GleghornLab/Signor_3class · Datasets at Hugging Face

IdA stringlengths 6 21	IdB stringlengths 6 21	labels int64 0 2	mechanism stringclasses 40 values	effect stringclasses 10 values	score float64 0.1 0.99 ⌀	sentence stringlengths 10 1.63k ⌀	signor_id stringlengths 12 14
Q9UGI0	P31749	0	phosphorylation	up-regulates activity	0.2	Our findings also identify an essential role for activation of Trabid by AKT-mediated phosphorylation at Ser78/Thr117 in negatively regulating Twist1 signaling, which further provides insights into the mechanisms by which Trabid regulates Twist1 ubiquitination.	SIGNOR-273484
Q8NG06	Q13409	1	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
P08069	Q05397	0	phosphorylation	up-regulates quantity	0.535	Taken together, our data suggest that FAK mediates the phosphorylation of IGF-1R and stabilizes the receptor.In this study we demonstrate that FAK, mainly known for its role in integrin signaling pathways, associates with and phosphorylates IGF-1R independently of IGF-1R 's intrinsic tyrosine kinase activity.\|The impact of FAK on the expression levels of IGF-1R could be multilateral	SIGNOR-279565
O60755	Q9BT56	2	binding	up-regulates activity	0.346	Coevolution of the spexin/galanin/kisspeptin family: Spexin activates galanin receptor type II and III.	SIGNOR-268575
Q4KMG0	P19022	2	binding	up-regulates	0.648	We report here that n-cadherin ligation activates p38alpha/beta in myoblasts in a cdo-, bnip-2-, and jlp-dependent manner	SIGNOR-163844
P49810	P29466	0	cleavage	up-regulates activity	0.32	In decreasing order of activity, caspase-8, -3, -1, -6 and -7 proteolysed PS2 at the recognition site D326SYD329.	SIGNOR-261748
P17252	P47712	1	phosphorylation	up-regulates	0.564	Pkcalfa, but not pkcbeta, is the predominant cpkc isoenzyme required for cpla2 protein phosphorylation and maximal induction of cpla2 enzymatic activity.	SIGNOR-149406
P18074	P28715	2	binding	up-regulates quantity by stabilization	0.947	The NER protein XPG was also found to associate with the TFIIH complex by interacting directly with XPD stabilizing the interaction between TFIIH and the CAK-XPD complex	SIGNOR-251974
P30622	P17252	0	phosphorylation	down-regulates	0.2	Furthermore, by using phosphoproteomic analysis, we determined that s309 and s311 of clip-170 are phosphorylated in cells and mapped s311 as a protein kinase a (pka) phosphorylation site.phosphorylation of s311 may be critical for establishing the ?folded Back? Conformation of clip-170clip-170 open and folded back conformations represent active and inactive modes of the protein, respectively	SIGNOR-165857
P10636	P43405	0	phosphorylation	down-regulates	0.466	We established that tyrosine 18 was the primary residue in tau phosphorylated by sykphosphorylation of tau by syk could be involved in neurite outgrowth.	SIGNOR-159648
P68431	Q9C0A6	0	methylation	up-regulates activity	0.2	SETD5 Exhibits Intrinsic Methyltransferase Activity on H3K36. This assay showed that SETD5 has specific histone methyltransferase activity toward K36 but not for other residues such as K4 and K27 (Figure 8B). we revealed that SETD5 is endowed with H3K36 methyltransferase, which is necessary for RNA elongation and processing and, ultimately, correct gene transcription.	SIGNOR-264620
Q9H0M0	Q4VCS5	1	ubiquitination	up-regulates quantity by stabilization	0.275	Here low serum and high LATS1 activity are found to enhance the levels of the 130-kDa isoform of angiomotin (Amot130) through phosphorylation by LATS1/2 at serine 175, which then forms a binding site for 14-3-3. Such phosphorylation, in turn, enables the ubiquitin ligase atrophin-1 interacting protein (AIP)4 to bind, ubiquitinate, and stabilize Amot130	SIGNOR-275847
P30556	P63096	2	binding	up-regulates activity	0.25	Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. \| We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. \| The score associated to this interaction has a LogRAi ≥ -1.0.	SIGNOR-256738
Q00613	Q02750	0	phosphorylation	up-regulates activity	0.287	This study indicates that mTORC1, MEK1, p38 and DYRK2 induce HSF1 activity to a similar level but phosphorylate HSF1 primarily at S326 as well as S363, a known inhibitory site [71,72], S221, also thought to be an inhibitory site [70], or at S241 and S344, which are two novel phosphorylation sites with unknown function.\|While AKT1, mTORC1, MEK1, p38 and DYRK2 can all activate HSF1, the current study indicates that activity of only AKT1 and mTORC1 maintains a strong association with HSF1 activity in tumours (Fig. 4).	SIGNOR-279208
Q9UQF2	Q7Z6J0	2	binding	up-regulates	0.283	We find that posh and jips directly associate with one another to form a multiprotein complex, pjac (posh-jip apoptotic complex), that includes all of the known kinase components of the pathway. Our observations indicate that this complex is required for jnk activation and cell death in response to apoptotic stimuli.	SIGNOR-145393
Q9NRC8	Q9NR30	1	deacetylation	up-regulates activity	0.26	Significantly, the activity of DDX21 is regulated by acetylation. Acetylation by CBP inhibits DDX21 activity, while deacetylation by SIRT7 augments helicase activity and overcomes R-loop-mediated stalling of RNA polymerases.\|acetylation of K18, K137, and K600 impairs the helicase activity of DDX21.	SIGNOR-275903
P78347	O60341	1	relocalization	up-regulates activity	0.405	Moreover, the inhibitory effect of TFII-I on transcription is mediated by its ability to recruit corepressor complexes, including histone deacetylase 3 (HDAC3) (25, 133), histone H3K4-specific demethylase LSD1 (48), and components of the polycomb repressor complex	SIGNOR-268540
Q9NZJ5	P78352	1	phosphorylation	up-regulates activity	0.268	To elucidate the molecular mechanism, we found that activated PERK phosphorylates CAMP response element binding protein (CREB) and PSD95 directly at the S129 and T19 residues, respectively.	SIGNOR-280004
P06241	O60500	1	phosphorylation	up-regulates activity	0.738	Fyn directly bound Nephrin via its SH3 domain, and Fyn directly phosphorylated Nephrin.\|Similar to Fyn deletion, simultaneous deletion of Fyn and Yes reduced Nephrin phosphorylating activity.	SIGNOR-279523
Q9BQS8	Q9H492	2	binding	up-regulates activity	0.561	The preferential binding to LC3A and -B was confirmed in vivo by co-immunoprecipitation experiments of Myc-tagged FYCO1 and GFP fusions of human ATG8 family pro-teins expressed in HEK293 cells (Fig. 2B). GFP-LC3A and GFP-LC3B were efficiently co-precipitated with Myc-FYCO1,whereas GFP-LC3C, GFP-GABARAP, GFP-GABARAPL1 and-L2 were not. The effects we see on late steps of basal autophagy on mutation of the FYCO1 LIR motif correlate with a role of FYCO1 in regulating kinesin-mediated transport of LC3-positive autophagic structures.	SIGNOR-260598
P51114	Q9UKT5	2	binding	down-regulates quantity by destabilization	0.455	Fbxo4-mediated degradation of Fxr1 suppresses tumorigenesis in head and neck squamous cell carcinomaThe Fbxo4 tumour suppressor is a component of an Skp1-Cul1-F-box E3 ligase for which two substrates are known. Here we show purification of SCFFbxo4 complexes results in the identification of fragile X protein family (FMRP, Fxr1 and Fxr2) as binding partners. Biochemical and functional analyses reveal that Fxr1 is a direct substrate of SCFFbxo4.	SIGNOR-272795
P63092	P35368	2	binding	up-regulates activity	0.506	Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. \| We defined positive coupling if any member of the subfamily scored LogRAi ‚â• -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ‚â• -1.0 for defining true couplings. \| The score associated to this interaction has a LogRAi ‚â• -1.0.	SIGNOR-256807
P53350	Q9H8V3	1	phosphorylation	up-regulates activity	0.75	Phosphorylation of Ect2 by Plk1 during anaphase might alleviate this intramolecular inhibition by dissociating the Ect2 amino from the carboxyl terminus.\|Together with the presence of a prominent microtubule array at the midzone, these data suggest that Plk1 is not essential for the formation of the central spindle at anaphase.The specific failure of Ect2 to localize to the midzone raised the interesting possibility that Plk1 might trigger the initiation of cytokinesis by promoting the interaction of Ect2 with centralspindlin and, thereby, Ect2 activation and recruitment to the central spindle.	SIGNOR-279553
P16104	Q86Y13	0	monoubiquitination	up-regulates activity	0.2	2A-HUB catalyzes monoubiquitination of H2A at lysine 119, functioning as a combinatoric component of the repression machinery required for specific gene regulation programs. Thus, 2A-HUB mediates a selective repression of a specific set of chemokine genes in macrophages, critically modulating migratory responses to TLR activation. H2A monoubiquitination acts to prevent FACT recruitment at the transcriptional promoter region, blocking RNA polymerase II release at the early stage of elongation.	SIGNOR-271752
P55072	Q9BQE4	2	binding	up-regulates activity	0.2	VIMP mediates p97 binding to hDerlin-1. these data suggest that Derlin-1 and VIMP form a membrane protein complex that serves as a receptor for p97.	SIGNOR-261371
P06493	Q92934	1	phosphorylation	up-regulates activity	0.2	CDK1-mediated Bcl-2 serine 70 phosphorylation enhances its pro-apoptotic function, whereas CDK1-mediated Bad serine 128 phosphorylation promotes apoptosis.	SIGNOR-267921
Q9UPY3	Q06945	0	transcriptional regulation	up-regulates quantity	0.395	.... showed that Sox4 positively regulates Dicer expression by binding to its promoter sequences and enhancing its activity. We found that knockdown of Dicer enhances the matrigel invasion of melanoma cells by at least twofold. In addition, we revealed that overexpression of exogenous Dicer reverts the enhanced melanoma cell invasion upon Sox4 knockdown	SIGNOR-258987
P12931	Q9UK17	1	phosphorylation	up-regulates activity	0.337	These results indicate that Y108 (for Src-family kinases) and Y136 (for EGFR kinase) are involved in the tyrosine phosphorylation of hKv4.3 channels.	SIGNOR-276393
Q07343	P17612	0	phosphorylation	up-regulates activity	0.605	PKA-mediated phosphorylation of Ser-56 in UCR1 of PDE4B4 leads to activation of this long isoform	SIGNOR-250024
P06493	O95251	1	phosphorylation	up-regulates	0.355	Here, we show that the interaction between plk1 and hbo1 is mitosis-specific and that plk1 phosphorylates hbo1 on ser-57 in vitro and in vivo. During mitosis, cdk1 phosphorylates hbo1 on thr-85/88, creating a docking site for plk1 to be recruited. Significantly, the overexpression of hbo1 mutated at the plk1 phosphorylation site (s57a) leads to cell-cycle arrest in the g1/s phase, inhibition of chromatin loading of the minichromosome maintenance (mcm) complex, and a reduced dna replication rate.	SIGNOR-160747
Q5T447	Q14790	1	polyubiquitination	down-regulates activity	0.336	HECTD3, a new E3 ubiquitin ligase, interacts with caspase-8 death effector domains and ubiquitinates caspase-8 with K63-linked polyubiquitin chains that do not target caspase-8 for degradation but decrease the caspase-8 activation. HECTD3 ubiquitinates caspase-8 with K63-linked polyubiquitin chains at K215.	SIGNOR-272077
Q8TEV9	O75385	2	binding	down-regulates activity	0.424	While focusing on the role of SMCR8 during autophagy initiation, we found that kinase activity and gene expression of ULK1 are increased upon SMCR8 depletion.	SIGNOR-252029
Q8TEK3	Q9Y4D8	1	transcriptional regulation	down-regulates quantity by repression	0.2	Overexpression of DOT1L decreased the expression of HECTD4 and MYCBP2 in LNCaP, C42B, and 22rv1 cells (Supplementary Fig. 5c), suggesting that DOT1L plays a role in repressing these targets either directly or indirectly.	SIGNOR-267150
Q96JM3	Q9UI95	2	binding	up-regulates activity	0.497	Here, we report a novel regulator for accurate chromosome segregation, chromosome alignment-maintaining phosphoprotein (CAMP). We identified CAMP as a MAD2L2-interacting protein. Spindle localization of MAD2L2 was abrogated by CAMP depletion (Supplementary Figure S2A)	SIGNOR-264904
P40763	P23470	0	dephosphorylation	up-regulates activity	0.259	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-254729
P48551	Q00978	2	binding	up-regulates activity	0.727	By binding to IFNalphaR2 within the region where two adjacent proline boxes bear phospho-Ser364 and phospho-Ser384, CBP acetylates IFNalphaR2 on Lys399, which in turn serves as the docking site for interferon regulatory factor 9 (IRF9)RF9 interacts with the acetyl-Lys399 motif by means of its IRF homology2 (IH2) domain, leading to formation of the ISGF3 complex that includes IRF9, STAT1, and STAT2.	SIGNOR-217779
P35222	P04629	0	phosphorylation	up-regulates activity	0.415	EGFR and TRKA effect on WNT3a mediated Topflash induction was abolished by U0126 or expression of dominant negative LRP6-5A mutant (XREF_FIG), demonstrating that both EGFR and TRKA signal via ERK and LRP6 pathway to upregulate WNT and beta-catenin signaling.\|FGFR2, FGFR3, EGFR and TRKA Phosphorylate \u03b2-catenin at Tyr142.	SIGNOR-279240
Q9UNE7	P17542	1	ubiquitination	down-regulates quantity by destabilization	0.356	Ubiquitination and degradation of Tal1/SCL are induced by notch signaling and depend on Skp2 and CHIP. CHIP promoted Tal1 degradation with both chaperone binding and ubiquitin ligase activities, which are mediated by its TPR domain and U box, respectively.	SIGNOR-271393
P18564	Q9Y490	2	binding	up-regulates activity	0.577	Over the past 10 years, the binding of talin to the cytoplasmic tail of integrin-β subunits has been established to have a key role in integrin activation. Binding of the phosphotyrosinebinding (PTB)-domain-like subdomain of the protein 4.1, ezrin, radixin, moesin (FERM) domain of talin to the conserved WxxxNP(I/L)Y motif of the β-integrin tail permits additional weaker interactions between talin and the membrane-proximal region of the tail that trigger integrin activation, probably through the disruption of inhibitory interactions between α- and β-subunit cytoplasmic tails.	SIGNOR-257631
Q15262	P40763	1	dephosphorylation	down-regulates activity	0.374	In this study, we investigated whether receptor-type tyrosine protein phosphatase kappa (PTPRK), the only protein tyrosine phosphatase at 6q that contains a STAT3 specifying motif, negatively regulates STAT3 activation in NKTCL.\|Phosphatase substrate-trapping mutant assays demonstrated the binding of PTPRK to STAT3, and phosphatase assays showed that PTPRK directly dephosphorylated phospho-STAT3(Tyr705).	SIGNOR-277060
Q9UKI8	Q96PY6	1	phosphorylation	up-regulates activity	0.29	TLK1 phosphorylated NEK1 at T141, which lies in the kinase domain, and caused an increase in its activity.	SIGNOR-275840
P18031	P49759	0	phosphorylation	up-regulates activity	0.347	The CLK family kinases, CLK1 and CLK2, phosphorylate and activate the tyrosine phosphatase, PTP-1B. \| although CLK1 and CLK2 directly phosphorylate PTP-1B on both Ser50 and Ser242/Ser243, the preferred CLK phosphorylation site is Ser50, as it is preferentially phosphorylated at an approximate ratio of 9:1 over the Ser242/Ser243 site.	SIGNOR-250773
P00533	P15311	1	phosphorylation	up-regulates	0.529	Ezrin was initially identified as a substrate for tyrosine phosphorylation by egfr (bretscher, 1989) and phosphorylation of residues y145 and y353 were detected to high stoichiometry after egf treatment . Phosphorylation of ezrin at y353 has been delineated to signal survival during epithelial cell differentiation via the phosphatidylinositol 3-kinase (pi3k)/akt pathway.	SIGNOR-133215
P00519	Q14247	1	phosphorylation	up-regulates activity	0.424	Because phosphorylation by c-Abl augments nmMLCK-cortactin interaction to a greater degree than does pp60src phosphorylation, it is likely that phosphorylation sites on nmMLCK unique to c-Abl (i.e., other than Y464 and Y846) are responsible for this enhanced protein-protein interaction.\|Moreover, our data indicate that cortactin is itself rapidly phosphorylated on Y486 by c-Abl in EC after S1P (Figure 9).	SIGNOR-278504
P63000	Q9Y2X7	2	binding	up-regulates activity	0.656	Activated RAC1 interacts with GIT1, a GAP protein of ARF6, and causes the inactivation of ARF6 [78]. As ARF6 plays a role in the promotion of the recycling of macropinosomes to the plasma membrane [78], the inactivation of ARF6 by RAC1 reduces the recycling of macropinosomes.	SIGNOR-277783
P17612	O60240	1	phosphorylation	down-regulates activity	0.504	PKA increased lipolysis in cells expressing Peri A because it abrogated the inhibitory actions of Peri A on lipolysis.‚ amino-terminal PKA sites (Ser-81, Ser-222, and Ser-276)	SIGNOR-250028
O14994	P06493	0	phosphorylation	up-regulates	0.2	A rare, missense polymorphism, s470n, was identified in the synapsin iii gene and appeared more frequently in individuals with schizophrenia than in controls. Ser470, was determined to be a substrate for mitogen-activated protein kinase, a downstream effector of neurotrophin action.	SIGNOR-121398
Q9Y4C1	Q6NXT2	1	demethylation	up-regulates activity	0.2	Using a biochemical assay coupled with chromatography, we have purified a JmjC domain-containing protein, JHDM2A, which specifically demethylates mono- and dimethyl-H3K9.	SIGNOR-276847
P53779	O14733	0	phosphorylation	up-regulates	0.582	Two mapkks, sek1 and mkk7, synergistically activate jnk. Sek1 prefers the tyr-185 residue, and mkk7 prefers the thr-183 residue (17, 19).	SIGNOR-137609
P28482	P49418	1	phosphorylation	down-regulates activity	0.265	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-126859
Q9HCU9	O60341	2	binding	up-regulates activity	0.257	Our results have showed that BRMS1 together with LSD1 are required for inhibition of breast cancer cell migration and invasion. Collectively, these findings demonstrate that BRMS1 executes transcriptional suppression of breast cancer metastasis by associating with the LSD1 and thus can be targeted for breast cancer therapy.	SIGNOR-266409
P13500	P41597	2	binding	up-regulates activity	0.786	The investigators showed that myoblasts constitutively express receptors for CCL2 (CCR2), CCL3 (CCR1 and CCR5), and CCL4 (CCR5), and that stimulation with either CCL2 or CCL4 was sufficient to promote myoblast proliferation.	SIGNOR-255113
Q02447	P62136	0	dephosphorylation	down-regulates activity	0.2	Transcription factors Sp1 and Sp3 activate alpha-ENaC2 transcription through a GC-rich element (Sp1-binding site) in the promoter. Sp1 and Sp3 are essential for alpha-ENaC2 transcription in lung epithelial cells and that dephosphorylation of the Sp transcription factors by PP1 suppresses alpha-ENaC2 expression.	SIGNOR-251953
Q9HCE7	Q9UK99	2	binding	down-regulates quantity by destabilization	0.391	F-box protein Fbxo3 targets Smurf1 ubiquitin ligase for ubiquitination and degradation. Here we show that another F-box protein Fbxo3, belonging to the FBXO type protein family, also interacts with and targets Smurf1 for poly-ubiquitination and proteasomal degradation. The SCF complex is composed of F-box protein, Skp1, Cullin1 (Cul1) and ROC1. Fbxo3, whose substrates are few, forms SCF Fbxo3 ubiquitin ligase and regulates the degradations of Fbxl2, p62, HIPK2 and p300 through the ubiquitin-proteasome pathway.	SIGNOR-272441
P29475	P78352	2	binding	up-regulates activity	0.736	Neuronal NOS, a Ca2+-activated form of NOS, can bind to PSD-95 through a class III PDZ domain interaction in which its own amino-terminal PDZ domain binds to a PDZ domain of PSD-95. PSD-95 may concentrate nNOS near the NMDA receptor at postsynaptic sites in these neurons.	SIGNOR-264227
Q96PU5	Q9Y5Y9	1	ubiquitination	down-regulates quantity by destabilization	0.32	The control of Nav density at the cell membrane is crucial to ensuring normal neuronal excitability. Navs are subject to posttranslational modifications that may influence their cell membrane availability. Ubiquitylation is a key process that orchestrates the internalization and subsequent degradation or recycling of Navs. This is accomplished by ubiquitin protein ligases, such as NEDD4-2 (neuronal precursor cell expressed developmentally downregulated-4 type 2).	SIGNOR-253463
P49802	P17252	0	phosphorylation	down-regulates activity	0.364	TNF-α rapidly increases the concentration of functionally active RGS7 protein through two mechanisms. TNF-induced dephosphorylation of serine 434 liberates RGS7 from 14-3-3 binding and inhibition. , PKC α catalyzes the incorporation of phosphate into a truncation of RGS7 fused to maltose-binding protein (MBP.RGS7315–469).	SIGNOR-263165
Q96MS0	O94813	2	binding	up-regulates activity	0.626	This observation suggests that Slit2 may require the Robo2 and Robo3 receptors in this process . Slit2 causes the miRNA miR-182 to release cofilin1 mRNA, potentiating cofilin1 local translation and resulting in growth cone collapse. The use of morpholinos or RNAi to knockdown robo2 and robo3 in X. laevis RGCs, would be useful to further confirm that Robo2 and Robo3 are the receptors involved in Slit2-dependent cofilin1 translation.	SIGNOR-268381
O43639	P09619	2	binding	up-regulates	0.615	The sh2 domains of grb2, nck, and grb4 all precipitated activated pdgf receptor with similar efficiency.	SIGNOR-64740
P52565	P17612	0	phosphorylation	down-regulates	0.387	The results indicate that phosphorylation of gdi_ at ser174 by pka suppresses rhoa activity, providing a potential protective signaling mechanism for inflammatory injury.	SIGNOR-180576
P00746	P00751	1	cleavage	up-regulates activity	0.804	The resulting proconvertase C3bB is subsequently cleaved by factor D (FD), generating the AP C3 convertase C3bBb	SIGNOR-263488
P19784	P08575	1	phosphorylation	up-regulates activity	0.434	Mutational analysis of CK2 consensus sites showed that the target for CK2 was in an acidic insert of 19 amino acids in the D2 domain, and Ser to Ala mutations at amino acids 965, 968, 969, and 973 abrogated CK2 phosphorylation of CD45. CK2 phosphorylation increased CD45 activity 3-fold toward phosphorylated myelin basic protein, and this increase was reversible by PP2A treatment.	SIGNOR-251031
Q9H4B4	Q16665	1	phosphorylation	down-regulates	0.348	Polo-like kinase 3 functions as a tumor suppressor and is a negative regulator of hypoxia-inducible factor-1 alpha under hypoxic conditionsplk3 can potentially inhibit hif-1_ by physical interaction and direct phosphorylation	SIGNOR-178743
P35070	P00533	2	binding	up-regulates	0.747	Betacellulin is synthesized primarily as a transmembrane precursor, which is then processed to mature molecule by proteolytic events;ten growth factors and their erbb specificities are depicted: egf, amphiregulin((ar), and tgfalfa bind erbb-1, betacellulin, heparin binding egf-like growth factor, and epiregulin bing both erbb-1 and erbb-4.	SIGNOR-121953
P54646	P06213	1	phosphorylation	up-regulates	0.372	Ampk phosphorylates and activates theinsulinreceptor, providing a direct link between ampk and theinsulin pathway.	SIGNOR-195324
O60258	P21802	2	binding	up-regulates	0.687	Fgfs bind and activate high-affinity receptor tyrosine kinases. The cloning of fgf receptors (fgfrs) has identified four distinct genes	SIGNOR-42365
P30304	P06493	2	dephosphorylation	up-regulates activity	0.842	Phosphatase activity of Cdc25A is critical for its activating capacity (data not shown). In this context, it should also be mentioned that Cdc25A is able to activate cyclin B-Cdk1 in vitro	SIGNOR-248480
Q9NRJ5	O43865	2	binding	down-regulates activity	0.2	Inositol 1,4,5-triphosphate receptor-binding protein released with inositol 1,4,5-triphosphate (IRBIT) associates with components of the mRNA 3' processing machinery in a phosphorylation-dependent manner and inhibits polyadenylation\|In addition to CPSF, IRBIT interacted in vitro with poly(A) polymerase (PAP), which is the enzyme recruited by CPSF to elongate the poly(A) tail, and inhibited PAP activity in a phosphorylation-dependent manner.	SIGNOR-268331
Q05655	Q09472	1	phosphorylation	down-regulates	0.366	Inhibition of histone acetyltransferase function of p300 by pkcdeltawe found that pkcdelta but not classical pkc, specifically phosphorylates p300 at serine 89 in vitro and in vivo. This phosphorylation causes inhibition of p300 intrinsic hat activity.	SIGNOR-94263
P09471	Q9UNW8	2	binding	up-regulates activity	0.2	Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. \| We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. \| The score associated to this interaction has a LogRAi ≥ -1.0.	SIGNOR-257187
Q03113	Q9UBY5	2	binding	up-regulates	0.467	Serum-borne lysophosphatidic acid (lpa) and sphingosine 1-phosphophate (s1p) act through g12/13-coupled receptors to inhibit the hippo pathway kinases lats1/2 thereby activating yap and taz transcription co-activators, which are oncoproteins repressed by lats1/2.	SIGNOR-198544
Q9NZI8	P60709	1	post transcriptional regulation	up-regulates quantity	0.34	We found that ZBP1 is necessary for netrin-1 stimulated local translation of β-actin mRNA in axonal growth cones. ZBP1 binds to β-actin mRNA in the soma and transports it to the growth cone on microtubules.	SIGNOR-268160
Q8N122	P53350	0	phosphorylation	up-regulates activity	0.329	Of note, MYC-PLK1 (WT) overexpression strongly enhanced MTOR and RPTOR signals in PLK1 IPs, whereas the LAMP2 signal was strongly decreased (XREF_FIG).\|Thus, we conclude that PLK1 can directly phosphorylate RPTOR in vitro.	SIGNOR-279346
O15519	P31749	0	phosphorylation	down-regulates quantity	0.466	TNFalpha enhanced FLIP(L) serine phosphorylation, which was increased by activated Akt-1. Serine 273, a putative Akt-1 phosphorylation site in FLIP(L), was critical for the activation-induced reduction of FLIP(L). Thus, these observations document a novel mechanism where by TNFalpha facilitates the reduction of FLIP(L) protein, which is dependent on the phosphatidylinositol 3-kinase/Akt signaling.	SIGNOR-252548
Q13362-3	Q13315	0	phosphorylation	up-regulates activity	0.378	In the present study, we demonstrate that ataxia-telangiectasia mutated (ATM) directly phosphorylates and specifically regulates B56γ3, B56γ2 and B56δ, after DNA damage. We further show that phosphorylation of B56γ3 at Ser510 leads to an increase in B56γ3-PP2A complexes, and direction of PP2A phosphatase activity toward the substrate p53, activating its tumor-suppressive functions. we show that Ser510 phosphorylation significantly enhances the ability of B56γ3 to inhibit cell proliferation and anchorage-independent growth.	SIGNOR-276320
P01137	P08253	0	cleavage	up-regulates	0.555	We also demonstrate that mmp-9, as well as its relative, mmp-2, cleave latent transforming growth factor-beta (tgf-beta), which constitutes a novel mechanism of tgf-beta activation	SIGNOR-74384
P23458	P40763	2	binding	up-regulates activity	0.8	The binding of lif to the lifr induces its heterodimerization with gp130. The formation of this complex results in the activation of the receptor-associated janus kinases (jaks), in the phosphorylation of receptor docking sites, and finally in the recruitment of src homology-2 (sh2) domain containing proteins such as stat3 (signal transducer and activator of transcription 3).	SIGNOR-236369
P08754	Q96P68	2	binding	up-regulates activity	0.385	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-257155
P11908	Q9UHD2	0	phosphorylation	up-regulates activity	0.2	Here, we show that ionizing radiation results in TBK1-mediated phosphorylation of phosphoribosyl pyrophosphate synthetase (PRPS)1/2 at T228, thereby enhancing PRPS1/2 catalytic activity and promoting deoxyribonucleotide synthesis.	SIGNOR-277317
Q9Y5G6	Q9Y5I2	2	binding	up-regulates activity	0.2	The clustered protocadherins comprise the largest subfamily of the cadherin superfamily and are predominantly expressed in the nervous system. Pcdh-alpha proteins interact with beta1-integrin to promote cell adhesion. They also form oligomers with Pcdh-gamma proteins at the same membrane sites.	SIGNOR-265709
P51692	P54764	0	phosphorylation	up-regulates activity	0.375	We have shown here that EphA4 can phosphorylate STAT5B, but it is not yet clear whether the nuclear translocation of phosphorylated STAT5B is enhanced by EphA4.	SIGNOR-278934
P68400	O14737	1	phosphorylation	up-regulates	0.2	Programmed cell death 5 (pdcd5), a protein involved in cell death and down-regulated in different forms of human tumors. Pdcd5 is phosphorylated in vitro by both ck2alpha subunit and by the ck2 holoenzyme at a residue, s118, which is found phosphorylated in vivo. Transfection of the non-phosphorylatable mutant (s118a) impairs the pdcd5 acceleration of either doxorubimicin- or uv-induced apoptosis in u2os cells	SIGNOR-187106
Q969H0	O00141	0	phosphorylation	up-regulates	0.291	Here, we report that the serum- and glucocorticoid-inducible protein kinase sgk1 remarkably reduced the protein stability of the active form of notch1 through fbw7activated sgk1 phosphorylated fbw7 at serine 227	SIGNOR-170404
P14921	Q13164	0	phosphorylation	up-regulates	0.42	9-cis retinoid x receptor alpha (rxr alpha) interacted with erk2 but not erk5 in intact cells, whereas ets-1 interacted preferentially with erk5. Increased phosphorylation of rxr alpha and ets-1 was detected in response to 1,25d. Activated erk2 and erk5 specifically phosphorylated rxr alpha and ets-1, respectively.Mutagenesis of ets-1 (t38a) reduced cyp24 promoter activity to levels observed with the dominant-negative mek5(a) and inhibited erk5-directed phosphorylation. Mutated rxr alpha (s260a) inhibited 1,25d-induced cyp24 promoter activity and abolished phosphorylation by activated erk2.	SIGNOR-88666
O14920	O75688	0	dephosphorylation	down-regulates activity	0.404	PPM1A and PPM1B act as IKKbeta phosphatases to terminate TNFalpha-induced IKKbeta-NF-kappaB activation\|Overexpression of PPM1A or PPM1B results in dephosphorylation of IKKbeta at Ser177 and Ser181 and termination of IKKbeta-induced NF-kappaB activation.	SIGNOR-248343
P30518	P38405	2	binding	up-regulates activity	0.269	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-256897
P11413	P53350	0	phosphorylation	up-regulates activity	0.346	We find that Plk1 interacts with and directly phosphorylates glucose-6-phosphate dehydrogenase (G6PD). By activating G6PD through promoting the formation of its active dimer, Plk1 increases PPP flux and directs glucose to the synthesis of macromolecules.\|the kinase domain of Plk1 phosphorylates T406, T466 of G6PD	SIGNOR-267581
Q00987	P32121	2	ubiquitination	down-regulates quantity	0.434	Indeed, the ubiquitination of \u03b2-arrestin2 by Mdm2 H457S was severely reduced in comparison to Mdm2 wt ( xref ).\|Loss of Mdm2 E3 ligase activity causes dominant nuclear localization of beta-arrestin2.	SIGNOR-278760
Q99618	O60729	0	dephosphorylation	up-regulates	0.281	The phosphatase cdc14b translocates from the nucleolus to the nucleoplasm and induces the activation of the ubiquitin ligase apc/ccdh1	SIGNOR-179664
P25098	Q16581	1	phosphorylation	down-regulates activity	0.2	These findings indicated that agonist-induced C3aR phosphorylation by GRK2 promotes C3aR desensitization.	SIGNOR-279044
P09619	P09619	2	phosphorylation	up-regulates activity	0.2	We used two platelet-derived growth factor beta-receptor (beta-PDGFR) mutants to identify events that are required for full engagement (autophosphorylation and activation of the kinase activity) of the beta-PDGFR kinase. The F79/81 receptor (Tyr to Phe substitution at 579 and 581 in the juxtamembrane domain of the receptor) was capable of only very modest ligand-dependent autophosphorylation and also failed to associate with numerous SH2 domain-containing proteins.	SIGNOR-250254
P19174	Q16620	0	phosphorylation	up-regulates activity	0.647	Both Shc and PLCgamma1 are phosphorylated by TrkB, thereby initiating Shc/Ras/MAP kinase and PLCgamma1 signaling respectively.\|We conclude that activation of pY783 PLCgamma1 is due mainly to TrkB activation in these models and that TrkB induced PLCgamma1 signaling promotes limbic epileptogenesis.	SIGNOR-279241
Q8IYU2	P63000	1	ubiquitination	down-regulates quantity by destabilization	0.367	The CNF1 toxin of pathogenic Escherichia coli addresses Rac1 to ubiquitin-proteasome system (UPS). We report the essential role of the tumor suppressor HACE1, a HECT-domain containing E3 ubiquitin-ligase, in the targeting of Rac1 to UPS. HACE1 binds preferentially GTP-bound Rac1 and catalyzes its polyubiquitylation	SIGNOR-255538
O60858	O60858	2	polyubiquitination	down-regulates quantity by destabilization	0.2	In this study, we showed that the N-degron pathway mediates ubiquitin (Ub)-dependent reticulophagy. During this 2-step process, the ER transmembrane E3 ligase TRIM13 undergoes auto-ubiquitination via lysine 63 (K63) linkage chains and acts as a ligand for the autophagic receptor SQSTM1/p62 (sequestosome 1).	SIGNOR-272219
Q9NRY4	Q13464	0	phosphorylation	down-regulates activity	0.414	these results indicate that Rho-kinase can phosphorylate p190A RhoGAP at Ser1150 in COS7 cells. Similarly, the immunoblot analysis, through the use of the anti-p190A RhoGAP-pT1226 and -pS1236 antibodies, revealed that Rho-kinase can phosphorylate p190A RhoGAP at Thr1226 and Ser1236 in COS7 cells	SIGNOR-276177
P0DTC2	P09958	0	cleavage	up-regulates activity	0.2	Here, we report that the cellular protease furin cleaves the spike protein at the S1/S2 site and that cleavage is essential for S-protein-mediated cell-cell fusion and entry into human lung cells.	SIGNOR-262305
Q9H2X6	Q08050	1	phosphorylation	up-regulates activity	0.2	In conclusion, the phosphorylation of FOXM1 by HIPK2 can promote FOXM1 transcription activity and cell proliferation in RCC, thus, indicating a potential mechanism for the treatment of human RCC in the future.	SIGNOR-278944
Q969W9	P49910	0	transcriptional regulation	down-regulates quantity by repression	0.271	ZNF165 drives the unrestrained activation of transforming growth factor β (TGFβ) signalling by directly inactivating the expression of negative feedback pathway regulators, SMURF2, SMAD7 and PMEPA1.	SIGNOR-266094
Q68CJ9	P49841	0	phosphorylation	down-regulates activity	0.549	It is possible that phosphorylation of CREBH by GSK3beta leads to altered CREBH conformation with a resulting decreased affinity toward the COPII coated transport complex.\|Similarly, expression of dominant negative GSK3beta can rescue the decreased CREBH cleavage activity in the Bmal1 knockdown hepatocytes under the circadian clock (XREF_FIG), thus confirming that BMAL1 controls circadian regulated CREBH cleavage and activation through AKT and GSK3beta signaling in hepatocytes.	SIGNOR-279785
Q05655	P51828	1	phosphorylation	up-regulates activity	0.555	Immunoprecipitation data indicated that PKCdelta could bind and directly phosphorylate AC7.	SIGNOR-279258

Q9UGI0

P31749

0

phosphorylation

up-regulates activity

0.2

Our findings also identify an essential role for activation of Trabid by AKT-mediated phosphorylation at Ser78/Thr117 in negatively regulating Twist1 signaling, which further provides insights into the mechanisms by which Trabid regulates Twist1 ubiquitination.

SIGNOR-273484

Q8NG06

Q13409

1

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

P08069

Q05397

0

phosphorylation

up-regulates quantity

0.535

Taken together, our data suggest that FAK mediates the phosphorylation of IGF-1R and stabilizes the receptor.In this study we demonstrate that FAK, mainly known for its role in integrin signaling pathways, associates with and phosphorylates IGF-1R independently of IGF-1R 's intrinsic tyrosine kinase activity.|The impact of FAK on the expression levels of IGF-1R could be multilateral

SIGNOR-279565

O60755

Q9BT56

2

binding

up-regulates activity

0.346

Coevolution of the spexin/galanin/kisspeptin family: Spexin activates galanin receptor type II and III.

SIGNOR-268575

Q4KMG0

P19022

2

binding

up-regulates

0.648

We report here that n-cadherin ligation activates p38alpha/beta in myoblasts in a cdo-, bnip-2-, and jlp-dependent manner

SIGNOR-163844

P49810

P29466

0

cleavage

up-regulates activity

0.32

In decreasing order of activity, caspase-8, -3, -1, -6 and -7 proteolysed PS2 at the recognition site D326SYD329.

SIGNOR-261748

P17252

P47712

1

phosphorylation

up-regulates

0.564

Pkcalfa, but not pkcbeta, is the predominant cpkc isoenzyme required for cpla2 protein phosphorylation and maximal induction of cpla2 enzymatic activity.

SIGNOR-149406

P18074

P28715

2

binding

up-regulates quantity by stabilization

0.947

The NER protein XPG was also found to associate with the TFIIH complex by interacting directly with XPD stabilizing the interaction between TFIIH and the CAK-XPD complex

SIGNOR-251974

P30622

P17252

0

phosphorylation

down-regulates

0.2

Furthermore, by using phosphoproteomic analysis, we determined that s309 and s311 of clip-170 are phosphorylated in cells and mapped s311 as a protein kinase a (pka) phosphorylation site.phosphorylation of s311 may be critical for establishing the ?folded Back? Conformation of clip-170clip-170 open and folded back conformations represent active and inactive modes of the protein, respectively

SIGNOR-165857

P10636

P43405

0

phosphorylation

down-regulates

0.466

We established that tyrosine 18 was the primary residue in tau phosphorylated by sykphosphorylation of tau by syk could be involved in neurite outgrowth.

SIGNOR-159648

P68431

Q9C0A6

0

methylation

up-regulates activity

0.2

SETD5 Exhibits Intrinsic Methyltransferase Activity on H3K36. This assay showed that SETD5 has specific histone methyltransferase activity toward K36 but not for other residues such as K4 and K27 (Figure 8B). we revealed that SETD5 is endowed with H3K36 methyltransferase, which is necessary for RNA elongation and processing and, ultimately, correct gene transcription.

SIGNOR-264620

Q9H0M0

Q4VCS5

1

ubiquitination

up-regulates quantity by stabilization

0.275

Here low serum and high LATS1 activity are found to enhance the levels of the 130-kDa isoform of angiomotin (Amot130) through phosphorylation by LATS1/2 at serine 175, which then forms a binding site for 14-3-3. Such phosphorylation, in turn, enables the ubiquitin ligase atrophin-1 interacting protein (AIP)4 to bind, ubiquitinate, and stabilize Amot130

SIGNOR-275847

P30556

P63096

2

binding

up-regulates activity

0.25

Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.

SIGNOR-256738

Q00613

Q02750

0

phosphorylation

up-regulates activity

0.287

This study indicates that mTORC1, MEK1, p38 and DYRK2 induce HSF1 activity to a similar level but phosphorylate HSF1 primarily at S326 as well as S363, a known inhibitory site [71,72], S221, also thought to be an inhibitory site [70], or at S241 and S344, which are two novel phosphorylation sites with unknown function.|While AKT1, mTORC1, MEK1, p38 and DYRK2 can all activate HSF1, the current study indicates that activity of only AKT1 and mTORC1 maintains a strong association with HSF1 activity in tumours (Fig. 4).

SIGNOR-279208

Q9UQF2

Q7Z6J0

2

binding

up-regulates

0.283

We find that posh and jips directly associate with one another to form a multiprotein complex, pjac (posh-jip apoptotic complex), that includes all of the known kinase components of the pathway. Our observations indicate that this complex is required for jnk activation and cell death in response to apoptotic stimuli.

SIGNOR-145393

Q9NRC8

Q9NR30

1

deacetylation

up-regulates activity

0.26

Significantly, the activity of DDX21 is regulated by acetylation. Acetylation by CBP inhibits DDX21 activity, while deacetylation by SIRT7 augments helicase activity and overcomes R-loop-mediated stalling of RNA polymerases.|acetylation of K18, K137, and K600 impairs the helicase activity of DDX21.

SIGNOR-275903

P78347

O60341

1

relocalization

up-regulates activity

0.405

Moreover, the inhibitory effect of TFII-I on transcription is mediated by its ability to recruit corepressor complexes, including histone deacetylase 3 (HDAC3) (25, 133), histone H3K4-specific demethylase LSD1 (48), and components of the polycomb repressor complex

SIGNOR-268540

Q9NZJ5

P78352

1

phosphorylation

up-regulates activity

0.268

To elucidate the molecular mechanism, we found that activated PERK phosphorylates CAMP response element binding protein (CREB) and PSD95 directly at the S129 and T19 residues, respectively.

SIGNOR-280004

P06241

O60500

1

phosphorylation

up-regulates activity

0.738

Fyn directly bound Nephrin via its SH3 domain, and Fyn directly phosphorylated Nephrin.|Similar to Fyn deletion, simultaneous deletion of Fyn and Yes reduced Nephrin phosphorylating activity.

SIGNOR-279523

Q9BQS8

Q9H492

2

binding

up-regulates activity

0.561

The preferential binding to LC3A and -B was confirmed in vivo by co-immunoprecipitation experiments of Myc-tagged FYCO1 and GFP fusions of human ATG8 family pro-teins expressed in HEK293 cells (Fig. 2B). GFP-LC3A and GFP-LC3B were efficiently co-precipitated with Myc-FYCO1,whereas GFP-LC3C, GFP-GABARAP, GFP-GABARAPL1 and-L2 were not. The effects we see on late steps of basal autophagy on mutation of the FYCO1 LIR motif correlate with a role of FYCO1 in regulating kinesin-mediated transport of LC3-positive autophagic structures.

SIGNOR-260598

P51114

Q9UKT5

2

binding

down-regulates quantity by destabilization

0.455

Fbxo4-mediated degradation of Fxr1 suppresses tumorigenesis in head and neck squamous cell carcinomaThe Fbxo4 tumour suppressor is a component of an Skp1-Cul1-F-box E3 ligase for which two substrates are known. Here we show purification of SCFFbxo4 complexes results in the identification of fragile X protein family (FMRP, Fxr1 and Fxr2) as binding partners. Biochemical and functional analyses reveal that Fxr1 is a direct substrate of SCFFbxo4.

SIGNOR-272795

P63092

P35368

2

binding

up-regulates activity

0.506

Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ‚â• -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ‚â• -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ‚â• -1.0.

SIGNOR-256807

P53350

Q9H8V3

1

phosphorylation

up-regulates activity

0.75

Phosphorylation of Ect2 by Plk1 during anaphase might alleviate this intramolecular inhibition by dissociating the Ect2 amino from the carboxyl terminus.|Together with the presence of a prominent microtubule array at the midzone, these data suggest that Plk1 is not essential for the formation of the central spindle at anaphase.The specific failure of Ect2 to localize to the midzone raised the interesting possibility that Plk1 might trigger the initiation of cytokinesis by promoting the interaction of Ect2 with centralspindlin and, thereby, Ect2 activation and recruitment to the central spindle.

SIGNOR-279553

P16104

Q86Y13

0

monoubiquitination

up-regulates activity

0.2

2A-HUB catalyzes monoubiquitination of H2A at lysine 119, functioning as a combinatoric component of the repression machinery required for specific gene regulation programs. Thus, 2A-HUB mediates a selective repression of a specific set of chemokine genes in macrophages, critically modulating migratory responses to TLR activation. H2A monoubiquitination acts to prevent FACT recruitment at the transcriptional promoter region, blocking RNA polymerase II release at the early stage of elongation.

SIGNOR-271752

P55072

Q9BQE4

2

binding

up-regulates activity

0.2

VIMP mediates p97 binding to hDerlin-1. these data suggest that Derlin-1 and VIMP form a membrane protein complex that serves as a receptor for p97.

SIGNOR-261371

P06493

Q92934

1

phosphorylation

up-regulates activity

0.2

CDK1-mediated Bcl-2 serine 70 phosphorylation enhances its pro-apoptotic function, whereas CDK1-mediated Bad serine 128 phosphorylation promotes apoptosis.

SIGNOR-267921

Q9UPY3

Q06945

0

transcriptional regulation

up-regulates quantity

0.395

.... showed that Sox4 positively regulates Dicer expression by binding to its promoter sequences and enhancing its activity. We found that knockdown of Dicer enhances the matrigel invasion of melanoma cells by at least twofold. In addition, we revealed that overexpression of exogenous Dicer reverts the enhanced melanoma cell invasion upon Sox4 knockdown

SIGNOR-258987

P12931

Q9UK17

1

phosphorylation

up-regulates activity

0.337

These results indicate that Y108 (for Src-family kinases) and Y136 (for EGFR kinase) are involved in the tyrosine phosphorylation of hKv4.3 channels.

SIGNOR-276393

Q07343

P17612

0

phosphorylation

up-regulates activity

0.605

PKA-mediated phosphorylation of Ser-56 in UCR1 of PDE4B4 leads to activation of this long isoform

SIGNOR-250024

P06493

O95251

1

phosphorylation

up-regulates

0.355

Here, we show that the interaction between plk1 and hbo1 is mitosis-specific and that plk1 phosphorylates hbo1 on ser-57 in vitro and in vivo. During mitosis, cdk1 phosphorylates hbo1 on thr-85/88, creating a docking site for plk1 to be recruited. Significantly, the overexpression of hbo1 mutated at the plk1 phosphorylation site (s57a) leads to cell-cycle arrest in the g1/s phase, inhibition of chromatin loading of the minichromosome maintenance (mcm) complex, and a reduced dna replication rate.

SIGNOR-160747

Q5T447

Q14790

1

polyubiquitination

down-regulates activity

0.336

HECTD3, a new E3 ubiquitin ligase, interacts with caspase-8 death effector domains and ubiquitinates caspase-8 with K63-linked polyubiquitin chains that do not target caspase-8 for degradation but decrease the caspase-8 activation. HECTD3 ubiquitinates caspase-8 with K63-linked polyubiquitin chains at K215.

SIGNOR-272077

Q8TEV9

O75385

2

binding

down-regulates activity

0.424

While focusing on the role of SMCR8 during autophagy initiation, we found that kinase activity and gene expression of ULK1 are increased upon SMCR8 depletion.

SIGNOR-252029

Q8TEK3

Q9Y4D8

1

transcriptional regulation

down-regulates quantity by repression

0.2

Overexpression of DOT1L decreased the expression of HECTD4 and MYCBP2 in LNCaP, C42B, and 22rv1 cells (Supplementary Fig. 5c), suggesting that DOT1L plays a role in repressing these targets either directly or indirectly.

SIGNOR-267150

Q96JM3

Q9UI95

2

binding

up-regulates activity

0.497

Here, we report a novel regulator for accurate chromosome segregation, chromosome alignment-maintaining phosphoprotein (CAMP). We identified CAMP as a MAD2L2-interacting protein. Spindle localization of MAD2L2 was abrogated by CAMP depletion (Supplementary Figure S2A)

SIGNOR-264904

P40763

P23470

0

dephosphorylation

up-regulates activity

0.259

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-254729

P48551

Q00978

2

binding

up-regulates activity

0.727

By binding to IFNalphaR2 within the region where two adjacent proline boxes bear phospho-Ser364 and phospho-Ser384, CBP acetylates IFNalphaR2 on Lys399, which in turn serves as the docking site for interferon regulatory factor 9 (IRF9)RF9 interacts with the acetyl-Lys399 motif by means of its IRF homology2 (IH2) domain, leading to formation of the ISGF3 complex that includes IRF9, STAT1, and STAT2.

SIGNOR-217779

P35222

P04629

0

phosphorylation

up-regulates activity

0.415

EGFR and TRKA effect on WNT3a mediated Topflash induction was abolished by U0126 or expression of dominant negative LRP6-5A mutant (XREF_FIG), demonstrating that both EGFR and TRKA signal via ERK and LRP6 pathway to upregulate WNT and beta-catenin signaling.|FGFR2, FGFR3, EGFR and TRKA Phosphorylate \u03b2-catenin at Tyr142.

SIGNOR-279240

Q9UNE7

P17542

1

ubiquitination

down-regulates quantity by destabilization

0.356

Ubiquitination and degradation of Tal1/SCL are induced by notch signaling and depend on Skp2 and CHIP. CHIP promoted Tal1 degradation with both chaperone binding and ubiquitin ligase activities, which are mediated by its TPR domain and U box, respectively.

SIGNOR-271393

P18564

Q9Y490

2

binding

up-regulates activity

0.577

Over the past 10 years, the binding of talin to the cytoplasmic tail of integrin-β subunits has been established to have a key role in integrin activation. Binding of the phosphotyrosinebinding (PTB)-domain-like subdomain of the protein 4.1, ezrin, radixin, moesin (FERM) domain of talin to the conserved WxxxNP(I/L)Y motif of the β-integrin tail permits additional weaker interactions between talin and the membrane-proximal region of the tail that trigger integrin activation, probably through the disruption of inhibitory interactions between α- and β-subunit cytoplasmic tails.

SIGNOR-257631

Q15262

P40763

1

dephosphorylation

down-regulates activity

0.374

In this study, we investigated whether receptor-type tyrosine protein phosphatase kappa (PTPRK), the only protein tyrosine phosphatase at 6q that contains a STAT3 specifying motif, negatively regulates STAT3 activation in NKTCL.|Phosphatase substrate-trapping mutant assays demonstrated the binding of PTPRK to STAT3, and phosphatase assays showed that PTPRK directly dephosphorylated phospho-STAT3(Tyr705).

SIGNOR-277060

Q9UKI8

Q96PY6

1

phosphorylation

up-regulates activity

0.29

TLK1 phosphorylated NEK1 at T141, which lies in the kinase domain, and caused an increase in its activity.

SIGNOR-275840

P18031

P49759

0

phosphorylation

up-regulates activity

0.347

The CLK family kinases, CLK1 and CLK2, phosphorylate and activate the tyrosine phosphatase, PTP-1B. | although CLK1 and CLK2 directly phosphorylate PTP-1B on both Ser50 and Ser242/Ser243, the preferred CLK phosphorylation site is Ser50, as it is preferentially phosphorylated at an approximate ratio of 9:1 over the Ser242/Ser243 site.

SIGNOR-250773

P00533

P15311

1

phosphorylation

up-regulates

0.529

Ezrin was initially identified as a substrate for tyrosine phosphorylation by egfr (bretscher, 1989) and phosphorylation of residues y145 and y353 were detected to high stoichiometry after egf treatment . Phosphorylation of ezrin at y353 has been delineated to signal survival during epithelial cell differentiation via the phosphatidylinositol 3-kinase (pi3k)/akt pathway.

SIGNOR-133215

P00519

Q14247

1

phosphorylation

up-regulates activity

0.424

Because phosphorylation by c-Abl augments nmMLCK-cortactin interaction to a greater degree than does pp60src phosphorylation, it is likely that phosphorylation sites on nmMLCK unique to c-Abl (i.e., other than Y464 and Y846) are responsible for this enhanced protein-protein interaction.|Moreover, our data indicate that cortactin is itself rapidly phosphorylated on Y486 by c-Abl in EC after S1P (Figure 9).

SIGNOR-278504

P63000

Q9Y2X7

2

binding

up-regulates activity

0.656

Activated RAC1 interacts with GIT1, a GAP protein of ARF6, and causes the inactivation of ARF6 [78]. As ARF6 plays a role in the promotion of the recycling of macropinosomes to the plasma membrane [78], the inactivation of ARF6 by RAC1 reduces the recycling of macropinosomes.

SIGNOR-277783

P17612

O60240

1

phosphorylation

down-regulates activity

0.504

PKA increased lipolysis in cells expressing Peri A because it abrogated the inhibitory actions of Peri A on lipolysis.‚ amino-terminal PKA sites (Ser-81, Ser-222, and Ser-276)

SIGNOR-250028

O14994

P06493

0

phosphorylation

up-regulates

0.2

A rare, missense polymorphism, s470n, was identified in the synapsin iii gene and appeared more frequently in individuals with schizophrenia than in controls. Ser470, was determined to be a substrate for mitogen-activated protein kinase, a downstream effector of neurotrophin action.

SIGNOR-121398

Q9Y4C1

Q6NXT2

1

demethylation

up-regulates activity

0.2

Using a biochemical assay coupled with chromatography, we have purified a JmjC domain-containing protein, JHDM2A, which specifically demethylates mono- and dimethyl-H3K9.

SIGNOR-276847

P53779

O14733

0

phosphorylation

up-regulates

0.582

Two mapkks, sek1 and mkk7, synergistically activate jnk. Sek1 prefers the tyr-185 residue, and mkk7 prefers the thr-183 residue (17, 19).

SIGNOR-137609

P28482

P49418

1

phosphorylation

down-regulates activity

0.265

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-126859

Q9HCU9

O60341

2

binding

up-regulates activity

0.257

Our results have showed that BRMS1 together with LSD1 are required for inhibition of breast cancer cell migration and invasion. Collectively, these findings demonstrate that BRMS1 executes transcriptional suppression of breast cancer metastasis by associating with the LSD1 and thus can be targeted for breast cancer therapy.

SIGNOR-266409

P13500

P41597

2

binding

up-regulates activity

0.786

The investigators showed that myoblasts constitutively express receptors for CCL2 (CCR2), CCL3 (CCR1 and CCR5), and CCL4 (CCR5), and that stimulation with either CCL2 or CCL4 was sufficient to promote myoblast proliferation.

SIGNOR-255113

Q02447

P62136

0

dephosphorylation

down-regulates activity

0.2

Transcription factors Sp1 and Sp3 activate alpha-ENaC2 transcription through a GC-rich element (Sp1-binding site) in the promoter. Sp1 and Sp3 are essential for alpha-ENaC2 transcription in lung epithelial cells and that dephosphorylation of the Sp transcription factors by PP1 suppresses alpha-ENaC2 expression.

SIGNOR-251953

Q9HCE7

Q9UK99

2

binding

down-regulates quantity by destabilization

0.391

F-box protein Fbxo3 targets Smurf1 ubiquitin ligase for ubiquitination and degradation. Here we show that another F-box protein Fbxo3, belonging to the FBXO type protein family, also interacts with and targets Smurf1 for poly-ubiquitination and proteasomal degradation. The SCF complex is composed of F-box protein, Skp1, Cullin1 (Cul1) and ROC1. Fbxo3, whose substrates are few, forms SCF Fbxo3 ubiquitin ligase and regulates the degradations of Fbxl2, p62, HIPK2 and p300 through the ubiquitin-proteasome pathway.

SIGNOR-272441

P29475

P78352

2

binding

up-regulates activity

0.736

Neuronal NOS, a Ca2+-activated form of NOS, can bind to PSD-95 through a class III PDZ domain interaction in which its own amino-terminal PDZ domain binds to a PDZ domain of PSD-95. PSD-95 may concentrate nNOS near the NMDA receptor at postsynaptic sites in these neurons.

SIGNOR-264227

Q96PU5

Q9Y5Y9

1

ubiquitination

down-regulates quantity by destabilization

0.32

The control of Nav density at the cell membrane is crucial to ensuring normal neuronal excitability. Navs are subject to posttranslational modifications that may influence their cell membrane availability. Ubiquitylation is a key process that orchestrates the internalization and subsequent degradation or recycling of Navs. This is accomplished by ubiquitin protein ligases, such as NEDD4-2 (neuronal precursor cell expressed developmentally downregulated-4 type 2).

SIGNOR-253463

P49802

P17252

0

phosphorylation

down-regulates activity

0.364

TNF-α rapidly increases the concentration of functionally active RGS7 protein through two mechanisms. TNF-induced dephosphorylation of serine 434 liberates RGS7 from 14-3-3 binding and inhibition. , PKC α catalyzes the incorporation of phosphate into a truncation of RGS7 fused to maltose-binding protein (MBP.RGS7315–469).

SIGNOR-263165

Q96MS0

O94813

2

binding

up-regulates activity

0.626

This observation suggests that Slit2 may require the Robo2 and Robo3 receptors in this process . Slit2 causes the miRNA miR-182 to release cofilin1 mRNA, potentiating cofilin1 local translation and resulting in growth cone collapse. The use of morpholinos or RNAi to knockdown robo2 and robo3 in X. laevis RGCs, would be useful to further confirm that Robo2 and Robo3 are the receptors involved in Slit2-dependent cofilin1 translation.

SIGNOR-268381

O43639

P09619

2

binding

up-regulates

0.615

The sh2 domains of grb2, nck, and grb4 all precipitated activated pdgf receptor with similar efficiency.

SIGNOR-64740

P52565

P17612

0

phosphorylation

down-regulates

0.387

The results indicate that phosphorylation of gdi_ at ser174 by pka suppresses rhoa activity, providing a potential protective signaling mechanism for inflammatory injury.

SIGNOR-180576

P00746

P00751

1

cleavage

up-regulates activity

0.804

The resulting proconvertase C3bB is subsequently cleaved by factor D (FD), generating the AP C3 convertase C3bBb

SIGNOR-263488

P19784

P08575

1

phosphorylation

up-regulates activity

0.434

Mutational analysis of CK2 consensus sites showed that the target for CK2 was in an acidic insert of 19 amino acids in the D2 domain, and Ser to Ala mutations at amino acids 965, 968, 969, and 973 abrogated CK2 phosphorylation of CD45. CK2 phosphorylation increased CD45 activity 3-fold toward phosphorylated myelin basic protein, and this increase was reversible by PP2A treatment.

SIGNOR-251031

Q9H4B4

Q16665

1

phosphorylation

down-regulates

0.348

Polo-like kinase 3 functions as a tumor suppressor and is a negative regulator of hypoxia-inducible factor-1 alpha under hypoxic conditionsplk3 can potentially inhibit hif-1_ by physical interaction and direct phosphorylation

SIGNOR-178743

P35070

P00533

2

binding

up-regulates

0.747

Betacellulin is synthesized primarily as a transmembrane precursor, which is then processed to mature molecule by proteolytic events;ten growth factors and their erbb specificities are depicted: egf, amphiregulin((ar), and tgfalfa bind erbb-1, betacellulin, heparin binding egf-like growth factor, and epiregulin bing both erbb-1 and erbb-4.

SIGNOR-121953

P54646

P06213

1

phosphorylation

up-regulates

0.372

Ampk phosphorylates and activates theinsulinreceptor, providing a direct link between ampk and theinsulin pathway.

SIGNOR-195324

O60258

P21802

2

binding

up-regulates

0.687

Fgfs bind and activate high-affinity receptor tyrosine kinases. The cloning of fgf receptors (fgfrs) has identified four distinct genes

SIGNOR-42365

P30304

P06493

2

dephosphorylation

up-regulates activity

0.842

Phosphatase activity of Cdc25A is critical for its activating capacity (data not shown). In this context, it should also be mentioned that Cdc25A is able to activate cyclin B-Cdk1 in vitro

SIGNOR-248480

Q9NRJ5

O43865

2

binding

down-regulates activity

0.2

Inositol 1,4,5-triphosphate receptor-binding protein released with inositol 1,4,5-triphosphate (IRBIT) associates with components of the mRNA 3' processing machinery in a phosphorylation-dependent manner and inhibits polyadenylation|In addition to CPSF, IRBIT interacted in vitro with poly(A) polymerase (PAP), which is the enzyme recruited by CPSF to elongate the poly(A) tail, and inhibited PAP activity in a phosphorylation-dependent manner.

SIGNOR-268331

Q05655

Q09472

1

phosphorylation

down-regulates

0.366

Inhibition of histone acetyltransferase function of p300 by pkcdeltawe found that pkcdelta but not classical pkc, specifically phosphorylates p300 at serine 89 in vitro and in vivo. This phosphorylation causes inhibition of p300 intrinsic hat activity.

SIGNOR-94263

P09471

Q9UNW8

2

binding

up-regulates activity

0.2

Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.

SIGNOR-257187

Q03113

Q9UBY5

2

binding

up-regulates

0.467

Serum-borne lysophosphatidic acid (lpa) and sphingosine 1-phosphophate (s1p) act through g12/13-coupled receptors to inhibit the hippo pathway kinases lats1/2 thereby activating yap and taz transcription co-activators, which are oncoproteins repressed by lats1/2.

SIGNOR-198544

Q9NZI8

P60709

1

post transcriptional regulation

up-regulates quantity

0.34

We found that ZBP1 is necessary for netrin-1 stimulated local translation of β-actin mRNA in axonal growth cones. ZBP1 binds to β-actin mRNA in the soma and transports it to the growth cone on microtubules.

SIGNOR-268160

Q8N122

P53350

0

phosphorylation

up-regulates activity

0.329

Of note, MYC-PLK1 (WT) overexpression strongly enhanced MTOR and RPTOR signals in PLK1 IPs, whereas the LAMP2 signal was strongly decreased (XREF_FIG).|Thus, we conclude that PLK1 can directly phosphorylate RPTOR in vitro.

SIGNOR-279346

O15519

P31749

0

phosphorylation

down-regulates quantity

0.466

TNFalpha enhanced FLIP(L) serine phosphorylation, which was increased by activated Akt-1. Serine 273, a putative Akt-1 phosphorylation site in FLIP(L), was critical for the activation-induced reduction of FLIP(L). Thus, these observations document a novel mechanism where by TNFalpha facilitates the reduction of FLIP(L) protein, which is dependent on the phosphatidylinositol 3-kinase/Akt signaling.

SIGNOR-252548

Q13362-3

Q13315

0

phosphorylation

up-regulates activity

0.378

In the present study, we demonstrate that ataxia-telangiectasia mutated (ATM) directly phosphorylates and specifically regulates B56γ3, B56γ2 and B56δ, after DNA damage. We further show that phosphorylation of B56γ3 at Ser510 leads to an increase in B56γ3-PP2A complexes, and direction of PP2A phosphatase activity toward the substrate p53, activating its tumor-suppressive functions. we show that Ser510 phosphorylation significantly enhances the ability of B56γ3 to inhibit cell proliferation and anchorage-independent growth.

SIGNOR-276320

P01137

P08253

0

cleavage

up-regulates

0.555

We also demonstrate that mmp-9, as well as its relative, mmp-2, cleave latent transforming growth factor-beta (tgf-beta), which constitutes a novel mechanism of tgf-beta activation

SIGNOR-74384

P23458

P40763

2

binding

up-regulates activity

0.8

The binding of lif to the lifr induces its heterodimerization with gp130. The formation of this complex results in the activation of the receptor-associated janus kinases (jaks), in the phosphorylation of receptor docking sites, and finally in the recruitment of src homology-2 (sh2) domain containing proteins such as stat3 (signal transducer and activator of transcription 3).

SIGNOR-236369

P08754

Q96P68

2

binding

up-regulates activity

0.385

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-257155

P11908

Q9UHD2

0

phosphorylation

up-regulates activity

0.2

Here, we show that ionizing radiation results in TBK1-mediated phosphorylation of phosphoribosyl pyrophosphate synthetase (PRPS)1/2 at T228, thereby enhancing PRPS1/2 catalytic activity and promoting deoxyribonucleotide synthesis.

SIGNOR-277317

Q9Y5G6

Q9Y5I2

2

binding

up-regulates activity

0.2

The clustered protocadherins comprise the largest subfamily of the cadherin superfamily and are predominantly expressed in the nervous system. Pcdh-alpha proteins interact with beta1-integrin to promote cell adhesion. They also form oligomers with Pcdh-gamma proteins at the same membrane sites.

SIGNOR-265709

P51692

P54764

0

phosphorylation

up-regulates activity

0.375

We have shown here that EphA4 can phosphorylate STAT5B, but it is not yet clear whether the nuclear translocation of phosphorylated STAT5B is enhanced by EphA4.

SIGNOR-278934

P68400

O14737

1

phosphorylation

up-regulates

0.2

Programmed cell death 5 (pdcd5), a protein involved in cell death and down-regulated in different forms of human tumors. Pdcd5 is phosphorylated in vitro by both ck2alpha subunit and by the ck2 holoenzyme at a residue, s118, which is found phosphorylated in vivo. Transfection of the non-phosphorylatable mutant (s118a) impairs the pdcd5 acceleration of either doxorubimicin- or uv-induced apoptosis in u2os cells

SIGNOR-187106

Q969H0

O00141

0

phosphorylation

up-regulates

0.291

Here, we report that the serum- and glucocorticoid-inducible protein kinase sgk1 remarkably reduced the protein stability of the active form of notch1 through fbw7activated sgk1 phosphorylated fbw7 at serine 227

SIGNOR-170404

P14921

Q13164

0

phosphorylation

up-regulates

0.42

9-cis retinoid x receptor alpha (rxr alpha) interacted with erk2 but not erk5 in intact cells, whereas ets-1 interacted preferentially with erk5. Increased phosphorylation of rxr alpha and ets-1 was detected in response to 1,25d. Activated erk2 and erk5 specifically phosphorylated rxr alpha and ets-1, respectively.Mutagenesis of ets-1 (t38a) reduced cyp24 promoter activity to levels observed with the dominant-negative mek5(a) and inhibited erk5-directed phosphorylation. Mutated rxr alpha (s260a) inhibited 1,25d-induced cyp24 promoter activity and abolished phosphorylation by activated erk2.

SIGNOR-88666

O14920

O75688

0

dephosphorylation

down-regulates activity

0.404

PPM1A and PPM1B act as IKKbeta phosphatases to terminate TNFalpha-induced IKKbeta-NF-kappaB activation|Overexpression of PPM1A or PPM1B results in dephosphorylation of IKKbeta at Ser177 and Ser181 and termination of IKKbeta-induced NF-kappaB activation.

SIGNOR-248343

P30518

P38405

2

binding

up-regulates activity

0.269

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-256897

P11413

P53350

0

phosphorylation

up-regulates activity

0.346

We find that Plk1 interacts with and directly phosphorylates glucose-6-phosphate dehydrogenase (G6PD). By activating G6PD through promoting the formation of its active dimer, Plk1 increases PPP flux and directs glucose to the synthesis of macromolecules.|the kinase domain of Plk1 phosphorylates T406, T466 of G6PD

SIGNOR-267581

Q00987

P32121

2

ubiquitination

down-regulates quantity

0.434

Indeed, the ubiquitination of \u03b2-arrestin2 by Mdm2 H457S was severely reduced in comparison to Mdm2 wt ( xref ).|Loss of Mdm2 E3 ligase activity causes dominant nuclear localization of beta-arrestin2.

SIGNOR-278760

Q99618

O60729

0

dephosphorylation

up-regulates

0.281

The phosphatase cdc14b translocates from the nucleolus to the nucleoplasm and induces the activation of the ubiquitin ligase apc/ccdh1

SIGNOR-179664

P25098

Q16581

1

phosphorylation

down-regulates activity

0.2

These findings indicated that agonist-induced C3aR phosphorylation by GRK2 promotes C3aR desensitization.

SIGNOR-279044

P09619

2

phosphorylation

up-regulates activity

0.2

We used two platelet-derived growth factor beta-receptor (beta-PDGFR) mutants to identify events that are required for full engagement (autophosphorylation and activation of the kinase activity) of the beta-PDGFR kinase. The F79/81 receptor (Tyr to Phe substitution at 579 and 581 in the juxtamembrane domain of the receptor) was capable of only very modest ligand-dependent autophosphorylation and also failed to associate with numerous SH2 domain-containing proteins.

SIGNOR-250254

P19174

Q16620

0

phosphorylation

up-regulates activity

0.647

Both Shc and PLCgamma1 are phosphorylated by TrkB, thereby initiating Shc/Ras/MAP kinase and PLCgamma1 signaling respectively.|We conclude that activation of pY783 PLCgamma1 is due mainly to TrkB activation in these models and that TrkB induced PLCgamma1 signaling promotes limbic epileptogenesis.

SIGNOR-279241

Q8IYU2

P63000

1

ubiquitination

down-regulates quantity by destabilization

0.367

The CNF1 toxin of pathogenic Escherichia coli addresses Rac1 to ubiquitin-proteasome system (UPS). We report the essential role of the tumor suppressor HACE1, a HECT-domain containing E3 ubiquitin-ligase, in the targeting of Rac1 to UPS. HACE1 binds preferentially GTP-bound Rac1 and catalyzes its polyubiquitylation

SIGNOR-255538

O60858

2

polyubiquitination

down-regulates quantity by destabilization

0.2

In this study, we showed that the N-degron pathway mediates ubiquitin (Ub)-dependent reticulophagy. During this 2-step process, the ER transmembrane E3 ligase TRIM13 undergoes auto-ubiquitination via lysine 63 (K63) linkage chains and acts as a ligand for the autophagic receptor SQSTM1/p62 (sequestosome 1).

SIGNOR-272219

Q9NRY4

Q13464

0

phosphorylation

down-regulates activity

0.414

these results indicate that Rho-kinase can phosphorylate p190A RhoGAP at Ser1150 in COS7 cells. Similarly, the immunoblot analysis, through the use of the anti-p190A RhoGAP-pT1226 and -pS1236 antibodies, revealed that Rho-kinase can phosphorylate p190A RhoGAP at Thr1226 and Ser1236 in COS7 cells

SIGNOR-276177

P0DTC2

P09958

0

cleavage

up-regulates activity

0.2

Here, we report that the cellular protease furin cleaves the spike protein at the S1/S2 site and that cleavage is essential for S-protein-mediated cell-cell fusion and entry into human lung cells.

SIGNOR-262305

Q9H2X6

Q08050

1

phosphorylation

up-regulates activity

0.2

In conclusion, the phosphorylation of FOXM1 by HIPK2 can promote FOXM1 transcription activity and cell proliferation in RCC, thus, indicating a potential mechanism for the treatment of human RCC in the future.

SIGNOR-278944

Q969W9

P49910

0

transcriptional regulation

down-regulates quantity by repression

0.271

ZNF165 drives the unrestrained activation of transforming growth factor β (TGFβ) signalling by directly inactivating the expression of negative feedback pathway regulators, SMURF2, SMAD7 and PMEPA1.

SIGNOR-266094

Q68CJ9

P49841

0

phosphorylation

down-regulates activity

0.549

It is possible that phosphorylation of CREBH by GSK3beta leads to altered CREBH conformation with a resulting decreased affinity toward the COPII coated transport complex.|Similarly, expression of dominant negative GSK3beta can rescue the decreased CREBH cleavage activity in the Bmal1 knockdown hepatocytes under the circadian clock (XREF_FIG), thus confirming that BMAL1 controls circadian regulated CREBH cleavage and activation through AKT and GSK3beta signaling in hepatocytes.

SIGNOR-279785

Q05655

P51828

1

phosphorylation

up-regulates activity

0.555

Immunoprecipitation data indicated that PKCdelta could bind and directly phosphorylate AC7.

SIGNOR-279258