IdA
string
IdB
string
labels
int64
mechanism
string
effect
string
score
float64
sentence
string
signor_id
string
Q00987
P27695
1
ubiquitination
down-regulates quantity by destabilization
0.416
Once the reaction proceeds beyond the monoubiquitination stage, MDM2 polyubiquitinates APE1 for degradation.
SIGNOR-278555
Q96F44
Q99453
1
ubiquitination
down-regulates
0.485
The e3 ubiquitin ligasetrim11mediates the degradation of congenital central hypoventilation syndrome-associated polyalanine-expandedphox2b.
SIGNOR-195878
P68400
Q9H2G2
1
phosphorylation
down-regulates
0.2
Slk down-regulation by v-src is indirect and is accompanied by slk hyperphosphorylation on serine residues. Deletion analysis revealed that casein kinase ii (ck2) sites at position 347/348 are critical for v-src-dependent modulation of slk activity.
SIGNOR-147879
P36956
Q9H5J4
1
transcriptional regulation
up-regulates quantity by expression
0.45
These data demonstrated that Elovl-6 is regulated directly and primarily by SREBP-1c.
SIGNOR-267943
P53350
Q9H6R7
1
phosphorylation
up-regulates activity
0.2
PLK1 Phosphorylates MMAP to Promote Its Interaction with KIF2A and MRE11. we performed in vitro kinase assays followed by mass spectrometry and found that two sites (S686 and S695) in this cluster were phosphorylated. Thus, all of these results are in agreement that this cluster is phosphorylated by PLK1.
SIGNOR-273730
P50613
P13631
1
phosphorylation
up-regulates activity
0.418
RARg Is Phosphorylated by cdk7 in Its B and F Regions | Mutation into alanine of Ser-77 and Ser-79 located in the A/B region reduced the transcriptional activity of hRARg1 (Fig. 9A), confirming that these phosphorylation sites are required for optimal transcription.
SIGNOR-259853
P29350
P40763
1
dephosphorylation
down-regulates
0.457
Stat3 may also be a substrate of shp1
SIGNOR-178699
P68400
Q16543
1
phosphorylation
up-regulates activity
0.397
Phosphorylation of serine 13 is required for the proper function of the Hsp90 co-chaperone, Cdc37. | In this report, we demonstrate that mammalian Cdc37 is phosphorylated on Ser13 in situ in rabbit reticulocyte lysate and in cultured K562 cells and that casein kinase II is capable of quantitatively phosphorylating recombinant Cdc37 at this site.
SIGNOR-250838
P17542
P62256
1
transcriptional regulation
up-regulates quantity by expression
0.326
Tal1 expression activated UBE2H expression, whereas Tal1 knock-down reduced UBE2H expression and ubiquitin transfer activity.|Binding of Tal1 to UBE2H was confirmed by chromatin immunoprecipitation.
SIGNOR-269000
O14874
P12694
1
phosphorylation
down-regulates
0.609
Phosphorylation sites and inactivation of branched-chain alpha-ketoacid dehydrogenase isolated from rat heart, bovine kidney, and rabbit liver, kidney, heart, brain, and skeletal muscle.
SIGNOR-25084
Q12778
Q8IW41
0
phosphorylation
up-regulates activity
0.422
The kinase MK5 phosphorylates and activates Foxo1 at serine 215, and this modification is required for Foxo1 to induce Rag transcription.
SIGNOR-280037
P17252
P35222
1
phosphorylation
down-regulates
0.413
As shown in Fig. 1 B, PKCalpha readily phosphorylated Ser33 and Ser37 / Thr41 on full-length beta-catenin (beta-catenin 1 - 781) and CTD deletion mutant (beta-catenin 1-682).|To examine the effect of the armadillo repeats 1-5 on PKCalpha mediated beta-catenin degradation, DNA constructs expressing beta-catenin 1 - 781 and beta-catenin deletion mutants (beta-catenin 1-422 and beta-catenin 1-138) were transfected into HEK293 cells, followed by treatment with increasing concentrations of A23187 and CGK062, which are known activators of PKCalpha.
SIGNOR-278492
P24752
P29803
1
acetylation
down-regulates activity
0.2
We previously reported that the mitochondrial fraction of FLT3 activates acetyl-CoA acetyltransferase ACAT1 in mitochondria via Y407 phosphorylation to acetylate and inhibit mitochondrial pyruvate dehydrogenase A (PDHA) and PDH phosphatase 1 (PDP1)
SIGNOR-267634
P08581
Q04206
0
transcriptional regulation
up-regulates quantity
0.25
Together, these results indicate that the Met gene is a direct target of NFkappaB and that Met participates in NFkappaB-mediated cell survival.
SIGNOR-241929
O15530
P31749
1
phosphorylation
up-regulates
0.748
We have partially purified a kinase from brain extract that phosphorylates Ser473 of PKBalpha in a PtdIns(3,4,5)P3-dependent manner and that is immunoprecipitated with PDK1 antibodies.
SIGNOR-67367
P42345
P08069
1
phosphorylation
up-regulates activity
0.494
Both recombinant mTOR and immunoprecipitated mTORC2 phosphorylate IGF-IR and InsR on Tyr1131/1136 and Tyr1146/1151, respectively.|Here we show that mTOR possesses unexpected tyrosine kinase activity and activates IGF-IR/InsR.
SIGNOR-280044
Q16539
P78536
1
phosphorylation
up-regulates activity
0.405
We show that p38 MAP kinase, which is activated in response to inflammatory or stress signals, directly activates TACE, a membrane-associated metalloprotease that is also known as ADAM17 and effects shedding in response to growth factors and Erk MAP kinase activation. p38alpha MAP kinase interacts with the cytoplasmic domain of TACE and phosphorylates it on Thr(735), which is required for TACE-mediated ectodomain shedding
SIGNOR-163970
Q14145
Q16236
1
ubiquitination
down-regulates quantity
0.813
Keap1 is a substrate receptor of a Cul3-RING ubiquitin ligase (CRL3) that, in physiological conditions, constitutively binds and targets Nrf2 for degradation
SIGNOR-259335
Q9Y5X2
P23458
0
phosphorylation
up-regulates activity
0.341
IFNγ induced JAK1-mediated phosphorylation of SNX8 at Tyr95 and Tyr126, which promoted the recruitment of IKKβ to the JAK1 complex. 
SIGNOR-273647
O95747
Q13621
1
phosphorylation
up-regulates activity
0.502
 We establish that the SPAK and OSR1 kinases activated by WNK interact with an RFQV motif on NKCC2 and directly phosphorylate Thr95, Thr100, Thr105 and, possibly, Ser91.Using these phosphorylation-specific antibodies we establish that hypotonic low-chloride stimulation induces marked phosphorylation of overexpressed NKCC2 in HEK-293 cells at Ser91, Thr100, Thr105 and Ser130 (Fig. 3A).
SIGNOR-276309
O00418
O15264
0
phosphorylation
down-regulates activity
0.578
eEF2 kinase is phosphorylated and inhibited by SAPK4/p38delta. eEF2K[S359A] was phosphorylated (presumably at Ser396) by the high concentrations of SAPK4/p38 used in this experiment. However, the inhibition of eEF2K under these conditions was reduced from 82% in the wild-type enzyme to 19% in eEF2K[S359A]
SIGNOR-250089
Q99626
Q9HAW8
1
transcriptional regulation
up-regulates quantity by expression
0.257
Using gel shift and functional assays, HNF1alpha was demonstrated to bind to and activate the UGT1A8, -1A9, and -1A10 promoters. In contrast, Cdx2 bound to and activated the UGT1A8 and -1A10 promoters but could not activate the UGT1A9 promoter.
SIGNOR-253968
P53350
Q9UKT4
1
phosphorylation
down-regulates
0.783
We propose that the balance of evi5 and polo-like kinase activities determines the timely accumulation of emi1 and cyclin, ensuring mitotic fidelity.
SIGNOR-142949
Q13315
P46527
1
phosphorylation
up-regulates quantity by stabilization
0.419
We also uncovered that ATM phosphorylates p27Kip1 on a previously uncharacterized residue (Ser-140), which leads to its stabilization after induction of DNA double-strand breaks.
SIGNOR-279392
P07550
P31749
0
phosphorylation
down-regulates
0.354
Akt mediates sequestration of the beta(2)-adrenergic receptor in response to insulin. Phosphorylation studies of the c-terminal cytoplasmic domain of the beta(2)-adrenergic receptor by akt in vitro identified ser(345) and ser(346) within a consensus motif for akt phosphorylation.
SIGNOR-252470
P68400
P52655
1
phosphorylation
up-regulates activity
0.379
We now show that human TFIIA is phosphorylated in vivo on serine residues that are partially conserved between yeast and human TFIIA large subunits. Alanine substitution mutation of serine residues 316 and 321 in TFIIA alphabeta reduced TFIIA phosphorylation significantly in vivo. Additional alanine substitutions at serines 280 and 281 reduced phosphorylation to undetectable levels. Mutation of all four serine residues reduced the ability of TFIIA to stimulate transcription in transient transfection assays with various activators and promoters, indicating that TFIIA phosphorylation is required globally for optimal function.
SIGNOR-250877
Q9UQM7
Q05469
1
phosphorylation
down-regulates
0.2
Phosphorylation of bovine hormone-sensitive lipase by the amp-activated protein kinase.
SIGNOR-58251
P41743
Q6P1M3
1
phosphorylation
up-regulates activity
0.687
This finding indicates that both mLgl-2 and mLgl-1 are phosphorylated in vivo in an aPKC lambda activity-dependent manner.
SIGNOR-263180
P31749
P10276
1
phosphorylation
down-regulates
0.602
We report that akt, which is constitutively activated in nsclc cells, phosphorylates raralpha and inhibits its transactivation. / mutation of ser96 to alanine abrogated the suppressive effect of akt.
SIGNOR-252489
P20393
P37231
0
transcriptional regulation
up-regulates quantity by expression
0.277
Mutations of the 5' or 3' half-sites of the response element totally abrogated PPARgamma binding and transcriptional activation, identifying this site as a novel type of functional PPARgamma response element. Finally, ectopic expression of Rev-Erbalpha in 3T3-L1 preadipocytes potentiated adipocyte differentiation induced by the PPARgamma ligand rosiglitazone. These results identify Rev-Erbalpha as a target gene of PPARgamma in adipose tissue and demonstrate a role for this nuclear receptor as a promoter of adipocyte differentiation.
SIGNOR-268022
P68431
O75151
0
demethylation
down-regulates activity
0.2
PHF2, a jmjC demethylase, is enzymatically inactive by itself, but becomes an active H3K9Me2 demethylase through PKA-mediated phosphorylation. This modification leads to targeting of the PHF2–ARID5B complex to its target promoters, where it removes the repressive H3K9Me2 mark.
SIGNOR-264521
P31321
O43164
0
polyubiquitination
down-regulates quantity by destabilization
0.2
Praja2 controls the stability of PKA regulatory subunits. Praja2 ubiquitylates RIIα/β subunits. Subunits
SIGNOR-271857
P10412
P50750
0
phosphorylation
down-regulates activity
0.2
These data provide further evidence that CDK9 phosphorylates H1.4-S187, and that the level of pS187-H1.4 at genes is directly related to the extent of co-enrichment of CDK9.|that enrichment of pS187-H1.4 at genes is positively related to their transcription.
SIGNOR-279691
Q14807
Q96EP1
0
ubiquitination
down-regulates quantity by destabilization
0.399
Chfr ubiquitinates Kif22 and promotes its degradation.
SIGNOR-271469
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
P61586
Q7Z6I6
0
gtpase-activating protein
down-regulates activity
0.449
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-260485
Q9UNE7
Q16665
1
ubiquitination
down-regulates quantity by destabilization
0.376
the ubiquitin ligase activity of CHIP regulates HIF-1α degradation.
SIGNOR-271426
Q13393
P54646
0
phosphorylation
up-regulates
0.2
Ampk-wild type (wt) stimulates pld activity, while ampk-dominant negative (dn) inhibits it. Ampk regulates pld1 activity through phosphorylation of the ser-505 and this phosphorylation is increased by the presence of amp.
SIGNOR-164293
P51617
Q9NWZ3
0
phosphorylation
up-regulates activity
0.687
In addition, IRAK-4 is able to phosphorylate IRAK-1, and overexpression of dominant-negative IRAK-4 is blocking the IL-1-induced activation and modification of IRAK-1, suggesting a role of IRAK-4 as a central element in the early signal transduction of Toll/IL-1 receptors, upstream of IRAK-1.
SIGNOR-117315
P26367
Q9H2X6
0
phosphorylation
up-regulates activity
0.463
HIPK2 phosphorylates the activation domain of Pax6, which augments Pax6 transactivation by enhancing its interaction with p300. Mass spectrometric analysis identified three Pax6 phosphorylation sites as threonines 281, 304, and 373.
SIGNOR-251271
P54646
P28562
1
phosphorylation
down-regulates quantity by destabilization
0.273
Taken together, these results imply that nicotine acts via AMPKα2 to phosphorylate MKP1 at Ser334, instigating MKP1 ubiquitination and proteasome-mediated degradation.
SIGNOR-276890
Q05655
P48995
1
phosphorylation
up-regulates activity
0.2
Taken together, these results indicate that store depletion induces interactions between TRPC1 and PKC\u03b4 in VSMCs, and that these interactions cause PKC\u03b4\u2010dependent phosphorylation of TRPC1.
SIGNOR-279559
P25098
P21731-2
1
phosphorylation
down-regulates activity
0.2
 These data suggest a model whereby agonist-induced PKC phosphorylation of Ser(145) partially impairs TPbeta signalling while GRK2/3 phosphorylation at both Ser(239) and Ser(357) within its IC(3) and C-tail domains, respectively, sterically inhibits G-protein coupling, profoundly desensitizing signalling, and promotes beta-arrestin association and, in turn, facilitates TPbeta internalization.
SIGNOR-274088
Q13153
Q99523
1
phosphorylation
down-regulates activity
0.2
PAKs specifically phosphorylate Ser15 of the sortilin-cd and alter its trafficking. It can be concluded that PAK1-3 may indeed instigate the phosphorylation of sortilin and that they target a single serine residue (Ser15) located in the kinase domain-binding site of the sortilin-cd. Full-length sortilins with the serine at position 793 (residue 15 in the cytoplasmic domain) (for the sequence, see Fig. 2). Phosphorylation (Ser15) downregulates the sortilin–AP-1 interaction.
SIGNOR-273718
Q9Y2K2
O15055
1
phosphorylation
down-regulates quantity by destabilization
0.2
In the current study, we found that SIK3 promotes phosphorylation of PER2 and regulates the abundance of the protein by accelerating its degradation.
SIGNOR-279570
P23471
Q9UM73
1
dephosphorylation
down-regulates
0.545
Rptpbeta/zeta dephosphorylates alk at the site(s) in alk that is undergoing autophosphorylation through autoactivation.
SIGNOR-157227
Q05209
O43586
1
dephosphorylation
down-regulates activity
0.61
We also demonstrate that PTP-PEST dephosphorylates PSTPIP at tyrosine 344. Importantly, we identified tyrosine 344 as the main phosphorylation site of PSTPIP by performing tryptic phosphopeptide maps. |The biological functions of the complexes formed between PSTPIP and SH2 domain-containing tyrosine kinases may be to transmit the signals from activated EGF and PDGF receptor.|Furthermore, we show that PSTPIP is phosphorylated downstream of the activated PDGF and EGF receptors. This phosphorylation of PSTPIP is most likely mediated by c-Abl
SIGNOR-248656
Q16659
Q8IW41
1
phosphorylation
up-regulates activity
0.69
ERK3, ERK4 and p38 MAPK can all phosphorylate MK5 at Thr 182 , , , - ], but it is not known whether these enzymes also can phosphorylate Ser 115 and whether this modification contributes to ERK3-, ERK4-, or p38 MAPK -regulated subcellular localization of MK5.
SIGNOR-279073
Q15678
Q03135
1
dephosphorylation
down-regulates activity
0.2
Finally, PTPN14 overexpression in B16F10 cells reduced the ability of CAV1 to induce metastasis in vivo.|Moreover, the CAV1 (Y14F) mutant protein was shown to co-immunoprecipitate with PTPN14 even in the absence of E-cadherin, and overexpression of PTPN14 reduced CAV1 phosphorylation on tyrosine 14, as well as suppressed CAV1 enhanced cell migration, invasion and Rac-1 activation in B16F10, metastatic colon [HT29 (US)] and breast cancer (MDA-MB-231) cell lines.
SIGNOR-277054
Q9NX09
P49841
0
phosphorylation
down-regulates quantity by destabilization
0.339
It has been reported that GSK3beta phosphorylates REDD1 at residues Thr23 and Thr25, resulting in REDD1 recruitment to the Cullin 4a-beta-Trcp E3 ligase complex.
SIGNOR-279526
Q9HCU9
O43791
0
ubiquitination
down-regulates quantity
0.402
Intriguingly, BRMS1 turns out to be a potent substrate that is ubiquitinated by the Cul3-SPOP complex. Knockdown of SPOP increases the level of BRMS1 protein and represses the expression of BRMS1 repressive target genes such as OPN and uPA in breast cancer cells.
SIGNOR-268857
P12277
Q96DX5
0
polyubiquitination
down-regulates quantity by destabilization
0.683
We demonstrate that creatine kinase B (CKB) interacts with Asb-9 in a specific, SOCS box-independent manner. This interaction increases the polyubiquitylation of CKB and decreases total CKB levels within the cell. The targeting of CKB for degradation by Asb-9 was primarily SOCS box-dependent and suggests that Asb-9 acts as a specific ubiquitin ligase regulating levels of this evolutionarily conserved enzyme.
SIGNOR-271623
Q14106
P24941
0
phosphorylation
up-regulates activity
0.246
Taken together, these observations strongly support the notion that several different CDK-cyclin complexes are involved in the phosphorylation of Tob2 at S254.A more detailed regulatory context of Tob2 phosphorylation at S254 is provided by our findings from mass-spec and in vitro kinase analyses that suggest connections to PP2B and PP2C phosphatases and CDK-cyclin complexes, particularly CDK1, CDK2, and CDK4 (Table 1; Supplemental Table S2).One possibility is that the phosphorylation of S254 helps stabilize the interaction of Tob2 with the Ccr4–Not complex, which could contribute to Tob2's ability to recruit the entire Ccr4–Not complex and thus further enhances deadenylation.
SIGNOR-273601
Q16549
P49715
1
phosphorylation
down-regulates
0.2
Addition of active p38a induced phosphorylation of wild-type c/ebp_? (c/ebp_?WT) on serine 21
SIGNOR-186202
Q13164
Q14814
1
phosphorylation
up-regulates
0.705
Here, we demonstrate that, in addition to mef2c, bmk1 phosphorylates and activates mef2a and mef2d but not mef2b. the sites phosphorylated by activated bmk1 were mapped to ser-355, thr-312, and thr-319 of mef2a and ser-179 of mef2d both in vitro and in vivo.
SIGNOR-236041
P32754
Q96FA3
0
ubiquitination
down-regulates quantity by destabilization
0.2
Decreased expression of 4-hydroxyphenylpyruvic acid dioxygenase (HPD), a key enzyme for tyrosine metabolism, is a cause of human tyrosinemia. However, the regulation of HPD expression remains largely unknown. Here, we demonstrate that molecular chaperone TTC36, which is highly expressed in liver, is associated with HPD and reduces the binding of protein kinase STK33 to HPD, thereby inhibiting STK33-mediated HPD T382 phosphorylation. The reduction of HPD T382 phosphorylation results in impaired recruitment of FHA domain-containing PELI1 and PELI1-mediated HPD polyubiquitylation and degradation.
SIGNOR-272959
Q9NQG5
P14635
1
transcriptional regulation
up-regulates quantity by expression
0.2
These results indicated that CREPT regulates the Cyclin B1 expression via directly targeting its promoter region during transcription.
SIGNOR-265500
P06493
Q9Y6X9
1
phosphorylation
down-regulates quantity by destabilization
0.2
Mechanically, PTX and VCR activate cyclin-dependent kinase 1, which in turn induces MORC2 phosphorylation at threonine 717 (T717) and T733. Phosphorylated MORC2 enhances its interation with HSPA8 and LAMP2A, two essential components of the chaperone-mediated autophagy (CMA) mechinery, resulting in its autophagic degradation.
SIGNOR-277837
Q8N6T7
Q00987
0
ubiquitination
down-regulates quantity
0.415
These results suggest that MDM2 degrades SIRT6 in a proteasome dependent manner.|USP10 has been shown to deubiquitinate and stabilize p53, a well-known substrate of MDM2, suggesting a mechanism whereby SIRT6 is ubiquitinated and destabilized by MDM2, which could be reversed by USP10 mediated deubiquitination.
SIGNOR-278702
P35869
P04798
1
transcriptional regulation
up-regulates quantity by expression
0.684
Kaempferol proved to be capable of inhibiting binding of agonist and agonist-induced formation of the AHR/ARNT DNA-binding complex and upregulation of the AHR target gene, CYP1A1.
SIGNOR-259909
O43524
Q13547
0
deacetylation
up-regulates activity
0.368
The ability of HDAC1 to cause muscle atrophy required its deacetylase activity and was linked to the induction of several atrophy genes by HDAC1, including atrogin-1, which required deacetylation of FoxO3a
SIGNOR-256486
Q14934
P45983
0
phosphorylation
up-regulates activity
0.467
Here, we showed that the nuclear factor of activated T3 (NFAT3) is phosphorylated by JNK1 or JNK2 at Ser(213) and Ser(217), which are located in the conserved SP motif.|Moreover, a 3xNFAT-luc reporter gene assay indicated that NFAT3 transcriptional activity was increased in a dose dependent manner by JNK1 or JNK2.
SIGNOR-280033
P51608
P18031
1
transcriptional regulation
down-regulates quantity by repression
0.2
In this study, we have demonstrated that the PTPN1 gene, which encodes PTP1B, was a direct target of MECP2 and that PTP1B protein levels were dramatically increased in Mecp2-mutant mice and in fibroblasts derived from patients with RTT.
SIGNOR-264546
Q9HAU4
P36894
1
ubiquitination
down-regulates
0.552
Smurf1 and smurf2 are e3 ubiquitin ligases known to suppress tgf-beta signaling through degra-dation of smads and receptors for tgf-beta and bmps
SIGNOR-192898
P42568
O00141
0
phosphorylation
down-regulates activity
0.509
In addition to Nedd4-2, Sgk1 also phosphorylates Af9, forkhead like transcription factor FOXO3a and several other substrates.|Sgk1 impairs the ability of Af9 to interact with Dot1a at these subregions without impacting Af9 DNA binding activity, leading to targeted histone H3 K79 hypomethylation.
SIGNOR-279111
O60381
P14598
1
transcriptional regulation
down-regulates quantity by repression
0.265
Together, these results indicate that HBP1 may contribute to the regulation of NADPH oxidase-dependent superoxide production through transcriptional repression of the p47phox gene. 
SIGNOR-261614
O43791
P10070
1
ubiquitination
down-regulates quantity
0.71
RNAi knockdown of Spop (a substrate-binding adaptor for the cullin3-based ubiquitin E3 ligase) in Sufu mutant mouse embryonic fibroblasts (MEFs) can restore the levels of Gli2 and Gli3 full-length proteins
SIGNOR-268860
Q9ULV8
P12931
0
phosphorylation
up-regulates
0.537
Phosphorylation of a critical tyrosine (tyr-341) in the linker region of cbl-c by src or a phosphomimetic mutation of this tyrosine (y341e) is sufficient to increase the e3 activity of cbl-c.
SIGNOR-165862
P17275
Q9Y222
0
transcriptional regulation
up-regulates quantity by expression
0.265
 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-261585
Q13621
Q9UEW8
0
phosphorylation
up-regulates activity
0.577
 We establish that the SPAK and OSR1 kinases activated by WNK interact with an RFQV motif on NKCC2 and directly phosphorylate Thr95, Thr100, Thr105 and, possibly, Ser91.Using these phosphorylation-specific antibodies we establish that hypotonic low-chloride stimulation induces marked phosphorylation of overexpressed NKCC2 in HEK-293 cells at Ser91, Thr100, Thr105 and Ser130 (Fig. 3A).
SIGNOR-276308
P00519
P49759
0
phosphorylation
down-regulates
0.259
Here, we identify clk1, clk4, mst1, mst2 and ttk (also known as mps1) as novel thr735 kinases in vitro / phosphorylation of thr735 in c-abl is critical for binding to 14-3-3
SIGNOR-181031
P12931
P35222
1
phosphorylation
down-regulates activity
0.761
beta-catenin is a good substrate of pp60c- srctyrosine kinase in vitro;this kinase modifies specifically tyr-86 and tyr-654although consistently detected, this negative effect of tyr-86 phosphorylation on tbp binding was clearly less important than the positive effect observed after tyr-654 phosphorylation.
SIGNOR-106458
Q96T88
P24941
0
phosphorylation
down-regulates quantity by destabilization
0.303
UHRF1 is phosphorylated by CDK2/cyclin A. In vitro kinase assay was performed with CDK2/cyclin A using recombinant wild-type UHRF1 or UHRF1-S674A mutant 
SIGNOR-277192
Q16549
Q92945
1
phosphorylation
down-regulates
0.2
Ksrp phosphorylated by p38 displays compromised binding to are-containing transcripts and fails to promote their rapid decay,although it retains the ability to interact with the mrna degradation machinery.
SIGNOR-143167
P17275
Q16539
0
phosphorylation
up-regulates
0.502
These results clearly demonstrate that phosphorylation by p38 kinase is essential for the regulation of dmp1 transcription by junb and p300. phosphorylation of junb at ser-79 was found to be essential for its interaction with p300.
SIGNOR-127545
O00444
Q969U6
1
phosphorylation
down-regulates activity
0.543
The activity of SCF-FBXW5 is in turn negatively regulated by Polo-like kinase 4 (PLK4), which phosphorylates FBXW5 at Ser 151 to suppress its ability to ubiquitylate HsSAS-6.
SIGNOR-275476
O75379
P68400
0
phosphorylation
up-regulates
0.446
The r-snare vamp4, which contains a dileucine motif, binds to the ap-1 or the ggas. Serine 20 and leucines 25,26 are essential for this binding. Ap-1 association with vamp4 is enhanced when serine 30 is phosphorylated by casein kinase 2. This phosphorylation-dependent modulation of ap-1 binding is mediated by pacs-1 (phosphofurin acidic cluster sorting protein). Ablation of both the dileucine motif and serine 30 results in a dramatic mislocalization of vamp4 in the regulated secretory pathway.
SIGNOR-119090
Q14289
Q02535
1
phosphorylation
up-regulates quantity
0.2
Taken together these findings demonstrated that Pyk2 mediates the expression of ID3 protein.|Together these findings from the combined MS+MS/MS data confirm that Flag tagged ID3 is phosphorylated by active recombinant Pyk2 kinase; and support the phospho-Tyr band that was detected at the corresponding MW ~ 13 kDA for Flag-ID3 by immunoblot.
SIGNOR-278496
Q13409
Q8NG06
0
polyubiquitination
down-regulates quantity by destabilization
0.298
Trim58 ubiquitinates dynein and promotes its proteasomal degradation. Trim58 binds DIC directly, polyubiquitinates it in vitro, and induces proteasomal degradation of the dynein holocomplex in vivo.
SIGNOR-272841
Q99856
P0DOX3
1
transcriptional regulation
up-regulates quantity by expression
0.2
In this work, we show that TFII-I directly interacts with human Bright through amino acids in Bright's protein interaction domain and that specific tyrosine residues of TFII-I are essential for Bright-induced activity of an immunoglobulin reporter gene. Moreover, inhibition of TFII-I function in a B-cell line resulted in decreased heavy-chain transcript levels.| Figure ​3 shows that both anti-Bright and anti-TFII-I precipitated the bf150 Bright binding site from the B-cell line but not from a T-cell line that contains but does not express the V1 gene.
SIGNOR-268531
Q92915
O60674
0
phosphorylation
up-regulates activity
0.2
JAK2 regulates Nav1.6 channel function via FGF14Y158 phosphorylation|Patch-clamp electrophysiology revealed that through Y158, JAK2 controls FGF14-dependent modulation of Nav1.6 channels. In hippocampal CA1 pyramidal neurons, the JAK2 inhibitor Fedratinib reduced firing by a mechanism that is dependent upon expression of FGF14.
SIGNOR-275747
Q8TDC3
Q8N5S9
0
phosphorylation
up-regulates activity
0.307
In transfected COS-7 cells, kinase activity and Thr (189) phosphorylation of overexpressed SAD-B were significantly enhanced by coexpression of constitutively active CaMKKalpha (residues 1-434) in a manner similar to that observed with coexpression of LKB1, STRAD, and MO25.|Taken together, these results indicate that CaMKKalpha is capable of activating SAD-B through phosphorylation of Thr (189) both in vitro and in vivo and demonstrate for the first time that CaMKK may be an alternative activating kinase for SAD-B.
SIGNOR-280202
A8K4G0
P06241
0
phosphorylation
up-regulates activity
0.308
As CD300b phosphorylation was occurring only in the presence of both c-Fyn and DAP-12, we addressed whether tyrosine phosphorylation was required for association of CD300b and DAP-12. For this purpose, we generated a set of HA-tagged CD300b mutants affecting the transmembrane lysine (K158L), the cytoplasmic tyrosine (Y188F) or both residues.|As expected, the CD300b double mutant could neither recruit DAP-12 nor become phosphorylated in the presence of c-Fyn kinase (Fig. 5⇑C). Association between CD300b and DAP-12 was maintained in absence of the c-Fyn kinase, indicating that phosphorylation of the adaptor was not essential for the formation of the complex (data not shown)
SIGNOR-264771
Q15717
P06493
0
phosphorylation
down-regulates activity
0.407
Cdk1 inhibition promoted a cytoplasmic accumulation of HuR, while a predominately nuclear localization of HuR was observed under conditions of high Cdk1 activity.|Kim et al. further showed that Cdk1-dependent Ser-202 phosphorylation of HuR was essential for 14-3-3\u03b8 binding to HuR.
SIGNOR-279014
Q92973
O15534
1
relocalization
up-regulates activity
0.268
The non-classical nuclear import carrier Transportin 1 modulates circadian rhythms through its effect on PER1 nuclear localization
SIGNOR-262102
Q13131
O60825
1
phosphorylation
up-regulates activity
0.464
Heart 6-phosphofructo-2-kinase activation by insulin results from ser-466 and ser-483 phosphorylation and requires 3-phosphoinositide-dependent kinase-1, but not protein kinase b.
SIGNOR-84061
Q96EB6
P04637
1
deacetylation
down-regulates
0.803
Sirt1 has been shown to regulate cell fate in part by deacetylating the p53 protein at lysine 382 and inhibiting p53-mediated transcriptional activation and apoptosis.
SIGNOR-182515
Q8WTR2
P45983
1
dephosphorylation
down-regulates
0.421
Skrp1 was highly specific for c-jun n-terminal kinase (jnk) in vitro and effectively suppressed the jnk activation in response to tumor necrosis factor alpha or thapsigargin skrp1 does not bind directly to its target jnk, but co-precipitation of skrp1 with the mapk kinase mkk7, a jnk activator, was found in vitro and in vivo.
SIGNOR-117260
P35568
Q02750
0
phosphorylation
down-regulates
0.352
Thus, at least three kinases mediate phosphorylation of ser307, including jnk, serine kinases in the pi 3-kinase cascade that are activated byinsulinor igf-1, and mek1-sensitive kinase cascades during tnf-alfa stimulation.
SIGNOR-236611
O75385
Q86WV6
1
phosphorylation
down-regulates activity
0.2
Collectively, our data indicates that cGAS is essential for the activation of AMPK and ULK1 suppression of STING (XREF_FIG) and that cGAMPs are responsible for triggering the dephosphorylation of AMPK T172 and activation of ULK1 which phosphorylates STING on S366 to impede its activity (XREF_FIG).|Collectively, our data indicates that cGAS is essential for the activation of AMPK/ULK1 suppression of STING ( xref ) and that cGAMPs are responsible for triggering the dephosphorylation of AMPK T172 and activation of ULK1 which phosphorylates STING on S366 to impede its activity ( xref ).
SIGNOR-279316
Q02156
Q9H9S0
1
phosphorylation
up-regulates activity
0.329
Taken together, our results demonstrate that PKC\u03b5-mediated phosphorylation at T200 and T280 enhances Nanog protein stability in head and neck squamous cell carcinoma.|These observations confirm that PKCepsilon modulates Nanog transcriptional activity and demonstrate that Nanog is phosphorylated by PKCepsilon at T200 and T280 in vivo.
SIGNOR-278203
P23443
P36956
1
phosphorylation
up-regulates activity
0.424
Besides promoting protein synthesis, S6K1 also phosphorylates and activates sterol regulatory element binding protein 1 and 2 (SREBP and SREBP2), which promotes de novo lipid synthesis that is critical for cell growth and proliferation.|Besides promoting protein synthesis, S6K1 also phosphorylates and activates sterol regulatory element-binding protein 1 and 2 (SREBP and SREBP2), which promotes de novo lipid synthesis that is critical for cell growth and proliferation ( xref ).
SIGNOR-280120
Q92830
P11802
0
phosphorylation
up-regulates activity
0.36
Activated cyclin D1-Cdk4 kinase phosphorylates and activates GCN5|GCN5 T272A/S372A (AA) phosphorylation by cyclin D1-CDK4 kinase is diminished compared to GCN5 wild-type (WT)
SIGNOR-275494
P17480
P24941
0
phosphorylation
up-regulates activity
0.372
Phosphorylation of ubf at serine 388 is required for interaction with rna polymerase i and activation of rdna transcription. After g(1) progression ubf is phosphorylated at serine 388 by cdk2/cyclin e and cdk2/cyclin a. Conversion of serine 388 to glycine abolishes ubf activity
SIGNOR-235419
P43250
P08069
1
phosphorylation
down-regulates quantity by destabilization
0.306
GRK2 and GRK6 coimmunoprecipitate with IGF-1R and increase IGF-1R serine phosphorylation, promoting β-arrestin1 association. Using immunoprecipitation, confocal microscopy, and FRET analysis, we demonstrated β-arrestin/IGF-1R association to be transient for GRK2 and stable for GRK6. Using bioinformatic studies we identified serines 1248 and 1291 as the major serine phosphorylation sites of the IGF-1R. Targeted mutation of S1248 recapitulates GRK2 modulation, whereas S1291 mutation resembles GRK6 effects on IGF-1R signaling/degradation
SIGNOR-276412
P28482
P09917
1
phosphorylation
up-regulates activity
0.381
Intriguingly, a significant difference in the potency of nonredox-type inhibitors (but not of BWA4C) was determined between wild-type 5-LO and the mutant S271A/S663A-5-LO (lacking phosphorylation sites for ERK1/2 and MAPKAPK-2) in HeLa cells. Collectively, our data suggest that compared with Ca2+-mediated 5-LO product formation, enzyme activation involving 5-LO phosphorylation events specifically and strongly alters the susceptibility of 5-LO toward nonredox-type inhibitors in intact cells.
SIGNOR-264409
Q8WYQ5
P00519
0
phosphorylation
up-regulates activity
0.2
The kinase ABL phosphorylates the microprocessor subunit DGCR8 to stimulate primary microRNA processing in response to DNA damage. When coexpressed in HEK293T cells, ABL phosphorylated DGCR8 at Tyr(267).
SIGNOR-262604
Q15772
Q9BR39
1
phosphorylation
up-regulates activity
0.36
Studies in HEK293 cells confirmed that SPEG overexpression increases JPH2 phosphorylation .
SIGNOR-279759
P01116
Q5VWQ8
0
gtpase-activating protein
down-regulates activity
0.518
The GAP domain of DAB2IP is homologous to other Ras-GAPs, such as GAP120 and neurofibromin (NF1), and can stimulate the GTPase activity of RAS proteins both in vitro and in cancer cell lines. DAB2IP is able to stimulate in vitro and in vivo the GTPase activity of RAS proteins (H-Ras, K-Ras, and N-Ras) facilitating GTP hydrolysis to GDP.
SIGNOR-254746
O60566
Q96SN8
0
transcriptional regulation
up-regulates quantity by expression
0.27
These data indicate that CDK5RAP2 is a positive regulator of both the BUBR1 promoter and the MAD2 promoter
SIGNOR-260312