IdA
stringlengths 6
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| IdB
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| mechanism
stringclasses 40
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stringclasses 10
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float64 0.1
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stringlengths 10
1.63k
⌀ | signor_id
stringlengths 12
14
|
|---|---|---|---|---|---|---|---|
Q13976
|
Q9UI08
| 1
|
phosphorylation
|
down-regulates activity
| 0.2
|
Vertebrate Ena/VASP proteins are phosphorylated by PKA, as well as PKG, and the phosphorylation is required for full function in a number of cellular contexts
|
SIGNOR-268290
|
Q2NKX8
|
P53350
| 0
|
relocalization
|
up-regulates
| 0.88
|
Human pich was identified as an interaction partner and substrate of plk1. Our data indicate that plk1 prevents the association of pich with chromosome arms and restricts its localization to the kt/centromere region
|
SIGNOR-152136
|
Q00613
|
P53350
| 0
|
phosphorylation
|
down-regulates
| 0.444
|
Hsf1 was phosphorylated by plk1 at ser(216) of the dsgxxs motif during the timing of mitosis and a phospho-defective mutant form of hsf1 inhibited mitotic progression. Phosphorylated hsf1 during spindle pole localization underwent ubiquitin degradation through the scf(beta-trcp) pathway.
|
SIGNOR-180915
|
P63000
|
P31431
| 2
|
binding
|
up-regulates activity
| 0.503
|
Rac1 is associated with Sdc4 and is activated by FN binding […] We observed that over-expression of Fzd7, or stimulation with FN resulted in increased levels of active Rac1 in primary myoblasts
|
SIGNOR-255849
|
Q96LB1
|
P63096
| 2
|
binding
|
up-regulates activity
| 0.2
|
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-257059
|
P17612
|
Q14643
| 1
|
phosphorylation
|
down-regulates activity
| 0.556
|
IP(3)R-I was phosphorylated by PKA and PKG in vitro and exclusively by PKG in vivo. Sequential phosphorylation by PKA and by PKG-Ialpha in vitro showed that PKA phosphorylated the same site as PKG (presumably S(1755)) and an additional PKA-specific site (S(1589)). Phosphorylation of IP(3)R-I in microsomes by PKG, PKA, or a combination of PKG and PKA inhibited IP(3)-induced Ca(2+) release to the same extent, implying that inhibition was mediated by phosphorylation of the PKG-specific site.
|
SIGNOR-249996
|
Q92626
|
P53420
| 1
|
catalytic activity
|
up-regulates quantity by stabilization
| 0.256
|
Peroxidasin (PXDN), an ECM protein with peroxidase activity, is integral to basement membrane consolidation through catalysis of sulfilimine bonds in collagen IV. PXDN has been shown to form dityrosine crosslinks and also catalyses sulfilimine bonds, in the presence of hypohalous acids, to connect collagen IV protomers, which are an integral component of the basement membrane
|
SIGNOR-265250
|
Q96MS0
|
P23528
| 1
|
post transcriptional regulation
|
up-regulates quantity by expression
| 0.2
|
Slit2 causes the miRNA miR-182 to release cofilin1 mRNA, potentiating cofilin1 local translation and resulting in growth cone collapse. The use of morpholinos or RNAi to knockdown robo2 and robo3 in X. laevis RGCs, would be useful to further confirm that Robo2 and Robo3 are the receptors involved in Slit2-dependent cofilin1 translation.
|
SIGNOR-268379
|
O15530
|
P12931
| 0
|
phosphorylation
|
up-regulates activity
| 0.585
|
Using site-directed mutants, we show that, although phosphorylation on tyr-373/376 is important for pdk1 activity, phosphorylation on tyr-9 has no effect on the activity of the kinase. Both of these residues can be phosphorylated by v-src tyrosine kinase in vitro, and co-expression of v-src leads to tyrosine phosphorylation and activation of pdk1.
|
SIGNOR-109533
|
P62877
|
P03372
| 1
|
ubiquitination
|
down-regulates quantity by destabilization
| 0.344
|
I3C-dependent activation of the aryl hydrocarbon receptor (AhR) initiates Rbx-1 E3 ligase-mediated ubiquitination and proteasomal degradation of ERalpha protein.
|
SIGNOR-271434
|
Q00987
|
Q06187
| 0
|
phosphorylation
|
down-regulates activity
| 0.278
|
Phosphorylation of MDM2 by BTK suppresses its ubiquitination activity.
|
SIGNOR-278330
|
P07332
|
P16284
| 1
|
phosphorylation
|
up-regulates activity
| 0.276
|
PECAM-1 Is Phosphorylated by Fer and, To a Lesser Extent, by Fes. These results suggest that Fer not only functions as a tyrosine kinase for PECAM-1 but also that Fer modulates the downstream signaling of PECAM-1 by inducing phosphorylation of SHP-2 and Gab1.
|
SIGNOR-262868
|
P24941
|
Q02363
| 1
|
phosphorylation
|
down-regulates
| 0.434
|
Id2 acts by forming heterodimers that are unable to bind to specific (e-box) dna sequences. Here we show that this activity can be overcome by phosphorylation of a serine residue within a consensus target site for cyclin-dependent kinases (cdks). In vitro, id2 can be phosphorylated by either cyclin e-cdk2 or cyclin a-cdk2_
|
SIGNOR-46397
|
Q14449
|
P06213
| 2
|
binding
|
down-regulates activity
| 0.761
|
Growth factor receptor-bound protein 14 (Grb14) interacts with insulin receptor (IR) through the between PH and SH2 (BPS) domain. Grb14-IR complex formation is initiated by insulin stimulation, and the binding event results in the inhibition of insulin signalling.
|
SIGNOR-264873
|
Q9NY28
|
P00533
| 1
|
glycosylation
|
down-regulates activity
| 0.2
|
Interestingly, the O-GalNAcylation of EGFR, which is the key factor related to the metastasis cascade, was impacted by GALNT8. Furthermore, our results suggested that the GALNT8-mediated O-GalNAcylation led to the suppression of the EGFR signaling pathway and metastatic potential in breast cancer cells.
|
SIGNOR-269679
|
Q05209
|
P24941
| 0
|
phosphorylation
|
down-regulates activity
| 0.382
|
In the present study, we found that S19 site phosphorylation of PTPN12 by CDK2 discharged its antitumor activity by down-regulation of its inhibitory role in cell migration, but not affecting its other regulatory functions.
|
SIGNOR-277366
|
Q15424
|
Q13043
| 0
|
phosphorylation
|
down-regulates activity
| 0.2
|
In the present study, we demonstrate that the chromatin scaffold protein SAFB1 interacts with and is phosphorylated by MST1 and is a novel regulator of AR capable of integrating signaling between the AR and MST1 networks.
|
SIGNOR-279296
|
Q8IUH4
|
Q01726
| 1
|
palmitoylation
|
up-regulates activity
| 0.274
|
Collectively these results suggest that ZDHHC13 phosphorylation by ATR following UVB irradiation promotes its interaction with MC1R to stimulate MC1R palmitoylation.Activating MC1R palmitoylation rescues the defect of MC1R RHC variants
|
SIGNOR-273518
|
O43312
|
P63000
| 2
|
binding
|
up-regulates
| 0.2
|
Mim-b binds and activates rac via its irsp53/mim domain
|
SIGNOR-141573
|
O60674
|
O60885
| 1
|
phosphorylation
|
up-regulates quantity by stabilization
| 0.324
|
JAK2 induces tyrosine phosphorylation of BRD4 at Y97/Y98, resulting in BRD4 stabilization.
|
SIGNOR-277312
|
P18848
|
P54577
| 1
|
transcriptional regulation
|
up-regulates quantity by expression
| 0.2
|
QRICH1 promotes the expression of translation-related genes. our combined ChIP-seq and RNA-seq analyses identified that QRICH1 and ATF4 were enriched at the promoters of these specific tRNA synthetases, and that ER stress positively regulated their transcription (Fig. 4I). Together, these findings suggest that QRICH1 and ATF4 modulate tRNA metabolic processes to promote secreted protein synthesis during ER stress.
|
SIGNOR-269431
|
Q9UBS0
|
P42345
| 0
|
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
|
Q13547
|
Q96EP1
| 0
|
polyubiquitination
|
down-regulates quantity by destabilization
| 0.394
|
Histone deacetylase 1 (HDAC1), which represses transcription by deacetylating histones, was newly isolated as a Chfr-interacting protein. Chfr binds and downregulates HDAC1 by inducing its polyubiquitylation, both in vitro and in vivo. Together, these results suggest that the ubiquitin ligase activity of Chfr targets HDAC1 for degradation.
|
SIGNOR-271465
|
Q16555
|
O75116
| 0
|
phosphorylation
|
up-regulates
| 0.383
|
Rho-kinase phosphorylated crmp-2 at thr-555 in vitro.we demonstrated that crmp-2 is phosphorylated by rho-kinase in drg neurons during lpa-induced growth cone collapse.
|
SIGNOR-77543
|
Q13107
|
P31749
| 0
|
phosphorylation
|
up-regulates quantity by stabilization
| 0.465
|
AKT-mediated phosphorylation relocates nuclear USP4 to the cytoplasm and membrane and is required for maintaining its protein stability.
|
SIGNOR-273482
|
O43524
|
Q99576
| 2
|
transcriptional regulation
|
up-regulates quantity by expression
| 0.395
|
We have analyzed the promoter of human gilz (glucocorticoid-induced leucine zipper), a dexamethasone-inducible gene that is involved in regulating apoptosis, and identified six glucocorticoid (GC)-responsive elements and three Forkhead responsive elements (FHREs).
|
SIGNOR-255950
|
P04637
|
Q8IW41
| 0
|
phosphorylation
|
up-regulates
| 0.76
|
Furthermore, we show that prak activates p53 by direct phosphorylation. prak phosphorylates p53 at ser37
|
SIGNOR-152847
|
Q14680
|
Q15831
| 0
|
phosphorylation
|
up-regulates
| 0.2
|
Site-directed mutagenesis indicated that thr167 and ser171, located between the dfg and ape motifs in the activation loop or t-loop, need to be autophosphorylated for melk to be active as a protein kinase (fig. 5). These sites are conserved in all other ampk-related protein kinases (fig. 4a), and the site corresponding to thr167 has been shown to be phosphorylated by protein kinase lkb1 (5).
|
SIGNOR-141038
|
Q00987
|
P46695
| 1
|
ubiquitination
|
down-regulates quantity by destabilization
| 0.349
|
FHL2 stimulates MDM2 mediated ubiquitination of IER3 by forming a ternary complex.|Scaffold protein FHL2 facilitates MDM2 mediated degradation of IER3 to regulate proliferation of cervical cancer cells.
|
SIGNOR-278824
|
O95837
|
P25021
| 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-257424
|
O15350
|
P46937
| 2
|
binding
|
up-regulates
| 0.716
|
Yap also interacts with p73, a p53 family pro-apoptotic transcription factor, to induce expression of genes such as bax, puma and pml.
|
SIGNOR-175934
|
Q9NPB6
|
P41743
| 0
|
phosphorylation
|
up-regulates quantity by stabilization
| 0.866
|
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-276432
|
Q12879
|
Q13627
| 0
|
phosphorylation
|
up-regulates quantity
| 0.397
|
DYRK1A enhances the surface expression of GluN1 and GluN2A receptors.|Mechanistically, the DYRK1A-dependent phosphorylation of GluN2A at Ser 1048 hinders the internalization of GluN1/GluN2A, causing an increase of surface GluN1/GluN2A in heterologous systems, as well as in primary cortical neurons.
|
SIGNOR-279327
|
Q03113
|
O43603
| 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-257296
|
O00712
|
P29322
| 1
|
transcriptional regulation
|
up-regulates quantity
| 0.2
|
For example, within the NFI targetome, we identified 6 collagen genes, 13 genes encoding potassium channel or glutamate receptor subunits and a range of factors related to axon guidance (e.g. Slit1, Robo1, Epha4, Epha5, Epha8)
|
SIGNOR-268903
|
P27986
|
P00533
| 2
|
binding
|
up-regulates
| 0.81
|
The egf-r coimmunoprecipitated with p85 alpha
|
SIGNOR-121959
|
Q9NS91
|
O76064
| 2
|
binding
|
up-regulates
| 0.415
|
Rnf8 depletion also significantly reduced the accumulation of rad18 to chromatin fraction after ir
|
SIGNOR-185593
|
P46531
|
O00303
| 0
|
deubiquitination
|
up-regulates
| 0.421
|
The activated form of notch needs to be deubiquitinated before being processed by the gamma-secretase activity and entering the nucleus, where it fulfills its transcriptional function. The enzyme accounting for this deubiquitinase activity is eif3f, known so far as a translation initiation factor.
|
SIGNOR-170158
|
P53041
|
P04049
| 1
|
dephosphorylation
|
down-regulates activity
| 0.462
|
Protein phosphatase 5 (PP5) was identified as an inactivator that associates with Raf-1 on growth factor stimulation and selectively dephosphorylates an essential activating site, Ser 338. The PP5-mediated dephosphorylation of Ser 338 inhibited Raf-1 activity and downstream signalling to MEK
|
SIGNOR-248537
|
Q96N67
|
Q6ZNJ1
| 2
|
binding
|
up-regulates activity
| 0.38
|
In summary, from 129 binding partners of Nbeal2 identified by mass spectrometry, we have confirmed the interaction of 3, Dock7, Sec16a, and Vac14, by different biochemical and cellular approaches|Given the significant reduction of Dock7 levels and its altered localization in Nbeal2−/− platelets, we postulated that this canonical signaling pathway may be disrupted and set out to test this using control and Nbeal2−/− platelets.
|
SIGNOR-261891
|
P09884
|
Q7L590
| 0
|
relocalization
|
up-regulates quantity by stabilization
| 0.862
|
Mcm10 is an essential eukaryotic protein required for the initiation and elongation phases of chromosomal replication. Specifically, Mcm10 is required for the association of several replication proteins, including DNA polymerase alpha (pol alpha), with chromatin.
|
SIGNOR-261271
|
P46940
|
P12931
| 0
|
phosphorylation
|
up-regulates activity
| 0.695
|
IQGAP1 was phosphorylated exclusively on Tyr-1510 under conditions with enhanced MET or c-Src signaling, including in human lung cancer cell lines. This phosphorylation was significantly reduced by chemical inhibitors of MET or c-Src or by siRNA-mediated knockdown of MET.
|
SIGNOR-277533
|
O43283
|
Q14258
| 1
|
phosphorylation
|
up-regulates quantity by stabilization
| 0.2
|
Mechanistically, MAP3K13 phosphorylates the E3 ubiquitin ligase TRIM25 at Ser12 to decrease its polyubiquitination and proteasomal degradation.
|
SIGNOR-277456
|
Q13315
|
Q92878
| 2
|
binding
|
up-regulates
| 0.813
|
One of the earliest events is recruitment and activation of the atm at the damaged dna sites through the mre11rad50nbs1 (mrn) sensor complex. . the mre11/rad50/nbs1 (mrn) complex maintains genomic stability by bridging dna ends and initiating dna damage signaling through activation of the atm kinase.
|
SIGNOR-175053
|
Q13153
|
Q99661
| 1
|
phosphorylation
|
down-regulates
| 0.385
|
Here we found that mcak is a cognate substrate of pak1 wherein pak1 phosphorylates mcak on serines 192 and 111 both in vivo and in vitro. Furthermore, we found that pak1 phosphorylation of mcak on serines 192 and 111 preferentially regulates its microtubule depolymerization activity and localization to centrosomes
|
SIGNOR-199084
|
P49137
|
Q9UPN4
| 1
|
phosphorylation
|
down-regulates quantity
| 0.291
|
We identify CEP131 as a major Centriolar satellites-associated substrate of p38-dependent, MK2-mediated phosphorylation on two defined residues and show that these modifications promote binding to 14-3-3 proteins, in turn leading to cytoplasmic sequestration of CEP131 and associated Centriolar satellites factors.|We therefore conclude that MK2 dependent phosphorylation of CEP131 at S47 and S78 and the ensuing binding of 14-3-3 proteins play an essential role in triggering stress induced remodelling of CS.
|
SIGNOR-278181
|
P98164
|
P08253
| 2
|
binding
|
up-regulates quantity
| 0.342
|
We show that megalin/LRP-2 acts as an endocytic receptor for proMMP-2:TIMP-2 complex. We found that RAP, an antagonist of the LDL receptor family18, competed with binding of proMMP-2:TIMP-2 complex onto rat BN16 epithelial cells.
|
SIGNOR-265255
|
Q93096
|
P30291
| 0
|
phosphorylation
|
down-regulates activity
| 0.2
|
In this study , we found that WEE1 phosphorylates PRL1 and promotes PRL1 degradation .|In this study, we demonstrated that WEE1 phosphorylates and inhibits PRL1 to regulate alternative splicing of CYCD1;1 and CYCD3;1 , which may represent a new cell cycle control mechanism.
|
SIGNOR-278434
|
P31749
|
O43524
| 1
|
phosphorylation
|
down-regulates activity
| 0.91
|
Akt-dependent phosphorylation of foxo3a (thr32, ser253, and ser315 for human foxo3) enhances foxo3a/14?3?3 Interaction and promotes foxo3a nuclear export to the cytoplasm, resulting in the repression of foxo3a transcriptional function
|
SIGNOR-252523
|
Q99623
|
Q16566
| 0
|
phosphorylation
|
down-regulates
| 0.338
|
Here we show that calcium/calmodulin-dependent kinase iv (camk iv) specifically binds to the c terminus of phb2 and phosphorylates phb2 at serine 91. Camk iv effectively decreased phb2-mediated repression of mef2 activity through phosphorylation
|
SIGNOR-174437
|
P29401
|
P31749
| 0
|
phosphorylation
|
up-regulates activity
| 0.282
|
Akt phosphorylates TKT on Thr382, markedly enhancing enzyme activity and increasing carbon flow through the nonoxidative PPP, thereby increasing purine synthesis.
|
SIGNOR-265101
|
Q12955
|
Q14576
| 0
|
post transcriptional regulation
|
down-regulates quantity
| 0.25
|
NElavl (composed of Elavl2, Elavl3, and Elavl4) proteins are the RNA-binding proteins that is specifically expressed in neurons, regulate the alternative splicing of target RNAs, and promote neuronal differentiation and maturation. Here, we found that the alternative splicing of AnkyrinG exon 34 was misregulated in the cerebella of Elavl3-/- mice. AnkyrinG is an essential factor for the formation of neuronal polarity and is required for normal neuronal functions.
|
SIGNOR-266861
|
P08138
|
P22694
| 0
|
phosphorylation
|
up-regulates
| 0.625
|
Pka phosphorylates the p75 receptor and regulates its localization to lipid rafts. activation of camp?PKA Is required for translocation of p75ntr to lipid rafts, and for biochemical and biological activities of p75ntr, such as inactivation of rho and the neurite outgrowth.
|
SIGNOR-99755
|
P46937
|
P35813
| 0
|
dephosphorylation
|
up-regulates activity
| 0.269
|
Although the authors show an in vitro kinase assay where PPM1A supposedly dephosphorylates YAP on Ser127, Fig. 4A lacks a positive control to ensure that PPM1A purified from cells is active.|The protein phosphatase PPM1A dephosphorylates and activates YAP to govern mammalian intestinal and liver regeneration.
|
SIGNOR-276984
|
P55040
|
P61981
| 2
|
binding
|
up-regulates quantity by stabilization
| 0.266
|
In order to address whether Gem binds specific isoforms of 14-3-3, we determined the coassociation of Gem and 14-3-3 in the neuroblastoma cell line SY5Y. 14-3-3ζ, -γ, -τ, and -β were observed to bind to Gem. 14-3-3-bound Gem has a twofold-longer half-life than nonbound Gem (Fig. (Fig.6).6). A similar increase in protein stability following 14-3-3 binding has been described for the Wee1 kinase
|
SIGNOR-261713
|
Q8N448
|
P49757
| 1
|
polyubiquitination
|
down-regulates quantity by destabilization
| 0.605
|
Polyubiquitination of Human Numb by LNX2. The Zn-RING-Zn domain of LNX2 is a dimer and assumes a rigid elongated structure that undergoes autoubiquitination and undergoes N-terminal polyubiquitination. LNX2 can bind numb and induce its ubiquitination and subsequent proteasomal degradation
|
SIGNOR-272423
|
Q8IXH7
|
Q05086
| 0
|
ubiquitination
|
down-regulates quantity by destabilization
| 0.326
|
In this paper, we identify here trihydrophobin 1 (TH1), an integral subunit of the human negative transcription elongation factor (NELF) complex, as a novel E6-AP interaction protein and a target of E6-AP-mediated degradation. Overexpression of E6-AP results in degradation of TH1 in a dose-dependent manner, whereas knock-down of endogenous E6-AP elevates the TH1 protein level.
|
SIGNOR-271404
|
Q96RR4
|
Q00535
| 0
|
phosphorylation
|
down-regulates
| 0.2
|
Cdk5 and gsk3 phosphorylate ser-129, ser-133, and ser-137. Mutation of ser-129, ser-133, and ser-137 increases autonomous activity with little change in ca2 /cam-dependent activity.
|
SIGNOR-198111
|
P30989
|
P25098
| 0
|
phosphorylation
|
up-regulates activity
| 0.2
|
Here we report the unique phosphorylation\nof NTSR1 by GRK2 and GRK5, which belong to the GRK2 and GRK4 subfamilies,\nrespectively.
|
SIGNOR-278280
|
P42771
|
Q8IXJ9
| 0
|
transcriptional regulation
|
up-regulates quantity by expression
| 0.3
|
Modeling ASXL1 mutation revealed impaired hematopoiesis caused by derepression of p16Ink4a through aberrant PRC1-mediated histone modification. These results indicated that loss of protein interaction between Asxl1 mutant and Bmi1 affected the activity of PRC1, and subsequent derepression of p16Ink4a by aberrant histone ubiquitination could induce cellular senescence, resulting in low-risk MDS-like phenotypes in Asxl1G643fs/+ mice.
|
SIGNOR-260119
|
P35222
|
P35790
| 0
|
phosphorylation
|
down-regulates activity
| 0.286
|
The data suggest that CKI phosphorylates and destabilizes the beta-catenin degradation complex, likely through the dissociation of PP2A, providing a mechanism by which CKI stabilizes beta-catenin and propagates the Wnt signal.
|
SIGNOR-279161
|
Q96EP0
|
Q9Y6K9
| 1
|
polyubiquitination
|
up-regulates activity
| 0.849
|
Involvement of Gln271 and Asp275 of NEMO in LUBAC-mediated linear polyubiquitination.vHOIP NZF1 also recognizes NEMO, and this recognition is involved in linear polyubiquitination of NEMO. Linear chains conjugated to NEMO are recognized by NEMO in trans on another IKK complex, thereby inducing multimerization of the IKK complex and trans autophosphorylation of IKK2.
|
SIGNOR-272052
|
P06400
|
Q00535
| 0
|
phosphorylation
|
down-regulates
| 0.336
|
Phosphorylation was observed 6 hours after p25 induction and was abolished in the presence of a cdk5 inhibitor, roscovitine, which does not inhibit the usual rb cyclin-d kinases cdk4 and cdk6. Furthermore, analyses of levels and subcellular localization of cdk-related cyclins did not reveal any change following cdk5 activation, arguing for a direct effect of cdk5 activity on rb protein. Rb phosphorylation was visualized using phosphorylation-dependent antibodies (p-rbser795 and p-rbser807/811).
|
SIGNOR-134468
|
Q8IZP0
|
P00519
| 2
|
binding
|
up-regulates
| 0.88
|
Our results are in agreement with previous report showing that abi-1, the putative mouse homologue of e3b1, is a abl binding protein
|
SIGNOR-45994
|
Q86XK2
|
P04637
| 1
|
neddylation
|
down-regulates
| 0.671
|
Fbxo11 promotes the neddylation of p53 and inhibits its transcriptional activity / we found that fbxo11 also neddylates p53 on two lysines, lys-320 and lys-321
|
SIGNOR-150669
|
Q96C90
|
Q05655
| 0
|
phosphorylation
|
up-regulates activity
| 0.2
|
Recombinant tagged PHI-1 was phosphorylated by protein kinase C at two sites, one a Ser and one a Thr; phosphorylation enhanced inhibitory potency 50-fold.
|
SIGNOR-265739
|
P61224
|
Q9H4E7
| 2
|
binding
|
up-regulates activity
| 0.2
|
Mechanistic studies revealed that SLAT interacts, through its PH domain, with a key component of inside-out signaling, namely the active form of the small GTPase Rap1 (which has two isoforms, Rap1A and Rap1B). This interaction has been further shown to facilitate the interdependent recruitment of Rap1 and SLAT to the T cell immunological synapse upon TCR engagement. Furthermore, a SLAT mutant lacking its PH domain drastically inhibited LFA-1 activation and CD4(+) T cell adhesion.
|
SIGNOR-253366
|
Q8WYL5
|
O94806
| 0
|
phosphorylation
|
down-regulates activity
| 0.286
|
Active PKD Isoforms Phosphorylate and Inactivate SSH1L|Here, we show that active PKD3 also mediates SSH1L phosphorylation at Ser-978 and binding to 14-3-3, further confirming the involvement of all three PKD isoforms in negatively regulating this phosphatase
|
SIGNOR-275938
|
Q9BUB5
|
O43597
| 1
|
phosphorylation
|
down-regulates
| 0.531
|
The spry2/nedd4 association involves the ww domains of nedd4 and requires phosphorylation of the mnk2 kinase sites, ser(112) and ser(121), on spry2. mnk2 silencing decreased spry2-nedd4 interactions and also augmented the ability of spry2 to inhibit fibroblast growth factor signaling. endogenous and overexpressed nedd4 polyubiquitinate spry2 via lys(48) on ubiquitin and decrease its stability.
|
SIGNOR-188889
|
Q92934
|
P28482
| 0
|
phosphorylation
|
down-regulates activity
| 0.461
|
The rapid phosphorylation of bad following il-3 connects a proximal survival signal with the bcl-2 family, modulating this checkpoint for apoptosis.phosphorylatedBAD is bound to 14-3-3 within the cytosol, while only nonphosphorylated BAD is heterodimerized with membrane-bound BCL-XL.
|
SIGNOR-44858
|
Q92934
|
P41743
| 0
|
phosphorylation
|
down-regulates
| 0.32
|
In-vitro kinase activity assay showed that pkc-_ directly phosphorylated bad at phospho specific residues, ser-112, ser-136 and ser-155 which in turn induced inactivation of bad and disruption of bad/bcl-xl dimer
|
SIGNOR-172894
|
Q9BZE0
|
P17612
| 0
|
phosphorylation
|
down-regulates activity
| 0.283
|
Protein kinase a (pka) and glycogen synthase kinase 3beta sequentially phosphorylate gli2 at multiple sites, identified by mutagenesis, thus resulting in a reduction of its transcriptional activity
|
SIGNOR-145131
|
Q9UQM7
|
Q9UBS5
| 1
|
phosphorylation
|
down-regulates
| 0.237
|
Nmda-dependent internalization of gabab receptors requires activation of ca2+/calmodulin-dependent protein kinase ii (camkii), which associates with gabab receptors in vivo and phosphorylates serine 867 (s867) in the intracellular c terminus of the gabab1 subunit.
|
SIGNOR-166846
|
Q00535
|
P53779
| 1
|
phosphorylation
|
down-regulates activity
| 0.345
|
Here, we show that cdk5 directly phosphorylates c-Jun N-terminal kinase 3 (JNK3) on Thr131 and inhibits its kinase activity, leading to reduced c-Jun phosphorylation.
|
SIGNOR-250668
|
P23396
|
P67775
| 0
|
dephosphorylation
|
down-regulates
| 0.427
|
We identified that pp2a interacts with wild-type rps3, but not with mutants (s6a/t221a) (fig. 8), and that it associates with the n-terminal region of rps3 (fig. 2). From our results presented here, we conclude that pp2a is involved in the dephosphorylation of phosphorylated rps3 by pkc, and that serine 6 on the n-terminal region of rps3 appears to mediate the pp2a recruitment.
|
SIGNOR-137963
|
P63092
|
P34995
| 2
|
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
|
Q8N6T3
|
P84077
| 1
|
gtpase-activating protein
|
up-regulates activity
| 0.862
|
The ARFGAP molecule binds to switch 2 and helix α3 to orient ARF1 residues for catalysis, but it supplies neither arginine nor other amino acid side chains to the GTPase active site.
|
SIGNOR-261915
|
P06493
|
P17096
| 1
|
phosphorylation
|
down-regulates
| 0.384
|
Here, we found that hipk2 phosphorylates hmga1a at ser-35, thr-52, and thr-77, and hmga1b at thr-41 and thr-66. In addition, we demonstrated that cdc2, which is known to phosphorylate hmga1 proteins, could induce the phosphorylation of hmga1 proteins at the same ser/thr sites. we found that the hipk2-phosphorylated hmga1a reduced the binding affinity of hmga1a to human germ line promoter, and the drop in binding affinity induced by hipk2 phosphorylation was lower than that introduced by cdc2 phosphorylation.
|
SIGNOR-158604
|
Q93034
|
Q8WXH5
| 2
|
binding
|
up-regulates activity
| 0.493
|
SOCS7 promotes Dab1 polyubiquitylation and degradation. SOCS7-CRL5 complexes stimulate the ubiquitylation and turnover of Dab1. SOCS7, a CRL5 substrate adaptor protein, is also required for neocortical layering. SOCS7-CRL5 complexes stimulate the ubiquitylation and turnover of Dab1.
|
SIGNOR-272141
|
P01112
|
P21359
| 0
|
gtpase-activating protein
|
down-regulates activity
| 0.813
|
Nf1encodes neurofibromin, a protein with multiple functions including ras inactivation (ras gtpase-activating protein or rasgap) and adenylyl cyclase (ac) activation
|
SIGNOR-204357
|
P23760
|
Q9GZV5
| 2
|
binding
|
up-regulates
| 0.454
|
These results indicate that pax3 specifically interacts with taz both in vitro and in vivo.
|
SIGNOR-236879
|
Q01851
|
P03372
| 2
|
binding
|
up-regulates activity
| 0.552
|
The POU domain of Brn-3a and Brn-3b was shown to interact with the DNA-binding domain of the ER. Brn-3-ER interactions also affect transcriptional activity of an ERE-containing promoter, such that in estradiol-stimulated cells, Brn-3b strongly activated the promoter via the ERE, while Brn-3a had a mild inhibitory effect.
|
SIGNOR-241275
|
P36873
|
Q9UD71
| 2
|
binding
|
down-regulates activity
| 0.591
|
DARPP-32 (dopamine and cyclic AMP-regulated phospho-protein, relative molecular mass 32,000) is converted into an inhibitor of protein phosphatase 1 when it is phosphorylated by protein kinase A (PKA) at threonine 34.‚Â
|
SIGNOR-264958
|
P08575
|
Q86WV1
| 1
|
dephosphorylation
|
up-regulates activity
| 0.361
|
Mutational analysis demonstrated the pivotal role of Tyr-232 in SKAP55 in the association with CD45. In Jurkat cells, anti-CD3 antibody stimulation promoted SKAP55 tyrosine phosphorylation and translocation from the cytoplasm to the membrane. Overexpression of SKAP55 in these cells induced transcriptional activation of the IL-2 promoter, while mutant SKAP55-Y232F totally suppressed the promoter activity. Furthermore, overexpression of SKAP55-Y232F also caused the tyrosine hyperphosphorylation of Fyn with a decreased kinase activity. Thus, SKAP55 is an essential adapter to couple CD45 with the Src family kinases for dephosphorylation and, thus, positively regulates TCR signaling.
|
SIGNOR-248360
|
Q07812
|
Q9Y371
| 2
|
binding
|
up-regulates
| 0.329
|
Here, we provide evidence that bif-1 plays a regulatory role in apoptotic activation of not only bax but also bak and appears to be involved in suppression of tumorigenesis. while bif-1 did not directly interact with bak, it heterodimerized with bax on mitochondria in intact cells, and this interaction was enhanced by apoptosis induction and preceded the bax conformational change.
|
SIGNOR-141166
|
P45973
|
Q5XX13
| 2
|
binding
|
down-regulates quantity by destabilization
| 0.2
|
As expected, the SKP1 and CUL1 proteins, subunits of all F-box-containing E3 ligases, were also present in the immune complexes containing FBXO10 and BCL2. To test for FBXO10-induced ubiquitination of BCL2, 293T cells were transduced with retroviral vectors expressing Flag-tagged FBXO10, MYC-tagged BCL2, and HA-tagged ubiquitin, and cells were treated with the proteasome inhibitor PS-341 to enhance the detection of ubiquitinated proteins.Together, these data suggest that FBXO10 is a component of a ubiquitin ligase that can target BCL2 protein for degradation.
|
SIGNOR-271933
|
Q8NHY2
|
Q13085
| 1
|
ubiquitination
|
down-regulates quantity by destabilization
| 0.2
|
TRB3 appears to inhibit ACC activity by functioning as an adaptor for COP1. Taken together, these results suggest that TRB3 may promote loss of fat by mediating the COP1-dependent ubiquitination and inactivation of ACC. Taking these results together, we propose that TRB3 may protect against diet-induced obesity by stimulating fatty acid oxidation in adipose during fasting through the COP1-mediated ubiquitination and degradation of ACC (Fig. 4D).
|
SIGNOR-271598
|
P19086
|
Q9GZQ6
| 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-257103
|
P25490
|
P53350
| 0
|
phosphorylation
|
up-regulates
| 0.392
|
More recently, we identified and mapped multiple phosphorylation sites in yy1, including, threonine 39, serine 118, serine 247, threonine 348 and threonine 378. The first kinase proven to phosphorylate yy1 in vivo was plk1, which phosphorylates threonine 39 during g2/m stage of the cell cycle [25]. Ck2_ is another kinase identified as constitutively phosphorylating yy1 at serine 118. This modification protects yy1 cleavage by caspase 7 during apoptosis
|
SIGNOR-200087
|
Q07960
|
P60953
| 1
|
gtpase-activating protein
|
down-regulates activity
| 0.905
|
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-260459
|
Q13950
|
P28562
| 0
|
dephosphorylation
|
up-regulates activity
| 0.353
|
In a separate study, MKP-1 was shown to induce osteogenesis by dephosphorylating Ser125 on Runx2 isoform type II (37).|MKP-1 increases RUNX2 activity and downregulates MAPK, cyclin D1 in differentiated osteoblasts inducing growth arrest and mineralization.
|
SIGNOR-277143
|
O60266
|
P38405
| 2
|
binding
|
up-regulates activity
| 0.641
|
Subsequently, the Gaolf subunit activates the integral membrane protein adenylyl cyclase type III (AC3), leading to the conversion of adenosine triphosphate (ATP) into cyclic adenosine monophosphate (cAMP)
|
SIGNOR-278072
|
Q05655
|
P23396
| 1
|
phosphorylation
|
up-regulates activity
| 0.2
|
Here we show that PKCδ phosphorylates rpS3 resulting in its mobilization in the nucleus to repair damaged DNA
|
SIGNOR-260895
|
P49585
|
P27361
| 0
|
phosphorylation
|
down-regulates
| 0.46
|
Oxysterols inhibit phosphatidylcholine synthesis via erk docking and phosphorylation of ctp:phosphocholine cytidylyltransferase. Mutagenesis of ser315 within cctalpha was both required and sufficient to confer significant resistance to 22-hc/9-cis-ra inhibition of ptdcho synthesis.
|
SIGNOR-134841
|
P52630
|
Q7Z570
| 2
|
binding
|
up-regulates activity
| 0.2
|
Together these results indicate the formation of ZNF804A:STAT2 protein complex and its translocation from the cytoplasm into the nucleus upon IFN stimulation, suggesting that it may function as a signal transducer that activates IFN-mediated gene expression programs.
|
SIGNOR-269460
|
P19174
|
Q16288
| 2
|
binding
|
up-regulates
| 0.619
|
Unglycosylated trka core protein is phosphorylated even in the absence of ligand stimulation and displays constitutive kinase activity as well as constitutive interaction with the signaling molecules shc and plc-gamma.
|
SIGNOR-67404
|
Q86YC2
|
P38398
| 2
|
binding
|
up-regulates activity
| 0.851
|
The BRCA1-PALB2 interaction is required for homologous recombination repair.Here, we report that PALB2, the partner and localizer of BRCA2, binds directly to BRCA1, and serves as the molecular scaffold in the formation of the BRCA1-PALB2-BRCA2 complex.
|
SIGNOR-244487
|
P27361
|
Q15648
| 1
|
phosphorylation
|
up-regulates
| 0.263
|
Phosphorylation of transcriptional coactivator peroxisome proliferator-activated receptor (ppar)-binding protein (pbp). Stimulation of transcriptional regulation by mitogen-activated protein kinase
|
SIGNOR-93993
|
Q13158
|
P48729
| 0
|
phosphorylation
|
down-regulates activity
| 0.333
|
FADD is essential for death receptor (DR)-induced apoptosis.|Phosphorylation of FADD at serine 194 by CKIalpha regulates its nonapoptotic activities
|
SIGNOR-139307
|
O95551
|
Q16659
| 0
|
phosphorylation
|
up-regulates activity
| 0.377
|
ERK3 phosphorylates TDP2 and promotes its phosphodiesterase activity, thereby upregualting TDP2-mediated DNA damage response and desensitizing lung cancer cells to Top2 inhibitor-induced growth inhibition.|In the current study, we have found that ERK3, an atypical MAPK, phosphorylates TDP2 at S60 and regulates TDP2 's phosphodiesterase activity, thereby cooperatively protecting lung cancer cells against Top2 inhibitors induced DNA damage and growth inhibition.
|
SIGNOR-278245
|
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