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
Q9UPR3	Q9BY41	2	binding	up-regulates quantity by stabilization	0.642	Here, we report that the human ortholog of the yeast ever-shorter telomeres 1B (EST1B) binds HDAC8. This interaction is regulated by protein kinase A-mediated HDAC8 phosphorylation and protects human EST1B (hEST1B) from ubiquitin-mediated degradation.	SIGNOR-272650
P16144	Q99704	2	binding	down-regulates activity	0.2	Integrins also bind to many PTBdomain-containing proteins (Calderwood et al., 2003) – including Dok1 and integrincytoplasmic-domain-associated protein 1 (ICAP1) – and these can compete with talin for binding to integrin and so can impair activation	SIGNOR-257689
P14136	Q9UQM7	0	phosphorylation	down-regulates activity	0.427	On the other hand, GFAP was phosphorylated to approximately 1.9 mol of phosphate/mol of GFAP by Ca(2+)-CaM-dependent protein kinase II, and this phosphorylation did induce disassembly of the filament. Sequential analysis of the purified phosphopeptides revealed that only Ser8 on GFAP was phosphorylated by cdc2 kinase, whereas Ser13, Ser17, Ser34, and Ser389 on GFAP were phosphorylated by Ca(2+)-CaM-dependent protein kinase II.	SIGNOR-250626
Q9Y5I2	Q9Y5G5	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-265702
P04899	P61073	2	binding	up-regulates activity	0.484	Using this model, we have reported that CXCL12 activates Gi1, Gi2, or Gi3 heterotrimeric G proteins in a concentration-dependent manner	SIGNOR-278103
Q5SQI0	Q6PEY2	1	acetylation	up-regulates quantity by stabilization	0.267	Alpha-Tubulin acetyltransferase (alphaTAT1) is the major α-tubulin lysine-40 (K40) acetyltransferase in mammals, nematodes, and protozoa, and its activity plays a conserved role in several microtubule-based processes.\|The tubulin subunits of microtubules are acetylated, and lysine-40 (K40) of the alpha-tubulin subunit has been identified as an important conserved site of microtubule acetylation (6–8). This modification is considered a hallmark of stable, long-lived microtubules	SIGNOR-272248
Q12857	Q9Y6N7	1	transcriptional regulation	up-regulates quantity	0.2	For example, within the NFI targetome, we identified 6 collagen genes, 13 genes encoding potassium channel or glutamate receptor subunits and a range of factors related to axon guidance (e.g. Slit1, Robo1, Epha4, Epha5, Epha8)	SIGNOR-268893
P49840	Q9NZQ7	1	phosphorylation	down-regulates quantity by destabilization	0.2	We find EGFR inhibitors promote PD-L1 ubiquitination and proteasomal degradation following GSK3α-mediated phosphorylation of Ser279/Ser283. We identify ARIH1 as the E3 ubiquitin ligase responsible for targeting PD-L1 to degradation.	SIGNOR-277552
Q9Y5G8	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-265717
P48058	P17612	0	phosphorylation	up-regulates	0.429	We found that pka phosphorylation of the ampa receptor subunits glur4 and glur1 directly controlled the synaptic incorporation of ampa receptors in organotypic slices from rat hippocampus.	SIGNOR-97550
Q96G30	P32245	2	binding	down-regulates activity	0.504	We report that MRAP and MRAP2 can interact with all 5 MCRs. This interaction results in MC2R surface expression and signaling. In contrast, MRAP and MRAP2 can reduce MC1R, MC3R, MC4R, and MC5R responsiveness to [Nle4,D-Phe7]alpha-melanocyte-stimulating hormone (NDP-MSH). MRAP and MRAP2 can reduce the surface expression of MC4R and also the signaling of this receptor. we observed a significant decrease in the cell-surface expression of MC4R and MC5R in the presence of MRAP and MRAP2. It is interesting that MRAP and MRAP2 have opposite effects in the modulation of different MCR family members.	SIGNOR-252363
Q9H0E2	Q9NPH3	2	binding	down-regulates activity	0.638	Binding of IL-1 to its receptor results in rapid assembly of a membrane-proximal signalling complex that consists of two different receptor chains (IL-1Rs), IL-1RI and IL-1RAcP, the adaptor protein MyD88, the serine/threonine kinase IRAK and a new protein, which we have named Tollip. Here we show that, before IL-1β treatment, Tollip is present in a complex with IRAK, and that recruitment of Tollip–IRAK complexes to the activated receptor complex occurs through association of Tollip with IL-1RAcP. Co-recruited MyD88 then triggers IRAK autophosphorylation, which in turn leads to rapid dissociation of IRAK from Tollip (and IL-1Rs)	SIGNOR-251979
Q8IV61	Q04759	0	phosphorylation	up-regulates	0.328	Activation of rasgrp3 by phosphorylation of thr-133 is required for b cell receptor-mediated ras activation. our data suggest that pkc, after being activated by diacylglycerol, phosphorylates rasgrp3, thereby contributing to its full activation.	SIGNOR-130490
Q9Y6Y9	P09429	2	binding	up-regulates activity	0.63	Here we demonstrate that the extracellular TLR4 adaptor, myeloid differentiation factor 2 (MD-2), binds specifically to the cytokine-inducing disulfide isoform of HMGB1, to the exclusion of other isoforms. Using MD-2-deficient mice, as well as MD-2 silencing in macrophages, we show a requirement for HMGB1-dependent TLR4 signaling.	SIGNOR-252058
Q9HCX4	Q13976	0	phosphorylation	up-regulates activity	0.2	In vitro and in vivo kinase assays have revealed that cGK-Iα phosphorylates mouse TRPC7 but not mouse TRPC3. Site-directed mutagenesis analysis revealed that TRPC7 was phosphorylated by cGK-Iα at threonine 15. Phosphorylation of TRPC7 significantly suppressed carbachol-induced calcium influx and CREB phosphorylation. These data indicate that cGK-Iα interacts with and phosphorylates TRPC7, contributing to the quick and accurate regulation of calcium influx and CREB phosphorylation.	SIGNOR-263184
Q9BXM7	P62987	1	phosphorylation	up-regulates	0.385	Here we report that ubiquitin is the genuine substrate of PINK1. PINK1 phosphorylated ubiquitin at Ser 65 both in vitro and in cells, and a Ser 65 phosphopeptide derived from endogenous ubiquitin was only detected in cells in the presence of PINK1 and following a decrease in mitochondrial membrane potential.	SIGNOR-270342
P01266	P27695	0	transcriptional regulation	up-regulates quantity by expression	0.2	In co-transfection experiments, Ref-1 increases the Pax-8 activating effect on thyroglobulin promoter.	SIGNOR-271694
O15273	P49841	0	phosphorylation	down-regulates quantity by destabilization	0.2	GSK-3beta phosphorylates FBXL21 and TCAP to activate FBXL21-mediated, phosphodegron-dependent TCAP degradation.\|These results show direct GSK-3beta phosphorylation of TCAP S157 and FBXL21 T33 sites.	SIGNOR-264852
Q13464	P61586	2	binding	up-regulates activity	0.81	Planar cell polarity (pcp) signalling triggers activation of the small gtpases rhoa and rac1, which in turn activate rho kinase (rock) and jun-n-terminal kinase (jnk), respectively, leading to actin polymerization and microtubule stabilization.	SIGNOR-199542
P12830	Q15139	0	phosphorylation	up-regulates	0.451	Our study has identified e-cadherin as a novel substrate of pkd1, and phosphorylation of e-cadherin by pkd1 is associated with increased cellular aggregation and decreased cellular motility in prostate cancer.	SIGNOR-133856
O43896	Q9NRW1	1	relocalization	up-regulates quantity	0.2	Here, we identify Bicaudal-D-related protein 1 (BICDR-1) as an effector of the small GTPase Rab6 and key component of the molecular machinery that controls secretory vesicle transport in developing neurons. BICDR-1 interacts with kinesin motor Kif1C, the dynein/dynactin retrograde motor complex, regulates the pericentrosomal localization of Rab6-positive secretory vesicles and is required for neural development in zebrafish. In young neurons, BICDR-1 accumulates Rab6 secretory vesicles around the centrosome, restricts anterograde secretory transport and inhibits neuritogenesis. Later during development, BICDR-1 expression is strongly reduced, which permits anterograde secretory transport required for neurite outgrowth. These results indicate an important role for BICDR-1 as temporal regulator of secretory trafficking during the early phase of neuronal differentiation.	SIGNOR-266878
Q9HD90	O00712	0	transcriptional regulation	up-regulates quantity	0.2	For example, within the NFI targetome, we identified 6 collagen genes, 13 genes encoding potassium channel or glutamate receptor subunits and a range of factors related to axon guidance (e.g. Slit1, Robo1, Epha4, Epha5, Epha8)	SIGNOR-268898
Q12913	P08581	1	dephosphorylation	down-regulates activity	0.608	When co-expressed in 293 cells, the full-length substrate-trapping mutant form of DEP-1 formed a stable complex with the chimeric receptor colony stimulating factor 1 (CSF)-Met and wild type DEP-1 dephosphorylated CSF-Met. Furthermore, we observed that DEP-1 preferentially dephosphorylated a Gab1 binding site (Tyr(1349)) and a COOH-terminal tyrosine implicated in morphogenesis (Tyr(1365)),	SIGNOR-248702
O14641	O14641	2	binding	up-regulates activity	0.2	Dix domain of dvl2 mediates dynamic polymerization, which is essential for the signaling activity of dvl2.	SIGNOR-155224
P27361	P35236	1	phosphorylation	up-regulates activity	0.693	First, Erk phosphorylates HePTP at residues Thr45 and Ser72. Second, HePTP dephosphorylates Erk at PTyr185.\|	SIGNOR-249475
Q13315	P20823	1	phosphorylation	up-regulates	0.256	Serine 249 phosphorylation by atm protein kinase regulates hepatocyte nuclear factor-1_ transactivation	SIGNOR-205087
P06241	P11912	1	phosphorylation	up-regulates activity	0.596	Lyn and Fyn phosphorylated the CD79a cytoplasmic portion of the fusion proteins well, with >80% of phosphorylation occurring at Y182. CD79a and CD79b function as transducers of B cell antigen receptor signals via a cytoplasmic sequence, termed the immunoreceptor tyrosine-based activation motif (ITAM).	SIGNOR-251153
Q9BT67	P46934	1	relocalization	up-regulates activity	0.589	Ndfip1 is primarily localized in the Golgi apparatus where it recruits Nedd4-2 to mediate the degradation of mature hERG proteins during channel trafficking to the plasma membrane. Although Ndfip2 directs Nedd4-2 to the Golgi apparatus, it also recruits Nedd4-2 to the multivesicular bodies (MVBs), which may impair MVB function and impede the degradation of mature hERG proteins mediated by Nedd4-2.	SIGNOR-260997
Q92769	Q5VUA4	2	binding	up-regulates activity	0.329	A central domain of TZF is required for repression of AR-mediated transactivation. The results revealed that HDAC2 was coimmunoprecipitated with TZF (Fig. 6A), These results indicate that AR, TZF and HDAC2 form a ternary complex during the repression of AR-mediated transactivation.	SIGNOR-261188
P43119	P38405	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-256949
Q9H3R0	P10275	2	binding	up-regulates activity	0.2	JMJD2C was found to be co-localized with AR and LSD1 in the epithelium of prostate carcinoma and normal prostate cells. For the detailed mechanism, JMJD2C, AR and LSD1 assembled on the chromatin to remove the methyl groups from mono-, di- and trimethylated H3K9. Importantly, JMJD2C specifically removed the demethylation of the trimethyl H3K9 marks and modulated the transcriptional activity of AR. Moreover, JMJD2C cooperated with LSD1 and activated AR-mediated gene expression via decreasing H3K9me3 at the promoter of AR targeting genes KLK2 and PSA.	SIGNOR-263879
P09341	P17612	2	binding	down-regulates	0.2	As pka suppresses the activity of gli, smo might use the stimulation of pi3k by galfai and gbetagamma subu- nits to block pka in cells that have high levels of camp.	SIGNOR-152594
Q03113	P32238	2	binding	up-regulates activity	0.25	Our studies indi-cate that CCK-A receptors inserted into NIH3T3 cellsalso activate RhoA through G12/13	SIGNOR-278063
P03209	Q14653	1	transcriptional regulation	down-regulates quantity by repression	0.2	EBV Rta selectively down-regulates the expression of IRF3 and IRF7, the main regulators of the Type I IFNs.	SIGNOR-266644
Q53ET0	Q9Y2K2	0	phosphorylation	down-regulates activity	0.635	We found that QSK and SIK phosphorylated TORC2 at Ser171 as well as at least two additional residues, namely Ser70 and Ser348\|QIK also phosphorylates the CREB co-activator TORC2, in unstimulated cells, to sequester it in the cell cytoplasm, thereby inhibiting CREB-dependent gene-expression	SIGNOR-249170
P42681	Q13094	1	phosphorylation	up-regulates	0.728	Resting lymphocyte kinase (rlk/txk) targets lymphoid adaptor slp-76 in the cooperative activation of interleukin-2 transcription in t-cells. In this study, we report that rlk phosphorylates slp-76 at its n-terminal yesp/yepp sites. A third tyrosine within the amino-terminal region (y145) appears to be the most important for optimal slp-76 function	SIGNOR-44669
P04637	Q07812	2	binding	up-regulates	0.753	P53 also accumulates in the cytoplasm where it directly activates bax to promote mitochondrial outer membrane permeabilization.	SIGNOR-140242
P33981	P21589	1	phosphorylation	up-regulates activity	0.2	Intermolecular NTE phosphorylation by Mps1 requires a topology in which sites proximal to the NTE interact with the active Mps1 in order to promote phosphorylation.	SIGNOR-280157
O75030	P20265	0	transcriptional regulation	up-regulates quantity by expression	0.437	We further demonstrate that BRN2 induces MITF transcription through a binding site located at 50/36 of the MITF promoter	SIGNOR-249616
P08247	Q05193	2	binding	up-regulates activity	0.333	The GTPase dynamin I is required for synaptic vesicle (SV) endocytosis. Our observation that dynamin binds to the SV protein synaptophysin in a Ca2+-dependent fashion suggested the possibility that a dynamin/synaptophysin complex functions in SV recycling.	SIGNOR-264119
O43524	P27361	0	phosphorylation	down-regulates quantity by destabilization	0.595	Phosphorylation of foxo3a by erk1/2 at residues ser 294, ser 344 and ser 425 increases foxo3amdm2 interaction and enhances foxo3a degradation via an mdm2-dependent ubiquitin-proteasome pathway	SIGNOR-184569
P18564	O14713	2	binding	down-regulates activity	0.287	Integrins also bind to many PTBdomain-containing proteins (Calderwood et al., 2003) – including Dok1 and integrincytoplasmic-domain-associated protein 1 (ICAP1) – and these can compete with talin for binding to integrin and so can impair activation	SIGNOR-257662
Q9BQQ3	P28482	0	phosphorylation	down-regulates activity	0.27	Here we show that GRASP65 is phosphorylated on serine 277 in interphase cells, and this is strongly enhanced in response to the addition of serum or epidermal growth factor. This is directly mediated by ERK suggesting that GRASP65 has some role in growth factor signal transduction. These results argue against Ser-277 phosphorylation alone causing the dissolution of GRASP65 oligomers and cisternal unstacking, although it may make a significant contribution to these events.	SIGNOR-262841
Q16875	Q9P1W9	0	phosphorylation	up-regulates quantity by stabilization	0.2	We used biochemical methods to determine that PIM2 can directly bind and change the phosphorylation of PFKFB3 at Ser478 to enhance PFKFB3 protein stability through the ubiquitin-proteasome pathway.	SIGNOR-277554
P08559	P54646	0	phosphorylation	up-regulates activity	0.2	AMPKα phosphorylates PDHA subunit on Ser295 and Ser314 to activate PDH complex	SIGNOR-276838
O75030	P16220	0	transcriptional regulation	up-regulates quantity by expression	0.633	Therefore, the molecular steps linking cAMPto melanogenesis up-regulation appear currently better elucidated. cAMP activates PKA, and PKA phosphorylates and activates CREB which, when activated, binds to the CRE domain present in the microphthalmia promoter,thereby up-regulating its transcription.	SIGNOR-249619
O00327	P37231	0	transcriptional regulation	up-regulates quantity by expression	0.399	Rosiglitazone treatment induced aortic expression of Bmal1 mRNA, and ChIP and promoter assays revealed that Bmal1 is a direct PPARgamma target gene. These studies have uncovered a role for vascular PPARgamma as a peripheral factor participating in regulation of cardiovascular rhythms.	SIGNOR-268026
P31749	P98170	1	phosphorylation	up-regulates quantity by stabilization	0.618	Akt, including akt1 and akt2, interacts with and phosphorylates x-linked inhibitor of apoptosis protein (xiap) at residue serine-87 in vitro and in vivo. Phosphorylation of xiap by akt protects xiap from ubiquitination and degradation in response to cisplatin.	SIGNOR-119488
Q15276	P20339	2	binding	up-regulates	0.928	We have previously shown that rab5, which regulates various steps of transport along the early endocytic pathway, is activated by a complex consisting of rabex-5, a rab5 nucleotide exchange factor, and the effector rabaptin-5.	SIGNOR-109352
Q9HC56	P05556	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.	SIGNOR-269035
O95837	O60755	2	binding	up-regulates activity	0.289	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-257206
P17181	P01574	2	binding	up-regulates	0.867	Ifn-alpha, ifn-beta, and ifn-omega, induce somewhat different cellular effects but act through a common receptor complex, ifnar, composed of subunits ifnar-1 and ifnar-2.	SIGNOR-104663
P47710	Q04206	1	phosphorylation	up-regulates	0.2	Phosphorylation of serine 529 of p65 is mediated by casein kinase ii, but is prevented in nonstimulated cells by the interaction with ikba	SIGNOR-171222
Q15303	Q96JA1	0	ubiquitination	down-regulates	0.608	We report upregulation of lrig1 transcript and protein upon egf stimulation, and physical association of the encoded protein with the four egfr orthologs of mammals. Upregulation of lrig1 is followed by enhanced ubiquitylation and degradation of egfr. The underlying mechanism involves recruitment of c-cbl, an e3 ubiquitin ligase that simultaneously ubiquitylates egfr and lrig1 and sorts them for degradation.	SIGNOR-139954
Q9HA47	Q13315	0	phosphorylation	down-regulates quantity by destabilization	0.2	ATM also phosphorylates UCK1 at S145, significantly enhancing the KLHL2-UCK1 complex formation\|We demonstrated that the ubiquitin E3 ligase KLHL2 interacted with UCK1 and mediated its polyubiquitination at the K81 residue and degradation.	SIGNOR-275963
P12931	P46934-4	1	phosphorylation	up-regulates activity	0.417	Activation of c-Src by epidermal growth factor (EGF) also promoted tyrosine phosphorylation and enhanced the activity of NEDD4.	SIGNOR-276860
P26599	P01106	0	transcriptional regulation	up-regulates quantity by expression	0.438	We also demonstrate that the oncogenic transcription factor c-Myc upregulates transcription of PTB, hnRNPA1 and hnRNPA2,	SIGNOR-268689
P15976	Q01196	2	binding	up-regulates activity	0.643	We and others have previously shown that RUNX1 and GATA-1 physically interact and cooperate in the activation of megakaryocytic promoters such as alpha IIb integrin and glycoprotein Ibalpha. In particular, we will elaborate on recent data which suggest that GATA-1 targets RUNX1 for modification, in particular phosphorylation by cyclin-dependent kinases. Furthermore, targeting of RUNX1 by GATA-1 for phosphorylation may convert RUNX1 from a repressor to an activator. This is a potential mechanism of transcriptional cooperation and may be an essential step in megakaryocytic differentiation.	SIGNOR-254194
Q92823	P54762	0	phosphorylation	up-regulates activity	0.411	EphB receptors were found to induce phosphorylation of NrCAM on the tyrosine residue within the FIGQY ankyrin binding motif, inhibiting ankyrin recruitment. Furthermore, NrCAM phospho-FIGQY levels in the SC were decreased in EphB1/3 and EphB1/2/3 null mice and increased in mutant mice overexpressing constitutively active EphB2 kinase.	SIGNOR-262862
Q16552	Q9BYH8	0	transcriptional regulation	up-regulates quantity by expression	0.381	In cooperation with RORγt and RORα, IκBζ enhances Il17a expression by binding directly to the regulatory region of the Il17a gene.	SIGNOR-266210
Q02763	O95841	2	binding	up-regulates	0.506	In experiments with human endothelial cell lines, ang3 was identified as an antagonist of tie2 and ang4 was identified as an agonist of tie2.	SIGNOR-127354
O75030	P28482	0	phosphorylation	down-regulates	0.705	The current study reveals that c-kit signaling triggers two phosphorylation events on mi, which up-regulate transactivation potential yet simultaneously target mi for ubiquitin-dependent proteolysis. The specific activation/degradation signals derive from mapk/erk targeting of serine 73the results suggested that s1p reduced melanin synthesis via s1p(3) receptor-mediated erk and rsk-1 activation, and subsequent mitf dual phosphorylation and degradation.	SIGNOR-75030
O15530	P31751	1	phosphorylation	up-regulates activity	0.732	Akt1 and akt2 are phosphorylated and activated by the protein kinase pdk1 at thr-308 or thr-309, respectively, in the activation t-loop, and further activation occurs through phosphorylation at ser-473 or ser-474, respectively. Pdk1 phosphorylates akt-2 at thr 309 in the catalytic domain, leading to enzymatic activation.	SIGNOR-134485
Q16665	P46531	0	relocalization	up-regulates activity	0.649	The notch intracellular domain interacts with hif-1alpha and hif-1alpha is recruited to notch-responsive promoters upon notch activation under hypoxic conditions.	SIGNOR-141315
P06493	P49821	1	phosphorylation	up-regulates activity	0.2	Here, we show that a fraction of cyclin B1/Cdk1 proteins localizes to the matrix of mitochondria and phosphorylates a cluster of mitochondrial proteins, including the complex I (CI) subunits in the respiratory chain. Cyclin B1/Cdk1-mediated CI phosphorylation enhances CI activity, whereas deficiency of such phosphorylation in each of the relevant CI subunits results in impairment of CI function.\|These results were confirmed by generating phosphorylation defective forms of the five CI subunits through substitutions of S/T residues with Alanine (A) on either Cdk1 optimal or minimal consensus motifs (T383 on NDUFV1, S105 on NDUFV3, S364 on NDUFS2, S55/S29/T5 on NDUFB6, and T142/T120 on NDUFA12). The mutation of Cdk1 consensus motifs severely diminished their phosphorylation	SIGNOR-275594
P53350	O15350	1	phosphorylation	down-regulates	0.51	P73-mediated transcriptional activity is negatively regulated by polo-like kinase 1. tap73 is phosphorylated by this kinase on threonine-27 (thr-27) within the ta domain.	SIGNOR-178253
P21796	Q96A26	2	binding	up-regulates activity	0.2	HGTD-P was coprecipitated with VDAC but not with ANT or cyclophilin D (Fig. 7A, left upper panel).\|However, it is not clear at present whether HGTD-P participates directly in channel formation in association with VDAC or modulates its channel-forming activity.	SIGNOR-260293
Q13627	Q05193	1	phosphorylation	down-regulates	0.416	Mnb/dyrk1a was shown to phosphorylate dynamin 1 and alter its interactions with several sh3 domain-containing endocytic accessory proteins.Phosphorylation At s795 and s857 was confirmed in full-length dynamin 1, and s857 was subsequently determined to be the major mnb/dyrk1a phosphorylation site in vitro. Phosphorylation at s857 was demonstrated to be the basis for altering the binding of dynamin 1 to amphiphysin 1 and grb 2 by site-directed mutants mimicking phosphorylation.	SIGNOR-127440
O00399	P53350	2	binding	up-regulates activity	0.374	Here, we show that the p27/p25 heterodimer undergoes mitotic phosphorylation by cyclin‐dependent kinase 1 (Cdk1) at a single site, p27 Thr186, to generate an anchoring site for polo‐like kinase 1 (Plk1) at kinetochores.	SIGNOR-264798
Q99538	Q6R6M4	0	deubiquitination	down-regulates quantity by destabilization	0.309	We demonstrate that TRAF6 ubiquitinates the proform of AEP through K63-linked polyubiquitin, reversible by USP17, and forms a complex with HSP90α to subsequently promote pro-AEP intracellular stability as well as secretion. We now present evidence that AEP is a substrate for TRAF6 ubiquitination, resulting in AEP/TRAF6/HSP90α complex formation.	SIGNOR-272854
Q05682	P17252	0	phosphorylation	down-regulates	0.357	Phosphorylation of both intact caldesmon and of its c-terminal fragment (658c), containing residues 658-756, significantly decreased their ability to inhibit acto-heavy meromyosin atpase.	SIGNOR-36792
O94782	Q8WYQ5	1	deubiquitination	up-regulates quantity by stabilization	0.2	Specifically, radiation-induced ATM-dependent phosphorylation of DGCR8 at serine 677 facilitates USP51 to bind, deubiquitinate, and stabilize DGCR8, which leads to the recruitment of DGCR8 and DGCR8's binding partner RNF168 to MDC1 and RNF8 at DSBs.	SIGNOR-277308
P12931	Q16832	1	phosphorylation	up-regulates	0.38	Here, using baculoviral co-expression of the ddr2 cytosolic domain and src, we show that src targets three tyrosine residues (tyr-736, tyr-740, and tyr-741) in the activation loop of ddr2 for phosphorylation. This phosphorylation by src stimulates ddr2 cis-autophosphorylation of additional tyrosine residues.	SIGNOR-140767
P14921	P49841	0	phosphorylation	up-regulates quantity by stabilization	0.2	Here, we show that ETS1 forms a complex with glycogen synthase kinase-3β (GSK3β). Specifically, GSK3β-mediated phosphorylation of ETS1 at threonine 265 and serine 269 promoted protein stability, induced the transcriptional activation of matrix metalloproteinase (MMP)-9, and increased cell migration.	SIGNOR-277560
O95837	Q9HBW0	2	binding	up-regulates activity	0.484	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-257431
Q5T7P8	P05771	0	phosphorylation	up-regulates activity	0.2	We found by site-directed mutagenesis that Thr418 and/or Thr419 in the polybasic region (KKKTTIK) of the C2B domain--a key region for the function of synaptotagmins--are the PKC target that regulates its inhibitory effect on acrosomal exocytosis. Similarly, we showed that Thr284 in the polybasic region of C2A (KCKLQTR) is the target for PKC-mediated phosphorylation in this domain.	SIGNOR-273565
Q96GF1	Q12981	1	polyubiquitination	up-regulates activity	0.533	RNF185 functions as a ubiquitin E3 ligase, enabling BNIP1-p62 interaction. Here we show that human RNF185 is a mitochondrial ubiquitin E3 ligase that regulates selective mitochondrial autophagy in cultured cells. Human BNIP1 colocalizes with RNF185 at mitochondria and is polyubiquitinated by RNF185 through K63-based ubiquitin linkage in vivo. The polyubiquitinated BNIP1 is capable of recruiting autophagy receptor p62, which simultaneously binds both ubiquitin and LC3 to link ubiquitination and autophagy. RNF185 interacts with BNIP1 and ATG5	SIGNOR-271931
Q00535	Q9Y696	1	phosphorylation	up-regulates quantity by stabilization	0.2	These results confirm that CDK5 phosphorylates CLIC4 at serine 108.\|We found that activated CDK5 phosphorylated serine 108 in CLIC4, increasing CLIC4 protein stability, and accumulation.	SIGNOR-279451
P01112	Q5VWQ8	0	gtpase-activating protein	down-regulates activity	0.6	The GAP domain of DAB2IP is homologous to other Ras-GAPs, such as GAP120 and neurofibromin (NF1), and can stimulate the GTPase activity of RAS proteins both in vitro and in cancer cell lines. DAB2IP is able to stimulate in vitro and in vivo the GTPase activity of RAS proteins (H-Ras, K-Ras, and N-Ras) facilitating GTP hydrolysis to GDP.	SIGNOR-254745
P19793	P37231	2	binding	up-regulates	0.743	Although the three ppar subtypes are closely related and bind to similar dna response elements as heterodimers with the 9-cis retinoic acid receptor rxr, each subserves a distinct physiology	SIGNOR-105445
Q5UE93	P31749	0	phosphorylation	up-regulates activity	0.45	P84 forms a negative regulatory complex with p110gamma to control PI3Kgamma signalling during cell migration\|However, phosphorylation at this site was confirmed using an in vitro kinase assay in which Akt kinase was shown to readily phosphorylate Thr607 using a p84 peptide (Figure 1e), where Thr607 in conjunction with surrounding residues forms an Akt kinase consensus sequence\|In contrast, although p84-T607A exhibited basal p110γ dimerisation, this interaction could not be further induced with stimulation	SIGNOR-275722
O15392	P53350	0	phosphorylation	up-regulates	0.583	Thus, we conclude that plk1-mediated phosphorylation of sur at ser20 is critical for accurate chromosome segregation\|SUR (survivin)	SIGNOR-170460
P62136	P38398	1	dephosphorylation	down-regulates activity	0.377	Protein kinases involved in the DNA damage checkpoint control, such as ATM, ATR, and hCds1/Chk2, have been shown to phosphorylate and activate BRCA1 upon DNA damage. \|Altogether, these results indicate that PP1α specifically dephosphorylates BRCA1 at multiple serine sites, including S988 [12], S1423, and S1524.	SIGNOR-248560
P15884	P35222	2	binding	up-regulates activity	0.69	beta-catenin interacts with the TCF/Lef family transcription factors.	SIGNOR-178042
Q8N726	Q9UHC7	0	polyubiquitination	down-regulates quantity by destabilization	0.366	Biochemical analyses confirmed that MKRN1 targets p14ARF for ubiquitination and subsequent proteasome-dependent degradation.The Skp1-Cul1-F-box-protein44 (SCF(FBXO44)) complex ubiquitinates full-length BRCA1 in vitro.	SIGNOR-272036
Q99986	Q12888	1	phosphorylation	up-regulates	0.399	The kinase vrk1 is activated by dna double strand breaks induced by ionizing radiation (ir) and specifically phosphorylates 53bp1 in serum-starved cells./ Vrk1 knockdown resulted in the defective formation of 53bp1 foci in response to ir both in number and size	SIGNOR-197625
P08069	Q13191	0	ubiquitination	down-regulates quantity by destabilization	0.422	The ubiquitin ligase Cbl-b also ubiquitinated and degraded IGF-IR and inhibited the Akt/ERK-miR-200c-ZEB2 axis, leading to the repression of IGF-I-induced EMT.	SIGNOR-278607
P11166	P27105	2	binding	down-regulates activity	0.527	Similar to the results obtained in the RBC, Glut1 and stomatin immunoprecipitated with each other in lysates of Clone 9 cells. The above results suggest that stomatin is closely associated with Glut1 in the plasma membrane and that overexpression of stomatin results in a depression in the basal rate of glucose transport.	SIGNOR-261278
P43354	P28482	0	phosphorylation	up-regulates	0.395	We have shown that erk2 is a kinase to phosphorylate nurr1 on multiple sites. S126 and t132, which are located near af1 core of nurr1, are dominant sites phosphorylated by erk2. reporter gene assays show that nurr1delta124-133/t185a, an erk2 phospho-site mutant form, could not further increase its transcriptional activity on th promoter, suggesting that nurr1 phosphorylation by erk2 may regulate its transcriptional activity on th promoter.	SIGNOR-157167
Q06830	P06239	0	phosphorylation	down-regulates activity	0.2	Inactivation of peroxiredoxin I by phosphorylation allows localized H(2)O(2) accumulation for cell signaling. To determine whether Prxs are phosphorylated, we subjected recombinant human PrxI and II to an in vitro kinase assay with two nonreceptor PTKs, Lck and Abl, in the presence of [γ-32P]ATP. Both PTKs phosphorylated PrxI and PrxII. Phosphorylation of the wild-type protein was detected, whereas that of the Y194F mutant was not (Figure 1B), indicating that Tyr194 is the only site of tyrosine phosphorylation.	SIGNOR-276277
P00519	Q03468	1	phosphorylation	up-regulates activity	0.271	N-terminal region of CSB interacts with the SH3 domain of c-Abl in vitro and in vivo. In addition, c-Abl kinase phosphorylates CSB at Tyr932. our results suggest that c-Abl interacts with and tyrosine phosphorylates CSB. This interaction may play an important role in the response to oxidative stress, resulting in activation of c-Abl, tyrosine phosphorylation of CSB and more efficient BER of oxidative DNA damage. Tyrosine-phosphorylated CSB may serve as a signal for repair proteins to localize to DNA damage and may help maintain active transcription in the nucleolus.	SIGNOR-251933
Q8WUJ0	Q969H0	2	binding	down-regulates activity	0.346	STYX acts as a direct inhibitor of FBXW7, affecting the cellular levels of its substrates. Furthermore, we find that levels of STYX and FBXW7 are anti-correlated in breast cancer patients,	SIGNOR-251663
P48431	O00308	0	ubiquitination	down-regulates quantity	0.361	Among the four E3 ligases, only WWP2 knockdown was found to increase SOX2 protein levels in GSCs (Fig.\u00a04A).\|We first verified that WWP2 ubiquitinates SOX2 in vitro.	SIGNOR-278798
P20396	P23769	0	transcriptional regulation	up-regulates quantity by expression	0.263	The rat prepro-TRH gene is activated by GATA2.	SIGNOR-267259
Q96HE7	Q9BS26	2	binding	up-regulates quantity by stabilization	0.2	Here, we report the functional characterization of a novel UPR-induced ER resident protein (ERp44) that forms mixed disulfides with both hEROs, as well as with partially unfolded Ig subunits.	SIGNOR-261049
P07948	P31995	1	phosphorylation	up-regulates activity	0.2	Fyn and Blk definitely phosphorylate Y-282 in the ITAM of FcgRIIa/c, whereas the non-ITAM tyrosine residue (Y-275) becomes phosphorylated by Syk, as the phosphorylation of double point mutants shows. In addition to these tyrosine residues, Fyn, Blk, and Syk might phosphorylate the most C-terminal tyrosine residue (Y-298) because altering this tyrosine residue together with one of the tyrosine residues clearly shown to be phosphorylated by the respective PTK results in the abrogation of phosphorylation	SIGNOR-262676
O14641	Q96GF1	0	polyubiquitination	down-regulates quantity by destabilization	0.466	The E3 ligase RNF185 negatively regulates osteogenic differentiation by targeting Dvl2 for degradation. Overexpression of RNF185 decreases the exogenous and endogenous level of Dvl2, promotes the ubiquitination and degradation of Dvl2	SIGNOR-272173
Q9GZR7	Q00987	0	polyubiquitination	up-regulates activity	0.334	MDM2 mediates nonproteolytic polyubiquitylation of the DEAD-Box RNA helicase DDX24. Unexpectedly, however, the polyubiquitylation of DDX24 did not elicit its proteasomal degradation but rather promoted its association with preribosomal ribonucleoprotein (pre-rRNP) processing complexes that are required for the early steps of pre-rRNA processing.	SIGNOR-272845
Q13131	Q9P1W9	0	phosphorylation	down-regulates activity	0.2	Specifically, we found that PIM2 bound to AMPKα1, and directly phosphorylated it on Thr467. Phosphorylation of AMPKα1 by PIM2 led to decreasing AMPKα1 kinase activity, which in turn promoted aerobic glycolysis and tumor growth.	SIGNOR-277471
P24530	P63096	2	binding	up-regulates activity	0.449	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-257053

Q9UPR3

Q9BY41

2

binding

up-regulates quantity by stabilization

0.642

Here, we report that the human ortholog of the yeast ever-shorter telomeres 1B (EST1B) binds HDAC8. This interaction is regulated by protein kinase A-mediated HDAC8 phosphorylation and protects human EST1B (hEST1B) from ubiquitin-mediated degradation.

SIGNOR-272650

P16144

Q99704

2

binding

down-regulates activity

0.2

Integrins also bind to many PTBdomain-containing proteins (Calderwood et al., 2003) – including Dok1 and integrincytoplasmic-domain-associated protein 1 (ICAP1) – and these can compete with talin for binding to integrin and so can impair activation

SIGNOR-257689

P14136

Q9UQM7

0

phosphorylation

down-regulates activity

0.427

On the other hand, GFAP was phosphorylated to approximately 1.9 mol of phosphate/mol of GFAP by Ca(2+)-CaM-dependent protein kinase II, and this phosphorylation did induce disassembly of the filament. Sequential analysis of the purified phosphopeptides revealed that only Ser8 on GFAP was phosphorylated by cdc2 kinase, whereas Ser13, Ser17, Ser34, and Ser389 on GFAP were phosphorylated by Ca(2+)-CaM-dependent protein kinase II.

SIGNOR-250626

Q9Y5I2

Q9Y5G5

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-265702

P04899

P61073

2

binding

up-regulates activity

0.484

Using this model, we have reported that CXCL12 activates Gi1, Gi2, or Gi3 heterotrimeric G proteins in a concentration-dependent manner

SIGNOR-278103

Q5SQI0

Q6PEY2

1

acetylation

up-regulates quantity by stabilization

0.267

Alpha-Tubulin acetyltransferase (alphaTAT1) is the major α-tubulin lysine-40 (K40) acetyltransferase in mammals, nematodes, and protozoa, and its activity plays a conserved role in several microtubule-based processes.|The tubulin subunits of microtubules are acetylated, and lysine-40 (K40) of the alpha-tubulin subunit has been identified as an important conserved site of microtubule acetylation (6–8). This modification is considered a hallmark of stable, long-lived microtubules

SIGNOR-272248

Q12857

Q9Y6N7

1

transcriptional regulation

up-regulates quantity

0.2

For example, within the NFI targetome, we identified 6 collagen genes, 13 genes encoding potassium channel or glutamate receptor subunits and a range of factors related to axon guidance (e.g. Slit1, Robo1, Epha4, Epha5, Epha8)

SIGNOR-268893

P49840

Q9NZQ7

1

phosphorylation

down-regulates quantity by destabilization

0.2

We find EGFR inhibitors promote PD-L1 ubiquitination and proteasomal degradation following GSK3α-mediated phosphorylation of Ser279/Ser283. We identify ARIH1 as the E3 ubiquitin ligase responsible for targeting PD-L1 to degradation.

SIGNOR-277552

Q9Y5G8

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-265717

P48058

P17612

0

phosphorylation

up-regulates

0.429

We found that pka phosphorylation of the ampa receptor subunits glur4 and glur1 directly controlled the synaptic incorporation of ampa receptors in organotypic slices from rat hippocampus.

SIGNOR-97550

Q96G30

P32245

2

binding

down-regulates activity

0.504

We report that MRAP and MRAP2 can interact with all 5 MCRs. This interaction results in MC2R surface expression and signaling. In contrast, MRAP and MRAP2 can reduce MC1R, MC3R, MC4R, and MC5R responsiveness to [Nle4,D-Phe7]alpha-melanocyte-stimulating hormone (NDP-MSH). MRAP and MRAP2 can reduce the surface expression of MC4R and also the signaling of this receptor. we observed a significant decrease in the cell-surface expression of MC4R and MC5R in the presence of MRAP and MRAP2. It is interesting that MRAP and MRAP2 have opposite effects in the modulation of different MCR family members.

SIGNOR-252363

Q9H0E2

Q9NPH3

2

binding

down-regulates activity

0.638

Binding of IL-1 to its receptor results in rapid assembly of a membrane-proximal signalling complex that consists of two different receptor chains (IL-1Rs), IL-1RI and IL-1RAcP, the adaptor protein MyD88, the serine/threonine kinase IRAK and a new protein, which we have named Tollip. Here we show that, before IL-1β treatment, Tollip is present in a complex with IRAK, and that recruitment of Tollip–IRAK complexes to the activated receptor complex occurs through association of Tollip with IL-1RAcP. Co-recruited MyD88 then triggers IRAK autophosphorylation, which in turn leads to rapid dissociation of IRAK from Tollip (and IL-1Rs)

SIGNOR-251979

Q8IV61

Q04759

0

phosphorylation

up-regulates

0.328

Activation of rasgrp3 by phosphorylation of thr-133 is required for b cell receptor-mediated ras activation. our data suggest that pkc, after being activated by diacylglycerol, phosphorylates rasgrp3, thereby contributing to its full activation.

SIGNOR-130490

Q9Y6Y9

P09429

2

binding

up-regulates activity

0.63

Here we demonstrate that the extracellular TLR4 adaptor, myeloid differentiation factor 2 (MD-2), binds specifically to the cytokine-inducing disulfide isoform of HMGB1, to the exclusion of other isoforms. Using MD-2-deficient mice, as well as MD-2 silencing in macrophages, we show a requirement for HMGB1-dependent TLR4 signaling.

SIGNOR-252058

Q9HCX4

Q13976

0

phosphorylation

up-regulates activity

0.2

In vitro and in vivo kinase assays have revealed that cGK-Iα phosphorylates mouse TRPC7 but not mouse TRPC3. Site-directed mutagenesis analysis revealed that TRPC7 was phosphorylated by cGK-Iα at threonine 15. Phosphorylation of TRPC7 significantly suppressed carbachol-induced calcium influx and CREB phosphorylation. These data indicate that cGK-Iα interacts with and phosphorylates TRPC7, contributing to the quick and accurate regulation of calcium influx and CREB phosphorylation.

SIGNOR-263184

Q9BXM7

P62987

1

phosphorylation

up-regulates

0.385

Here we report that ubiquitin is the genuine substrate of PINK1. PINK1 phosphorylated ubiquitin at Ser 65 both in vitro and in cells, and a Ser 65 phosphopeptide derived from endogenous ubiquitin was only detected in cells in the presence of PINK1 and following a decrease in mitochondrial membrane potential.

SIGNOR-270342

P01266

P27695

0

transcriptional regulation

up-regulates quantity by expression

0.2

In co-transfection experiments, Ref-1 increases the Pax-8 activating effect on thyroglobulin promoter.

SIGNOR-271694

O15273

P49841

0

phosphorylation

down-regulates quantity by destabilization

0.2

GSK-3beta phosphorylates FBXL21 and TCAP to activate FBXL21-mediated, phosphodegron-dependent TCAP degradation.|These results show direct GSK-3beta phosphorylation of TCAP S157 and FBXL21 T33 sites.

SIGNOR-264852

Q13464

P61586

2

binding

up-regulates activity

0.81

Planar cell polarity (pcp) signalling triggers activation of the small gtpases rhoa and rac1, which in turn activate rho kinase (rock) and jun-n-terminal kinase (jnk), respectively, leading to actin polymerization and microtubule stabilization.

SIGNOR-199542

P12830

Q15139

0

phosphorylation

up-regulates

0.451

Our study has identified e-cadherin as a novel substrate of pkd1, and phosphorylation of e-cadherin by pkd1 is associated with increased cellular aggregation and decreased cellular motility in prostate cancer.

SIGNOR-133856

O43896

Q9NRW1

1

relocalization

up-regulates quantity

0.2

Here, we identify Bicaudal-D-related protein 1 (BICDR-1) as an effector of the small GTPase Rab6 and key component of the molecular machinery that controls secretory vesicle transport in developing neurons. BICDR-1 interacts with kinesin motor Kif1C, the dynein/dynactin retrograde motor complex, regulates the pericentrosomal localization of Rab6-positive secretory vesicles and is required for neural development in zebrafish. In young neurons, BICDR-1 accumulates Rab6 secretory vesicles around the centrosome, restricts anterograde secretory transport and inhibits neuritogenesis. Later during development, BICDR-1 expression is strongly reduced, which permits anterograde secretory transport required for neurite outgrowth. These results indicate an important role for BICDR-1 as temporal regulator of secretory trafficking during the early phase of neuronal differentiation.

SIGNOR-266878

Q9HD90

O00712

0

transcriptional regulation

up-regulates quantity

0.2

For example, within the NFI targetome, we identified 6 collagen genes, 13 genes encoding potassium channel or glutamate receptor subunits and a range of factors related to axon guidance (e.g. Slit1, Robo1, Epha4, Epha5, Epha8)

SIGNOR-268898

Q12913

P08581

1

dephosphorylation

down-regulates activity

0.608

When co-expressed in 293 cells, the full-length substrate-trapping mutant form of DEP-1 formed a stable complex with the chimeric receptor colony stimulating factor 1 (CSF)-Met and wild type DEP-1 dephosphorylated CSF-Met. Furthermore, we observed that DEP-1 preferentially dephosphorylated a Gab1 binding site (Tyr(1349)) and a COOH-terminal tyrosine implicated in morphogenesis (Tyr(1365)),

SIGNOR-248702

O14641

2

binding

up-regulates activity

0.2

Dix domain of dvl2 mediates dynamic polymerization, which is essential for the signaling activity of dvl2.

SIGNOR-155224

P27361

P35236

1

phosphorylation

up-regulates activity

0.693

First, Erk phosphorylates HePTP at residues Thr45 and Ser72. Second, HePTP dephosphorylates Erk at PTyr185.|

SIGNOR-249475

Q13315

P20823

1

phosphorylation

up-regulates

0.256

Serine 249 phosphorylation by atm protein kinase regulates hepatocyte nuclear factor-1_ transactivation

SIGNOR-205087

P06241

P11912

1

phosphorylation

up-regulates activity

0.596

Lyn and Fyn phosphorylated the CD79a cytoplasmic portion of the fusion proteins well, with >80% of phosphorylation occurring at Y182. CD79a and CD79b function as transducers of B cell antigen receptor signals via a cytoplasmic sequence, termed the immunoreceptor tyrosine-based activation motif (ITAM).

SIGNOR-251153

Q9BT67

P46934

1

relocalization

up-regulates activity

0.589

Ndfip1 is primarily localized in the Golgi apparatus where it recruits Nedd4-2 to mediate the degradation of mature hERG proteins during channel trafficking to the plasma membrane. Although Ndfip2 directs Nedd4-2 to the Golgi apparatus, it also recruits Nedd4-2 to the multivesicular bodies (MVBs), which may impair MVB function and impede the degradation of mature hERG proteins mediated by Nedd4-2.

SIGNOR-260997

Q92769

Q5VUA4

2

binding

up-regulates activity

0.329

A central domain of TZF is required for repression of AR-mediated transactivation. The results revealed that HDAC2 was coimmunoprecipitated with TZF (Fig. 6A), These results indicate that AR, TZF and HDAC2 form a ternary complex during the repression of AR-mediated transactivation.

SIGNOR-261188

P43119

P38405

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-256949

Q9H3R0

P10275

2

binding

up-regulates activity

0.2

JMJD2C was found to be co-localized with AR and LSD1 in the epithelium of prostate carcinoma and normal prostate cells. For the detailed mechanism, JMJD2C, AR and LSD1 assembled on the chromatin to remove the methyl groups from mono-, di- and trimethylated H3K9. Importantly, JMJD2C specifically removed the demethylation of the trimethyl H3K9 marks and modulated the transcriptional activity of AR. Moreover, JMJD2C cooperated with LSD1 and activated AR-mediated gene expression via decreasing H3K9me3 at the promoter of AR targeting genes KLK2 and PSA.

SIGNOR-263879

P09341

P17612

2

binding

down-regulates

0.2

As pka suppresses the activity of gli, smo might use the stimulation of pi3k by galfai and gbetagamma subu- nits to block pka in cells that have high levels of camp.

SIGNOR-152594

Q03113

P32238

2

binding

up-regulates activity

0.25

Our studies indi-cate that CCK-A receptors inserted into NIH3T3 cellsalso activate RhoA through G12/13

SIGNOR-278063

P03209

Q14653

1

transcriptional regulation

down-regulates quantity by repression

0.2

EBV Rta selectively down-regulates the expression of IRF3 and IRF7, the main regulators of the Type I IFNs.

SIGNOR-266644

Q53ET0

Q9Y2K2

0

phosphorylation

down-regulates activity

0.635

We found that QSK and SIK phosphorylated TORC2 at Ser171 as well as at least two additional residues, namely Ser70 and Ser348|QIK also phosphorylates the CREB co-activator TORC2, in unstimulated cells, to sequester it in the cell cytoplasm, thereby inhibiting CREB-dependent gene-expression

SIGNOR-249170

P42681

Q13094

1

phosphorylation

up-regulates

0.728

Resting lymphocyte kinase (rlk/txk) targets lymphoid adaptor slp-76 in the cooperative activation of interleukin-2 transcription in t-cells. In this study, we report that rlk phosphorylates slp-76 at its n-terminal yesp/yepp sites. A third tyrosine within the amino-terminal region (y145) appears to be the most important for optimal slp-76 function

SIGNOR-44669

P04637

Q07812

2

binding

up-regulates

0.753

P53 also accumulates in the cytoplasm where it directly activates bax to promote mitochondrial outer membrane permeabilization.

SIGNOR-140242

P33981

P21589

1

phosphorylation

up-regulates activity

0.2

Intermolecular NTE phosphorylation by Mps1 requires a topology in which sites proximal to the NTE interact with the active Mps1 in order to promote phosphorylation.

SIGNOR-280157

O75030

P20265

0

transcriptional regulation

up-regulates quantity by expression

0.437

We further demonstrate that BRN2 induces MITF transcription through a binding site located at 50/36 of the MITF promoter

SIGNOR-249616

P08247

Q05193

2

binding

up-regulates activity

0.333

The GTPase dynamin I is required for synaptic vesicle (SV) endocytosis. Our observation that dynamin binds to the SV protein synaptophysin in a Ca2+-dependent fashion suggested the possibility that a dynamin/synaptophysin complex functions in SV recycling.

SIGNOR-264119

O43524

P27361

0

phosphorylation

down-regulates quantity by destabilization

0.595

Phosphorylation of foxo3a by erk1/2 at residues ser 294, ser 344 and ser 425 increases foxo3amdm2 interaction and enhances foxo3a degradation via an mdm2-dependent ubiquitin-proteasome pathway

SIGNOR-184569

P18564

O14713

2

binding

down-regulates activity

0.287

Integrins also bind to many PTBdomain-containing proteins (Calderwood et al., 2003) – including Dok1 and integrincytoplasmic-domain-associated protein 1 (ICAP1) – and these can compete with talin for binding to integrin and so can impair activation

SIGNOR-257662

Q9BQQ3

P28482

0

phosphorylation

down-regulates activity

0.27

Here we show that GRASP65 is phosphorylated on serine 277 in interphase cells, and this is strongly enhanced in response to the addition of serum or epidermal growth factor. This is directly mediated by ERK suggesting that GRASP65 has some role in growth factor signal transduction. These results argue against Ser-277 phosphorylation alone causing the dissolution of GRASP65 oligomers and cisternal unstacking, although it may make a significant contribution to these events.

SIGNOR-262841

Q16875

Q9P1W9

0

phosphorylation

up-regulates quantity by stabilization

0.2

We used biochemical methods to determine that PIM2 can directly bind and change the phosphorylation of PFKFB3 at Ser478 to enhance PFKFB3 protein stability through the ubiquitin-proteasome pathway.

SIGNOR-277554

P08559

P54646

0

phosphorylation

up-regulates activity

0.2

AMPKα phosphorylates PDHA subunit on Ser295 and Ser314 to activate PDH complex

SIGNOR-276838

O75030

P16220

0

transcriptional regulation

up-regulates quantity by expression

0.633

Therefore, the molecular steps linking cAMPto melanogenesis up-regulation appear currently better elucidated. cAMP activates PKA, and PKA phosphorylates and activates CREB which, when activated, binds to the CRE domain present in the microphthalmia promoter,thereby up-regulating its transcription.

SIGNOR-249619

O00327

P37231

0

transcriptional regulation

up-regulates quantity by expression

0.399

Rosiglitazone treatment induced aortic expression of Bmal1 mRNA, and ChIP and promoter assays revealed that Bmal1 is a direct PPARgamma target gene. These studies have uncovered a role for vascular PPARgamma as a peripheral factor participating in regulation of cardiovascular rhythms.

SIGNOR-268026

P31749

P98170

1

phosphorylation

up-regulates quantity by stabilization

0.618

Akt, including akt1 and akt2, interacts with and phosphorylates x-linked inhibitor of apoptosis protein (xiap) at residue serine-87 in vitro and in vivo. Phosphorylation of xiap by akt protects xiap from ubiquitination and degradation in response to cisplatin.

SIGNOR-119488

Q15276

P20339

2

binding

up-regulates

0.928

We have previously shown that rab5, which regulates various steps of transport along the early endocytic pathway, is activated by a complex consisting of rabex-5, a rab5 nucleotide exchange factor, and the effector rabaptin-5.

SIGNOR-109352

Q9HC56

P05556

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.

SIGNOR-269035

O95837

O60755

2

binding

up-regulates activity

0.289

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-257206

P17181

P01574

2

binding

up-regulates

0.867

Ifn-alpha, ifn-beta, and ifn-omega, induce somewhat different cellular effects but act through a common receptor complex, ifnar, composed of subunits ifnar-1 and ifnar-2.

SIGNOR-104663

P47710

Q04206

1

phosphorylation

up-regulates

0.2

Phosphorylation of serine 529 of p65 is mediated by casein kinase ii, but is prevented in nonstimulated cells by the interaction with ikba

SIGNOR-171222

Q15303

Q96JA1

0

ubiquitination

down-regulates

0.608

We report upregulation of lrig1 transcript and protein upon egf stimulation, and physical association of the encoded protein with the four egfr orthologs of mammals. Upregulation of lrig1 is followed by enhanced ubiquitylation and degradation of egfr. The underlying mechanism involves recruitment of c-cbl, an e3 ubiquitin ligase that simultaneously ubiquitylates egfr and lrig1 and sorts them for degradation.

SIGNOR-139954

Q9HA47

Q13315

0

phosphorylation

down-regulates quantity by destabilization

0.2

ATM also phosphorylates UCK1 at S145, significantly enhancing the KLHL2-UCK1 complex formation|We demonstrated that the ubiquitin E3 ligase KLHL2 interacted with UCK1 and mediated its polyubiquitination at the K81 residue and degradation.

SIGNOR-275963

P12931

P46934-4

1

phosphorylation

up-regulates activity

0.417

Activation of c-Src by epidermal growth factor (EGF) also promoted tyrosine phosphorylation and enhanced the activity of NEDD4.

SIGNOR-276860

P26599

P01106

0

transcriptional regulation

up-regulates quantity by expression

0.438

We also demonstrate that the oncogenic transcription factor c-Myc upregulates transcription of PTB, hnRNPA1 and hnRNPA2,

SIGNOR-268689

P15976

Q01196

2

binding

up-regulates activity

0.643

We and others have previously shown that RUNX1 and GATA-1 physically interact and cooperate in the activation of megakaryocytic promoters such as alpha IIb integrin and glycoprotein Ibalpha. In particular, we will elaborate on recent data which suggest that GATA-1 targets RUNX1 for modification, in particular phosphorylation by cyclin-dependent kinases. Furthermore, targeting of RUNX1 by GATA-1 for phosphorylation may convert RUNX1 from a repressor to an activator. This is a potential mechanism of transcriptional cooperation and may be an essential step in megakaryocytic differentiation.

SIGNOR-254194

Q92823

P54762

0

phosphorylation

up-regulates activity

0.411

EphB receptors were found to induce phosphorylation of NrCAM on the tyrosine residue within the FIGQY ankyrin binding motif, inhibiting ankyrin recruitment. Furthermore, NrCAM phospho-FIGQY levels in the SC were decreased in EphB1/3 and EphB1/2/3 null mice and increased in mutant mice overexpressing constitutively active EphB2 kinase.

SIGNOR-262862

Q16552

Q9BYH8

0

transcriptional regulation

up-regulates quantity by expression

0.381

In cooperation with RORγt and RORα, IκBζ enhances Il17a expression by binding directly to the regulatory region of the Il17a gene.

SIGNOR-266210

Q02763

O95841

2

binding

up-regulates

0.506

In experiments with human endothelial cell lines, ang3 was identified as an antagonist of tie2 and ang4 was identified as an agonist of tie2.

SIGNOR-127354

O75030

P28482

0

phosphorylation

down-regulates

0.705

The current study reveals that c-kit signaling triggers two phosphorylation events on mi, which up-regulate transactivation potential yet simultaneously target mi for ubiquitin-dependent proteolysis. The specific activation/degradation signals derive from mapk/erk targeting of serine 73the results suggested that s1p reduced melanin synthesis via s1p(3) receptor-mediated erk and rsk-1 activation, and subsequent mitf dual phosphorylation and degradation.

SIGNOR-75030

O15530

P31751

1

phosphorylation

up-regulates activity

0.732

Akt1 and akt2 are phosphorylated and activated by the protein kinase pdk1 at thr-308 or thr-309, respectively, in the activation t-loop, and further activation occurs through phosphorylation at ser-473 or ser-474, respectively. Pdk1 phosphorylates akt-2 at thr 309 in the catalytic domain, leading to enzymatic activation.

SIGNOR-134485

Q16665

P46531

0

relocalization

up-regulates activity

0.649

The notch intracellular domain interacts with hif-1alpha and hif-1alpha is recruited to notch-responsive promoters upon notch activation under hypoxic conditions.

SIGNOR-141315

P06493

P49821

1

phosphorylation

up-regulates activity

0.2

Here, we show that a fraction of cyclin B1/Cdk1 proteins localizes to the matrix of mitochondria and phosphorylates a cluster of mitochondrial proteins, including the complex I (CI) subunits in the respiratory chain. Cyclin B1/Cdk1-mediated CI phosphorylation enhances CI activity, whereas deficiency of such phosphorylation in each of the relevant CI subunits results in impairment of CI function.|These results were confirmed by generating phosphorylation defective forms of the five CI subunits through substitutions of S/T residues with Alanine (A) on either Cdk1 optimal or minimal consensus motifs (T383 on NDUFV1, S105 on NDUFV3, S364 on NDUFS2, S55/S29/T5 on NDUFB6, and T142/T120 on NDUFA12). The mutation of Cdk1 consensus motifs severely diminished their phosphorylation

SIGNOR-275594

P53350

O15350

1

phosphorylation

down-regulates

0.51

P73-mediated transcriptional activity is negatively regulated by polo-like kinase 1. tap73 is phosphorylated by this kinase on threonine-27 (thr-27) within the ta domain.

SIGNOR-178253

P21796

Q96A26

2

binding

up-regulates activity

0.2

HGTD-P was coprecipitated with VDAC but not with ANT or cyclophilin D (Fig. 7A, left upper panel).|However, it is not clear at present whether HGTD-P participates directly in channel formation in association with VDAC or modulates its channel-forming activity.

SIGNOR-260293

Q13627

Q05193

1

phosphorylation

down-regulates

0.416

Mnb/dyrk1a was shown to phosphorylate dynamin 1 and alter its interactions with several sh3 domain-containing endocytic accessory proteins.Phosphorylation At s795 and s857 was confirmed in full-length dynamin 1, and s857 was subsequently determined to be the major mnb/dyrk1a phosphorylation site in vitro. Phosphorylation at s857 was demonstrated to be the basis for altering the binding of dynamin 1 to amphiphysin 1 and grb 2 by site-directed mutants mimicking phosphorylation.

SIGNOR-127440

O00399

P53350

2

binding

up-regulates activity

0.374

Here, we show that the p27/p25 heterodimer undergoes mitotic phosphorylation by cyclin‐dependent kinase 1 (Cdk1) at a single site, p27 Thr186, to generate an anchoring site for polo‐like kinase 1 (Plk1) at kinetochores.

SIGNOR-264798

Q99538

Q6R6M4

0

deubiquitination

down-regulates quantity by destabilization

0.309

We demonstrate that TRAF6 ubiquitinates the proform of AEP through K63-linked polyubiquitin, reversible by USP17, and forms a complex with HSP90α to subsequently promote pro-AEP intracellular stability as well as secretion. We now present evidence that AEP is a substrate for TRAF6 ubiquitination, resulting in AEP/TRAF6/HSP90α complex formation.

SIGNOR-272854

Q05682

P17252

0

phosphorylation

down-regulates

0.357

Phosphorylation of both intact caldesmon and of its c-terminal fragment (658c), containing residues 658-756, significantly decreased their ability to inhibit acto-heavy meromyosin atpase.

SIGNOR-36792

O94782

Q8WYQ5

1

deubiquitination

up-regulates quantity by stabilization

0.2

Specifically, radiation-induced ATM-dependent phosphorylation of DGCR8 at serine 677 facilitates USP51 to bind, deubiquitinate, and stabilize DGCR8, which leads to the recruitment of DGCR8 and DGCR8's binding partner RNF168 to MDC1 and RNF8 at DSBs.

SIGNOR-277308

P12931

Q16832

1

phosphorylation

up-regulates

0.38

Here, using baculoviral co-expression of the ddr2 cytosolic domain and src, we show that src targets three tyrosine residues (tyr-736, tyr-740, and tyr-741) in the activation loop of ddr2 for phosphorylation. This phosphorylation by src stimulates ddr2 cis-autophosphorylation of additional tyrosine residues.

SIGNOR-140767

P14921

P49841

0

phosphorylation

up-regulates quantity by stabilization

0.2

Here, we show that ETS1 forms a complex with glycogen synthase kinase-3β (GSK3β). Specifically, GSK3β-mediated phosphorylation of ETS1 at threonine 265 and serine 269 promoted protein stability, induced the transcriptional activation of matrix metalloproteinase (MMP)-9, and increased cell migration.

SIGNOR-277560

O95837

Q9HBW0

2

binding

up-regulates activity

0.484

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-257431

Q5T7P8

P05771

0

phosphorylation

up-regulates activity

0.2

We found by site-directed mutagenesis that Thr418 and/or Thr419 in the polybasic region (KKKTTIK) of the C2B domain--a key region for the function of synaptotagmins--are the PKC target that regulates its inhibitory effect on acrosomal exocytosis. Similarly, we showed that Thr284 in the polybasic region of C2A (KCKLQTR) is the target for PKC-mediated phosphorylation in this domain.

SIGNOR-273565

Q96GF1

Q12981

1

polyubiquitination

up-regulates activity

0.533

RNF185 functions as a ubiquitin E3 ligase, enabling BNIP1-p62 interaction. Here we show that human RNF185 is a mitochondrial ubiquitin E3 ligase that regulates selective mitochondrial autophagy in cultured cells. Human BNIP1 colocalizes with RNF185 at mitochondria and is polyubiquitinated by RNF185 through K63-based ubiquitin linkage in vivo. The polyubiquitinated BNIP1 is capable of recruiting autophagy receptor p62, which simultaneously binds both ubiquitin and LC3 to link ubiquitination and autophagy. RNF185 interacts with BNIP1 and ATG5

SIGNOR-271931

Q00535

Q9Y696

1

phosphorylation

up-regulates quantity by stabilization

0.2

These results confirm that CDK5 phosphorylates CLIC4 at serine 108.|We found that activated CDK5 phosphorylated serine 108 in CLIC4, increasing CLIC4 protein stability, and accumulation.

SIGNOR-279451

P01112

Q5VWQ8

0

gtpase-activating protein

down-regulates activity

0.6

The GAP domain of DAB2IP is homologous to other Ras-GAPs, such as GAP120 and neurofibromin (NF1), and can stimulate the GTPase activity of RAS proteins both in vitro and in cancer cell lines. DAB2IP is able to stimulate in vitro and in vivo the GTPase activity of RAS proteins (H-Ras, K-Ras, and N-Ras) facilitating GTP hydrolysis to GDP.

SIGNOR-254745

P19793

P37231

2

binding

up-regulates

0.743

Although the three ppar subtypes are closely related and bind to similar dna response elements as heterodimers with the 9-cis retinoic acid receptor rxr, each subserves a distinct physiology

SIGNOR-105445

Q5UE93

P31749

0

phosphorylation

up-regulates activity

0.45

P84 forms a negative regulatory complex with p110gamma to control PI3Kgamma signalling during cell migration|However, phosphorylation at this site was confirmed using an in vitro kinase assay in which Akt kinase was shown to readily phosphorylate Thr607 using a p84 peptide (Figure 1e), where Thr607 in conjunction with surrounding residues forms an Akt kinase consensus sequence|In contrast, although p84-T607A exhibited basal p110γ dimerisation, this interaction could not be further induced with stimulation

SIGNOR-275722

O15392

P53350

0

phosphorylation

up-regulates

0.583

Thus, we conclude that plk1-mediated phosphorylation of sur at ser20 is critical for accurate chromosome segregation|SUR (survivin)

SIGNOR-170460

P62136

P38398

1

dephosphorylation

down-regulates activity

0.377

Protein kinases involved in the DNA damage checkpoint control, such as ATM, ATR, and hCds1/Chk2, have been shown to phosphorylate and activate BRCA1 upon DNA damage. |Altogether, these results indicate that PP1α specifically dephosphorylates BRCA1 at multiple serine sites, including S988 [12], S1423, and S1524.

SIGNOR-248560

P15884

P35222

2

binding

up-regulates activity

0.69

beta-catenin interacts with the TCF/Lef family transcription factors.

SIGNOR-178042

Q8N726

Q9UHC7

0

polyubiquitination

down-regulates quantity by destabilization

0.366

Biochemical analyses confirmed that MKRN1 targets p14ARF for ubiquitination and subsequent proteasome-dependent degradation.The Skp1-Cul1-F-box-protein44 (SCF(FBXO44)) complex ubiquitinates full-length BRCA1 in vitro.

SIGNOR-272036

Q99986

Q12888

1

phosphorylation

up-regulates

0.399

The kinase vrk1 is activated by dna double strand breaks induced by ionizing radiation (ir) and specifically phosphorylates 53bp1 in serum-starved cells./ Vrk1 knockdown resulted in the defective formation of 53bp1 foci in response to ir both in number and size

SIGNOR-197625

P08069

Q13191

0

ubiquitination

down-regulates quantity by destabilization

0.422

The ubiquitin ligase Cbl-b also ubiquitinated and degraded IGF-IR and inhibited the Akt/ERK-miR-200c-ZEB2 axis, leading to the repression of IGF-I-induced EMT.

SIGNOR-278607

P11166

P27105

2

binding

down-regulates activity

0.527

Similar to the results obtained in the RBC, Glut1 and stomatin immunoprecipitated with each other in lysates of Clone 9 cells. The above results suggest that stomatin is closely associated with Glut1 in the plasma membrane and that overexpression of stomatin results in a depression in the basal rate of glucose transport.

SIGNOR-261278

P43354

P28482

0

phosphorylation

up-regulates

0.395

We have shown that erk2 is a kinase to phosphorylate nurr1 on multiple sites. S126 and t132, which are located near af1 core of nurr1, are dominant sites phosphorylated by erk2. reporter gene assays show that nurr1delta124-133/t185a, an erk2 phospho-site mutant form, could not further increase its transcriptional activity on th promoter, suggesting that nurr1 phosphorylation by erk2 may regulate its transcriptional activity on th promoter.

SIGNOR-157167

Q06830

P06239

0

phosphorylation

down-regulates activity

0.2

Inactivation of peroxiredoxin I by phosphorylation allows localized H(2)O(2) accumulation for cell signaling. To determine whether Prxs are phosphorylated, we subjected recombinant human PrxI and II to an in vitro kinase assay with two nonreceptor PTKs, Lck and Abl, in the presence of [γ-32P]ATP. Both PTKs phosphorylated PrxI and PrxII. Phosphorylation of the wild-type protein was detected, whereas that of the Y194F mutant was not (Figure 1B), indicating that Tyr194 is the only site of tyrosine phosphorylation.

SIGNOR-276277

P00519

Q03468

1

phosphorylation

up-regulates activity

0.271

N-terminal region of CSB interacts with the SH3 domain of c-Abl in vitro and in vivo. In addition, c-Abl kinase phosphorylates CSB at Tyr932. our results suggest that c-Abl interacts with and tyrosine phosphorylates CSB. This interaction may play an important role in the response to oxidative stress, resulting in activation of c-Abl, tyrosine phosphorylation of CSB and more efficient BER of oxidative DNA damage. Tyrosine-phosphorylated CSB may serve as a signal for repair proteins to localize to DNA damage and may help maintain active transcription in the nucleolus.

SIGNOR-251933

Q8WUJ0

Q969H0

2

binding

down-regulates activity

0.346

STYX acts as a direct inhibitor of FBXW7, affecting the cellular levels of its substrates. Furthermore, we find that levels of STYX and FBXW7 are anti-correlated in breast cancer patients,

SIGNOR-251663

P48431

O00308

0

ubiquitination

down-regulates quantity

0.361

Among the four E3 ligases, only WWP2 knockdown was found to increase SOX2 protein levels in GSCs (Fig.\u00a04A).|We first verified that WWP2 ubiquitinates SOX2 in vitro.

SIGNOR-278798

P20396

P23769

0

transcriptional regulation

up-regulates quantity by expression

0.263

The rat prepro-TRH gene is activated by GATA2.

SIGNOR-267259

Q96HE7

Q9BS26

2

binding

up-regulates quantity by stabilization

0.2

Here, we report the functional characterization of a novel UPR-induced ER resident protein (ERp44) that forms mixed disulfides with both hEROs, as well as with partially unfolded Ig subunits.

SIGNOR-261049

P07948

P31995

1

phosphorylation

up-regulates activity

0.2

Fyn and Blk definitely phosphorylate Y-282 in the ITAM of FcgRIIa/c, whereas the non-ITAM tyrosine residue (Y-275) becomes phosphorylated by Syk, as the phosphorylation of double point mutants shows. In addition to these tyrosine residues, Fyn, Blk, and Syk might phosphorylate the most C-terminal tyrosine residue (Y-298) because altering this tyrosine residue together with one of the tyrosine residues clearly shown to be phosphorylated by the respective PTK results in the abrogation of phosphorylation

SIGNOR-262676

O14641

Q96GF1

0

polyubiquitination

down-regulates quantity by destabilization

0.466

The E3 ligase RNF185 negatively regulates osteogenic differentiation by targeting Dvl2 for degradation. Overexpression of RNF185 decreases the exogenous and endogenous level of Dvl2, promotes the ubiquitination and degradation of Dvl2

SIGNOR-272173

Q9GZR7

Q00987

0

polyubiquitination

up-regulates activity

0.334

MDM2 mediates nonproteolytic polyubiquitylation of the DEAD-Box RNA helicase DDX24. Unexpectedly, however, the polyubiquitylation of DDX24 did not elicit its proteasomal degradation but rather promoted its association with preribosomal ribonucleoprotein (pre-rRNP) processing complexes that are required for the early steps of pre-rRNA processing.

SIGNOR-272845

Q13131

Q9P1W9

0

phosphorylation

down-regulates activity

0.2

Specifically, we found that PIM2 bound to AMPKα1, and directly phosphorylated it on Thr467. Phosphorylation of AMPKα1 by PIM2 led to decreasing AMPKα1 kinase activity, which in turn promoted aerobic glycolysis and tumor growth.

SIGNOR-277471

P24530

P63096

2

binding

up-regulates activity

0.449

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-257053