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Q13464
Q2V2M9
1
phosphorylation
up-regulates activity
0.275
In addition we were able to throw light on the mechanism of activation of FHOD3 by ROCK1 and could demonstrate the effects of constitutively active FHOD3 on actin filament synthesis in cardiomyocytes.|ROCK1 can directly phosphorylate FHOD3 and FHOD3 seems to be the downstream mediator of the exaggerated actin filament formation phenotype that is induced in cardiomyocytes upon the overexpression of constitutively active ROCK1.
SIGNOR-278903
Q13131
Q9NR19
1
phosphorylation
up-regulates activity
0.275
This translocation is mediated by AMP-activated protein kinase (AMPK)-dependent ACSS2 Ser659 phosphorylation and subsequent exposure of the nuclear localization signal of ACSS2 to KPNA1/importin α5 for binding. In the nucleus, ACSS2 forms a complex with TFEB (transcription factor EB) and utilizes the acetate generated from histone deacetylation to locally produce acetyl-CoA for histone acetylation in the promoter regions of TFEB target genes.
SIGNOR-271822
O15550
P31268
1
transcriptional regulation
up-regulates quantity by expression
0.275
Evidence for direct involvement of UTX in regulation of HOX gene activity was demonstrated through UTX knockdown experiments in HEK293T cells in which loss of UTX induced transcriptional repression of HOXA and HOXC clusters.
SIGNOR-260024
P0DP23
Q12756
1
binding
up-regulates activity
0.275
To better understand how KIF1A-driven dense core vesicle (DCV) transport is regulated, we identified the KIF1A interactome and focused on three binding partners, the calcium binding protein calmodulin (CaM) and two synaptic scaffolding proteins: liprin-α and TANC2. We showed that calcium, acting via CaM, enhances KIF1A binding to DCVs and increases vesicle motility. We show that Ca2+/CaM-dependent modulation on KIF1A allows for binding to vesicular cargo. Our results indicate that at low calcium concentrations, the tail domain of KIF1A does not bind to vesicular cargo, whereas at high calcium concentrations, CaM binds KIF1A, allowing for subsequent DCV motility.
SIGNOR-266888
P18846
P18146
1
transcriptional regulation
up-regulates quantity by expression
0.275
Phosphorylated CREB and ATF1 then bind to the CRE of the egr-1 promoter and cause a stress-dependent transcriptional activation of this gene.
SIGNOR-271686
Q9Y6E0
P61006
1
phosphorylation
up-regulates activity
0.275
In a screen for Rab8A kinases we identify TAK1 and MST3 kinases that can efficiently phosphorylate the Switch II residue Threonine72 (Thr72) in a similar manner as LRRK2 in vitro. |Overall our data suggests that the phosphorylation of Rab8A at Ser111 may influence Switch II-binding by regulators, thus disrupting interactions with its cognate GEF and moderately impairs its interaction with GAPs.|The antagonistic interplay between Ser111 phosphorylation and Thr72 phosphorylation is genetically concordant with how respective mutations in PINK1 and LRRK2 cause Parkinson’s disease
SIGNOR-260265
P10589
P22888
1
transcriptional regulation
down-regulates quantity by repression
0.275
Functional analysis showed that EAR2 and EAR3/COUP-TFI repressed the hLHR promoter activity, whereas TR4 activated hLHR gene transcription.
SIGNOR-266218
P29275
O95837
1
binding
up-regulates activity
0.275
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257414
Q9NYY3
O15350
1
phosphorylation
down-regulates activity
0.275
PLK2 inhibits TAp73 translocation to the nucleus.|PLK2 phosphorylated TAp73 at residue Ser48 within the TA domain; phosphorylation of TAp73 was abolished by mutating this residue.
SIGNOR-278218
Q92585
P35222
1
binding
up-regulates
0.275
Unexpectedly, however, emerging evidence implicate maml proteins as exciting key transcriptional co-activators in other signal transduction pathways including: muscle differentiation and myopathies (mef2c), tumor suppressor pathway (p53) and colon carcinoma survival (beta-catenin).
SIGNOR-157843
P05771
Q01844
1
phosphorylation
down-regulates activity
0.275
Here we report thatews, a nuclearrna-bindingprooncoprotein, contains an iq domain, is phosphorylated byproteinkinase c, and interacts with calmodulin. Interestingly, pkc phosphorylation of ews inhibits its binding to rna homopolymers, and conversely,rna binding to ews interferes with pkc phosphorylation./ these data indicate that ews contains an iq domain with ser266 acting as the primary site for pkc phosphorylation.
SIGNOR-52854
P27361
P49418
1
phosphorylation
down-regulates activity
0.274
Thus, we propose that mapk phosphorylation of amphiphysin1 controls ngf receptor/trka-mediated endocytosis by terminating the amphiphysin1-ap-2 interaction.Our results indicate that phosphorylation of amphiphysin 1 at ser-285 and/or ser-293 affects the function of amphiphysin1.Mapk phosphorylation of ser-285 and ser-293 could modulate the interaction between prd and ap-2, resulting in the dissociation of amphiphysin1 from ap-2.
SIGNOR-126867
P19544
Q7RTT9
1
transcriptional regulation
up-regulates quantity by expression
0.274
ENT4 is transcriptionally activated by both isoforms of EWS/WT1 as evidenced by promoter-reporter and chromatin immunoprecipitation (ChIP) analyses.
SIGNOR-268985
O15197
Q9ULV8
1
binding
up-regulates activity
0.274
We suggest that although mammalian EphB6 is kinase-negative, it has retained the allosteric regulatory mechanisms involving the juxtamembrane and the SAM domain linker that are used to regulate the kinase activity of kinase-active Eph receptors. he inability to recruit c-Cbl by EphB6 meant that heightened levels of EphA2 remained active in the cell because they had evaded c-Cbl-mediated degradation. The authors suggest that mutation of residues 901–926 within EphB6 reduces the flexibility of the SAM domain such that c-Cbl cannot be recruited.
SIGNOR-273852
Q9UL54
Q13188
1
phosphorylation
up-regulates
0.274
In addition, the thousand-and-one (tao) amino acids kinase or taok13 has been shown to directly phosphorylate and activate hpo or mst1/2.
SIGNOR-201327
Q8TDX7
Q9HC35
1
phosphorylation
up-regulates activity
0.274
The mitotic kinases NEK6 and NEK7 phosphorylated the EML4 N-terminal domain at Ser144 and Ser146 in vitro, and depletion of these kinases in cells led to increased EML4 binding to microtubules in mitosis. An S144A-S146A double mutant not only bound inappropriately to mitotic microtubules but also increased their stability and interfered with chromosome congression. In addition, constitutive activation of NEK6 or NEK7 reduced the association of EML4 with interphase microtubules. Together, these data support a model in which NEK6- and NEK7-dependent phosphorylation promotes the dissociation of EML4 from microtubules in mitosis in a manner that is required for efficient chromosome congression.
SIGNOR-273884
P35579
P35222
1
transcriptional regulation
up-regulates quantity by expression
0.274
 Nuclear MYH9 bound to the CTNNB1 promoter through its DNA-binding domain, and interacted with myosin light chain 9, β-actin and RNA polymerase II to promote CTNNB1 transcription, which conferred resistance to anoikis in GC cells in vitro and in vivo.
SIGNOR-278896
P22694
Q14896
1
phosphorylation
up-regulates
0.274
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-163772
P32239
P63096
1
binding
up-regulates activity
0.274
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257037
P30989
P09471
1
binding
up-regulates activity
0.274
Altogether, these results reveal for the first time the ability of hNTS1 to directly activate the Gαq-, Gαi1-, GαoA-, and Gα13-mediated signaling pathways
SIGNOR-278061
P00441
Q9NZJ5
1
binding
up-regulates activity
0.274
SOD1mut-induced ER stress |we first examined whether SOD1mut induces ER stress in NSC34 motor neurons, as assessed by band-shift analyses of the ER transmembrane kinase receptors IRE1 and PERK. Adenovirus (Ad)-mediated expression of ALS-linked SOD1mut (SOD1G93A) was detectable within 48 h of infection (Supplemental Fig. S1A). SOD1mut (SOD1A4V, SOD1G85R, and SOD1G93A) but not wild-type SOD1 (SOD1wt) activated IRE1 and PERK
SIGNOR-262787
P06493
Q16665
1
phosphorylation
up-regulates activity
0.274
In vitro kinase assays reveal that CDK1 directly phosphorylates HIF-1\u03b1 at a previously unidentified regulatory site, Ser668.|Overexpression of CDK1 and/or cyclin B1 is sufficient to stabilize HIF-1alpha under normoxic conditions, whereas inhibition of CDK1 enhances the proteasomal degradation of HIF-1alpha, reducing its half-life and steady-state levels.
SIGNOR-279599
Q13976
P04792
1
phosphorylation
down-regulates
0.274
Purified pkg isoforms ia, ib, and ii all caused incorporation of phosphate in recombinant hsp27 at ser-78, ser-82, and thr-143, but not ser-15.These Studies indicate that hsp27 is a genuine substrate for pkg and that pkg may mediate inhibition of platelet aggregation through phosphorylation of hsp27 and subsequent prevent of actin polymerization
SIGNOR-186784
P04049
O14974
1
phosphorylation
down-regulates activity
0.274
In hESC, Raf-1 directly phosphorylates and inactivates MYPT1, and this process requires kinase active Raf-1 protein.
SIGNOR-278979
P30968
P38405
1
binding
up-regulates activity
0.274
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-256935
P42684
P17676
1
phosphorylation
up-regulates
0.274
The y79 amino acid residue of c/ebpbeta was phosphorylated by c-abl or arg. The phosphorylation of c/ebpbeta resulted in an increased c/ebpbeta stability and a potentiation of c/ebpbeta transcription activation activity in cells
SIGNOR-186427
P10244
P10909
1
transcriptional regulation
up-regulates quantity by expression
0.274
Here we show that the human ApoJ/Clusterin gene contains a Myb binding site in its 5' flanking region, which interacts with bacterially synthesized B-MYB protein and mediates B-MYB-dependent transactivation of the ApoJ/Clusterin promoter in transient transfection assays. Endogenous ApoJ/Clusterin expression is induced in mammalian cell lines following transient transfection of a B-MYB cDNA.
SIGNOR-269800
P14653
P32243
1
transcriptional regulation
up-regulates quantity by expression
0.274
Transactivation of the mouse OTX2 Luc constructs by the human HOXB1, HOXB2, and HOXB3 proteins. | Likewise, the construct pOTX2LucΔ−710 showed an 8-, 12-, and 6-fold increase in transcriptional activity if co-transfected with pSG-HOXB1, -HOXB2, and -HOXB3, respectively
SIGNOR-261633
Q05397
Q9H9S0
1
phosphorylation
up-regulates activity
0.274
 In addition, FAK directly phosphorylates Nanog in a dose-dependent manner by in vitro kinase assay and in cancer cells in vivo. The site-directed mutagenesis of Nanog tyrosines, Y35F and Y174F, blocked phosphorylation and binding by FAK.
SIGNOR-276410
P35790
Q00987
1
phosphorylation
down-regulates quantity by destabilization
0.274
The data presented here provides evidence for a molecular mechanism by which CKI-dependent phosphorylation of Mdm2 at multiple sites triggers SCF \u03b2-TRCP -mediated Mdm2 destruction ( xref ).
SIGNOR-279606
P12931
O14976
1
phosphorylation
up-regulates activity
0.274
GAK is phosphorylated by c-Src and translocated from the centrosome to chromatin at the end of telophase. Cyclin G-associated kinase (GAK) harbors a consensus phosphorylation motif (Y412) for c-Src; however, its physiological significance remains elusive. Here, we show that GAK is phosphorylated by c-Src not only at Y412 but also at Y1149.
SIGNOR-263197
Q96RU7
Q13085
1
binding
down-regulates quantity by destabilization
0.274
TRB3 appears to inhibit ACC activity by functioning as an adaptor for COP1.  Taken together, these results suggest that TRB3 may promote loss of fat by mediating the COP1-dependent ubiquitination and inactivation of ACC. Taking these results together, we propose that TRB3 may protect against diet-induced obesity by stimulating fatty acid oxidation in adipose during fasting through the COP1-mediated ubiquitination and degradation of ACC (Fig. 4D).
SIGNOR-271600
P49715
P28845
1
transcriptional regulation
up-regulates quantity by expression
0.274
Cotransfection with human CCAAT/enhancer binding protein-alpha (C/EBPalpha) and C/EBPbeta-LAP expression vectors activated the HSD11B1 promoter with the strongest effect within the same region.
SIGNOR-268971
Q9BY84
P42345
1
dephosphorylation
down-regulates activity
0.274
MKP7 represses mTOR function.|These results suggest that MKP7 could directly dephosphorylate pmTOR and pPRAS40 and forming complexes with these two proteins ( xref ).
SIGNOR-277067
P28702
P10589
1
binding
up-regulates
0.274
Arp-1/rxr, coup-tfi/rxr, and arp-1/coup-tfi heterodimers bound the fp330-3' site
SIGNOR-79449
Q8IUH4
Q01726
1
palmitoylation
up-regulates activity
0.274
Collectively these results suggest that ZDHHC13 phosphorylation by ATR following UVB irradiation promotes its interaction with MC1R to stimulate MC1R palmitoylation.Activating MC1R palmitoylation rescues the defect of MC1R RHC variants
SIGNOR-273518
P53671
P60484
1
phosphorylation
down-regulates activity
0.274
LIMK2 inhibits PTEN phosphatase activity in vitro and in cells.|PTEN phosphorylation and downregulation by LIMK2 promotes tumorigenesis and EMT in vivo.
SIGNOR-278363
Q00535
P04626
1
phosphorylation
up-regulates activity
0.274
Since Tyr-654 is the ERBB2 phosphorylation site on beta-catenin, this result is consistent with our hypothesis that CDK5 activates ERBB2 , which in turn phosphorylates beta-catenin on Tyr-654, leading to a shift of beta-catenin away from the adherens junction and into the nucleus where it can serve as a transcriptional co-activator.|Taken together with the results of our kinase analysis, these observations suggest that CDK5 phosphorylation of both ERBB2 and ERBB3 and AR could drive a feedback loop, in which ERBB2 and ERBB3 promotes beta-catenin transcriptional activity that then contributes to higher expression of ERBB3.
SIGNOR-279155
P04626
P06493
1
phosphorylation
down-regulates
0.274
Phosphorylation on tyrosine-15 of p34(cdc2) by erbb2 inhibits p34(cdc2) activation and is involved in resistance to taxol-induced apoptosis
SIGNOR-88671
Q92995
Q9H1Y0
1
deubiquitination
up-regulates quantity by stabilization
0.274
Here, we identified USP13 as an essential deubiquitinase that stabilizes ATG5 in a process that depends on the PAK1 serine/threonine-protein kinase and which enhances autophagy and promotes IM resistance in GIST cells.
SIGNOR-275838
Q13315
Q16204
1
phosphorylation
up-regulates
0.274
Phosphorylation of ccdc6 at thr434 by atm during dna damage response prevents fbxw7-mediated ccdc6 degradation.
SIGNOR-199276
P56178
P01106
1
transcriptional regulation
up-regulates quantity
0.274
Here we demonstrate by luciferase assay that the MYC promoter is specifically activated by overexpression of DLX5 and that two DLX5 binding sites in the MYC promoter are important for transcriptional activation of MYC. We also show that DLX5 binds to the MYC promoter both in vitro and in vivo and that transfection of a DLX5 expression plasmid promotes the expression of MYC in a dose-dependent manner in mammalian cells
SIGNOR-241914
P12931
P11413
1
phosphorylation
up-regulates activity
0.274
Here, we show that tyrosine kinase c-Src interacts with and phosphorylates G6PD at Tyr 112. This phosphorylation enhances catalytic activity of G6PD by dramatically decreasing its Km value and increasing its Kcat value for substrate glucose-6-phosphate.
SIGNOR-277550
P42345
Q9HBH9
1
phosphorylation
down-regulates activity
0.274
MTOR phosphorylates MNK2a on Ser74. Here, we show that mTORC1, a key regulator of mRNA translation and oncogenesis, directly phosphorylates MNK2 on Ser74. This suppresses MNK2 activity and impairs binding of MNK2 to eIF4G.
SIGNOR-277516
Q16539
P11362
1
phosphorylation
down-regulates
0.274
Fgfr1 translocation requires p38 mapk activation which phosphorylates the c-term tail of fgfr1 on ser777
SIGNOR-166598
O43791
Q49A26
1
binding
down-regulates quantity by destabilization
0.274
Here, we analyzed changes in the ubiquitin landscape induced by prostate cancer-associated mutations of SPOP, an E3 ubiquitin ligase substrate-binding protein. SPOP mutants impaired ubiquitylation of a subset of proteins in a dominant-negative fashion. Of these, DEK and TRIM24 emerged as effector substrates consistently up-regulated by SPOP mutants. Up-regulation of DEK, TRIM24 and NCOA3 is a feature of prostate cancer SPOP mutations.
SIGNOR-272824
Q16665
P29375
1
transcriptional regulation
up-regulates quantity by expression
0.273
To this end, we confirm that KDM3A, KDM4B, KDM4C, KDM5B, KDM5C, and KDM62 are direct targets of HIF-1a while extent the list of known targets to KDM2A, KDM2B, KDM4D, KDM5A, and KDM6A. The results demonstrated that majority of the KDMs were similarly induced (KDM2A, KDM2B, KDM3A, KDM4B, KDM4C, KDM4D, KDM5A, KDM5B, KDM5C, KDM6B, and KDM7A) or repressed (KDM NO66 and KDM1A) by both HIF-1a and HIF-2a.
SIGNOR-271565
Q15831
Q9H093
1
phosphorylation
up-regulates
0.273
A total of 12 human kinases (nuak1, nuak2, brsk1, brsk2, qik, qsk, sik, mark1, mark2, mark3, mark4 and melk) are related to ampk. Here we demonstrate that lkb1 can phosphorylate the t-loop of all the members of this subfamily, apart from melk, increasing their activity >50-fold.
SIGNOR-122717
P12931
P53355
1
phosphorylation
down-regulates activity
0.273
 Here, we show that the leukocyte common antigen-related (LAR) tyrosine phosphatase dephosphorylates DAPK at pY491/492 to stimulate the catalytic, proapoptotic, and antiadhesion/antimigration activities of DAPK. Conversely, Src phosphorylates DAPK at Y491/492, which induces DAPK intra-/intermolecular interaction and inactivation. 
SIGNOR-276074
P53355
Q9UN36
1
phosphorylation
up-regulates activity
0.273
DAPK1 phosphorylates and activates N-myc downstream-regulated gene 2 (NDRG2), resulting in increased tau phosphorylation via a reduction in Pin1 expression ( xref ; xref ).
SIGNOR-279983
P35790
Q14693
1
phosphorylation
down-regulates activity
0.273
Because CKI is a constitutively active kinase and ubiquitously distributed in many cell types, high mTORC1 activity depending on nutritional status may be a physiological cue for Lipin1 degradation mediated by CKI and beta-TRCP.|Thus, we propose that mTORC1 may function as a priming kinase for CKI to promote the phosphorylation of the degron motif in Lipin1.
SIGNOR-280228
P49356
O14807
1
null
up-regulates activity
0.273
Major investments have been made to target Ras through indirect routes. Inhibition of farnesyl transferase to block Ras maturation has failed in large clinical trials.
SIGNOR-242562
P28482
Q86U44
1
phosphorylation
up-regulates quantity by stabilization
0.273
Mass spectrometry analysis showed that ERK phosphorylates METTL3 at three highly conserved residues: S43, S50, and S525 (Figures 2D and 2E). Mutational analysis further confirmed these three sites as main ERK phosphorylation sites (Figure 2F). Phosphorylation of METTL3 increases interaction with USP5, decreasing ubiquitination to stabilize the m6 A methyltransferase complex.
SIGNOR-265948
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
P54821
O60675
1
binding
down-regulates activity
0.273
Hoxd12 and MHox, that interact with v-/c-Maf, using the phage display method. The Hox proteins also could associate with the other Maf protein family members, MafB, MafK, MafF, and MafG, but not with Jun and Fos. The Hox proteins negatively regulated the DNA binding, transactivation and cell-transforming abilities of Maf.
SIGNOR-221932
Q99705
P09471
1
binding
up-regulates activity
0.273
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257235
P12931
O14578
1
phosphorylation
up-regulates activity
0.273
CitK is tyrosine phosphorylated by Src in response to EphB2 signaling.
SIGNOR-279484
Q04721
P15923
1
binding
down-regulates
0.273
In an effort to identify processes that regulate e47, and potentially b-cell development, we found that activated notch1 and notch2 effectively inhibit e47 activity.
SIGNOR-56222
P29320
P10275
1
phosphorylation
up-regulates activity
0.273
These data suggest that Etk may be able to phosphorylate AR at Y534 and Y551/552, and the interaction between the Etk SH2 domain and phosphorylated ARY551/552 may promote their association.|This is supported by our observations that the association between Etk and AR is increased after castration and Etk induces tyrosine phosphorylation of AR, leading an increase in AR stability and transcriptional activity under androgen depleted conditions.
SIGNOR-279371
P29274
P63096
1
binding
up-regulates activity
0.273
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257038
Q13618
Q8N653
1
binding
up-regulates activity
0.273
Leucine zipper-like transcriptional regulator 1 (LZTR1) encodes a member of the BTB-Kelch superfamily, which interacts with the Cullin3 (CUL3)-based E3 ubiquitin ligase complex.
SIGNOR-269070
Q13131
Q8WUI4
1
phosphorylation
down-regulates
0.273
Another recently described set of transcriptional regulators targeted by ampk and its related family members across a range of eukaryotes are the class iia family of histone deacetylases (hdacs).
SIGNOR-176491
Q9BYT3
P28482
1
phosphorylation
up-regulates activity
0.273
In vitro kinase assay results indicated that STK33 can phosphorylate ERK2.|STK33 phosphorylated ERK2 and increased the activity of ERK2 and promote the tumorigenesis of colorectal cancer HCT15 cells.
SIGNOR-279351
P00519
Q05086
1
phosphorylation
down-regulates activity
0.273
Our results suggest that c-Abl protects p53 from HPV-E6-E6AP complex-mediated degradation by phosphorylating E6AP and impairing its E3 ligase activity
SIGNOR-260930
Q12834
Q9UBZ9
1
binding
down-regulates quantity by destabilization
0.273
 Here, we show that human REV1 undergoes proteosomal degradation mediated by the E3 ubiquitin ligase known as anaphase-promoting complex (APC). REV1 associates with APC. Overexpression of APC coactivator CDH1 or CDC20 promotes polyubiquitination and proteosomal degradation of REV1.
SIGNOR-272892
Q9NRW4
P06239
1
dephosphorylation
down-regulates activity
0.273
Because JKAP dephosphorylates and inactivates Lck in T cells [ xref ], we studied whether JKAP downregulation results in Lck activation in SLE T cells.
SIGNOR-277148
P12931
Q15306
1
phosphorylation
up-regulates activity
0.273
Further, we show here that c-Src dramatically stimulates IRF4 phosphorylation and activity and that Y61 and Y124 are two key sites responding to c-Src-mediated activation.|We have further shown that inhibition of c-Src activity reduces p-IRF4(Y121/124) and significantly represses transcription of the IRF4 target B cell integration cluster in Epstein-Barr virus-transformed cells.
SIGNOR-279287
Q02156
P61764
1
phosphorylation
down-regulates quantity
0.273
These results show that nPKC\u03b5 induces Munc18-1 phosphorylation during synaptic activity and reinforce the idea that nPKC\u03b5 downregulates Munc18-1 levels, induced by the nerve stimulation.|These results show that nPKCepsilon induces Munc18-1 phosphorylation during synaptic activity and reinforce the idea that nPKCepsilon downregulates Munc18-1 levels, induced by the nerve stimulation.
SIGNOR-279479
Q9Y566
P12814
1
relocalization
up-regulates activity
0.273
SHANK proteins are ‘master’ scaffolding proteins that tether and organize intermediate scaffolding proteins. They are located at excitatory synapses, where they are crucial for proper synaptic development and function. SAPAP proteins subsequently bind to the PDZ domain of members of the SHANK protein family. SHANK proteins then bind to the actin cytoskeleton and to Homer protein, which in turn interacts with mGluRs. Through these extended links, PSD95, SAPAP, SHANK and Homer proteins form a quaternary complex that brings together mGluR and NMDAR complexes in the PSD (FIG. 3).
SIGNOR-264583
P55283
P63000
1
null
up-regulates activity
0.273
Together, these data suggest that R-cadherin expression inhibits myogenesis and induces myoblast transformation through Rac1 activation. Therefore, the properties of R-cadherin make it an attractive target for therapeutic intervention in RMS.
SIGNOR-253103
P63167
P61586
1
gtpase-activating protein
down-regulates activity
0.273
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-260501
Q13554
Q9UQD0
1
phosphorylation
up-regulates activity
0.272
CaMKII enhances voltage-gated sodium channel Nav1.6 activity and neuronal excitability|mmobilized peptide arrays and nanoflow LC-electrospray ionization/MS of Nav1.6 reveal potential sites of CaMKII phosphorylation, specifically Ser-561 and Ser-641/Thr-642 within the first intracellular loop of the channel.
SIGNOR-275788
Q2Q1W2
P04637
1
ubiquitination
down-regulates quantity
0.272
LIN41 promotes ubiquitination of p53 in response to RA.|Loss of LIN41 elevates p53 steady-state levels and reduces p53 ubiquitination.
SIGNOR-278679
Q9Y6E0
Q05209
1
phosphorylation
down-regulates activity
0.272
In addition, MST3 can phosphorylate PTP-PEST and inhibit the tyrosine phosphatase activity of PTP-PEST.|MST3 directly phosphorylates and inactivates protein tyrosine phosphatase PTP-PEST, which enhances cell migration by enhancing the tyrosine phosphorylation of paxillin Y31 and Y118 [ ].
SIGNOR-279127
Q9UQM7
O95180
1
phosphorylation
down-regulates activity
0.272
 we also discovered that a novel CaMKII-phosphorylated site, S2137, underwent dephosphorylation by calcineurin. 
SIGNOR-277871
P00519
P23759
1
phosphorylation
up-regulates activity
0.272
Furthermore, we show that c-Abl interacts with and phosphorylates Pax7 protein.|Indeed, reporter gene assays indicate that c-Abl inhibition decreases Pax7 dependent activation of the 6xPRS9-luc reporter.
SIGNOR-279773
Q9Y5X5
P09471
1
binding
up-regulates activity
0.272
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-256988
P51608
P41145
1
post transcriptional regulation
up-regulates quantity by expression
0.272
MeCP2 binds to the promoter region of six target genes. ChIP with anti-MeCP2 antibody shows that MeCP2 binds to the promoter regions of activated targets Sst, Oprk1, Gamt, and Gprin1, and repressed targets Mef2c and A2bp1.
SIGNOR-264677
Q13131
P56524
1
phosphorylation
down-regulates
0.272
We show here that in liver, class iia hdacs (hdac4, 5, and 7) are phosphorylated and excluded from the nucleus by ampk family kinases.
SIGNOR-173689
O75676
Q04206
1
phosphorylation
up-regulates
0.272
Rela is phosphorylated at: ser276 by the catalytic subunit of protein kinase a (pkac), msk1 and msk2; at ser311 by the atypical pkczeta; at ser468 by ikkbeta, ikkepsilon and glycogen-synthase kinase-3beta (gsk3beta); at ser529 by ck2; and at ser536 by ikkbeta, ikkalfa, ikkepsilon, nf-kb activating kinase (nak, also known as tank-binding kinase-1 tbk1)) and rsk1 (also known as p90 ribosomal protein s6 kinase (p90s6k) msk 1 and 2 can directly phosphorylate and activate transcription factors such as creb, atf1, the nf-kb isoform p65 and stat 1 and 3.
SIGNOR-151436
Q00536
P10644
1
phosphorylation
up-regulates activity
0.272
PCTK1 regulates spindle orientation in a kinase-dependent manner. Phosphoproteomic analysis together with an RNA interference screen revealed that PCTK1 regulates spindle orientation through phosphorylation of Ser83 on KAP0, a regulatory subunit of protein kinase A (PKA)
SIGNOR-273018
P12931
P63010
1
phosphorylation
down-regulates
0.272
The phosphorylation of beta2-adaptin on tyrosine residue 737 (y737) negatively regulates its interaction with betaarrestin.
SIGNOR-181743
P31751
P15056
1
phosphorylation
down-regulates
0.272
We show that phosphorylation of b-raf by akt occurs at multiple residues within its amino terminal regulatory domain, at both the conserved and unique phosphorylation sites. Akt phosphorylated b-raf on s364 and s428 to inactivate its kinase activity b-raf contains three akt consensus sites, table i. One site, ser364 is conserved with c-raf;however, two sites, ser428 and thr439, are unique to b-raf
SIGNOR-78689
Q05655
P19429
1
phosphorylation
up-regulates activity
0.272
Src phosphorylates pkcdelta at tyr311 and tyr332 leading to enhanced pkcdelta autophosphorylation at thr505 (its activation loop) and pkcdelta-dependent ctni phosphorylation at both ser23/ser24 and thr144.
SIGNOR-178880
P20807
P49841
1
cleavage
up-regulates activity
0.272
Thus, it has been shown that calpain cleaves the inhibitory domain of GSK3 generating two fragments of 40 and 30 kDa. This cleavage enhanced activity of the kinase
SIGNOR-251607
Q13464
P07737
1
phosphorylation
down-regulates
0.272
We previously identified pfn1 as a huntingtin aggregation inhibitor, and others have implicated it as a tumor-suppressor. Rho-associated kinase (rock) directly phosphorylates pfn1 at ser-137 to prevent its binding to polyproline sequences. This negatively regulates its anti-aggregation activity.
SIGNOR-196820
P08581
P46940
1
phosphorylation
up-regulates activity
0.272
IQGAP1 was phosphorylated exclusively on Tyr-1510 under conditions with enhanced MET or c-Src signaling, including in human lung cancer cell lines. This phosphorylation was significantly reduced by chemical inhibitors of MET or c-Src or by siRNA-mediated knockdown of MET.
SIGNOR-277532
P48436
P49716
1
transcriptional regulation
down-regulates quantity by repression
0.272
Sox9 directly binds to the promoter regions of c/ebpbeta and c/ebpdelta to suppress their promoter activity, preventing adipocyte differentiation
SIGNOR-184283
O14965
Q96CX2
1
phosphorylation
up-regulates activity
0.272
 In addition, Aurora A phosphorylated KCTD12 at serine 243, thereby initiating a positive feedback loop necessary for KCTD12 to exert its cancer-promoting effects.
SIGNOR-273544
Q9HAZ1
P00519
1
phosphorylation
down-regulates
0.272
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-181052
Q13237
P09619
1
phosphorylation
down-regulates activity
0.272
Secretory PKG II inhibited PDGF‐BB ‐induced PDGFRβ activation via phosphorylating its Ser254.
SIGNOR-277577
P04049
Q13043
1
binding
down-regulates
0.272
Raf1 binding to mst2 sarah domain interdicts mst2 homodimerization and autoactivation, and recruits protein phosphates 2a thereby promoting mst2 inactivation.
SIGNOR-191843
P00533
Q7Z699
1
phosphorylation
down-regulates activity
0.272
We show that oncogenic EGFR(L858R) signaling leads to the phosphorylation of SPRED1 on serine 105, disrupting the SPRED1-neurofibromin complex. The structural, biochemical, and biological results provide new mechanistic insights about how SPRED1 interacts with neurofibromin and regulates active KRAS levels in normal and pathologic conditions.
SIGNOR-273638
P49841
Q96RR4
1
phosphorylation
down-regulates
0.272
Cdk5 and gsk3 phosphorylate ser-129, ser-133, and ser-137. Mutation of ser-129, ser-133, and ser-137 increases autonomous activity with little change in ca2 /cam-dependent activity.
SIGNOR-198134
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
P41968
P30679
1
binding
up-regulates activity
0.272
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257358
O75365
P05787
1
dephosphorylation
down-regulates activity
0.272
the cytoskeletal intermediate filament keratin 8 (KRT8) was identified as a physiological PRL-3-interacting protein. Indeed, treatment with the PRL-3 inhibitor effectively suppressed the phosphorylation of KRT8 at S73 and S431
SIGNOR-248341
Q00535
Q9ULW0
1
phosphorylation
up-regulates quantity by stabilization
0.272
CDK5-mediated phosphorylation and stabilization of TPX2 promotes hepatocellular tumorigenesis
SIGNOR-265100
O60346
P04049
1
dephosphorylation
down-regulates activity
0.272
PHLPP1 and PHLPP2 dephosphorylate RAF1 to reduce its signaling, increase the invasive and migratory activities of CRC cells, and activate the epithelial-mesenchymal transition. In Apc(Min) mice, loss of PHLPP1 promotes tumor progression.
SIGNOR-237449
P51812
Q9Y4K3
1
phosphorylation
up-regulates activity
0.272
These results demonstrate that TRAF6 K63 ubiquitination might be regulated by an RSK2 mediated phosphorylation dependent mechanism and phosphorylation of TRAF6 at Ser46, 47 and 48 enhances its ubiquitin mediated inflammation signaling.
SIGNOR-278302