within minutes of genotoxic stress and involves DNA-PKcs and/or ATM kinase activities.By using specific vectors enabling the simultaneous shRNA-mediated inhibition of endogenous Ku70 and the expression of exogenous Ku70 resistant to shRNA (i.e. S27-S33-Ku70 and A27-A33-Ku70 expressing cells), we showed that phospho-Ku70 contributes to faster but error-prone DNA repair resulting in higher levels of chromosomal breaks.
SIGNOR-274020
O43293
Q00987
1
phosphorylation
up-regulates quantity by stabilization
0.342
Zip kinase was able to phosphorylate mdm2 at ser166, a site previously reported to be modified by akt kinase, thus demonstrating that zip kinase is a bona fide mdm2-binding protein.
SIGNOR-123159
P10415
Q16539
0
phosphorylation
down-regulates activity
0.334
Bcl-2 phosphorylation by p38 mapkin this study, we identify, by using mass spectrometry techniques and specific anti-phosphopeptide antibodies, ser(87) and thr(56) as the bcl-2 residues phosphorylated by p38 mapk and show that phosphorylation of these residues is always associated with a decrease in the antiapoptotic potential of bcl-2 protein.
SIGNOR-146786
P35398
Q8N2Q7
1
transcriptional regulation
up-regulates quantity by expression
0.2
Some genes which are directly regulated by RORA such as NLGN1 and NTRK2 have been shown to be associated with increased susceptibility to ASD (Correia et al. 2010; Ylisaukko-oja et al. 2005).
SIGNOR-265136
O75581
Q03135
2
binding
up-regulates
0.676
Overall, our data suggest that wnt-3a triggers the interaction of lrp6 with caveolin and promotes recruitment of axin to lrp6 phosphorylated by glycogen synthase kinase-3beta and that caveolin thereby inhibits the binding of beta-catenin to axin.
SIGNOR-148665
Q12986
P01903
1
transcriptional regulation
down-regulates quantity by repression
0.396
A novel cysteine-rich sequence-specific DNA-binding protein interacts with the conserved X-box motif of the human major histocompatibility complex class II genes via a repeated Cys-His domain and functions as a transcriptional repressor
SIGNOR-266224
P68400
Q6ZMG9
1
phosphorylation
up-regulates activity
0.2
Most of the phosphorylated residues conformed to a consensus motif for phosphorylation by casein kinase 2 (CK2), and treatment of cells with the CK2-specific inhibitor CX-4945 lowered the phosphorylation levels of CERS2, -4, -5, and -6. Phosphorylation of CERS2 was especially important for its catalytic activity, acting mainly by increasing itsVmaxvalue. 
SIGNOR-273992
Q9UQM7
P35367
1
phosphorylation
down-regulates
0.282
As we have shown previously, human h1r can be phosphorylated in vitro by several kinases includingpka, pkc, pkg, and camk ii in summary, these data suggest that thr140, thr142, ser396, ser398, and thr478 can be phosphorylated by the kinases described above (table 2).
SIGNOR-124348
Q13882
P18031
0
dephosphorylation
down-regulates activity
0.575
Using a variety of PTEN mutant constructs, we show that protein phosphatase activity of PTEN targets PTK6, with efficiency similar to PTP1B, a phosphatase that directly dephosphorylates PTK6 Y342.
SIGNOR-277082
Q16820
P05771
0
phosphorylation
down-regulates quantity
0.2
These findings suggest that activation of a protein kinase, presumably PKC, mediates PMA-induced hmeprinβ shedding. By labeling COS-1 cells transfected with mutant constructs lacking the potential phosphorylation sites, we identified Ser687 as the main 32P-acceptor. These data provide evidence that the cytoplasmic domain of hmeprinβ can function as a PKC substrate.
SIGNOR-263173
P0DP25
P00533
0
phosphorylation
down-regulates
0.382
Phosphorylation of calmodulin by the epidermal-growth-factor-receptor tyrosine kinase. Phosphorylated calmodulin does not exhibit the characteristic ca2+ shift normally observed with calmodulin in electrophoretic gels, an observation that is consistent with this modification affecting the biological activity of the molecule.
SIGNOR-266335
P04637
P50613
0
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
P12931
Q03135
1
phosphorylation
down-regulates activity
0.764
Caveolin-1 is phosphorylated on tyr(14) in response to both oxidative and hyperosmotic stress. In the present paper, we show that this phosphorylation requires activation of the src family kinase fyn
SIGNOR-118007
P54652
Q99683
2
binding
down-regulates
0.2
Coimmunoprecipitation analysis revealed a physical interaction between endogenous hsp72 and ask1 in nih 3t3 cells exposed to mild heat shock. Hsp72 blocked both the homo-oligomerization of ask1 and ask1-dependent apoptosis.
SIGNOR-94565
P50502
P34947
0
phosphorylation
up-regulates activity
0.268
An in vitro screen for novel GRK substrates revealed Hsp70 interacting protein (Hip) as a substrate. GRK5, but not GRK2, bound to and stoichiometrically phosphorylated Hip in vitro. The primary binding domain of GRK5 was mapped to residues 303-319 on Hip, while the major site of phosphorylation was identified to be Ser-346. GRK5 also bound to and phosphorylated Hip on Ser-346 in cells.we found that the phosphorylation of Ser-346 was required for proper agonist-induced internalization of the chemokine receptor CXCR4.
SIGNOR-262877
P68400
Q9BXW9
1
phosphorylation
down-regulates activity
0.2
Here, we report a cluster of phosphosites on FANCD2 whose phosphorylation by CK2 inhibits both FANCD2 recruitment to ICLs and its monoubiquitination in vitro and in vivo. We have found that phosphorylated FANCD2 possesses reduced DNA binding activity, explaining the previous observations. 
SIGNOR-276730
P07288
P12272
1
cleavage
down-regulates activity
0.422
Our study demonstrates that PTHrP is a substrate for PSA. The cleavage of the amino-terminal portion of PTHrP completely disrupts its ability to interact with the PTH/PTHrP receptor and thus inhibits its PTH-like activity. | Our data show that PSA proteolytically cleaves PTHrP (1-34) after either residue 22 or 23, generating three peptide fragments.
SIGNOR-270547