GleghornLab/Signor_processed · Datasets at Hugging Face

IdA stringlengths 6 21	IdB stringlengths 6 21	mechanism stringclasses 40 values	effect stringclasses 10 values	score float64 0.1 0.99 ⌀	sentence stringlengths 10 1.63k ⌀	signor_id stringlengths 12 14
Q12879	Q00535	phosphorylation	up-regulates activity	0.525	Here, we demonstrate that cyclin dependent kinase-5 (Cdk5) associates with and phosphorylates NR2A subunits at Ser-1232 in vitro and in intact cells. Moreover, we show that roscovitine, a selective Cdk5 inhibitor, blocks both long-term potentiation induction and NMDA-evoked currents in rat CA1 hippocampal neurons. These results suggest that Cdk5 plays a key role in synaptic transmission and plasticity through its up-regulation of NMDARs.	SIGNOR-250666
O43150	Q14289	phosphorylation	up-regulates activity	0.525	Tyrosine phosphorylation of Pap by Pyk2 or Src kinases. We have identified a new Pyk2 binding protein designated Pap. Pap is a multidomain protein composed of an N-terminal alpha-helical region with a coiled-coil motif, followed by a pleckstrin homology domain, an Arf-GAP domain, an ankyrin homology region, a proline-rich region, and a C-terminal SH3 domain. We demonstrate that Pap forms a stable complex with Pyk2 and that activation of Pyk2 leads to tyrosine phosphorylation of Pap in living cells.	SIGNOR-269704
P10636	P53778	phosphorylation	down-regulates activity	0.525	Phosphorylation of tau by SAPK3 and SAPK4 markedly reduced the ability of tau to promote microtubule assembly. SAPK3 (also called ERK6 and p38) and SAPK4 phosphorylate recombinant tau protein at multiple Ser/Thr-Pro sites that are hyperphosphorylated in PHF-tau, with SAPK4 and SAPK3 being the most effective.	SIGNOR-250087
P04049	Q9BRX9	binding	up-regulates	0.525	Morg1 specifically associates with several components of the erk pathway, including mp1, raf-1, mek, and erk, and stabilizes their assembly into an oligomeric complex.	SIGNOR-124476
Q06124	P36888	binding	up-regulates activity	0.525	Y599 was additionally found to interact with the protein tyrosine phosphatase SHP2 in a phosphorylation-dependent manner. As Y599F-Flt3-32D was unable to associate with and to phosphorylate SHP2 and since silencing of SHP2 in WT-Flt3-expressing cells mimicked the Y599F-Flt3 phenotype, we hypothesize that recruitment of SHP2 to pY599 contributes to FL-mediated Erk activation and proliferation.	SIGNOR-245057
O15503	Q9UKV5	ubiquitination	down-regulates quantity by destabilization	0.525	The ubiquitination of Insig-1 is mediated by gp78 and regulated by sterols.\|gp78 mediates the degradation of Insig-1 and Insig-2.	SIGNOR-278567
O14727	Q96GX9	binding	down-regulates	0.525	Taken together, these results suggest that apip functions to inhibit muscle ischemic damage by binding to apaf-1 in the apaf-1/caspase-9 apoptosis pathway.	SIGNOR-126797
P61586	O15013	guanine nucleotide exchange factor	up-regulates activity	0.525	We therefore developed a screening-compatible live-cell imaging assay, using FRET-based biosensors for the prototype GTPases RHOA, RAC1 and CDC4215,19,20 (Extended Data Fig. 2 and Supplementary Note 1)\|We found catalytic activities for 45/75 RhoGEFs and 48/63 RhoGAPs\| Our data thus not only reveal extensive promiscuity among regulators, but also that the inactivating RhoGAPs are less selective than the activating RhoGEFs (p-value=0.02)(Supplementary Table 2).	SIGNOR-260535
P48454	P0DP25	binding	up-regulates	0.525	Calcium-bound calmodulin associates with calcineurin (cn), releasing the phosphatase from the repressive effects on an autoinhibitory domain.	SIGNOR-266340
Q14393	P38435	carboxylation	up-regulates activity	0.525	Thus, vitamin K acts as a cofactor for GGCX via the vitamin K cycle and exerts physiological effects through its regulation of VKDPs [29]. More than 20 VKDPs have been found. Osteocalcin promotes bone formation, and blood coagulation factors II, VII, IX, and X activate blood coagulation. Matrix Gla protein suppresses cardiovascular calcification, and brain-expressed Gas 6 promotes neural differentiation [29]. GGCX is an enzyme that converts glutamic acid (Glu) residues to Gla residues, so that the Gla-containing proteins can exert various physiological actions such as blood coagulation and bone formation.	SIGNOR-265923
Q01851	Q99578	binding	up-regulates activity	0.525	we describe the evidence for a functional interaction between Brn-3a and Rin and demonstrate the role of Rin in modulating the activation of the Brn-3a regulated egr-1 promoter by the N-terminal domain of Brn-3a.	SIGNOR-224546
P55011	Q9BYP7	phosphorylation	up-regulates activity	0.525	We have shown that with-no-lysine kinase 3 (WNK3) possesses several properties that suggest it could be the Cl−/volume-sensitive regulatory kinase that, in association with protein phosphatases, reciprocally modifies the phosphorylation/dephosphorylation states of the SLC12 proteins and thus their activities\|WNK3 activates NKCC1/2 and NCC and inhibits the KCCs	SIGNOR-264625
Q01970	Q13237	phosphorylation	down-regulates activity	0.525	PKG can directly phosphorylate PLC-beta2 and PLC-beta3 in vitro with purified proteins and in vivo with metabolic labeling. Phosphorylation of PLC-beta leads to the inhibition of G-protein-activated PLC-beta3 activity by 50-70% in COS-7 cell transfection assays. By using phosphopeptide mapping and site-directed mutagenesis, we further identified two key phosphorylation sites for the regulation of PLC-beta3 by PKG (Ser(26) and Ser(1105)). Mutation at these two sites (S26A and S1105A) of PLC-beta3 completely blocked the phosphorylation of PLC-beta3 protein catalyzed by PKG.	SIGNOR-249078
Q92934	P31751	phosphorylation	down-regulates	0.525	Ser-136 is the major phosphoacceptor site for akt;akt can weakly phosphorilate ser-155.	SIGNOR-81114
Q96BI1	Q9H6Y7	polyubiquitination	down-regulates quantity by destabilization	0.525	Here, we present evidences indicating that RING105, a novel conserved RING-finger protein with a PA (protease-associated) domain and a PEST sequence, is a ubiquitin ligase for TSSC5 that can function in concert with the ubiquitin-conjugating enzyme UbcH6. The polyubiquitin target site on TSSC5 was mapped to a region in the 6th hydrophilic loop.	SIGNOR-271551
P33076	P14316	transcriptional regulation	up-regulates quantity by expression	0.525	In addition to IRF-1, IRF-2, another member of the IRF family, also activates the human CIITA type IV promoter, and IRF-2 cooperates with IRF-1 to activate the promoter in transient transfection assays.	SIGNOR-271681
P09874	P78527	phosphorylation	down-regulates activity	0.525	Therefore, through its interaction with Ku70/80 in the presence of dsDNA , DNA-PK phosphorylated PARP-1 at its catalytic CTD.	SIGNOR-280093
P23769	P31749	phosphorylation	down-regulates	0.524	We show that insulin induces gata2 phosphorylation on serine 401 in a pi-3k/akt-dependent manner. Insulin-dependent phosphorylation of serine 401 impairs gata2 translocation to the nucleus and its dna binding activity	SIGNOR-135614
P04637	P12931	phosphorylation	down-regulates quantity by destabilization	0.524	We recently found that ISGylation of the p53 tumor suppressor is an important novel mechanism to control its stability. Here we identified that Isg15-dependent regulation of p53 can be enhanced by different oncogenes. We further show that the Src-mediated phosphorylation of p53 on Tyr126 and Tyr220 has a positive effect on p53 ISGylation by enhancing Herc5 binding.	SIGNOR-276668
P84022	Q14974	relocalization	up-regulates	0.524	Here we show that the isolated smad 3 mh1 domain displays significant specific binding to importin beta. we propose that activation of all of the pathway-specific smad proteins (smads 1, 2, 3, 5, 8, and 9) exposes the conserved nls motif, which then binds directly to importin beta and triggers nuclear translocation.	SIGNOR-78191
Q12802	Q03113	binding	up-regulates activity	0.524	These data suggest that G12 is an upstream activator of AKAP-Lbc in the Rho signaling pathway.	SIGNOR-278882
P00533	Q96CW1	relocalization	down-regulates	0.524	The removal of the epidermal growth factor receptor (egfr) from the cell surface by endocytosis is triggered by receptor activation, but many facets of egfr trafficking remain unresolvedthe ap-2 complex is involved in the internalization of activated egfr.	SIGNOR-185124
Q9H2U1	Q99836	binding	up-regulates activity	0.524	We further showed that both DHX9 and DHX36 are localized within the cytosol and are directly bound to the Toll-interleukin receptor domain of MyD88 via their helicase-associated domain 2 and DUF domains. This study demonstrates that DHX9/DHX36 represent the MyD88-dependent DNA sensors in the cytosol of pDCs and suggests a much broader role for DHX helicases in viral sensing.	SIGNOR-260956
P55011	O95747	phosphorylation	up-regulates	0.524	The secretory na-k-cl cotransporter nkcc1 is activated by secretagogues through a phosphorylation-dependent mechanism. three phosphoacceptor sites were identified in the n-terminal domain of the protein (at thr184, thr189, and thr202) none of these residues occurs in the context of strong consensus sites for known ser/thr kinases.	SIGNOR-90927
Q16665	Q9Y2N7	transcriptional regulation	down-regulates quantity by repression	0.524	None of the long HIF-3α variants was capable of efficient induction of an HRE reporter in overexpression experiments, but instead inhibited the transcriptional activation of the reporter by HIF-1 and HIF-2.	SIGNOR-261615
P38405	P29275	binding	up-regulates activity	0.524	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-256910
P46527	P27348	binding	down-regulates	0.524	14-3-3_, 14-3-3_, and 14-3-3_ (but not 14-3-3_ and 14-3-3_) could form a complex with p27kip1 / we discovered that akt-mediated p27kip1phosphorylation directly induces p27kip1binding to 14-3-3 and cytoplasmic localization through phosphorylating the newly identified thr198residue.	SIGNOR-88300
Q13043	P26927	phosphorylation	up-regulates	0.524	We directly show that okadaic acid induces phosphorylation in the activation loop of mst, and, once phosphorylated, mst is rapidly translocated to the nucleus. when thr183 in mst1 was mutated to ala, no band could be detected by oa treatment,2 indicating that thr183 was the site of phosphorylation.	SIGNOR-114289
Q9H1A4	P53350	phosphorylation	up-regulates	0.524	Our analysis revealed an unexpected and unprecedented complexity of mitotic phosphorylation sites and suggests that other kinases than cdk1 and plk1 also contribute to apc phosphorylation.	SIGNOR-119881
P63096	P30872	binding	up-regulates activity	0.524	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-256679
Q13950	P56524	deacetylation	down-regulates activity	0.524	HDAC4 and HDAC5 deacetylate Runx2, allowing the protein to undergo Smurf-mediated degradation	SIGNOR-227547
Q01196	Q03112	binding	down-regulates activity	0.524	The results that we present here support this model and show that EVI1 interacts with and inhibits RUNX1. As for GATA1, EVI1 seems to repress RUNX1 function by interacting specifically with its DNA-binding domain Runt, leading to destabilization and dissolution of the DNA-RUNX1 complex.	SIGNOR-255716
Q05397	Q14289	phosphorylation	up-regulates	0.524	Activated rock phosphorylates fak on ser732, which is essential for phosphorylation of tyr407 and for cell migration. We further show that pyk2 is activated by vegf-induced clustering of integrin v 3 and is responsible for the phosphorylation of tyr407.	SIGNOR-147070
P56817	Q9UK22	binding	down-regulates quantity by destabilization	0.523	SCFFbx2-E3-ligase-mediated degradation of BACE1 attenuates Alzheimer’s disease amyloidosis and improves synaptic function. We report that the SCF(Fbx2) -E3 ligase is involved in the binding and ubiquitination of BACE1 via its Trp 280 residue of F-box-associated domain. we found that overexpression of Fbx2 in the primary cortical and hippocampal neurons derived from Tg2576 transgenic mice significantly promoted BACE1 degradation and reduced β-amyloid production.	SIGNOR-271904
P08151	P23443	phosphorylation	up-regulates	0.523	In this study, we found that an activated mtor/s6k1 pathway promotes gli1 transcriptional activity and oncogenic function through s6k1-mediated gli1 phosphorylation at ser84, which releases gli1 from its endogenous inhibitor, sufu.	SIGNOR-196756
P45985	P21333	binding	up-regulates activity	0.523	We used Filamin-A-deficient cells to show that Filamin A enhances MKK7 activation and is important for synergistic stress-induced JNK activation in vivo. Thus Filamin A is a novel member of the group of scaffold proteins whose function is to link two MAPKKs together and promote JNK activation. The present study provides evidence that Filamin A is one of the ‘binder’ molecules presumed to directly and closely connect MKK4 and MKK7 so that they can mediate this tyrosine/threonine phosphorylation. We showed that Filamin A (as well as Filamin B and C) associate with MKK7 and MKK4, but not with JNK1 itself	SIGNOR-260629
Q9BZS1	P84022	null	up-regulates	0.523	The TCR, IL-2R, and TbetaR must all be stimulated to induce Foxp3 + Tregs. Failure to engage any one of these receptors prevents the generation of Foxp3 + Tregs	SIGNOR-254363
Q14203	P53350	phosphorylation	up-regulates	0.523	Plk1-mediated phosphorylation of p150(glued) at ser-179 positively regulates its accumulation at the nuclear envelope during prophase.	SIGNOR-167281
P60953	P63096	binding	up-regulates activity	0.523	These findings indicate that both G alpha(i) and G beta gamma stimulate Rac and Cdc42 pathways with lysophosphatidic acid-induced cell spreading on fibronectin	SIGNOR-256531
P19793	P27361	phosphorylation	down-regulates activity	0.523	In colon cancer cells, the Ras/mitogen‐activated protein kinase (MAPK) pathway phosphorylates RXRalpha, which impairs its function as a heterodimeric partner for PPARgamma\|A point‐mutated RXRalpha T82A/S260A, which mimics the unphosphorylated form of RXRalpha, can form a heterodimer with PPARgamma and thereby activate target gene expression by binding to the PPRE	SIGNOR-88662
Q96A00	P17252	phosphorylation	up-regulates activity	0.523	A major kinase for GPCR‐induced CPI‐17 phosphorylation is PKC which is activated by the PLCbeta‐produced signaling messenger diacylglycerol (DAG). It phosphorylates CPI‐17 at Thr38 residue that directly docks at the active site of MLCP, thereby inhibiting its activity and promoting an increase of phosphorylation of myosin and of other MLCP.	SIGNOR-249259
P50148	P30550	binding	up-regulates activity	0.523	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-257372
Q15717	Q16539	phosphorylation	up-regulates	0.523	P38 mapk phosphorylates the mrna binding protein hur on thr118, which results in cytoplasmic accumulation of hur and its enhanced binding to the p21cip1 mrna.	SIGNOR-186135
Q4VCS5	O95835	phosphorylation	up-regulates quantity by stabilization	0.523	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-275843
P23458	Q8N6P7	binding	up-regulates	0.523	Each r1-type chain (il-10r1, il-20r1, il-22r1, ifn-_r1 and ifn-_r1) is associated with jak1 tyrosine kinase and mediates recruitment of a variety of signaling molecules after being phosphorylated on its intracellular domain.	SIGNOR-124489
Q14457	Q9HD26	binding	up-regulates	0.523	Npist binds beclin 1 by a ccd	SIGNOR-171896
P15927	P54727	binding	up-regulates activity	0.523	GG-NER is initiated by the GG-NER specific factor XPC-RAD23B, in some cases with the help of UV-DDB (UV-damaged DNA-binding protein). TC-NER is initiated by RNA polymerase stalled at a lesion with the help of TC-NER specific factors CSA, CSB, and XAB2. Both pathways require the core NER factors to complete the excision process\|The core NER dual incision reaction has been reconstituted in vitro with purified factors using XPC-RAD23B, TFIIH, XPA, RPA, XPG, and ERCC1-XPF (Aboussekhra et al. 1995; Mu et al. 1995; Araujo et al. 2000).\|The core NER dual incision reaction has been reconstituted in vitro with purified factors using XPC-RAD23B, TFIIH, XPA, RPA, XPG, and ERCC1-XPF (Aboussekhra et al. 1995; Mu et al. 1995; Araujo et al. 2000). Functional studies revealed that XPC-RAD23B is the initial damage recognition factor in this system, as the presence of XPC-RAD23B is required for assembly of the other core NER factors and progression through the NER pathway both in vitro and in vivo	SIGNOR-275699
O60674	P27361	phosphorylation	down-regulates	0.523	We hypothesize that phosphorylation of ser523 in jak2 by erks 1 and/or 2 or other as-yet-unidentified kinases acts in a negative feedback manner	SIGNOR-146747
P04637	Q99986	phosphorylation	up-regulates	0.523	Vrk1 phosphorylates murine p53 in threonine 18. This threonine is within the p53 hydrophobic loop (residues 13-23) required for the interaction of p53 with the cleft of its inhibitor mdm-2.	SIGNOR-81222
P45984	P63000	binding	up-regulates	0.523	We show that rac1 activates jnk2 that in turn phosphorylates beta-catenin on critical residues and controls its nuclear translocation.	SIGNOR-178265
P15172	P24941	phosphorylation	down-regulates	0.522	Cyclin e/cdk2 can phosphorylate myod at serine 200, which causes ubiquitination and degradation of this transcription factor during g1, preventing its accumulation and a commitment to differentiation.	SIGNOR-176509
Q9BXL7	P31749	phosphorylation	up-regulates activity	0.522	Akt phosphorylates S637 and S645 in the linker region of Carma1	SIGNOR-276621
P10275	Q14192	binding	up-regulates	0.522	Fhl2 contains a strong, autonomous transactivation function and binds specifically to the ar in vitro and in vivo.	SIGNOR-74703
Q5VTR2	Q13315	phosphorylation	up-regulates	0.522	E3 ubiquitin ligase, a heterodimeric complex of the ringfinger rfn20/rfn40 is phosphorylated by atm.	SIGNOR-174949
Q14344	P30556	binding	up-regulates	0.522	These results indicate that ang ii increases endothelial arginase activity/expression through galfa12/13 g proteins coupled to at(1) receptors and subsequent activation of rhoa/rock/p38 mapk pathways leading to endothelial dysfunction.	SIGNOR-171760
P43034	P07900	binding	up-regulates quantity by stabilization	0.522	The type I lissencephaly gene product LIS1, a key regulator of cytoplasmic dynein, is critical for cell proliferation, survival, and neuronal migration. However, little is known about the regulation of LIS1. Here, we identify a previously uncharacterized mammalian homolog of Aspergillus NudC, NudCL2 (NudC-like protein 2), as a regulator of LIS1. NudCL2 is localized to the centrosome in interphase, and spindle poles and kinetochores during mitosis, a pattern similar to the localization of LIS1 and cytoplasmic dynein. Depletion of NudCL2 destabilized LIS1 and led to phenotypes resembling those of either dynein or LIS1 deficiency. NudCL2 complexed with and enhanced the interaction between LIS1 and Hsp90. Either disruption of the LIS1-Hsp90 interaction with the C terminus of NudCL2 or inhibition of Hsp90 chaperone function by geldanamycin decreased LIS1 stability.	SIGNOR-252168
O95297	Q06124	dephosphorylation	down-regulates	0.522	In vitro, tyrosine-phosphorylated pzr was efficiently dephosphorylated by the full-length form of shp-2 but not by its sh2 domain-truncated form. The coexisting binding and dephosphorylation of pzr by shp-2 may function to terminate signal transduction initiated by pzr and shp-2 and to set a threshold for the signal transduction to be initiated.	SIGNOR-75220
P05771	O15530	phosphorylation	up-regulates	0.522	One of the most studied events controlled by ptdins(3,4,5)p3, comprises the activation of a of agc family protein kinases, including isoforms of protein kinase b (pkb)/akt, p70 ribosomal s6 kinase (s6k), serum and glucocorticoid-induced protein kinase (sgk) and protein kinase c (pkc), which play crucial roles in regulating physiological processes relevant to metabolism, growth, proliferation and survival. Here, we review recent biochemical, genetic and structural studies on the 3-phosphoinositide-dependent protein kinase-1 (pdk1), which phosphorylates and activates the agc kinase members regulated by pi 3-kinase. We also discuss whether inhibitors of pdk1 might have chemotherapeutic potential in the treatment of cancers in which the pdk1-regulated agc kinases are constitutively activated.	SIGNOR-126069
P16220	Q13315	phosphorylation	down-regulates	0.522	Individual ala substitutions at thr-100, ser-111, or ser-121 inhibited atm-catalyzed phosphate incorporationatm phosphorylated creb in vitro and in vivo in response to ionizing radiation (ir) and h(2)o(2) on a stress-inducible domain. Ir-induced phosphorylation of creb correlated with a decrease in creb transactivation potential and reduced interaction between creb and its transcriptional coactivator, creb-binding protein (cbp)	SIGNOR-124051
Q2TAZ0	Q9Y484	binding	up-regulates activity	0.522	WIPI4 interacts with ATG2, AMPK and ULK1. Upon starvation and AMPK activation, WIPI4-ATG2 dissociates from AMPK and ULK1 and localizes at nascent autophagosomes, potentially supporting further autophagosome maturation.	SIGNOR-268483
O43306	P04899	binding	down-regulates activity	0.522	Types V and VI adenylyl cyclase are most sensitive to inhibition by Gnai1, Gnai2, and Gnai3	SIGNOR-278078
Q00987	Q13535	phosphorylation	down-regulates activity	0.522	We found that a major kinase responsible for s407 phosphorylation is atrs407 phosphorylation of mdm2 by atr reduces mdm2-dependent export of p53 from nuclei to cytoplasm.	SIGNOR-119546
P20393	Q9UBK2	transcriptional regulation	up-regulates quantity by expression	0.522	Transcriptional coactivator PGC-1α integrates the mammalian clock and energy metabolism. Here we show that PGC-1alpha (Ppargc1a), a transcriptional coactivator that regulates energy metabolism, is rhythmically expressed in the liver and skeletal muscle of mice. PGC-1alpha stimulates the expression of clock genes, notably Bmal1 (Arntl) and Rev-erbalpha (Nr1d1), through coactivation of the ROR family of orphan nuclear receptors. Chromatin immunoprecipitation (ChIP) assays in HepG2 cells indicate that PGC-1α is present near RORE on the proximal Bmal1 promoter.These results indicate that PGC-1α activates Bmal1 transcription by altering the local chromatin environment from a repressive to an active state.	SIGNOR-268030
Q8N726	Q13207	transcriptional regulation	down-regulates quantity by repression	0.522	TBX2 and TBX3 function as transcriptional repressors and both have been shown to inhibit myogenesis (Carlson et al, 2002; Zhu et al, 2014). Abnormal expression of TBX2 has been reported in several cancers including breast, pancreas, and melanoma, where it has been shown to drive proliferation (reviewed in Abrahams et al (2010)). As has been previously shown in other cell types, TBX2 was found to induce a downregulation of p14/19ARF and function as a direct repressor of p21 in RMS	SIGNOR-249594
Q9NR28	Q16611	relocalization	up-regulates	0.522	Bax and/or bak-mediated release of pro-apoptotic mediators including smac/diablo and omi	SIGNOR-118905
P32927	P29350	dephosphorylation	down-regulates	0.522	However, inhibition of shp2 binding to betac, did not prevent tyrosine phosphorylation of shp2. Interestingly, this same phosphopeptide served as a substrate for the tyrosine phosphatase activity of both shp1 and shp2.	SIGNOR-114597
P06737	Q9Y572	binding	up-regulates	0.522	Rip3 directly interacts with glycogen phosphorylase (pygl), glutamate ammonia ligase (glul), and glutamate dehydrogenase 1 (glud1). Rip kinase activity is required to enhance the activities of all three enzymes both in vivo and in vitro.	SIGNOR-186939
P63000	Q96BY6	guanine nucleotide exchange factor	up-regulates activity	0.522	We therefore developed a screening-compatible live-cell imaging assay, using FRET-based biosensors for the prototype GTPases RHOA, RAC1 and CDC4215,19,20 (Extended Data Fig. 2 and Supplementary Note 1)\|We found catalytic activities for 45/75 RhoGEFs and 48/63 RhoGAPs\| Our data thus not only reveal extensive promiscuity among regulators, but also that the inactivating RhoGAPs are less selective than the activating RhoGEFs (p-value=0.02)(Supplementary Table 2).	SIGNOR-260549
Q01082	P36897	phosphorylation	up-regulates	0.522	This suggests that, upon stimulation with tgf-beta1, phosphorylation of elf could induce a conformational change that reduces its affinity for ankyrin and tropomyosin and facilitates an association with smad3 and smad4 instead.	SIGNOR-97626
P61224	P17612	phosphorylation	up-regulates	0.522	These results provide a mechanistic explanation for the differential effects of rap1 phosphorylation by pka on effector protein interaction. camp is one among several pathways leading to rap1 activation	SIGNOR-187410
P35244	P54727	binding	up-regulates activity	0.522	GG-NER is initiated by the GG-NER specific factor XPC-RAD23B, in some cases with the help of UV-DDB (UV-damaged DNA-binding protein). TC-NER is initiated by RNA polymerase stalled at a lesion with the help of TC-NER specific factors CSA, CSB, and XAB2. Both pathways require the core NER factors to complete the excision process\|The core NER dual incision reaction has been reconstituted in vitro with purified factors using XPC-RAD23B, TFIIH, XPA, RPA, XPG, and ERCC1-XPF (Aboussekhra et al. 1995; Mu et al. 1995; Araujo et al. 2000).\|The core NER dual incision reaction has been reconstituted in vitro with purified factors using XPC-RAD23B, TFIIH, XPA, RPA, XPG, and ERCC1-XPF (Aboussekhra et al. 1995; Mu et al. 1995; Araujo et al. 2000). Functional studies revealed that XPC-RAD23B is the initial damage recognition factor in this system, as the presence of XPC-RAD23B is required for assembly of the other core NER factors and progression through the NER pathway both in vitro and in vivo	SIGNOR-275700
P11168	P52945	transcriptional regulation	up-regulates quantity by expression	0.522	In conclusion, Pdx1 confers the expression of pancreatic β-cell-specific genes, such as genes encoding insulin, islet amyloid polypeptide, Glut2, and Nkx6.1.	SIGNOR-255540
Q5VWQ8	P98082	binding	up-regulates activity	0.521	In prostate cancer cells, DAB2IP was shown to be recruited by the adaptor protein DAB2/DOC2 to promote Ras inactivation and inhibition of MAPK signaling upon receptor stimulation.	SIGNOR-254744
O43524	Q9HBY8	phosphorylation	down-regulates activity	0.521	Protein kinase SGK mediates survival signals by phosphorylating the forkhead transcription factor FKHRL1 (FOXO3a)\|However, SGK and Akt display differences with respect to the efficacy with which they phosphorylate the three regulatory sites on FKHRL1. While both kinases can phosphorylate Thr-32, SGK displays a marked preference for Ser-315 whereas Akt favors Ser-253. These findings suggest that SGK and Akt may coordinately regulate the function of FKHRL1 by phosphorylating this transcription factor at distinct sites. The efficient phosphorylation of these three sites on FKHRL1 by SGK and Akt appears to be critical to the ability of growth factors to suppress FKHRL1-dependent transcription, thereby preventing FKHRL1 from inducing cell cycle arrest and apoptosis.	SIGNOR-249130
Q99835	P48729	phosphorylation	up-regulates	0.521	We demonstrate that mammalian Smo (mSmo) is activated through multi-site phosphorylation of its carboxyl-terminal tail by CK1α and GRK2. Phosphorylation of mSmo induces its active conformation and simultaneously promotes its ciliary accumulation.	SIGNOR-174542
A1X283	P12931	phosphorylation	up-regulates activity	0.521	C-Src-mediated phosphorylation of NoxA1 and Tks4 induces the reactive oxygen species (ROS)-dependent formation of functional invadopodia in human colon cancer cells\|Here, we show that the interaction of noxa1 and tks proteins is dependent on src activity. Interestingly, the abolishment of src-mediated phosphorylation of tyr110 on noxa1 and of tyr508 on tks4 blocks their binding and decreases nox1-dependent ros generation.	SIGNOR-264705
Q14457	P00533	phosphorylation	down-regulates activity	0.521	The mechanism by which EGFR suppresses Beclin 1 function involves EGFR interaction with two domains (BH3 and ECD) of Beclin 1; EGFR mediated multisite tyrosine phosphorylation of Beclin 1 on residues Y229, Y233 and Y352; and EGFR mediated alterations in the Beclin 1 interactome (increased binding to the negative regulators, Bcl-2 and Rubicon, and decreased binding to the VPS34 lipid kinase).\|Thus, EGFR signaling suppresses autophagy via its interaction with Beclin 1 during normal mitogenic signaling as well as during aberrant cell proliferation in cancer cells.	SIGNOR-278357
P62834	P17612	phosphorylation	down-regulates activity	0.521	Phosphorylation of Rap1A by PKA abolished its binding activity to CRR. a mutant Rap1A(S180E), whose sole PKA phosphorylation residue, Ser-180, was substituted by an acidic residue, Glu, to mimic its phosphorylated form, failed to suppress Ras-dependent Raf-1 activation in COS-7 cells.	SIGNOR-250042
Q92900	Q9HCE1	binding	up-regulates activity	0.521	MOV10 has been shown to promote mRNA degradation by associating with UPF1, this activity requires the helicase activity of MOV10.	SIGNOR-261139
P60953	Q8WWN8	gtpase-activating protein	down-regulates activity	0.521	We therefore developed a screening-compatible live-cell imaging assay, using FRET-based biosensors for the prototype GTPases RHOA, RAC1 and CDC4215,19,20 (Extended Data Fig. 2 and Supplementary Note 1)\|We found catalytic activities for 45/75 RhoGEFs and 48/63 RhoGAPs\| Our data thus not only reveal extensive promiscuity among regulators, but also that the inactivating RhoGAPs are less selective than the activating RhoGEFs (p-value=0.02)(Supplementary Table 2).	SIGNOR-260457
P48454	P0DP24	binding	up-regulates	0.521	Calcium-bound calmodulin associates with calcineurin (cn), releasing the phosphatase from the repressive effects on an autoinhibitory domain.	SIGNOR-266324
Q12933	O95819	phosphorylation	down-regulates quantity	0.521	A key finding of our study is that HGK induces lysosomal degradation of TRAF2 by directly phosphorylating TRAF2 Ser35.\|Conversely, TRAF2 levels were decreased by ectopically expressed HGK in an overexpression system (XREF_FIG).	SIGNOR-279536
O95295	O43567	polyubiquitination	up-regulates activity	0.521	RNF13 directly interacted with snapin, a SNAP-25-interacting protein. Interestingly, snapin was ubiquitinated by RNF13 via the lysine-29 conjugated polyubiquitin chain, which in turn promoted the association of snapin with SNAP-25. Consistently, we found an attenuated interaction between snapin and SNAP-25 in the RNF13-null mice. Therefore, these results suggest that RNF13 is involved in the regulation of the SNARE complex, which thereby controls synaptic function.	SIGNOR-272044
Q5JWF2	P32245	null	up-regulates activity	0.521	We hypothesize that XLŒ±s may be involved in this regulatory loop by coupling to melanocortin receptors 3 and 4 in the hypothalamus.	SIGNOR-253067
O43524	Q16539	phosphorylation	up-regulates	0.521	Ogether, our results suggest that p38 phosphorylation of foxo3a on ser-7 is essential for its nuclear relocalization in response to doxorubicin	SIGNOR-177927
Q9BXW9	Q9NS91	ubiquitination	up-regulates activity	0.521	In summary, these findings suggest a model, where Rad18 promotes monoubiquitination of FANCD2, and associates with a functional complex involving Rad51, BRCA2, and FANCD2 in the repair of CPT induced stalled or collapsed forks.\|In this study we focused on the role of Rad18 mediated activation of FANCD2 and its functional relationship with BRCA2 and Rad51 proteins in repair of CPT induced lesions.	SIGNOR-278712
Q9NRA0	P27361	phosphorylation	up-regulates	0.521	Sphingosine kinase type 2 activation by erk-mediated phosphorylation. site-directed mutagenesis indicated that hsphk2 is phosphorylated on ser-351 and thr-578 by erk1	SIGNOR-153387
P21731-2	P17252	phosphorylation	down-regulates activity	0.521	These data suggest a model whereby agonist-induced PKC phosphorylation of Ser(145) partially impairs TPbeta signalling while GRK2/3 phosphorylation at both Ser(239) and Ser(357) within its IC(3) and C-tail domains, respectively, sterically inhibits G-protein coupling, profoundly desensitizing signalling, and promotes beta-arrestin association and, in turn, facilitates TPbeta internalization.	SIGNOR-274092
P63092	P32245	binding	up-regulates activity	0.521	The melanocortin (MC) receptor family consists of five Gs-coupled receptors that control various physiological functions in response to four distinct agonists, adrenocorticotropic hormone (ACTH, also known as corticotrophin) and alpha, beta, and gamma melanocyte-stimulating hormone (MSH), which are derived from the proopiomelanocortin precursor protein, and two inverse agonists, agouti and agouti-related proteins	SIGNOR-268707
P55072	O00124	relocalization	down-regulates quantity	0.521	The human protein named Rep8 or Ubxd6 as a new cofactor of p97. Rep8 tethers p97 to the ER membrane for efficient ER-associated degradation.	SIGNOR-261002
P63092	P34969	binding	up-regulates activity	0.521	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-256783
P42338	P21860	binding	up-regulates	0.521	Pi3k is the sole binding partner to six tyrosines of erbb3 and one in erbb4.	SIGNOR-146864
P07101	P49137	phosphorylation	up-regulates activity	0.52	MAPKAP-K2 phosphorylates both Ser19 and Ser40 of TH. Tyrosine hydroxylase (TH) has been reported to require binding of 14-3-3 proteins for optimal activation by phosphorylation.	SIGNOR-250149
P11441	Q9UKV5	polyubiquitination	down-regulates activity	0.52	USP13 and gp78 control ubiquitination of Ubl4A.These data suggest that USP13 and gp78 play antagonizing roles in regulation of Ubl4A ubiquitination: While gp78 assembles ubiquitin chains on Ubl4A, USP13 antagonizes this activity to limit Ubl4A ubiquitination.Ubiquitination of Ubl4A preferentially occurs on Lys48. We identify the Bag6 cofactor Ubl4A as a shared substrate of gp78 and USP13. USP13 depletion is associated with hyper-ubiquitination of Ubl4A and altered interaction between the Bag6 complex and its co-chaperone SGTA. Because the interaction of Ubl4A with SGTA is mediated by positively-charged residues in Ubl4A including Lys48 (Chartron et al., 2012; Xu et al., 2012), which happens to be the major ubiquitination site, the simplest model to explain reduced Bag6-SGTA interaction in USP13 knockdown cells is that ubiquitin conjugates on Ubl4A sterically hinder SGTA binding.	SIGNOR-272856
O15151	O14757	phosphorylation	down-regulates activity	0.52	MDMX is a direct substrate for Chk1 and Chk2 in vitro. Phosphorylation of MDMX leads to increased binding to MDM2 and more efficient ubiquitination, providing an explanation for the enhanced degradation of MDMX after DNA damage. \| Western blot showed that Chk1 modified S342 and S367, but with strong preference for S342.	SIGNOR-250770
P07320	P02511	binding	up-regulates activity	0.52	Human gamma-crystallins are long-lived, unusually stable proteins of the eye lens exhibiting duplicated, double Greek key domains. The lens also contains high concentrations of the small heat shock chaperone alpha-crystallin, which suppresses aggregation of model substrates in vitro. Mature-onset cataract is believed to represent an aggregated state of partially unfolded and covalently damaged crystallins. The alphaB-crystallin oligomers formed long-lived stable complexes with their gammaD-crystallin substrates. These in vitro results provide support for protein unfolding/protein aggregation models for cataract, with alpha-crystallin suppressing aggregation of damaged or unfolded proteins through early adulthood but becoming saturated with advancing age.	SIGNOR-253621
O95622	P19086	binding	down-regulates activity	0.52	Activated a z inhibits the activity of type I and type V adenylyl cyclases.	SIGNOR-278045
P14373	Q9UJ55	binding	up-regulates activity	0.52	MAGE proteins are a family of proteins that contain a conserved domain known as the MAGE homology domain. Recently, we showed that MAGE proteins function biochemically to bind to and enhance the activity of E3 RING ubiquitin ligases. The E3 RING ubiquitin ligase TRIM27 was identified as a major binding partner of MAGE-L2.	SIGNOR-253513
P04637	O14920	phosphorylation	up-regulates activity	0.52	Here , we show that IKKbeta modulates the activity of p53 in response to glutamine depletion to promote cancer cell adaptation .\|Taken together, these results indicate that IKK\u03b2 phosphorylates p53 on Ser392 as an early response to glutamine deprivation and possibly later facilitates its phosphorylation at Ser15 and transcriptional activity.	SIGNOR-278516
P15923	P49137	phosphorylation	up-regulates	0.52	Neverthless, some transcription factors, such as e47, er81, srf and creb are also phosphorylated by mk2	SIGNOR-166643

Q12879

Q00535

0

phosphorylation

up-regulates activity

0.525

Here, we demonstrate that cyclin dependent kinase-5 (Cdk5) associates with and phosphorylates NR2A subunits at Ser-1232 in vitro and in intact cells. Moreover, we show that roscovitine, a selective Cdk5 inhibitor, blocks both long-term potentiation induction and NMDA-evoked currents in rat CA1 hippocampal neurons. These results suggest that Cdk5 plays a key role in synaptic transmission and plasticity through its up-regulation of NMDARs.

SIGNOR-250666

O43150

Q14289

0

phosphorylation

up-regulates activity

0.525

Tyrosine phosphorylation of Pap by Pyk2 or Src kinases. We have identified a new Pyk2 binding protein designated Pap. Pap is a multidomain protein composed of an N-terminal alpha-helical region with a coiled-coil motif, followed by a pleckstrin homology domain, an Arf-GAP domain, an ankyrin homology region, a proline-rich region, and a C-terminal SH3 domain. We demonstrate that Pap forms a stable complex with Pyk2 and that activation of Pyk2 leads to tyrosine phosphorylation of Pap in living cells.

SIGNOR-269704

P10636

P53778

0

phosphorylation

down-regulates activity

0.525

Phosphorylation of tau by SAPK3 and SAPK4 markedly reduced the ability of tau to promote microtubule assembly. SAPK3 (also called ERK6 and p38) and SAPK4 phosphorylate recombinant tau protein at multiple Ser/Thr-Pro sites that are hyperphosphorylated in PHF-tau, with SAPK4 and SAPK3 being the most effective.

SIGNOR-250087

P04049

Q9BRX9

0

binding

up-regulates

0.525

Morg1 specifically associates with several components of the erk pathway, including mp1, raf-1, mek, and erk, and stabilizes their assembly into an oligomeric complex.

SIGNOR-124476

Q06124

P36888

0

binding

up-regulates activity

0.525

Y599 was additionally found to interact with the protein tyrosine phosphatase SHP2 in a phosphorylation-dependent manner. As Y599F-Flt3-32D was unable to associate with and to phosphorylate SHP2 and since silencing of SHP2 in WT-Flt3-expressing cells mimicked the Y599F-Flt3 phenotype, we hypothesize that recruitment of SHP2 to pY599 contributes to FL-mediated Erk activation and proliferation.

SIGNOR-245057

O15503

Q9UKV5

0

ubiquitination

down-regulates quantity by destabilization

0.525

The ubiquitination of Insig-1 is mediated by gp78 and regulated by sterols.|gp78 mediates the degradation of Insig-1 and Insig-2.

SIGNOR-278567

O14727

Q96GX9

0

binding

down-regulates

0.525

Taken together, these results suggest that apip functions to inhibit muscle ischemic damage by binding to apaf-1 in the apaf-1/caspase-9 apoptosis pathway.

SIGNOR-126797

P61586

O15013

0

guanine nucleotide exchange factor

up-regulates activity

0.525

We therefore developed a screening-compatible live-cell imaging assay, using FRET-based biosensors for the prototype GTPases RHOA, RAC1 and CDC4215,19,20 (Extended Data Fig. 2 and Supplementary Note 1)|We found catalytic activities for 45/75 RhoGEFs and 48/63 RhoGAPs| Our data thus not only reveal extensive promiscuity among regulators, but also that the inactivating RhoGAPs are less selective than the activating RhoGEFs (p-value=0.02)(Supplementary Table 2).

SIGNOR-260535

P48454

P0DP25

0

binding

up-regulates

0.525

Calcium-bound calmodulin associates with calcineurin (cn), releasing the phosphatase from the repressive effects on an autoinhibitory domain.

SIGNOR-266340

Q14393

P38435

0

carboxylation

up-regulates activity

0.525

Thus, vitamin K acts as a cofactor for GGCX via the vitamin K cycle and exerts physiological effects through its regulation of VKDPs [29]. More than 20 VKDPs have been found. Osteocalcin promotes bone formation, and blood coagulation factors II, VII, IX, and X activate blood coagulation. Matrix Gla protein suppresses cardiovascular calcification, and brain-expressed Gas 6 promotes neural differentiation [29]. GGCX is an enzyme that converts glutamic acid (Glu) residues to Gla residues, so that the Gla-containing proteins can exert various physiological actions such as blood coagulation and bone formation.

SIGNOR-265923

Q01851

Q99578

0

binding

up-regulates activity

0.525

we describe the evidence for a functional interaction between Brn-3a and Rin and demonstrate the role of Rin in modulating the activation of the Brn-3a regulated egr-1 promoter by the N-terminal domain of Brn-3a.

SIGNOR-224546

P55011

Q9BYP7

0

phosphorylation

up-regulates activity

0.525

We have shown that with-no-lysine kinase 3 (WNK3) possesses several properties that suggest it could be the Cl−/volume-sensitive regulatory kinase that, in association with protein phosphatases, reciprocally modifies the phosphorylation/dephosphorylation states of the SLC12 proteins and thus their activities|WNK3 activates NKCC1/2 and NCC and inhibits the KCCs

SIGNOR-264625

Q01970

Q13237

0

phosphorylation

down-regulates activity

0.525

PKG can directly phosphorylate PLC-beta2 and PLC-beta3 in vitro with purified proteins and in vivo with metabolic labeling. Phosphorylation of PLC-beta leads to the inhibition of G-protein-activated PLC-beta3 activity by 50-70% in COS-7 cell transfection assays. By using phosphopeptide mapping and site-directed mutagenesis, we further identified two key phosphorylation sites for the regulation of PLC-beta3 by PKG (Ser(26) and Ser(1105)). Mutation at these two sites (S26A and S1105A) of PLC-beta3 completely blocked the phosphorylation of PLC-beta3 protein catalyzed by PKG.

SIGNOR-249078

Q92934

P31751

0

phosphorylation

down-regulates

0.525

Ser-136 is the major phosphoacceptor site for akt;akt can weakly phosphorilate ser-155.

SIGNOR-81114

Q96BI1

Q9H6Y7

0

polyubiquitination

down-regulates quantity by destabilization

0.525

Here, we present evidences indicating that RING105, a novel conserved RING-finger protein with a PA (protease-associated) domain and a PEST sequence, is a ubiquitin ligase for TSSC5 that can function in concert with the ubiquitin-conjugating enzyme UbcH6. The polyubiquitin target site on TSSC5 was mapped to a region in the 6th hydrophilic loop.

SIGNOR-271551

P33076

P14316

0

transcriptional regulation

up-regulates quantity by expression

0.525

In addition to IRF-1, IRF-2, another member of the IRF family, also activates the human CIITA type IV promoter, and IRF-2 cooperates with IRF-1 to activate the promoter in transient transfection assays.

SIGNOR-271681

P09874

P78527

0

phosphorylation

down-regulates activity

0.525

Therefore, through its interaction with Ku70/80 in the presence of dsDNA , DNA-PK phosphorylated PARP-1 at its catalytic CTD.

SIGNOR-280093

P23769

P31749

0

phosphorylation

down-regulates

0.524

We show that insulin induces gata2 phosphorylation on serine 401 in a pi-3k/akt-dependent manner. Insulin-dependent phosphorylation of serine 401 impairs gata2 translocation to the nucleus and its dna binding activity

SIGNOR-135614

P04637

P12931

0

phosphorylation

down-regulates quantity by destabilization

0.524

We recently found that ISGylation of the p53 tumor suppressor is an important novel mechanism to control its stability. Here we identified that Isg15-dependent regulation of p53 can be enhanced by different oncogenes. We further show that the Src-mediated phosphorylation of p53 on Tyr126 and Tyr220 has a positive effect on p53 ISGylation by enhancing Herc5 binding.

SIGNOR-276668

P84022

Q14974

0

relocalization

up-regulates

0.524

Here we show that the isolated smad 3 mh1 domain displays significant specific binding to importin beta. we propose that activation of all of the pathway-specific smad proteins (smads 1, 2, 3, 5, 8, and 9) exposes the conserved nls motif, which then binds directly to importin beta and triggers nuclear translocation.

SIGNOR-78191

Q12802

Q03113

0

binding

up-regulates activity

0.524

These data suggest that G12 is an upstream activator of AKAP-Lbc in the Rho signaling pathway.

SIGNOR-278882

P00533

Q96CW1

0

relocalization

down-regulates

0.524

The removal of the epidermal growth factor receptor (egfr) from the cell surface by endocytosis is triggered by receptor activation, but many facets of egfr trafficking remain unresolvedthe ap-2 complex is involved in the internalization of activated egfr.

SIGNOR-185124

Q9H2U1

Q99836

0

binding

up-regulates activity

0.524

We further showed that both DHX9 and DHX36 are localized within the cytosol and are directly bound to the Toll-interleukin receptor domain of MyD88 via their helicase-associated domain 2 and DUF domains. This study demonstrates that DHX9/DHX36 represent the MyD88-dependent DNA sensors in the cytosol of pDCs and suggests a much broader role for DHX helicases in viral sensing.

SIGNOR-260956

P55011

O95747

0

phosphorylation

up-regulates

0.524

The secretory na-k-cl cotransporter nkcc1 is activated by secretagogues through a phosphorylation-dependent mechanism. three phosphoacceptor sites were identified in the n-terminal domain of the protein (at thr184, thr189, and thr202) none of these residues occurs in the context of strong consensus sites for known ser/thr kinases.

SIGNOR-90927

Q16665

Q9Y2N7

0

transcriptional regulation

down-regulates quantity by repression

0.524

None of the long HIF-3α variants was capable of efficient induction of an HRE reporter in overexpression experiments, but instead inhibited the transcriptional activation of the reporter by HIF-1 and HIF-2.

SIGNOR-261615

P38405

P29275

0

binding

up-regulates activity

0.524

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-256910

P46527

P27348

0

binding

down-regulates

0.524

14-3-3_, 14-3-3_, and 14-3-3_ (but not 14-3-3_ and 14-3-3_) could form a complex with p27kip1 / we discovered that akt-mediated p27kip1phosphorylation directly induces p27kip1binding to 14-3-3 and cytoplasmic localization through phosphorylating the newly identified thr198residue.

SIGNOR-88300

Q13043

P26927

0

phosphorylation

up-regulates

0.524

We directly show that okadaic acid induces phosphorylation in the activation loop of mst, and, once phosphorylated, mst is rapidly translocated to the nucleus. when thr183 in mst1 was mutated to ala, no band could be detected by oa treatment,2 indicating that thr183 was the site of phosphorylation.

SIGNOR-114289

Q9H1A4

P53350

0

phosphorylation

up-regulates

0.524

Our analysis revealed an unexpected and unprecedented complexity of mitotic phosphorylation sites and suggests that other kinases than cdk1 and plk1 also contribute to apc phosphorylation.

SIGNOR-119881

P63096

P30872

0

binding

up-regulates activity

0.524

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-256679

Q13950

P56524

0

deacetylation

down-regulates activity

0.524

HDAC4 and HDAC5 deacetylate Runx2, allowing the protein to undergo Smurf-mediated degradation

SIGNOR-227547

Q01196

Q03112

0

binding

down-regulates activity

0.524

The results that we present here support this model and show that EVI1 interacts with and inhibits RUNX1. As for GATA1, EVI1 seems to repress RUNX1 function by interacting specifically with its DNA-binding domain Runt, leading to destabilization and dissolution of the DNA-RUNX1 complex.

SIGNOR-255716

Q05397

Q14289

0

phosphorylation

up-regulates

0.524

Activated rock phosphorylates fak on ser732, which is essential for phosphorylation of tyr407 and for cell migration. We further show that pyk2 is activated by vegf-induced clustering of integrin v 3 and is responsible for the phosphorylation of tyr407.

SIGNOR-147070

P56817

Q9UK22

0

binding

down-regulates quantity by destabilization

0.523

SCFFbx2-E3-ligase-mediated degradation of BACE1 attenuates Alzheimer’s disease amyloidosis and improves synaptic function. We report that the SCF(Fbx2) -E3 ligase is involved in the binding and ubiquitination of BACE1 via its Trp 280 residue of F-box-associated domain. we found that overexpression of Fbx2 in the primary cortical and hippocampal neurons derived from Tg2576 transgenic mice significantly promoted BACE1 degradation and reduced β-amyloid production.

SIGNOR-271904

P08151

P23443

0

phosphorylation

up-regulates

0.523

In this study, we found that an activated mtor/s6k1 pathway promotes gli1 transcriptional activity and oncogenic function through s6k1-mediated gli1 phosphorylation at ser84, which releases gli1 from its endogenous inhibitor, sufu.

SIGNOR-196756

P45985

P21333

0

binding

up-regulates activity

0.523

We used Filamin-A-deficient cells to show that Filamin A enhances MKK7 activation and is important for synergistic stress-induced JNK activation in vivo. Thus Filamin A is a novel member of the group of scaffold proteins whose function is to link two MAPKKs together and promote JNK activation. The present study provides evidence that Filamin A is one of the ‘binder’ molecules presumed to directly and closely connect MKK4 and MKK7 so that they can mediate this tyrosine/threonine phosphorylation. We showed that Filamin A (as well as Filamin B and C) associate with MKK7 and MKK4, but not with JNK1 itself

SIGNOR-260629

Q9BZS1

P84022

0

null

up-regulates

0.523

The TCR, IL-2R, and TbetaR must all be stimulated to induce Foxp3 + Tregs. Failure to engage any one of these receptors prevents the generation of Foxp3 + Tregs

SIGNOR-254363

Q14203

P53350

0

phosphorylation

up-regulates

0.523

Plk1-mediated phosphorylation of p150(glued) at ser-179 positively regulates its accumulation at the nuclear envelope during prophase.

SIGNOR-167281

P60953

P63096

0

binding

up-regulates activity

0.523

These findings indicate that both G alpha(i) and G beta gamma stimulate Rac and Cdc42 pathways with lysophosphatidic acid-induced cell spreading on fibronectin

SIGNOR-256531

P19793

P27361

0

phosphorylation

down-regulates activity

0.523

In colon cancer cells, the Ras/mitogen‐activated protein kinase (MAPK) pathway phosphorylates RXRalpha, which impairs its function as a heterodimeric partner for PPARgamma|A point‐mutated RXRalpha T82A/S260A, which mimics the unphosphorylated form of RXRalpha, can form a heterodimer with PPARgamma and thereby activate target gene expression by binding to the PPRE

SIGNOR-88662

Q96A00

P17252

0

phosphorylation

up-regulates activity

0.523

A major kinase for GPCR‐induced CPI‐17 phosphorylation is PKC which is activated by the PLCbeta‐produced signaling messenger diacylglycerol (DAG). It phosphorylates CPI‐17 at Thr38 residue that directly docks at the active site of MLCP, thereby inhibiting its activity and promoting an increase of phosphorylation of myosin and of other MLCP.

SIGNOR-249259

P50148

P30550

0

binding

up-regulates activity

0.523

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-257372

Q15717

Q16539

0

phosphorylation

up-regulates

0.523

P38 mapk phosphorylates the mrna binding protein hur on thr118, which results in cytoplasmic accumulation of hur and its enhanced binding to the p21cip1 mrna.

SIGNOR-186135

Q4VCS5

O95835

0

phosphorylation

up-regulates quantity by stabilization

0.523

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-275843

P23458

Q8N6P7

0

binding

up-regulates

0.523

Each r1-type chain (il-10r1, il-20r1, il-22r1, ifn-_r1 and ifn-_r1) is associated with jak1 tyrosine kinase and mediates recruitment of a variety of signaling molecules after being phosphorylated on its intracellular domain.

SIGNOR-124489

Q14457

Q9HD26

0

binding

up-regulates

0.523

Npist binds beclin 1 by a ccd

SIGNOR-171896

P15927

P54727

0

binding

up-regulates activity

0.523

GG-NER is initiated by the GG-NER specific factor XPC-RAD23B, in some cases with the help of UV-DDB (UV-damaged DNA-binding protein). TC-NER is initiated by RNA polymerase stalled at a lesion with the help of TC-NER specific factors CSA, CSB, and XAB2. Both pathways require the core NER factors to complete the excision process|The core NER dual incision reaction has been reconstituted in vitro with purified factors using XPC-RAD23B, TFIIH, XPA, RPA, XPG, and ERCC1-XPF (Aboussekhra et al. 1995; Mu et al. 1995; Araujo et al. 2000).|The core NER dual incision reaction has been reconstituted in vitro with purified factors using XPC-RAD23B, TFIIH, XPA, RPA, XPG, and ERCC1-XPF (Aboussekhra et al. 1995; Mu et al. 1995; Araujo et al. 2000). Functional studies revealed that XPC-RAD23B is the initial damage recognition factor in this system, as the presence of XPC-RAD23B is required for assembly of the other core NER factors and progression through the NER pathway both in vitro and in vivo

SIGNOR-275699

O60674

P27361

0

phosphorylation

down-regulates

0.523

We hypothesize that phosphorylation of ser523 in jak2 by erks 1 and/or 2 or other as-yet-unidentified kinases acts in a negative feedback manner

SIGNOR-146747

P04637

Q99986

0

phosphorylation

up-regulates

0.523

Vrk1 phosphorylates murine p53 in threonine 18. This threonine is within the p53 hydrophobic loop (residues 13-23) required for the interaction of p53 with the cleft of its inhibitor mdm-2.

SIGNOR-81222

P45984

P63000

0

binding

up-regulates

0.523

We show that rac1 activates jnk2 that in turn phosphorylates beta-catenin on critical residues and controls its nuclear translocation.

SIGNOR-178265

P15172

P24941

0

phosphorylation

down-regulates

0.522

Cyclin e/cdk2 can phosphorylate myod at serine 200, which causes ubiquitination and degradation of this transcription factor during g1, preventing its accumulation and a commitment to differentiation.

SIGNOR-176509

Q9BXL7

P31749

0

phosphorylation

up-regulates activity

0.522

Akt phosphorylates S637 and S645 in the linker region of Carma1

SIGNOR-276621

P10275

Q14192

0

binding

up-regulates

0.522

Fhl2 contains a strong, autonomous transactivation function and binds specifically to the ar in vitro and in vivo.

SIGNOR-74703

Q5VTR2

Q13315

0

phosphorylation

up-regulates

0.522

E3 ubiquitin ligase, a heterodimeric complex of the ringfinger rfn20/rfn40 is phosphorylated by atm.

SIGNOR-174949

Q14344

P30556

0

binding

up-regulates

0.522

These results indicate that ang ii increases endothelial arginase activity/expression through galfa12/13 g proteins coupled to at(1) receptors and subsequent activation of rhoa/rock/p38 mapk pathways leading to endothelial dysfunction.

SIGNOR-171760

P43034

P07900

0

binding

up-regulates quantity by stabilization

0.522

The type I lissencephaly gene product LIS1, a key regulator of cytoplasmic dynein, is critical for cell proliferation, survival, and neuronal migration. However, little is known about the regulation of LIS1. Here, we identify a previously uncharacterized mammalian homolog of Aspergillus NudC, NudCL2 (NudC-like protein 2), as a regulator of LIS1. NudCL2 is localized to the centrosome in interphase, and spindle poles and kinetochores during mitosis, a pattern similar to the localization of LIS1 and cytoplasmic dynein. Depletion of NudCL2 destabilized LIS1 and led to phenotypes resembling those of either dynein or LIS1 deficiency. NudCL2 complexed with and enhanced the interaction between LIS1 and Hsp90. Either disruption of the LIS1-Hsp90 interaction with the C terminus of NudCL2 or inhibition of Hsp90 chaperone function by geldanamycin decreased LIS1 stability.

SIGNOR-252168

O95297

Q06124

0

dephosphorylation

down-regulates

0.522

In vitro, tyrosine-phosphorylated pzr was efficiently dephosphorylated by the full-length form of shp-2 but not by its sh2 domain-truncated form. The coexisting binding and dephosphorylation of pzr by shp-2 may function to terminate signal transduction initiated by pzr and shp-2 and to set a threshold for the signal transduction to be initiated.

SIGNOR-75220

P05771

O15530

0

phosphorylation

up-regulates

0.522

One of the most studied events controlled by ptdins(3,4,5)p3, comprises the activation of a of agc family protein kinases, including isoforms of protein kinase b (pkb)/akt, p70 ribosomal s6 kinase (s6k), serum and glucocorticoid-induced protein kinase (sgk) and protein kinase c (pkc), which play crucial roles in regulating physiological processes relevant to metabolism, growth, proliferation and survival. Here, we review recent biochemical, genetic and structural studies on the 3-phosphoinositide-dependent protein kinase-1 (pdk1), which phosphorylates and activates the agc kinase members regulated by pi 3-kinase. We also discuss whether inhibitors of pdk1 might have chemotherapeutic potential in the treatment of cancers in which the pdk1-regulated agc kinases are constitutively activated.

SIGNOR-126069

P16220

Q13315

0

phosphorylation

down-regulates

0.522

Individual ala substitutions at thr-100, ser-111, or ser-121 inhibited atm-catalyzed phosphate incorporationatm phosphorylated creb in vitro and in vivo in response to ionizing radiation (ir) and h(2)o(2) on a stress-inducible domain. Ir-induced phosphorylation of creb correlated with a decrease in creb transactivation potential and reduced interaction between creb and its transcriptional coactivator, creb-binding protein (cbp)

SIGNOR-124051

Q2TAZ0

Q9Y484

0

binding

up-regulates activity

0.522

WIPI4 interacts with ATG2, AMPK and ULK1. Upon starvation and AMPK activation, WIPI4-ATG2 dissociates from AMPK and ULK1 and localizes at nascent autophagosomes, potentially supporting further autophagosome maturation.

SIGNOR-268483

O43306

P04899

0

binding

down-regulates activity

0.522

Types V and VI adenylyl cyclase are most sensitive to inhibition by Gnai1, Gnai2, and Gnai3

SIGNOR-278078

Q00987

Q13535

0

phosphorylation

down-regulates activity

0.522

We found that a major kinase responsible for s407 phosphorylation is atrs407 phosphorylation of mdm2 by atr reduces mdm2-dependent export of p53 from nuclei to cytoplasm.

SIGNOR-119546

P20393

Q9UBK2

0

transcriptional regulation

up-regulates quantity by expression

0.522

Transcriptional coactivator PGC-1α integrates the mammalian clock and energy metabolism. Here we show that PGC-1alpha (Ppargc1a), a transcriptional coactivator that regulates energy metabolism, is rhythmically expressed in the liver and skeletal muscle of mice. PGC-1alpha stimulates the expression of clock genes, notably Bmal1 (Arntl) and Rev-erbalpha (Nr1d1), through coactivation of the ROR family of orphan nuclear receptors. Chromatin immunoprecipitation (ChIP) assays in HepG2 cells indicate that PGC-1α is present near RORE on the proximal Bmal1 promoter.These results indicate that PGC-1α activates Bmal1 transcription by altering the local chromatin environment from a repressive to an active state.

SIGNOR-268030

Q8N726

Q13207

0

transcriptional regulation

down-regulates quantity by repression

0.522

TBX2 and TBX3 function as transcriptional repressors and both have been shown to inhibit myogenesis (Carlson et al, 2002; Zhu et al, 2014). Abnormal expression of TBX2 has been reported in several cancers including breast, pancreas, and melanoma, where it has been shown to drive proliferation (reviewed in Abrahams et al (2010)). As has been previously shown in other cell types, TBX2 was found to induce a downregulation of p14/19ARF and function as a direct repressor of p21 in RMS

SIGNOR-249594

Q9NR28

Q16611

0

relocalization

up-regulates

0.522

Bax and/or bak-mediated release of pro-apoptotic mediators including smac/diablo and omi

SIGNOR-118905

P32927

P29350

0

dephosphorylation

down-regulates

0.522

However, inhibition of shp2 binding to betac, did not prevent tyrosine phosphorylation of shp2. Interestingly, this same phosphopeptide served as a substrate for the tyrosine phosphatase activity of both shp1 and shp2.

SIGNOR-114597

P06737

Q9Y572

0

binding

up-regulates

0.522

Rip3 directly interacts with glycogen phosphorylase (pygl), glutamate ammonia ligase (glul), and glutamate dehydrogenase 1 (glud1). Rip kinase activity is required to enhance the activities of all three enzymes both in vivo and in vitro.

SIGNOR-186939

P63000

Q96BY6

0

guanine nucleotide exchange factor

up-regulates activity

0.522

We therefore developed a screening-compatible live-cell imaging assay, using FRET-based biosensors for the prototype GTPases RHOA, RAC1 and CDC4215,19,20 (Extended Data Fig. 2 and Supplementary Note 1)|We found catalytic activities for 45/75 RhoGEFs and 48/63 RhoGAPs| Our data thus not only reveal extensive promiscuity among regulators, but also that the inactivating RhoGAPs are less selective than the activating RhoGEFs (p-value=0.02)(Supplementary Table 2).

SIGNOR-260549

Q01082

P36897

0

phosphorylation

up-regulates

0.522

This suggests that, upon stimulation with tgf-beta1, phosphorylation of elf could induce a conformational change that reduces its affinity for ankyrin and tropomyosin and facilitates an association with smad3 and smad4 instead.

SIGNOR-97626

P61224

P17612

0

phosphorylation

up-regulates

0.522

These results provide a mechanistic explanation for the differential effects of rap1 phosphorylation by pka on effector protein interaction. camp is one among several pathways leading to rap1 activation

SIGNOR-187410

P35244

P54727

0

binding

up-regulates activity

0.522

GG-NER is initiated by the GG-NER specific factor XPC-RAD23B, in some cases with the help of UV-DDB (UV-damaged DNA-binding protein). TC-NER is initiated by RNA polymerase stalled at a lesion with the help of TC-NER specific factors CSA, CSB, and XAB2. Both pathways require the core NER factors to complete the excision process|The core NER dual incision reaction has been reconstituted in vitro with purified factors using XPC-RAD23B, TFIIH, XPA, RPA, XPG, and ERCC1-XPF (Aboussekhra et al. 1995; Mu et al. 1995; Araujo et al. 2000).|The core NER dual incision reaction has been reconstituted in vitro with purified factors using XPC-RAD23B, TFIIH, XPA, RPA, XPG, and ERCC1-XPF (Aboussekhra et al. 1995; Mu et al. 1995; Araujo et al. 2000). Functional studies revealed that XPC-RAD23B is the initial damage recognition factor in this system, as the presence of XPC-RAD23B is required for assembly of the other core NER factors and progression through the NER pathway both in vitro and in vivo

SIGNOR-275700

P11168

P52945

0

transcriptional regulation

up-regulates quantity by expression

0.522

In conclusion, Pdx1 confers the expression of pancreatic β-cell-specific genes, such as genes encoding insulin, islet amyloid polypeptide, Glut2, and Nkx6.1.

SIGNOR-255540

Q5VWQ8

P98082

0

binding

up-regulates activity

0.521

In prostate cancer cells, DAB2IP was shown to be recruited by the adaptor protein DAB2/DOC2 to promote Ras inactivation and inhibition of MAPK signaling upon receptor stimulation.

SIGNOR-254744

O43524

Q9HBY8

0

phosphorylation

down-regulates activity

0.521

Protein kinase SGK mediates survival signals by phosphorylating the forkhead transcription factor FKHRL1 (FOXO3a)|However, SGK and Akt display differences with respect to the efficacy with which they phosphorylate the three regulatory sites on FKHRL1. While both kinases can phosphorylate Thr-32, SGK displays a marked preference for Ser-315 whereas Akt favors Ser-253. These findings suggest that SGK and Akt may coordinately regulate the function of FKHRL1 by phosphorylating this transcription factor at distinct sites. The efficient phosphorylation of these three sites on FKHRL1 by SGK and Akt appears to be critical to the ability of growth factors to suppress FKHRL1-dependent transcription, thereby preventing FKHRL1 from inducing cell cycle arrest and apoptosis.

SIGNOR-249130

Q99835

P48729

0

phosphorylation

up-regulates

0.521

We demonstrate that mammalian Smo (mSmo) is activated through multi-site phosphorylation of its carboxyl-terminal tail by CK1α and GRK2. Phosphorylation of mSmo induces its active conformation and simultaneously promotes its ciliary accumulation.

SIGNOR-174542

A1X283

P12931

0

phosphorylation

up-regulates activity

0.521

C-Src-mediated phosphorylation of NoxA1 and Tks4 induces the reactive oxygen species (ROS)-dependent formation of functional invadopodia in human colon cancer cells|Here, we show that the interaction of noxa1 and tks proteins is dependent on src activity. Interestingly, the abolishment of src-mediated phosphorylation of tyr110 on noxa1 and of tyr508 on tks4 blocks their binding and decreases nox1-dependent ros generation.

SIGNOR-264705

Q14457

P00533

0

phosphorylation

down-regulates activity

0.521

The mechanism by which EGFR suppresses Beclin 1 function involves EGFR interaction with two domains (BH3 and ECD) of Beclin 1; EGFR mediated multisite tyrosine phosphorylation of Beclin 1 on residues Y229, Y233 and Y352; and EGFR mediated alterations in the Beclin 1 interactome (increased binding to the negative regulators, Bcl-2 and Rubicon, and decreased binding to the VPS34 lipid kinase).|Thus, EGFR signaling suppresses autophagy via its interaction with Beclin 1 during normal mitogenic signaling as well as during aberrant cell proliferation in cancer cells.

SIGNOR-278357

P62834

P17612

0

phosphorylation

down-regulates activity

0.521

Phosphorylation of Rap1A by PKA abolished its binding activity to CRR. a mutant Rap1A(S180E), whose sole PKA phosphorylation residue, Ser-180, was substituted by an acidic residue, Glu, to mimic its phosphorylated form, failed to suppress Ras-dependent Raf-1 activation in COS-7 cells.

SIGNOR-250042

Q92900

Q9HCE1

0

binding

up-regulates activity

0.521

MOV10 has been shown to promote mRNA degradation by associating with UPF1, this activity requires the helicase activity of MOV10.

SIGNOR-261139

P60953

Q8WWN8

0

gtpase-activating protein

down-regulates activity

0.521

We therefore developed a screening-compatible live-cell imaging assay, using FRET-based biosensors for the prototype GTPases RHOA, RAC1 and CDC4215,19,20 (Extended Data Fig. 2 and Supplementary Note 1)|We found catalytic activities for 45/75 RhoGEFs and 48/63 RhoGAPs| Our data thus not only reveal extensive promiscuity among regulators, but also that the inactivating RhoGAPs are less selective than the activating RhoGEFs (p-value=0.02)(Supplementary Table 2).

SIGNOR-260457

P48454

P0DP24

0

binding

up-regulates

0.521

Calcium-bound calmodulin associates with calcineurin (cn), releasing the phosphatase from the repressive effects on an autoinhibitory domain.

SIGNOR-266324

Q12933

O95819

0

phosphorylation

down-regulates quantity

0.521

A key finding of our study is that HGK induces lysosomal degradation of TRAF2 by directly phosphorylating TRAF2 Ser35.|Conversely, TRAF2 levels were decreased by ectopically expressed HGK in an overexpression system (XREF_FIG).

SIGNOR-279536

O95295

O43567

0

polyubiquitination

up-regulates activity

0.521

RNF13 directly interacted with snapin, a SNAP-25-interacting protein. Interestingly, snapin was ubiquitinated by RNF13 via the lysine-29 conjugated polyubiquitin chain, which in turn promoted the association of snapin with SNAP-25. Consistently, we found an attenuated interaction between snapin and SNAP-25 in the RNF13-null mice. Therefore, these results suggest that RNF13 is involved in the regulation of the SNARE complex, which thereby controls synaptic function.

SIGNOR-272044

Q5JWF2

P32245

0

null

up-regulates activity

0.521

We hypothesize that XLŒ±s may be involved in this regulatory loop by coupling to melanocortin receptors 3 and 4 in the hypothalamus.

SIGNOR-253067

O43524

Q16539

0

phosphorylation

up-regulates

0.521

Ogether, our results suggest that p38 phosphorylation of foxo3a on ser-7 is essential for its nuclear relocalization in response to doxorubicin

SIGNOR-177927

Q9BXW9

Q9NS91

0

ubiquitination

up-regulates activity

0.521

In summary, these findings suggest a model, where Rad18 promotes monoubiquitination of FANCD2, and associates with a functional complex involving Rad51, BRCA2, and FANCD2 in the repair of CPT induced stalled or collapsed forks.|In this study we focused on the role of Rad18 mediated activation of FANCD2 and its functional relationship with BRCA2 and Rad51 proteins in repair of CPT induced lesions.

SIGNOR-278712

Q9NRA0

P27361

0

phosphorylation

up-regulates

0.521

Sphingosine kinase type 2 activation by erk-mediated phosphorylation. site-directed mutagenesis indicated that hsphk2 is phosphorylated on ser-351 and thr-578 by erk1

SIGNOR-153387

P21731-2

P17252

0

phosphorylation

down-regulates activity

0.521

These data suggest a model whereby agonist-induced PKC phosphorylation of Ser(145) partially impairs TPbeta signalling while GRK2/3 phosphorylation at both Ser(239) and Ser(357) within its IC(3) and C-tail domains, respectively, sterically inhibits G-protein coupling, profoundly desensitizing signalling, and promotes beta-arrestin association and, in turn, facilitates TPbeta internalization.

SIGNOR-274092

P63092

P32245

0

binding

up-regulates activity

0.521

The melanocortin (MC) receptor family consists of five Gs-coupled receptors that control various physiological functions in response to four distinct agonists, adrenocorticotropic hormone (ACTH, also known as corticotrophin) and alpha, beta, and gamma melanocyte-stimulating hormone (MSH), which are derived from the proopiomelanocortin precursor protein, and two inverse agonists, agouti and agouti-related proteins

SIGNOR-268707

P55072

O00124

0

relocalization

down-regulates quantity

0.521

The human protein named Rep8 or Ubxd6 as a new cofactor of p97. Rep8 tethers p97 to the ER membrane for efficient ER-associated degradation.

SIGNOR-261002

P63092

P34969

0

binding

up-regulates activity

0.521

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-256783

P42338

P21860

0

binding

up-regulates

0.521

Pi3k is the sole binding partner to six tyrosines of erbb3 and one in erbb4.

SIGNOR-146864

P07101

P49137

0

phosphorylation

up-regulates activity

0.52

MAPKAP-K2 phosphorylates both Ser19 and Ser40 of TH. Tyrosine hydroxylase (TH) has been reported to require binding of 14-3-3 proteins for optimal activation by phosphorylation.

SIGNOR-250149

P11441

Q9UKV5

0

polyubiquitination

down-regulates activity

0.52

USP13 and gp78 control ubiquitination of Ubl4A.These data suggest that USP13 and gp78 play antagonizing roles in regulation of Ubl4A ubiquitination: While gp78 assembles ubiquitin chains on Ubl4A, USP13 antagonizes this activity to limit Ubl4A ubiquitination.Ubiquitination of Ubl4A preferentially occurs on Lys48. We identify the Bag6 cofactor Ubl4A as a shared substrate of gp78 and USP13. USP13 depletion is associated with hyper-ubiquitination of Ubl4A and altered interaction between the Bag6 complex and its co-chaperone SGTA. Because the interaction of Ubl4A with SGTA is mediated by positively-charged residues in Ubl4A including Lys48 (Chartron et al., 2012; Xu et al., 2012), which happens to be the major ubiquitination site, the simplest model to explain reduced Bag6-SGTA interaction in USP13 knockdown cells is that ubiquitin conjugates on Ubl4A sterically hinder SGTA binding.

SIGNOR-272856

O15151

O14757

0

phosphorylation

down-regulates activity

0.52

MDMX is a direct substrate for Chk1 and Chk2 in vitro. Phosphorylation of MDMX leads to increased binding to MDM2 and more efficient ubiquitination, providing an explanation for the enhanced degradation of MDMX after DNA damage. | Western blot showed that Chk1 modified S342 and S367, but with strong preference for S342.

SIGNOR-250770

P07320

P02511

0

binding

up-regulates activity

0.52

Human gamma-crystallins are long-lived, unusually stable proteins of the eye lens exhibiting duplicated, double Greek key domains. The lens also contains high concentrations of the small heat shock chaperone alpha-crystallin, which suppresses aggregation of model substrates in vitro. Mature-onset cataract is believed to represent an aggregated state of partially unfolded and covalently damaged crystallins. The alphaB-crystallin oligomers formed long-lived stable complexes with their gammaD-crystallin substrates. These in vitro results provide support for protein unfolding/protein aggregation models for cataract, with alpha-crystallin suppressing aggregation of damaged or unfolded proteins through early adulthood but becoming saturated with advancing age.

SIGNOR-253621

O95622

P19086

0

binding

down-regulates activity

0.52

Activated a z inhibits the activity of type I and type V adenylyl cyclases.

SIGNOR-278045

P14373

Q9UJ55

0

binding

up-regulates activity

0.52

MAGE proteins are a family of proteins that contain a conserved domain known as the MAGE homology domain. Recently, we showed that MAGE proteins function biochemically to bind to and enhance the activity of E3 RING ubiquitin ligases. The E3 RING ubiquitin ligase TRIM27 was identified as a major binding partner of MAGE-L2.

SIGNOR-253513

P04637

O14920

0

phosphorylation

up-regulates activity

0.52

Here , we show that IKKbeta modulates the activity of p53 in response to glutamine depletion to promote cancer cell adaptation .|Taken together, these results indicate that IKK\u03b2 phosphorylates p53 on Ser392 as an early response to glutamine deprivation and possibly later facilitates its phosphorylation at Ser15 and transcriptional activity.

SIGNOR-278516

P15923

P49137

0

phosphorylation

up-regulates

0.52

Neverthless, some transcription factors, such as e47, er81, srf and creb are also phosphorylated by mk2

SIGNOR-166643