IdA
string
IdB
string
labels
int64
mechanism
string
effect
string
score
float64
sentence
string
signor_id
string
P46937
O00506
0
phosphorylation
up-regulates activity
0.265
Collectively, our data demonstrate that loss of STK25 promotes YAP/TAZ activation.|Lastly, we assessed if STK25 is able to promote YAP phosphorylation in the absence of LATS-HM phosphorylation, based on our in vitro kinase assay results.
SIGNOR-278993
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
Q9H3D4
Q6ZMZ3
1
transcriptional regulation
up-regulates quantity by expression
0.2
Here we show that in the developing skin, epidermal progenitor cells of mice lacking p63 transcription factor display alterations in the nuclear shape accompanied by a marked decrease in expression of several nuclear envelope-associated components (Lamin B1, Lamin A/C, Sun1, Nesprin-3, Plectin) compared with controls. Furthermore, chromatin immunoprecipitation-quantitative PCR assay showed enrichment of p63 on Sun1, Syne3, and Plec promoters, suggesting them as p63 targets.
SIGNOR-263280
O43524
O15111
0
phosphorylation
down-regulates
0.572
Ikappab kinase promotes tumorigenesis through inhibition of forkhead foxo3a. The tnf treatment of ht-29 cells increased ikk-dependent foxo3 ser644 phosphorylation.
SIGNOR-124203
Q93079
Q14493
0
translation regulation
up-regulates quantity by expression
0.2
Synthesis of mature histone mRNA requires only a single processing reaction: an endonucleolytic cleavage between a conserved stem-loop and a purine-rich downstream element to form the 3' end. The stem-loop binding protein (SLBP) is required for processing, and following processing, histone mRNA is transported to the cytoplasm, where SLBP participates in translation of the histone mRNA|We used radiolabeled probes generated by PCR targeting the open reading frame (ORF) to detect histones H2A, H2B, H3, H4, and H1 and used 7SK snRNA as a loading control (Fig. 2A). The abundance of histone H2A, H2B, H3, and H4 mRNAs is reduced to 37% to 70% of control levels in the SLBP knockdown cells when compared to the C2 control.
SIGNOR-265391
P27361
Q9H9S0
1
phosphorylation
down-regulates
0.492
We found that activation of ERK1 signaling inhibited transactivation activity of Nanog.|We showed the direct phosphorylation of Nanog by ERK1 and clearly showed that Ser52 is the major phosphorylation site and Ser65 is weakly phosphorylated by ERK1.
SIGNOR-278487
P04629
P06241
0
phosphorylation
up-regulates activity
0.254
Here, we demonstrate that Fyn can directly phosphorylate the intracellular domain of TrkA and that its kinase activity towards Trk is increased by GPCR stimulation ( Fig. 4 ).
SIGNOR-279410
P51812
Q9H6Z4
1
phosphorylation
up-regulates quantity
0.328
RSK phosphorylates RanBP3 at Serine 58 residue in vitro and in vivo.RanBP3 phosphorylation increases its affinity towards Ran
SIGNOR-276148
P24941
Q14106
1
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
P68400
P52907
1
phosphorylation
up-regulates
0.2
We demonstrate that ser9 of cpalpha is phosphorylated by protein kinase ck2 in vitro, that cpalpha is phosphorylated in vivo. Finally, we demonstrate that ckip-1 and ck2 inhibit the activity of actin capping protein at the barbed ends of actin filaments.
SIGNOR-135422
P19174
P00533
0
phosphorylation
up-regulates
0.841
We have identified the sites phosphorylated in vitro by epidermal growth factor (egf) receptor kinase in bovine brain phospholipase c-gamma (plc-gamma). They are tyrosine residues 472, 771, 783, and 1254. we propose, therefore, that the phosphorylation of plc-gamma by egf receptor kinase alters its interaction with putative inhibitory proteins and leads to its activation.
SIGNOR-20984
Q9NXA8
P11413
1
catalytic activity
up-regulates activity
0.278
Here, we report that SIRT5 desuccinylates and deglutarylates isocitrate dehydrogenase 2 (IDH2) and glucose-6-phosphate dehydrogenase (G6PD), respectively, and thus activates both NADPH-producing enzymes.
SIGNOR-261211
O00444
Q9UPN4
1
phosphorylation
up-regulates activity
0.534
We conclude that PLK4 phosphorylates CEP131 at Ser 78 to maintains centriolar satellite integrity.
SIGNOR-280075
P23352
Q12857
0
transcriptional regulation
down-regulates quantity
0.2
By integrating transcriptomic profiling (RNA-seq) of Nfia- and Nfix-deficient GNPs with epigenomic profiling (ChIP-seq against NFIA, NFIB and NFIX, and DNase I hypersensitivity assays), we reveal that these transcription factors share a large set of potential transcriptional targets, suggestive of complementary roles for these NFI family members in promoting neural development
SIGNOR-268872
Q9NRC8
Q13131
0
phosphorylation
down-regulates quantity by destabilization
0.2
Here, the authors show that energy stress induces an AMPK-dependent phosphorylation of Sirt7, which promotes its ubiquitin-independent degradation by REGγ, resulting in the down-regulation of rRNA transcription and cell survival.|These results strongly suggest that the phosphorylation status of SirT7 at T153 plays a crucial role in determining its subcellular distribution, degradation and binding to REGγ.
SIGNOR-275864
P37088
Q96PU5
0
ubiquitination
down-regulates quantity by destabilization
0.775
The serum and glucocorticoid inducible kinase 1 (SGK1) is induced in the aldosterone sensitive distal nephron (ASDN) where it may stimulate Na reabsorption, partly by inhibiting ubiquitin ligase Nedd4-2-mediated retrieval of epithelial Na+ channel ENaC from the luminal membrane.
SIGNOR-251948
Q13976
Q13507
1
phosphorylation
down-regulates
0.408
The present study demonstrates that human trpc3 expressed in hek293 cells forms store-operated ca2+ influx channels, the activity of which is inhibited by pkg. The inhibition is due to a direct phosphorylation of pkg on trpc3 channels at position t11 and s263.
SIGNOR-142961
Q13131
Q9H2X6
1
phosphorylation
up-regulates activity
0.2
These results indicate that HIPK2 is a substrate of AMPKα2 in vitro and in vivo. Site-directed mutagenesis of Thr112 and Ser114 in the N terminus, and Thr1107 in the C terminus markedly reduced HIPK2 phosphorylation by AMPKα2 in vitro (Figure S5J).
SIGNOR-276469
A7KAX9
P04629
0
relocalization
up-regulates
0.602
Grit translocation was regulated by receptor stimulation
SIGNOR-95809
P54132
Q8IYW5
0
ubiquitination
up-regulates activity
0.262
Here, we demonstrate that the ubiquitin/SUMO-dependent DNA damage response (UbS-DDR), controlled by the E3 ligases RNF8/RNF168, triggers BLM recruitment to sites of replication fork stalling via ubiquitylation in the N-terminal region of BLM and subsequent BLM binding to the ubiquitin-interacting motifs of RAP80. 
SIGNOR-272114
P23760
P22455
1
transcriptional regulation
up-regulates quantity by expression
0.365
FGFR4 is a transcriptional target of PAX3 and the PAX3-FOXO1 fusion protein found in ARMS.
SIGNOR-251572
Q9HBA0
P06241
0
phosphorylation
up-regulates activity
0.35
ROS could be detected by Fyn, which is required to activate TRPV4 in a redox-sensitive manner.|The Ca 2+ response to H 2 O 2 required the basal phosphorylation of TRPV4 by the Src kinase Fyn, which may serve as the redox sensor responsible for TRPV4 activation (Figure 2 ) [220] , and was able to increase barrier permeability [219] .
SIGNOR-279991
P84022
Q96PU5
0
ubiquitination
down-regulates activity
0.805
Through its ww domain, nedd4l specifically recognizes a tgf-beta-induced phosphothr-protyr motif in the linker region, resulting in smad2/3 polyubiquitination and degradation
SIGNOR-232104
Q13976
P50552
1
phosphorylation
down-regulates activity
0.735
 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-268289
Q14896
P22612
0
phosphorylation
up-regulates
0.275
Phosphorylation of cmybp-c by pka speeds actomyosin interactions and contributes to increased cardiac contractility following _-adrenergic stimulation.7, 8 phosphorylation by pka is essential for proper cardiac function /for the human isoform, three pka sites were previously identified (ser275, ser284, and ser304) /our results indicate that pka phosphorylates up to four sites in both the murine and human m-domains including a novel site not previously described for either protein (ser307 for mouse and ser311 for human).
SIGNOR-163788
Q05397
O75962
1
phosphorylation
up-regulates activity
0.509
A FAK phosphorylation site, tyrosine residue 2737, was identified in subdomain I of the Trio kinase domain. Additionally, in vitro phosphorylation assays and in vivo co-expression studies indicated that Trio enhances FAK kinase activity.
SIGNOR-249188
P45983
Q96FI4
1
phosphorylation
up-regulates activity
0.2
These data confirm that NEIL1 can be phosphorylated by JNK1 in vitro at S207, S306, and S61.
SIGNOR-278315
P28906
P08047
0
transcriptional regulation
up-regulates quantity by expression
0.263
Activation of the CD34 promoter by Sp1 requires the presence of a binding domain at -48 bp as well as the 5' untranslated region, which also binds Sp1
SIGNOR-241481
P05412
Q96KB5
0
phosphorylation
up-regulates activity
0.43
TOPK promotes lung cancer resistance to EGFR tyrosine kinase inhibitors by phosphorylating and activating c-Jun.|These data confirm the phosphorylation of c-Jun by TOPK at serine 63 and 73 during the development of resistance to EGFR-targeted TKIs.
SIGNOR-278156
Q08881
P42680
1
phosphorylation
up-regulates
0.407
Tec family protein tyrosine kinases (tfks) play a central role in hematopoietic cellular signaling. Initial activation takes place through specific tyrosine phosphorylation situated in the activation loop. Further activation occurs within the sh3 domain via a transphosphorylation mechanism. Here, we could confirm that y223 is the only site in the btk-sh3 domain being detectably phosphorylated
SIGNOR-98090
Q96EB6
P42345
0
phosphorylation
down-regulates activity
0.551
These results demonstrate that the inhibition of SIRT1 by mTOR fosters survival of DNA damage-induced prematurely senescent squamous cell carcinoma cells via Bfl-1/A1 in the absence of functional p53.|This process involved the mTOR-dependent phosphorylation of SIRT1 at serine 47, resulting in the inhibition of the deacetylase activity of SIRT1.
SIGNOR-280047
P18848
O75807
1
transcriptional regulation
up-regulates quantity by expression
0.657
ATF4 also induces another bZIP protein C/EBP-homologous protein (CHOP), which is responsible for triggering apoptosis in cells under prolonged ER stress. ATF4 and CHOP further induce growth arrest and DNA damage–inducible protein 34 (GADD34),a regulatory subunit of protein phosphatase 1 (PP1) that dephosphorylates eIF2α. This negative feedback mechanism enables protein synthesis to resume after resolution of ER stress.
SIGNOR-260172
Q9BXW9
Q9NW38
0
ubiquitination
up-regulates activity
0.9
Thus, eight of the nine components of the FA core complex are FA proteins (FANC‐A, B, C, E, F, G, L, and M). Furthermore, two of the newly discovered FA proteins have enzymatic activities: FANCL is a ubiquitin ligase essential for FANCD2 monoubiquitination in vivo 
SIGNOR-263250
P07948
O15492
1
phosphorylation
up-regulates activity
0.346
Lyn kinase phosphorylated recombinant RGS16 in vitro. Induction of RGS16 tyrosine phosphorylation was associated with increased RGS16 protein levels and enhanced GAP activity in cell membranes.
SIGNOR-251410
P35354
Q14934
0
transcriptional regulation
up-regulates quantity by expression
0.282
NFAT induces the transcription of the COX2 (cyclo-oxygenase-2) gene incancer cells thereby enhancing invasive migration
SIGNOR-264027
Q13950
P49841
0
phosphorylation
down-regulates activity
0.301
Collectively, these data demonstrate that the kinase activity of GSK-3beta suppresses the Runx2 transcriptional activity.|In vitro kinase assay confirmed that the Runx2 phosphorylation by GSK-3\u03b2 was reduced by the S369-S373-S377 mutation ( xref ).
SIGNOR-279051
Q9NX95
Q16623
1
relocalization
up-regulates activity
0.421
Conventional kinesin I heavy chain binds to syntabulin and associates with syntabulin-linked syntaxin vesicles in vivo. These findings suggest that syntabulin functions as a linker molecule that attaches syntaxin-cargo vesicles to kinesin I, enabling the transport of syntaxin-1 to neuronal processes.
SIGNOR-264812
P29375
P31749
0
phosphorylation
up-regulates activity
0.303
We immunoprecipitated ectopically expressed wild-type KDM5A or KDM5Amut5A and performed an in vitro kinase assay using recombinant AKT1 in the presence or absence of AKT inhibition.Wild-type KDM5A is phosphorylated by AKT1 and this modification is sensitive to AKT inhibition, whereas KDM5Amut5A is not phosphorylated in the presence of AKT1 (Figure 3C).These results suggest that AKT-mediated KDM5A phosphorylation enhances KDM5A promoter recruitment.
SIGNOR-274062
O75385
Q9C0C7
1
phosphorylation
up-regulates
0.695
When autophagy is induced, ulk1 phosphorylates ambra1, releasing the autophagy core complex from dynein. Its subsequent relocalization to the endoplasmic reticulum enables autophagosome nucleation. Ambra1-dlc1 dissociates from the dynein complex upon ulk1-dependent ambra1 phosphorylation.
SIGNOR-168292
P00519
P56962
1
phosphorylation
down-regulates activity
0.2
C-Abl was identified as one of the kinases, which phosphorylates syntaxin 17.Western blot shows phosphorylation of syntaxin 17 on Tyr-156 by overexpression and activation of c-Abl. A phospho-mimicking mutant (Y156E) of syntaxin 17 showed reduced interaction with COPI vesicles. These results suggest that tyrosine phosphorylation of syntaxin 17 is likely to have a role in regulating syntaxin 17 dependent membrane trafficking in the early secretory pathway.
SIGNOR-273538
Q7L2J0
Q6NYC1
0
cleavage
down-regulates activity
0.268
JMJD6 cleaves MePCE. we propose that JMJD6 is the cognate protease of MePCE and cleaves at the R171 site within MePCE. Experiments using purified JMJD6 showed that it could make a cut in an enzyme called MePCE, which belongs to the group of proteins that hold P-TEFb in its inactive form. The levels of activated Pol II were lower in cells without JMJD6 and higher in those without MePCE. Together, the results suggest that JMJD6 cuts MePCE to release P-TEFb, which then activates Pol II.
SIGNOR-261037
Q00610
P12931
0
phosphorylation
up-regulates
0.406
Egf-mediated clathrin phosphorylation is followed by clathrin redistribution to the cell periphery and is the product of downstream activation of src kinase by egf receptor (egfr) signaling
SIGNOR-65714
P35398
O00327
1
transcriptional regulation
up-regulates quantity by expression
0.689
Direct Regulation of the NPAS2 Promoter by RORα and REV-ERBα. it appears in the context of the NPAS2 promoter RORα functions as a transcriptional activator, but REV-ERBα may only function as an inhibitor of RORα activity by blocking binding.
SIGNOR-267982
Q13202
Q16539
1
dephosphorylation
down-regulates
0.591
M3/6 (dusp8) is a dual-specificity phosphatase implicated in the dephosphorylation and inactivation of jnk and, to a lesser extent, p38 mapk
SIGNOR-199695
Q9Y2I6
P53350
0
phosphorylation
down-regulates activity
0.7
Here, we identify a centrosomal plk1 substrate, termed nlp (ninein-like protein), whose properties suggest an important role in microtubule organization. Nlp interacts with two components of the gamma-tubulin ring complex and stimulates microtubule nucleation. Plk1 phosphorylates nlp and disrupts both its centrosome association and its gamma-tubulin interaction
SIGNOR-103356
Q9UQC2
P28482
0
phosphorylation
up-regulates
0.68
Phosphorylation of grb2-associated binder 2 on serine 623 by erk mapk regulates its association with the phosphatase shp-2 and decreases stat5 activation.We and others have demonstrated that il-2-induced tyrosine phosphorylation of gab2 and its interaction with its sh2 domain-containing partners, shp-2, p85 pi3k, and crkl (5, 26, 27). we report that pretreatment of kit 225 cells with the mek inhibitor u0126, strongly decreased the characteristic shift of gab2 in response to il-2 and increased gab2/shp-2 association, an effect that could be ascribed to erk phosphorylation of serine 623.
SIGNOR-128727
Q16595
Q9BV68
0
ubiquitination
down-regulates quantity by destabilization
0.385
Depletion of RNF126 by specific small interfering RNA delays the degradation of frataxin precursor and increases its stability.|Here we report on the identification of really interesting new gene finger protein 126 (RNF126) as the E3 ligase that ubiquitinates frataxin.
SIGNOR-278663
P27361
O43521
1
phosphorylation
down-regulates quantity by destabilization
0.731
In vitro, bimel was phosphorylated by extracellular signal-regulated kinase on ser(69), which resides in the bimel-specific insert region. Using phosphospecific antibody against this site, we show that this residue is actually phosphorylated in cells. We also show that phosphorylation of ser(69) promotes ubiquitination of bimel. We conclude that mek inhibitors sensitize mda-mb231 and hbc4 cells to anoikis by blocking phosphorylation and hence degradation of bimel
SIGNOR-129878
P30291
O14757
0
phosphorylation
up-regulates
0.611
Chk1 also phosphorylates and stabilizes wee1.
SIGNOR-163164
O14595
Q15797
1
dephosphorylation
down-regulates
0.5
In human cells, rnai-mediated depletion of scp1 and scp2 increases the extent and duration of smad1 phosphorylation in response to bmp, the transcriptional action of smad1, and the strength of endogenous bmp gene responses. The present identification of the scp family as smad c-terminal phosphatases sheds light on the events that attenuate smad signaling and reveals unexpected links to the essential phosphatases that control rna polymerase ii in eukaryotes.
SIGNOR-148434
Q9Y625
O95644
0
transcriptional regulation
up-regulates quantity by expression
0.251
NFAT transcriptionally regulates GPC6 induction in breast cancer cells and binds to three regulatory elements in the GPC6 proximal promoter. Expression of GPC6 in response to NFAT signalling promotes invasive migration, whereas GPC6 silencing with shRNA (small-hairpin RNA) potently blocks this phenotype.
SIGNOR-264022
Q02224
O43683
0
relocalization
up-regulates activity
0.831
Spindle checkpoint protein Bub1 is required for kinetochore localization of Mad1, Mad2, Bub3, and CENP-E, independently of its kinase activity
SIGNOR-252016
P51608
P16220
1
post transcriptional regulation
up-regulates quantity by expression
0.531
Interestingly, Creb1 was one of the activated MeCP2 targets that we validated by quantitative real-time RT-PCR (Fig. 1C), and using ChIP analysis we found that in vivo MeCP2 binds to the promoter region of Creb1, with significantly enhanced binding in MECP2-Tg samples compared to WT (p < 0.05) | In addition, Sst and CREB1 protein levels were increased in MECP2-Tg hypothalami compared to WT, indicating that MeCP2 indeed enhances expression of Sst and Creb1
SIGNOR-264682
P19634
P28482
0
phosphorylation
up-regulates
0.669
We have demonstrated that the map kinases extracellular signal-regulated kinases 1 and 2 (erk1/2) are implicated in growth factor activation of nhe1. / our results suggest that amino acids ser770 and ser771 mediate erk-dependent activation of the na+/h+ exchanger in vivo.
SIGNOR-151925
P43403
P23470
0
dephosphorylation
up-regulates activity
0.26
PTPRG activation by the P1-WD peptide affected the tyrosine phosphorylation of several signaling molecules. Data analysis identified 31 molecules whose phosphorylation was modified in a statistically significant manner (Table I). inhibition of ABL1, BMX, BTK, DAB1, ITGB1, JAK2, KDR, KIT, LIMK1, MET, PDGFRB, SHC1, and VCL correlates with tyrosine dephosphorylation. In contrast, SRC inhibition correlates with hyperphosphorylation of the inhibitory Tyr530 residue and with dephosphorylation of the activatory Tyr419. Moreover, CDK2 and CTTN inhibition correlates with a hyperphosphorylation of the inhibitory Tyr15 and Tyr470, respectively. In contrast, a subgroup of 13 proteins, including BLNK, DOK2, ERBB2, GRIN2B, INSR, PDGFRA, PRKCD, PXN, STAT1, STAT2, STAT3, STAT5A, and ZAP70, appears to be activated by PTPRG activity.
SIGNOR-254733
Q01973
P21860
1
phosphorylation
up-regulates activity
0.343
Here we show that NKX2-1 induces the expression of the receptor tyrosine kinase-like orphan receptor 1 (ROR1), which in turn sustains a favorable balance between prosurvival PI3K-AKT and pro-apoptotic p38 signaling, in part through ROR1 kinase-dependent c-Src activation, as well as kinase activity-independent sustainment of the EGFR-ERBB3 association, ERBB3 phosphorylation, and consequential PI3K activation.|ROR1 knockdown decreased phosphorylations of ERBB3, c-Src, and AKT in NKX2-1 + / ROR1 + NCI-H1975, SK-LC-5, and NCI-H358 cells.
SIGNOR-279279
O15297
P13051
1
dephosphorylation
down-regulates activity
0.377
PPM1D dephosphorylation of UNG2 is correlated with reduced UNG2 activity on uracil-containing templates.|This result suggests that PPM1D specifically inhibits UNG2 and not other uracil DNA glycosylases.
SIGNOR-277156
Q9UHD2
P56962
1
phosphorylation
up-regulates activity
0.291
Stx17 is phosphorylated by TBK1 whereby phospho-Stx17 controls the formation of the ATG13+FIP200+ mammalian pre-autophagosomal structure (mPAS) in response to induction of autophagy. TBK1 phosphorylates Stx17 at S202.
SIGNOR-273812
P15311
Q9P289
0
phosphorylation
up-regulates
0.2
Activation of ezrin is mediated by initial pip2 binding and subsequent phosphorylation of threonine 567. Mst4 phosphorylates the regulatory t567 residue of ezrin.
SIGNOR-185563
O15297
P53778
1
dephosphorylation
down-regulates
0.297
Ppm1d selectively inhibits p38 activation by dephosphorylating thr 180.
SIGNOR-135976
Q15672
P53671
0
phosphorylation
up-regulates quantity
0.2
LIMK2 directly phosphorylated TWIST1, indicating that LIMK2 also regulates TWIST1 post-translationally (XREF_FIG).|LIMK2 positively regulates TWIST1 protein levels.
SIGNOR-278952
P46940
Q8IVH8
0
phosphorylation
up-regulates activity
0.2
GLK directly phosphorylated IQGAP1 at Ser-480 enhancing Cdc42 activation and subsequent cell migration. 
SIGNOR-277479
P06493
Q15116
1
phosphorylation
down-regulates quantity by destabilization
0.2
We demonstrated that cyclin-dependent kinase 1-mediated phosphorylation of Ser261 residue primes PD-1 protein nucleus translocation and binding with FBW7.
SIGNOR-277605
O43561
Q9H093
0
phosphorylation
down-regulates activity
0.2
Analysis by an in vitro kinase assay revealed that NUAK2 could phosphorylate immunoprecipitated LATS and that this phosphorylation was lost in the LATS double mutant (DM), T246A/S613A (Fig.\u00a0 xref ).|We showed that phosphorylation of Ser613, located upstream of the KD, adjacent to the MOB binding site and to a lesser extent the N-terminal localized T246, are required for NUAK2 to inhibit LATS.
SIGNOR-280052
P27361
P04049
1
phosphorylation
down-regulates activity
0.637
Here, we identify six residues of Raf-1 (S29, S43, S289, S296, S301, and S642) that become hyperphosphorylated in a manner coincident with Raf-1 inactivation. | Five of the identified sites are proline-directed targets of activated ERK, and phosphorylation of all six sites requires MEK signaling, indicating a negative feedback mechanism. Hyperphosphorylation of these six sites inhibits the Ras/Raf-1 interaction and desensitizes Raf-1 to additional stimuli.|FLAG-Raf-1 phosphorylated by activated ERK2
SIGNOR-143688
Q9H2X6
P17096
1
phosphorylation
down-regulates
0.493
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-158620
Q9H0K1
O75581
1
phosphorylation
up-regulates activity
0.2
Mechanistically, SIK2, phosphorylated by CK1α, directly phosphorylated LRP6 in a SIK2 kinase activity-dependent manner, leading to Wnt/β-catenin signaling pathway activation.
SIGNOR-275399
Q7Z5H3
P60953
1
gtpase-activating protein
down-regulates activity
0.543
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-260478
Q16829
P10912
1
dephosphorylation
down-regulates
0.313
Identification of protein tyrosine phosphatases with specificity for the ligand-activated growth hormone receptor.
SIGNOR-104545
Q13882
P23246
1
phosphorylation
down-regulates activity
0.531
BRK phosphorylates PSF promoting its cytoplasmic localization and cell cycle arrest.|These data suggest that BRK activity impedes the ability of PSF to bind RNA.To map the PSF tyrosine residues phosphorylated by BRK and assess if the PSF N-terminal is required for phosphorylation, we co-transfected HEK293 cells with various GFP-PSF deletion mutants in the presence or absence myc-BRK-YF.
SIGNOR-279754
P48729
Q6IE81
1
phosphorylation
down-regulates activity
0.277
We demonstrate that the destruction complex component casein kinase 1α (CK1α) phosphorylates Jade-1 at a conserved SLS motif and reduces the ability of Jade-1 to inhibit β-catenin signaling. 
SIGNOR-273618
O75553
P23470
0
dephosphorylation
down-regulates activity
0.2
PTPRG activation by the P1-WD peptide affected the tyrosine phosphorylation of several signaling molecules. Data analysis identified 31 molecules whose phosphorylation was modified in a statistically significant manner (Table I). inhibition of ABL1, BMX, BTK, DAB1, ITGB1, JAK2, KDR, KIT, LIMK1, MET, PDGFRB, SHC1, and VCL correlates with tyrosine dephosphorylation. In contrast, SRC inhibition correlates with hyperphosphorylation of the inhibitory Tyr530 residue and with dephosphorylation of the activatory Tyr419. Moreover, CDK2 and CTTN inhibition correlates with a hyperphosphorylation of the inhibitory Tyr15 and Tyr470, respectively. In contrast, a subgroup of 13 proteins, including BLNK, DOK2, ERBB2, GRIN2B, INSR, PDGFRA, PRKCD, PXN, STAT1, STAT2, STAT3, STAT5A, and ZAP70, appears to be activated by PTPRG activity.
SIGNOR-254697
P06493
Q14674
1
phosphorylation
down-regulates
0.572
Both cdc2/cyclinb1 and mapk (erk2) efficiently phosphorylate separase at its major inhibitory site in vitro
SIGNOR-113126
Q05655
O15162
1
phosphorylation
up-regulates
0.424
Following the induction of apoptosis, however, phosphorylation of serine residues decreased and it increased on threonine, consistent with the predicted pkc phosphorylation site at thr-161. Transfection of cho cells with scramblase and pkc_, but not scramblase or pkc_ alone, increased scramblase activity
SIGNOR-76904
Q13131
P00390
1
phosphorylation
up-regulates activity
0.288
Mechanistically, AMPKα1 regulate the glutathione reductase (GSR) phosphorylation possibly through residue Thr507 which enhances its activity. 
SIGNOR-273734
O43150
P84077
1
gtpase-activating protein
up-regulates activity
0.655
Pap is a multidomain protein composed of an N-terminal alpha-helical region with a coiled-coil motif, followed by a pleckstrin homology domain, an Arf-GAP domain, an ankyrin homology region, a proline-rich region, and a C-terminal SH3 domain.  In addition, in vitro recombinant Pap exhibits strong GTPase-activating protein (GAP) activity towards the small GTPases Arf1 and Arf5 and weak activity towards Arf6.  Pap protein exhibits Arf GAP activity in vitro.
SIGNOR-269705
O95433
P00519
0
phosphorylation
up-regulates activity
0.251
Here, we show that c-Abl kinase phosphorylates Y223 in human Aha1 (hAha1), promoting its interaction with Hsp90. This, consequently, results in an increased Hsp90 ATPase activity
SIGNOR-260938
O95235
P53350
0
phosphorylation
up-regulates activity
0.761
MKlp2 treated with Plk1 did not form the regular microtubule bundles seen with MKlp2 only; many single microtubules were seen instead, and the bundles that were formed were loose parallel arrays rather than the dense bundles seen with untreated MKlp2.|We propose that phosphorylation of MKlp2 by Plk1 is necessary for the spatial restriction of Plk1 to the central spindle during anaphase and telophase, and the complex of these two proteins is required for cytokinesis.
SIGNOR-278201
Q05086
Q14160
1
polyubiquitination
down-regulates quantity by destabilization
0.552
Human scribble (Vartul) is targeted for ubiquitin-mediated degradation by the high-risk papillomavirus E6 proteins and the E6AP ubiquitin-protein ligase
SIGNOR-272573
Q06124
P43405
1
dephosphorylation
down-regulates activity
0.545
Another SHP isoform, SHP-2, has been linked to negative regulation of Syk.|Syk and LAT are differentially dephosphorylated by SHP-2 and SHP-1, respectively.
SIGNOR-277085
Q16236
P13640
1
transcriptional regulation
up-regulates quantity by expression
0.286
NFE2L2 is stabilized and translocates to the nucleus, where it dimerizes with sMAF proteins. This complex binds to AREs to mediate the transcription of genes involved in iron metabolism, GSH metabolism, and ROS detoxification. The expression of MT1G during ferroptosis is regulated by the NFE2L2 signaling pathway. In the context of cancer, particularly HCC, the upregulation of MT1G has been linked to resistance against sorafenib, a kinase inhibitor commonly used in cancer therapy
SIGNOR-279866
Q9UBK2
Q16539
0
phosphorylation
up-regulates
0.586
Cytokine stimulation of energy expenditure through p38 map kinase activation of ppargamma coactivator-1we show here that many cytokines activate the transcriptional ppar gamma coactivator-1 (pgc-1) through phosphorylation by p38 kinase, resulting in stabilization and activation of pgc-1 proteinp38 mapk directly phosphorylates pgc-1 on residues threonine 262, serine 265, and threonine 298
SIGNOR-112774
Q16612
Q02156
0
phosphorylation
down-regulates quantity by destabilization
0.2
Site-directed mutagenesis of S59A retarded P311 degradation and induced glioma cell motility. In contrast, S59D mutation resulted in the rapid degradation of P311 and reduced glioma cell migration.Taken together, our results show that the serine phosphorylation of P311 is dependent on the function of both PKCε and PKCz.
SIGNOR-273830
P27695
O60260
0
ubiquitination
down-regulates quantity by destabilization
0.2
Based on these results, we conclude that Parkin directly ubiquitinates APE1.|These results indicated that degradation of APE1 by Parkin was limited compared to the transiently expressed APE1, suggesting that a large portion of APE1 is not in contact with the Parkin and PINK1 without induction of stresses such as oxidative stress.
SIGNOR-278531
P35354
P59595
0
transcriptional regulation
up-regulates activity
0.2
SARS-CoV N protein activates COX-2 promoter and induces COX-2 protein expression
SIGNOR-262314
Q04759
P06241
0
phosphorylation
up-regulates
0.344
Further indications of direct interaction are that p59fyn potentiates ?PKC Catalytic activity and that ?PKC Is a substrate for tyrosine phosphorylation by p59fyn.
SIGNOR-68798
Q8IXL6
P23327
1
phosphorylation
up-regulates activity
0.404
Here, we demonstrate that family with sequence similarity 20C (Fam20C), a recently characterized protein kinase in the secretory pathway, phosphorylates HRC on Ser96. HRC Ser96 phosphorylation was confirmed in cells and human hearts.The pSer96-HRC binds tighter to triadin than S96A-HRC, which cannot be phosphorylated. Conversely, S96A-HRC or unphosphorylated Ser96-HRC binds tighter to SERCA2a. This suggests that Ser96-HRC phosphorylation (P) regulates HRC’s interactions with the major SR Ca-cycling proteins.
SIGNOR-273639
P54259
P45984
0
phosphorylation
down-regulates activity
0.2
Dentatorubral-pallidoluysian atrophy protein is phosphorylated by c-jun nh2-terminal kinase. serine 734 of the drpla protein is a phospho-acceptor site by jnk. The phosphorylation may be coupled to the activation of a protease. The molecular size of drpla protein detected in the rat brain with the specific phosphopeptide antibody was 150_kda, which was slightly smaller than that expected from the sequence and the results with the human protein. The phosphorylated forms of ha-tagged human drpla gradually disappeared after osmotic treatment,
SIGNOR-102402
O75914
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-273719
P30041
P28482
0
phosphorylation
up-regulates
0.693
These results show that the mapks can mediate phosphorylation of prdx6 at thr-177 with a consequent marked increase in its aipla(2) activity.
SIGNOR-183379
Q13535
P35790
1
phosphorylation
up-regulates activity
0.248
In particular, ATR phosphorylates Chk 1 and ATM signals to Chk 2.
SIGNOR-280184
P06493
P50613
0
phosphorylation
up-regulates
0.581
The mo15 gene encodes the catalytic subunit of a protein kinase that activates cdc2 and other cyclin-dependent kinases (cdks) through phosphorylation of thr161 and its homologues
SIGNOR-38307
Q16611
O95831
1
relocalization
up-regulates
0.297
First, bax/bak-mediated momp leads to the release of a significant part of the cyt c, smac/diablo and htra2/omi proteins. in a third step, cyt c, smac/diablo and htra2/omi, which were released into the cytosol, trigger caspase activation. This is necessary to alter the physical association of aif and endog with the im to enable their relocation to the cytosol.
SIGNOR-192092
P06493
Q9H1A4
1
phosphorylation
up-regulates
0.592
Apc activation is thought to depend on apc phosphorylation and cdc20 binding. We have identified 43 phospho_sites on apc of which at least 34 are mitosis specific. Of these, 32 sites are clustered in parts of apc1 and the tetratricopeptide repeat (tpr) subunits cdc27, cdc16, cdc23 and apc7. In vitro, at least 15 of the mitotic phospho_sites can be generated by cyclin_dependent kinase 1 (cdk1), and 3 by polo_like kinase 1 (plk1). Apc phosphorylation by cdk1, but not by plk1, is sufficient for increased cdc20 binding and apc activation
SIGNOR-119705
P08047
Q9UKX5
1
null
up-regulates quantity by expression
0.2
We speculate that the "mesenchymal signature" of alpha11 integrin gene expression is controlled by the activity of Sp1/Sp3, fibroblast-specific combinations of Ets family members and yet unidentified enhancer-binding transcription factors.
SIGNOR-253350
Q9NP70
Q8IXL6
0
phosphorylation
up-regulates activity
0.664
Disruption of Fam20C completely eliminated AMBN phosphorylation, suggesting that Fam20C is the kinase that phosphorylates enamel matrix proteins in vivo (XREF_FIG).
SIGNOR-280010
Q9UHV7
Q969H0
0
ubiquitination
down-regulates quantity by destabilization
0.371
The SCF-Fbw7 ubiquitin ligase degrades MED13 and MED13L and regulates CDK8 module association with Mediator. We show that Fbw7, a tumor suppressor and ubiquitin ligase, binds to CDK8-Mediator and targets MED13/13L for degradation. MED13/13L physically link the CDK8 module to Mediator, and Fbw7 loss increases CDK8 module-Mediator association.
SIGNOR-266690
P06239
P06127
1
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
P60953
O94989
0
guanine nucleotide exchange factor
up-regulates activity
0.556
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-260541
Q16512
P10636
1
phosphorylation
down-regulates
0.329
Phosphorylation of tau is regulated by pknthere is a pkn-specific phosphorylation site, ser-320, in mbdsthus pkn serves as a regulator of microtubules by specific phosphorylation of tau, which leads to disruption of tubulin assembly.
SIGNOR-84958