IdA
string
IdB
string
labels
int64
mechanism
string
effect
string
score
float64
sentence
string
signor_id
string
P09769
Q9UK17
1
phosphorylation
up-regulates activity
0.2
These results indicate that Y108 (for Src-family kinases) and Y136 (for EGFR kinase) are involved in the tyrosine phosphorylation of hKv4.3 channels.
SIGNOR-276394
Q15796
O15194
0
dephosphorylation
down-regulates activity
0.498
Dephosphorylation of Smad2/3 Linkers by SCP2 and SCP3|MAPK-mediated linker phosphorylation appears to have a dual role in Smad2/3 regulation. Mitogens and hyperactive Ras result in extracellular signal-regulated kinase (ERK)-mediated phosphorylation of Smad3 at Ser-204, Ser-208, and Thr-179 and of Smad2 at Ser-245/250/255 and Thr-220. Mutation of these sites increases the ability of Smad3 to activate target genes, suggesting that MAPK phosphorylation of Smad3 is inhibitory (11, 12). However, in contrast, ERK-dependent phosphorylation of Smad2 at Thr-8 enhances its transcriptional activity
SIGNOR-248310
P11362
Q15118
1
phosphorylation
up-regulates
0.347
Mitochondrial pdhk1 is tyrosine phosphorylated and activated by fgfr1 in cancer cells further mass spectrometric analysis identified three tyrosine residues of pdhk1, including y136, y243 and y244, that are phosphorylated by fgfr1
SIGNOR-193454
Q8IZP0
P60484
0
dephosphorylation
down-regulates quantity by destabilization
0.241
After dephosphorylation by PTEN, Abi1 is degraded by calpains.|We demonstrate that PTEN dephosphorylation of Abi1 at Y213 and S216 results in Abi1 degradation through the calpain pathway.
SIGNOR-276948
P02533
P06850
0
transcriptional regulation
down-regulates quantity by repression
0.2
CRH stimulated the expression of cytokeratin 1 and involucrin, and inhibited cytokeratin 14 on both mRNA and protein levels.
SIGNOR-251899
Q9UHD2
P12830
1
phosphorylation
down-regulates activity
0.272
Inhibition of TBK1 increases association of Cdh1 with APC1.|It was found that TBK1 phosphorylates both Cdc20 as well as Cdh1 (Figure 2F).
SIGNOR-278996
Q9NPH5
P06241
0
phosphorylation
down-regulates activity
0.271
We found that direct phosphorylation of tyrosine 566 on NOX4 was critical for this FYN-mediated negative regulation.
SIGNOR-277273
Q9Y222
P07996
1
transcriptional regulation
up-regulates quantity by expression
0.2
 Notably, amphiregulin (Areg), thrombospondin-1 (Tsp-1), JunB, Egr1, adrenomedullin (Adm), Bcl-3 and methyl-CpG binding domain protein 1 (Mbd1) were downregulated in the lungs from Dmp1-null mice while Gas1 and Ect2 genes were upregulated. 
SIGNOR-261587
Q13237
P48764
1
phosphorylation
down-regulates activity
0.377
CGMP and cGKII increased NHE3 phosphorylation at three sites (rabbit Ser (554), Ser (607), and Ser (663), equivalent to mouse Ser (552), Ser (605), and Ser (659)), all of which had to be present at the same time for cGMP to inhibit NHE3.|cGMP and cGKII rapidly inhibited NHE3, which was associated with reduced surface NHE3.
SIGNOR-280096
P49336
Q01094
1
phosphorylation
down-regulates
0.483
E2F1 activity is also repressed by cyclin-dependent kinase-8 (CDK8), a colorectal oncoprotein. Elevated levels of CDK8 protect beta-catenin/TCF-dependent transcription from inhibition by E2F1.
SIGNOR-181078
O76070
P25098
0
phosphorylation
down-regulates activity
0.2
GRK-mediated phosphorylation inhibits synuclein's interaction with both phospholipids and PLD2. Mutation of Ser124 dramatically inhibits γ-synuclein phosphorylation by GRK2
SIGNOR-251204
Q14004
P24928
1
phosphorylation
up-regulates activity
0.541
Together, these studies demonstrate the important, yet largely redundant, role for CDK12 and CDK13 for the regulation of POLII CTD phosphorylation at multiple residues, as well as the global role for both of these kinases in regulating POLII occupancy across the genome.|CDK12 and CDK13 are thus evolutionarily related and structurally similar kinases, and biochemical assays have demonstrated that both have POLII C-terminal domain (CTD) kinase activity and the ability to phosphorylate the Ser2 residue of the repetitive CTD heptad sequence
SIGNOR-273054
P38398
Q13535
0
phosphorylation
up-regulates activity
0.8
Brca1 is phosphorylated at ser-1423 and ser-1524 after ir and uv;however, ser-1387 is specifically phosphorylated after ir, and ser-1457 is predominantly phosphorylated after uv.atr controls brca1 phosphorylation in vivo. Taken together, our results support a model in which atm and atr act in parallel but somewhat overlapping pathways of dna damage signaling but respond primarily to different types of dna lesion.
SIGNOR-106432
P28482
Q99814
1
phosphorylation
up-regulates quantity by stabilization
0.25
The activation of ERK1/2 upon hypoxia promoted HIF-2alpha phosphorylation, enhancing its interaction with USP33.Here, we identified USP33 as essential deubiquitinase that stabilizes HIF-2alpha protein in an ERK1/2-dependent manner to promote hypoxia response in cancer cells.
SIGNOR-277585
P17655
P10636
1
cleavage
down-regulates activity
0.433
Besides tau phosphorylation, calpain activation might play a role in tau-mediated neurodegeneration by inducing tau cleavage. In vitro studies have shown that both fetal and adult tau isoforms are rapidly proteolyzed by calpains
SIGNOR-251611
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
P06241
P51812
1
phosphorylation
up-regulates
0.326
Epidermal growth factor stimulates rsk2 activation through activation of the mek/erk pathway and src-dependent tyrosine phosphorylation of rsk2 at tyr-529. By mass spectroscopy-based studies, we identified src tyrosine kinase family members src and fyn as upstream kinases of rsk2 tyr-529.
SIGNOR-160048
Q8IWW6
P63000
1
gtpase-activating protein
down-regulates activity
0.546
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-260469
P43699
P07202
1
transcriptional regulation
up-regulates quantity by expression
0.379
TSH regulates TPO expression through the cAMP pathway and acts with thyroid-specific transcription factors such as TTF-1, TTF-2 and Pax-8.
SIGNOR-267278
Q12888
P53350
0
phosphorylation
down-regulates activity
0.596
Here we show that 53BP1 is phosphorylated during mitosis on two residues, T1609 and S1618, located in its well-conserved ubiquitination-dependent recruitment (UDR) motif.|Dephosphorylation enables the recruitment of 53BP1 to double-strand DNA breaks |Addition of the inhibitors for PLK1 and the p38 MAPK leads to a complete loss of pT1609/pS1618 signal within 3 hr in mitotic cells
SIGNOR-264413
P30304
O96017
0
phosphorylation
down-regulates quantity by destabilization
0.843
We show that IR-induced destruction of Cdc25A requires both ATM and the Chk2-mediated phosphorylation of Cdc25A on serine 123.
SIGNOR-106808
P14598
P05771
0
phosphorylation
up-regulates
0.565
Phosphopeptide mapping of p47(phox) showed that, as opposed to pkc zeta, pkc alpha, beta ii, and delta are able to phosphorylate all the major pkc sites. The use of p47(phox) mutants identified serines 303, 304, 315, 320, 328, 359, 370, and 379 as targets of pkc alpha, beta ii, and delta.Taken together, these results suggest that pkc alpha, beta ii, delta, and zeta expressed in human neutrophils can individually phosphorylate p47(phox) and induce both its translocation and nadph oxidase activation.
SIGNOR-89197
Q96JP5
Q99558
1
ubiquitination
up-regulates
0.5
Zfp91 interacts with and promotes the lys(63)-linked ubiquitination of nik and subsequent processing of p100 to p52.
SIGNOR-167331
Q92769
P29475
0
s-nitrosylation
down-regulates activity
0.265
we found that restoration of NO signaling in vivo, by adenoviral-mediated expression of a constitutively active endothelial NOS mutant in MDX muscles, and in vitro, by exposing MDX-derived satellite cells to NO donors, resulted in HDAC2 blockade by cysteine S-nitrosylation
SIGNOR-236919
P00533
Q14457
1
phosphorylation
down-regulates activity
0.521
The mechanism by which EGFR suppresses Beclin 1 function involves EGFR interaction with two domains (BH3 and ECD) of Beclin 1; EGFR mediated multisite tyrosine phosphorylation of Beclin 1 on residues Y229, Y233 and Y352; and EGFR mediated alterations in the Beclin 1 interactome (increased binding to the negative regulators, Bcl-2 and Rubicon, and decreased binding to the VPS34 lipid kinase).|Thus, EGFR signaling suppresses autophagy via its interaction with Beclin 1 during normal mitogenic signaling as well as during aberrant cell proliferation in cancer cells.
SIGNOR-278357
Q9NRM7
P38936
1
phosphorylation
down-regulates quantity
0.417
Phosphorylation by Lats2 induces degradation of p21 and promotes apoptosis.|Subsequently, Lats2 phosphorylates p21 at S146.
SIGNOR-279530
P15941
P00533
0
phosphorylation
up-regulates activity
0.577
We also show that the activated egf-r phosphorylates the muc1 cytoplasmic tail on tyrosine at a yekv motif that functions as a binding site for the c-src sh2 domain. The results demonstrate that egf-r-mediated phosphorylation of muc1 induces binding of muc1 to c-src in cells
SIGNOR-109538
Q14493
P16104
1
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-265405
Q14653
P01574
1
transcriptional regulation
up-regulates quantity by expression
0.665
Similarly, exogenous expression of wild-type Pin1 suppressed TLR3-mediated, IRF3-dependent activation of the IFN-beta promoter and reduced IFN-beta secretion in culture supernatants
SIGNOR-252257
P06493
O95997
1
phosphorylation
up-regulates
0.598
Hpttg is phosphorylated by cdc2 at ser165 these results suggest that hpttg is induced by, and may have a role in, regulatory pathways involved in the control of cell proliferation.
SIGNOR-74619
P11802
P43694
1
phosphorylation
up-regulates activity
0.356
In addition, we have shown that CDK4 can enhance cardiogenic activity of GATA4 (XREF_FIG).|The physical and functional interactions between GATA4 and Cyclin D2 depend on phosphorylation of Ser 160 of GATA4, which can be mediated in vitro by CDK4.
SIGNOR-279148
Q86V86
Q92934
1
phosphorylation
down-regulates activity
0.346
Pim kinases phosphorylate multiple sites on Bad and promote 14-3-3 binding and dissociation from Bcl-XL. pim kinases are constitutively active when expressed in HEK-293 cells and are able to phosphorylate the Bcl-2 family member Bad on three residues, Ser112, Ser136 and Ser155 in vitro and in cells.
SIGNOR-250399
P16284
P41240
0
phosphorylation
up-regulates activity
0.55
We demonstrated that phosphorylation of PECAM-1 by Src or Csk family kinases was sufficient to trigger its association with SHP-2. Moreover, it was able to promote binding of PECAM-1 to SHP-1, a SHP-2-related protein-tyrosine phosphatase expressed in hemopoietic cells. Taken together, these findings indicated that the Src and Csk families of kinases are strong candidates for mediating tyrosine phosphorylation of PECAM-1 and triggering its association with SH2 domain-containing phosphatases under physiological circumstances.
SIGNOR-262741
Q12888
Q13315
0
phosphorylation
up-regulates
0.873
Here we report phosphorylation of 53bp1 at several novel residues, using mass spectrometry and phospho-specific antibodies, and show that ionising radiation-stimulated phosphorylation of these residues requires atm.
SIGNOR-197615
Q15759
P00533
1
phosphorylation
down-regulates
0.334
P38 map kinase mediates stress-induced internalization of egfrthe underlying mechanism entails phosphorylation of egfr at a short segment (amino acids 1002-1022) containing multiple serines and threonines, as well as phosphorylation of two rab5 effectors, eea1 and gdi.
SIGNOR-149086
Q96KS0
P45984
0
phosphorylation
up-regulates activity
0.2
Interestingly, we found that docetaxel induced JNK2 activation increased phosphorylation of PHD1 at Ser 74 and Ser 162 in hypoxic cancer cells (XREF_FIG).
SIGNOR-279077
Q9BUB5
P28482
0
phosphorylation
up-regulates
0.594
We have identified a new subfamily of murine serine/threonine kinases, whose members, map kinase-interacting kinase 1 (mnk1) and mnk2, bind tightly to the growth factor-regulated map kinases, erk1 and erk2erk and p38 phosphorylate mnk1 and mnk2, which stimulates their in vitro kinase activity toward a substrate, eukaryotic initiation factor-4e (eif-4e).
SIGNOR-48298
P13639
P67775
0
dephosphorylation
up-regulates
0.404
Protein phosphatases-2a and -2c (pp-2a and pp-2c) can each efficiently dephosphorylate phosphorylated eef-2
SIGNOR-38566
Q05209
P04626
1
dephosphorylation
down-regulates activity
0.619
In MDA-MB-231 cells, a human triple negative breast cancer cell line, phosphorylation of PTPN12 on Ser 19 was increased in response to cyclin dependent kinase 2 (CDK2), and this impaired PTPN12 's ability to dephosphorylate HER2 on Y1196.|PTPN12 negatively regulates Her2, by dephosphorylation on Tyr 1196 on Her2.
SIGNOR-277038
Q14004
Q86VE9
1
phosphorylation
down-regulates quantity by destabilization
0.2
In addition, CDK13-KD disrupted Nef downregulation of SERINC5 from the cell surface, whereas CDK12-KD did not (Figures 2D and 2E).|Thus, S360 phosphorylation increases interactions between Nef and SERINC5 and initiates the destruction of SERINC5 by the endocytic machinery.|Thus, we conclude that CycK/CDK13 phosphorylates the S360 residue of SERINC5.
SIGNOR-278918
Q63HK5
O00213
0
relocalization
up-regulates activity
0.366
We carried out yeast two-hybrid studies with a PTB domain of FE65, focusing on those genes that might be involved in nuclear signaling, and identified and validated Teashirt proteins as FE65 interacting proteins in neurons. Using reporter systems, we observed that FE65 could simultaneously recruit SET, a component of the inhibitor of acetyl transferase, and Teashirt, which in turn recruited histone deacetylases, to produce a powerful gene-silencing complex.
SIGNOR-264813
P06127
P06239
0
phosphorylation
up-regulates activity
0.541
Tyrosine phosphorylation of cd5 requires lck activity. We propose that t cell activation mediates cd5 tyrosine phosphorylation at residues y429 and y463 mainly through the activation of lck
SIGNOR-106799
P60510
Q12888
1
dephosphorylation
up-regulates activity
0.357
Here we show that 53BP1 is phosphorylated during mitosis on two residues, T1609 and S1618, located in its well-conserved ubiquitination-dependent recruitment (UDR) motif.|Dephosphorylation enables the recruitment of 53BP1 to double-strand DNA breaks |Depletion of PP4C, or PP4R3beta, causes persistence of phospho-T1609 and phospho-S1618
SIGNOR-264450
Q8WXX7
O15409
0
transcriptional regulation
up-regulates quantity by expression
0.325
By interacting with CASK, TBR1 regulates several ASD candidate genes, such as GRIN2B, AUTS2 and RELN—all of which are recurrently mutated in ASD. In areas of the brain with overlapping expression patterns, such as in glutamatergic layer 6 neurons, the TBR1–FOXP2 interaction may result in co-ordinated regulation of common downstream targets.
SIGNOR-266832
P31749
Q12906
1
phosphorylation
up-regulates activity
0.367
Upon T cell activation, NF90 translocates from the nucleus into the cytoplasm, where it binds to the AU-rich element-containing 3' untranslated regions of IL-2 mRNA and stabilizes it.|Our previous work showed that CD28 costimulation of T cells activated AKT to phosphorylate NF90 at Ser647 and caused NF90 to undergo nuclear export and stabilize IL-2 mRNA.
SIGNOR-252512
P28482
P17655
1
phosphorylation
up-regulates
0.628
Epidermal growth factor activates m-calpain (calpain ii), at least in part, by extracellular signal-regulated kinase-mediated phosphorylation.We now show that erk directly phosphorylates and activates m-calpain both in vitro and in vivo. We identified serine 50 as required for epidermal growth factor (egf)-induced calpain activation in vitro and in vivo.
SIGNOR-123079
P14921
Q13554
0
phosphorylation
down-regulates activity
0.309
Increased Transactivation of the GM-CSF Promoter/Enhancer by Ets1 with Mutated CaMK II Sites | Significantly, phosphorylation of Ets1 by Ca2+-dependent pathways is thought to inhibit DNA binding in vitro. To analyze the role of these four serines, S251, S257, S282, and S285, in transcription, we constructed three mutant derivatives of human Ets1 
SIGNOR-250684
Q12974
P24941
1
dephosphorylation
up-regulates
0.2
Cells overexpressing prl-2 exhibited enhanced cyclin-dependent kinase 2 (cdk2) activity
SIGNOR-119478
Q9H4B4
Q14790
1
phosphorylation
up-regulates activity
0.338
Furthermore, we identify caspase-8 as a new substrate for Plk3. Phosphorylation occurs on T273 and results in stimulation of caspase-8 proapoptotic function.
SIGNOR-272995
P47712
P17252
0
phosphorylation
up-regulates
0.564
Pkcalfa, but not pkcbeta, is the predominant cpkc isoenzyme required for cpla2 protein phosphorylation and maximal induction of cpla2 enzymatic activity.
SIGNOR-149406
P55075
Q9BYU1
0
transcriptional regulation
down-regulates quantity by repression
0.2
Our results in ES cells suggest that Engrailed inhibits Fgf8 expression in the absence of Pbx1. We identified single Engrailed- and Pbx-binding sites in the Fgf8 intron that inhibit expression of Fgf8 in mouse ES cells, but that together can allow full Fgf8 expression. Our data support the model that Engrailed heterodimerized with Pbx might activate transcription, while Engrailed or Pbx proteins alone might repress transcription
SIGNOR-265806
P42685
P46937
1
phosphorylation
down-regulates quantity by destabilization
0.275
Mechanistically, FRK interacted with and phosphorylated YAP on Tyr391/407/444, which recruited the classical E3 ubiquitin ligase Siah1 to catalyze ubiquitination and eventually degradation of YAP. 
SIGNOR-275456
Q08881
Q06124
0
dephosphorylation
down-regulates activity
0.324
Using genetic and pharmacological approaches, we discovered that SHP2 dephosphorylates ITK specifically downstream of PD-1 and that this event was associated with PD-1 inhibitory cellular functions.
SIGNOR-277174
Q9NZQ7
P49841
0
phosphorylation
down-regulates quantity by destabilization
0.307
We show that glycogen synthase kinase 3β (GSK3β) interacts with PD-L1 and induces phosphorylation-dependent proteasome degradation of PD-L1 by β-TrCP.
SIGNOR-277275
O14490
Q9UQM7
0
phosphorylation
down-regulates quantity by destabilization
0.397
 CaMKIIα activated by the NMDA receptor phosphorylates GKAP Ser54 to induce polyubiquitination of GKAP. 
SIGNOR-276429
P35367
Q13976
0
phosphorylation
down-regulates
0.2
Ser396 and ser398 are also potential phosphorylation sites for capk, cgmp-dependent protein kinase, and camk ii. Elevation of intracellular camp content has been shown to attenuate histamine-induced accumulation of ip in c6 glioma cells (peakman and hill, 1994) and in ddt1 mf-2 smooth muscle cells (sipma et al., 1995
SIGNOR-66019
Q06187
P42768
1
phosphorylation
up-regulates activity
0.743
These results demonstrate that WASP, under this experimental condition, can be tyrosine-phosphorylated by the kinase activity of Btk and that the direct interaction between WASP and the SH3 domain of Btk is required for this phosphorylation to occur.
SIGNOR-273958
P07948
O75807
1
phosphorylation
up-regulates
0.334
Gadd34 was tyrosine-phosphorylated in vivo in a lyn-dependent manner.
SIGNOR-109934
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
P42771
P01106
0
transcriptional regulation
down-regulates quantity by repression
0.766
C-myc also directly represses transcription of cdk kinase inhibitors including p27kip1, p21cip1, p15ink4b and p16ink4a
SIGNOR-102743
P12931
P05106
1
phosphorylation
down-regulates activity
0.661
The phosphorylation level of beta(3) integrin was modulated using a temperature-sensitive v-Src kinase. Increased beta(3) phosphorylation abolished alpha(v)beta(3)- but not alpha(5)beta(1)-mediated adhesion to fibronectin. Thus, phosphorylation of the cytoplasmic domain of beta(3) is a negative regulator of alpha(v)beta(3)-fibronectin binding strength.
SIGNOR-247207
Q9Y446
P12931
0
phosphorylation
up-regulates activity
0.306
We have discovered that reactive oxygen species (ROS) trigger the c-Src kinase-mediated tyrosine (Tyr)-195 phosphorylation of PKP3. This modification is associated with a change in the subcellular distribution of the protein. Specifically, PKP3 bearing phospho-Tyr-195 is released from the desmosomes, suggesting that phospho-Tyr-195 is relevant for the control of desmosome disassembly and function, at least in cells exposed to ROS. 
SIGNOR-273807
Q9H0K1
Q53ET0
1
phosphorylation
down-regulates
0.743
Phosphorylation on the ser171 residue of crtc2 by ampk and ampk-related kinases, including the salt-inducible kinases (siks), is critical for determining the activity, cellular localization, and degradation of crtc2
SIGNOR-142218
P17252
Q13131
1
phosphorylation
down-regulates activity
0.2
Purified PKC and Akt both phosphorylated AMPKα1 Ser487 in vitro with similar efficiency. PKC activation was associated with reduced AMPK activity, as inhibition of PKC increased AMPK activity and phorbol esters inhibited AMPK, an effect lost in cells expressing mutant AMPKα1 Ser487Ala. Consistent with a pathophysiological role for this modification, AMPKα1 Ser487 phosphorylation was inversely correlated with insulin sensitivity in human muscle.
SIGNOR-276459
Q7Z2W7
P67775
0
dephosphorylation
down-regulates activity
0.2
Using specific pharmacological and molecular tools combined with patch-clamp current recordings, we found that in heterologously expressed HEK-293 (human embryonic kidney) cells, TRPM8 channel is inhibited by the G(i) protein/adenylate cyclase (AC)/cAMP/protein kinase A (PKA) signaling cascade. We further identified the TRPM8 S9 and T17 as two key PKA phosphorylation sites regulating TRPM8 channel activity. the intracellular serine/threonine protein phosphatase 2A (PP2A) dephosphorylates TRPM8 Ser-9 and Thr-17 inhibiting the channel activity.
SIGNOR-273793
Q9UBF8
Q15139
0
phosphorylation
up-regulates
0.405
Binding of 14-3-3 proteins to pi4kiiibeta involved the pkd phosphorylation site ser294, evident from reduced 14-3-3 binding to a s294a pi4kiiibeta mutant. Phospho-specific binding of 14-3-3 proteins to phosphatidylinositol 4-kinase iii beta protects from dephosphorylation and stabilizes lipid kinase activity.
SIGNOR-148876
P53350
Q38SD2
1
phosphorylation
up-regulates activity
0.345
Here we show that LRRK1 is a PLK1 substrate that is phosphorylated on Ser 1790. PLK1 phosphorylation is required for CDK1-mediated activation of LRRK1 at the centrosomes
SIGNOR-275467
Q15797
P23771
1
transcriptional regulation
up-regulates quantity
0.291
Chromatin immunoprecipitation (ChIP) revealed a subset of the BIG (BMP4 induced genes) signature, including Satb2, Smad6, Hand1, Gadd45γ and Gata3, that was bound by Smad1/5 in the developing mandible, revealing direct Smad-mediated regulation
SIGNOR-268938
Q16665
Q9Y3V2
0
sumoylation
up-regulates
0.457
Rsume,_a small_rwd-containing protein, enhances sumo conjugation and stabilizes hif-1alpha during hypoxia
SIGNOR-158590
Q9UQM7
P28329
1
phosphorylation
up-regulates
0.372
We show that chat is differentially phosphorylated by protein kinase c (pkc) isoforms on four serines (ser-440, ser-346, ser-347, and ser-476) and one threonine (thr-255). This phosphorylation is hierarchical, with phosphorylation at ser-476 required for phosphorylation at other serines. Phosphorylation at some, but not all, sites regulates basal catalysis and activation.
SIGNOR-96628
P05129
P41594
1
phosphorylation
up-regulates activity
0.415
Thus, we showed that it is phosphorylation of Ser-839, not Thr-840, that is absolutely required for the unique Ca2+ oscillations produced by mGluR5 activation. The Thr-840 residue is important only in that it is permissive for the PKC-dependent phosphorylation of Ser-839.
SIGNOR-249289
Q13153
P67775
0
dephosphorylation
down-regulates activity
0.357
Both sites were dephosphorylated with the same kinetics; the anti-Ser(P)198 antibody was subsequently used as it exhibited lower background staining. Direct comparison of PP2Cα with purified PP1 and PP2A lead us to conclude that at the same molar ratio PP2Cα was the most efficient in dephosphorylating PAK1 (Fig. 1D). In this case we monitored two autophosphorylation sites in the Pak1 N-terminal regulatory region (Ser57 and Ser198/203) using phosphospecific antibodies: both sites showed the same kinetics of inactivation.
SIGNOR-248641
P49137
Q9Y385
1
phosphorylation
down-regulates quantity by destabilization
0.334
Endoplasmic reticulum-associated ubiquitin-conjugating enzyme Ube2j1 is a novel substrate of MK2 (MAPKAP kinase-2) involved in MK2-mediated TNFα production. These findings strongly suggest that MK2 directly phosphorylates Ube2j1 at Ser(184) upon p38-activating stress in vivo.
SIGNOR-263091
Q9NQX3
P49841
0
phosphorylation
down-regulates
0.283
Identification of gsk3_ as the kinase targeting ser-270 /phosphorylation at ser-270 promotes gephyrin processing by calpain
SIGNOR-200957
Q8NFU7
O15294
0
glycosylation
up-regulates activity
0.44
The DNA demethylation enzyme Tet1 interacts with Ogt and is O-GlcNAcylated. Tet1 protein stability is positively regulated by O-GlcNAcylation, and its repression function on targeting genes is dependent on Ogt.
SIGNOR-259184
Q01094
P27361
0
phosphorylation
up-regulates
0.292
Erk also undergoes rapid translocation into the nucleus, where it phosphorylates and activates a variety of transcription factor targets, including sp1, e2f, elk-1, and ap1
SIGNOR-121991
O75385
Q13501
1
phosphorylation
down-regulates quantity by destabilization
0.567
ULK1 phosphorylates p62 at the Ser403 site.
SIGNOR-278349
P27361-3
P06493
0
phosphorylation
up-regulates activity
0.314
 We found that CDK1 phosphorylates Ser343 of ERK1c, thereby allowing the binding of phosphorylated ERK1c to a complex that consists of PI4KIIIβ (also known as PI4KB) and the 14-3-3γ dimer (encoded by YWHAB). 
SIGNOR-277185
P00519
P35637
1
phosphorylation
down-regulates activity
0.325
Abl kinase-mediated FUS Tyr526 phosphorylation alters nucleocytoplasmic FUS localization in FTLD-FUS.
SIGNOR-280168
P11362
P28482
0
phosphorylation
down-regulates
0.309
Erk-mediated phosphorylation of fibroblast growth factor receptor 1 on ser777 inhibits signaling
SIGNOR-200880
P19525
O75569
1
phosphorylation
up-regulates activity
0.796
In stressed cells, this activation occurs when PACT, a PKR-binding protein, is phosphorylated and activates PKR.
SIGNOR-280003
P07737
P61586
0
null
up-regulates activity
0.569
We find that the small GTPase Rho regulates R-cadherin adherens junction formation via Dia1 (also known as p140mDia) and profilin-1-mediated signaling pathway. The role played by Rho in regulating R-cadherin is underscored by the fact that constitutively active RhoA(Q63L) induces R-cadherin junction formation in MDA-MB-231 cells.|Data presented thus far demonstrated that Rho, Dia1, and profilin-1 were required for R-cadherin junction formation in N480 cells.
SIGNOR-253109
P40763
Q15678
0
dephosphorylation
down-regulates activity
0.271
Moreover, dephosphorylation of STAT3 by PTPN14 might occur in the cytoplasm but not in nucleus.|The tyrosine phosphatase PTPN14 inhibits the activation of STAT3 in PEDV infected Vero cells.
SIGNOR-277088
Q16665
P98170
0
ubiquitination
up-regulates activity
0.284
HIF1alpha is ubiquitinated by XIAP.|Lys 63 -linked ubiquitination of HIF1alpha by XIAP is dependent on the activity of E2 ubiquitin conjugating enzyme Ubc13.|We find that XIAP and Ubc13 dependent Lys 63 -linked polyubiquitination promotes HIF1alpha nuclear retention leading to an increase in the expression of HIF1 responsive genes.|The data indicate that XIAP promotes the formation of the non-degradative Lys63-linked ubiquitin chains onto hypoxia inducible factor1\u03b1, but does not affect the formation of Lys48-linked chains.
SIGNOR-278740
P14635
P50539
0
transcriptional regulation
down-regulates quantity by repression
0.266
Mxi1 inhibits the proliferation of U87 glioma cells through down-regulation of cyclin B1 gene expression | Mxi1 inhibits the promoter activity of the cyclin B1 gene.
SIGNOR-266064
P12931
O14757
0
phosphorylation
up-regulates activity
0.338
In this study, we show that Chk1 phosphorylates human Src at the newly identified site serine 51 to fully induce Src kinase activity.
SIGNOR-278332
Q8IWV8
Q9H410
1
ubiquitination
down-regulates quantity
0.2
Mub1 and Ubr2 mediate Dsn1 ubiquitylation and degradation.|The levels of WT Dsn1 were also increased in the mub1Delta and ubr2Delta strains, suggesting that Mub1 and Ubr2 mediate the degradation of WT Dsn1 protein.
SIGNOR-278795
P38432
P24941
0
phosphorylation
up-regulates
0.381
In particular, we have recently found that the cdk2/cyclin e complex can phosphorylate coilin in vitro . there is but a single consensus cdk2/cyclin e phosphorylation site in coilin, located at serine 184. when serine 184 was mutated to an alanine (s184a), mimicking a dephosphorylated state, a nucleolar mislocalization similar to that of gfp-coilin(1_248) was observed
SIGNOR-84949
Q5JU85
P42262
1
relocalization
up-regulates quantity
0.2
BRAG1 increases the synaptic recycling pool of AMPARs.these data suggest that the BRAG1 enhancement of AMPAR transmission is mediated by the increased expression of the recycling pool of synaptic GluA2/3 receptors.
SIGNOR-264913
P62993
P35968
0
relocalization
up-regulates activity
0.686
In a similar fashion, KDR associates with Grb2 and Nck in a ligand-dependent fashion, suggesting Shc, Grb2, and Nck as potential candidates involved in the regulation of endothelial function.
SIGNOR-261948
P62136
Q00535
0
phosphorylation
down-regulates activity
0.395
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. Increasing doses of cdk2 resulted in increased phosphorylation of the thr-320 site. Phosphorylation of this site in pp1 corresponded to decreased pp1 activity.
SIGNOR-92269
O60260
O43175
1
ubiquitination
down-regulates quantity by destabilization
0.2
Parkin binds to PHGDH and degrades it through ubiquitination to inhibit serine synthesis, which contributes greatly to the tumor-suppressive function of Parkin.
SIGNOR-269075
Q9UNE7
P53350
1
ubiquitination
down-regulates quantity by destabilization
0.252
As indicated in xref , all three Plk1 fragments were ubiquitinated by CHIP, suggesting that CHIP targets multiple sites of Plk1 for ubiquitination.|Mechanistically, CHIP mediated degradation of AR and Plk1 leads to enhanced efficacy of HSP90 inhibitors.
SIGNOR-278532
P01019
P24158
0
cleavage
up-regulates activity
0.259
Cathepsin G, elastase, and proteinase 3 are serine proteinases released by activated neutrophils. Cathepsin G can cleave angiotensinogen to release angiotensin II, but this activity has not been previously reported for elastase or proteinase 3. In this study we show that elastase and proteinase 3 can release angiotensin I from angiotensinogen and release angiotensin II from angiotensin I and angiotensinogen.
SIGNOR-256314
Q9Y698
P17612
0
phosphorylation
down-regulates activity
0.432
phosphorylation of stargazin at T321 by PKA inhibits its interaction with PSD-95.
SIGNOR-250342
Q9NXR1
P28482
0
phosphorylation
up-regulates activity
0.374
Moreover, both proteins were phosphorylated by Cdc2 and Erk2 in vitro. In the case of Nudel, the phosphorylation sites were also located in the S/TP motifs. Detailed mutagenesis study indicated that T219, S242, and T245 were phosphorylated by Cdc2, while T219 and T245 were phosphorylated by Erk2.|Phosphorylation of Nudel in M phase appears to positively modulate dynein motor activity. Both phosphorylated and unphosphorylated forms of Nudel were transported by dynein (Fig. 7 and 9 and data not shown), indicating that neither of them inactivated the dynein motor. On the other hand, both phospho-Nudel and Nudelpmt5 bound Lis1 more strongly than Nudel or Nudelmt5 did
SIGNOR-249422
Q9Y4K3
Q8IUC6
1
polyubiquitination
up-regulates
0.83
Here, we show that the TRAF family proteins directly bind TICAM-1 and demonstrate that TRAF2 and TRAF6 bind different sites of the N-terminal TICAM-1 and accelerate its polyubiquitination. we speculate that polyubiquitination of TICAM-1 by TRAF2 and TRAF6 is required for TICAM-1 to induce IRF-3 and NF-κB activation. This is supported by the observation that polyubiquitination of TICAM-1 was required for TRAF3-binding to TICAM-1
SIGNOR-271428
Q92831
P08151
1
acetylation
down-regulates activity
0.469
NR3C1 impaired GLI1 function by dynamically modulating the recruitment of PCAF acetyltransferase
SIGNOR-269270
Q13418
Q13765
1
phosphorylation
up-regulates
0.426
Ilk phosphorylated alpha-nac on residue ser-43. Ilk-dependent phosphorylation of alpha-nac induced the nuclear accumulation of the coactivator and that phosphorylation of alpha-nac by ilk is required for the potentiation of c-jun-mediated responses by the kinase.
SIGNOR-127694
P54646
O00418
1
phosphorylation
up-regulates activity
0.498
Stimulation of the AMP-activated Protein Kinase Leads to Activation of Eukaryotic Elongation Factor 2 Kinase and to Its Phosphorylation at a Novel Site, Serine 398. phosphorylation of eEF2 kinase at Ser-398 leads to an increase in its activity.
SIGNOR-250158