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
Q04206	P35813	0	dephosphorylation	down-regulates activity	0.353	23 Here we show that PPM1A directly dephosphorylated RelA at S536 and S276, with resultant inhibition of NF-kappaB transactivation and decreased expression of target genes, notably including MCP-1 and CCL2.\|Taken together, these data suggest that dephosphorylation of S276 by PPM1A may contribute to inhibit RelA transcriptional activity, but the majority of PPM1A activity to inhibit RelA transcription relies on dephos phorylation of S536 of RelA.\|We show that PPM1A directly dephosphorylated RelA at residues S536 and S276 and selectively inhibited Nuclear factor-\u03baB transcriptional activity, resulting in decreased expression of monocyte chemotactic protein-1/chemokine (C-C motif) ligand 2 and interleukin-6, cytokines implicated in cancer metastasis.	SIGNOR-276963
Q9H6L5	Q13554	0	phosphorylation	up-regulates activity	0.2	Under ER-stress conditions, activated CAMK2B phosphorylates the reticulon-homology domain of FAM134B, which enhances FAM134B oligomerization and activity in membrane fragmentation to accommodate high demand for ER-phagy.	SIGNOR-273554
P06239	P16885	1	phosphorylation	up-regulates	0.558	In vitro phosphorylation experiments with recombinant plcgamma2 and recombinant lck, fyn, and lyn tyrosine kinases showed that phosphorylation of plcgamma2 led to activation of the recombinant enzyme.	SIGNOR-91477
P78352	Q96NR3	2	binding	up-regulates quantity	0.2	Using Western blotting, we validated our MS approach confirming the binding of Dgl4 (also known as PSD95) and VPS35 to the recombinant Ptchd1 C terminus. Endogenous DLG4 and VPS35 from membrane and soluble mouse brain fractions were recovered specifically on the GST fusion proteins containing the cytoplasmic but not the extracellular, negative control sequences of Ptchd1 (Fig. 5E). Binding of DLG4 was dependent on the PDZ-binding motif in Ptchd1, whereas VPS35 binding was not (Fig. 5E). These results demonstrate a biochemical interaction of Ptchd1 with postsynaptic trafficking proteins in the mouse brain. Together, these data suggest that loss of Ptchd1 results in severe alterations in synaptic function in the dentate gyrus	SIGNOR-266652
Q5XX13	P45973	2	binding	down-regulates quantity by destabilization	0.2	As expected, the SKP1 and CUL1 proteins, subunits of all F-box-containing E3 ligases, were also present in the immune complexes containing FBXO10 and BCL2. To test for FBXO10-induced ubiquitination of BCL2, 293T cells were transduced with retroviral vectors expressing Flag-tagged FBXO10, MYC-tagged BCL2, and HA-tagged ubiquitin, and cells were treated with the proteasome inhibitor PS-341 to enhance the detection of ubiquitinated proteins.Together, these data suggest that FBXO10 is a component of a ubiquitin ligase that can target BCL2 protein for degradation.	SIGNOR-271933
Q96QB1	Q00535	0	phosphorylation	up-regulates activity	0.2	The CDK5 kinase phosphorylates four serines in DLC1 located N-terminal to the Rho-GAP domain. When not phosphorylated, this N-terminal region functions as an autoinhibitory domain that places DLC1 in a closed, inactive conformation by efficiently binding to the Rho-GAP domain. CDK5 phosphorylation reduces this binding and orchestrates the coordinate activation DLC1, including its localization to focal adhesions, its Rho-GAP activity, and its ability to bind tensin and talin.	SIGNOR-276444
Q15326	Q7Z589	2	binding	up-regulates activity	0.2	The binding sites for HP1β and BS69 with EMSY abut each other, and are found directly adjacent to the ENT domain of EMSY. This demonstrates that EMSY has the capacity to contact directly at least two proteins which contain a Royal Family domain. Since this domain is found in proteins with a chromatin connection, we assume that EMSY functions, at least partly, in the regulation of chromatin.	SIGNOR-263916
Q9HC29	O43353	2	binding	up-regulates activity	0.765	The function of NOD2 could be to recruit RICK at the plasma membrane to form an active complex able to activate part of the NF-κB pathway. NOD2 induces a membrane recruitment of RICK that is dependent on a CARD-CARD interaction.	SIGNOR-252402
P58753	Q9Y4K3	2	binding	up-regulates activity	0.739	Mal interaction with TRAF6 is required for NF-κB transactivation	SIGNOR-280461
Q96RT7	O00444	0	phosphorylation	up-regulates activity	0.701	Plk4 interacts with and phosphorylates GCP6. we show that GCP6 is an integral component of the centriole and required for centriole duplication. Moreover, we find that GCP6 interacts in vitro and in vivo with Plk4. We show that phosphorylation of GCP6 by Plk4 is required for Plk4-induced centriole overduplication.	SIGNOR-262902
P30559	P50148	2	binding	up-regulates activity	0.552	OT binds to its cognate G protein–coupled receptor (OTR) and exerts diverse effects, including stimulation (Gs) or inhibition (Gi/o) of adenylyl cyclase, stimulation of potassium channel currents (Gi), and activation of phospholipase C (Gq).	SIGNOR-270332
Q08050	O96017	0	phosphorylation	up-regulates	0.721	Chk2 mediates stabilization of the foxm1 transcription factor to stimulate expression of dna repair genesthis phosphorylation of foxm1 on serine residue 361 caused increased stability of the foxm1 protein	SIGNOR-150746
P54646	Q92574	1	phosphorylation	up-regulates	0.551	Under energy starvation conditions, the amp-activated protein kinase (ampk) phosphorylates tsc2 and enhances its activity.	SIGNOR-119541
Q5FWF5	P06493	0	phosphorylation	down-regulates	0.474	We show here that eco1 degradation requires the sequential actions of cdk1 and two additional kinases , cdc7-dbf4 and the gsk-3 homolog mck1.	SIGNOR-200400
P35637	Q8WXD5	1	relocalization	up-regulates activity	0.2	Here, we report that FUS associates with the SMN complex, mediated by U1 snRNP and by direct interactions between FUS and SMN.\|The FUS IP and pulldown revealed that FUS also associates with components of the SMN complex, including SMN and Gemins 4 and 6 \|Remarkably, the number of SMN-stained nuclear bodies was dramatically reduced in the FUS knockdown cells	SIGNOR-262106
P42262	Q9NRD5	2	binding	up-regulates activity	0.807	RAB39B directs GluA2 trafficking in neurons. GTP-bound RAB39B interacts with PICK1. In line with evidence that PICK1 can dimerize, the structural model suggests that dimerization of PICK1 is a prerequisite for simultaneous recognition of both RAB39B and GluA2 each by one of the PICK1 molecules in the PICK1 dimer (Fig. 6a–c). The existence of such complex is supported by our co-immunoprecipitation experiments shown above.	SIGNOR-264046
P78527	Q9UGP5	1	phosphorylation	up-regulates activity	0.467	We show that Polλ is efficiently phosphorylated by DNA-PKcs in vitro and predominantly by ATM after DSB induction with ionizing radiation (IR) in vivo. We identify threonine 204 (T204) as a main target for ATM/DNA-PKcs phosphorylation on human Polλ, and establish that its phosphorylation may facilitate the repair of a subset of IR-induced DSBs and the efficient Polλ-mediated gap-filling during NHEJ.	SIGNOR-273835
Q03405	P04264	2	binding	up-regulates activity	0.288	Cytokeratin 1 binds to both gC1qR and u-PAR. Our data suggest that formation of HK (and Factor XII) binding sites along endothelial cell membranes consists of bimolecular com-plexes of gC1qR-cytokeratin 1 and u-PAR-cytokeratin 1, with gC1qR binding being favored.	SIGNOR-251880
Q05513	O14920	1	phosphorylation	up-regulates activity	0.517	Activation of IkappaB kinase beta by protein kinase C isoforms. \| Interestingly, recombinant active zetaPKC and alphaPKC are able to stimulate in vitro the activity of IKKbeta but not that of IKKalpha. In addition, evidence is presented here that recombinant zetaPKC directly phosphorylates IKKbeta in vitro, involving Ser177 and Ser181. Collectively, these results demonstrate a critical role for the PKC isoforms in the NF-kappaB pathway at the level of IKKbeta activation and IkappaB degradation.	SIGNOR-249015
Q16584	P46734	1	phosphorylation	up-regulates activity	0.492	Immunoprecipitated mlk-3 catalyzed the phosphorylation of sek1 in vitro, and co-transfected mlk-3 induced phosphorylation of sek1 and mkk3 at sites required for activation, suggesting direct regulation of these protein kinases.	SIGNOR-45788
Q9UPN4	O00444	0	phosphorylation	up-regulates activity	0.534	We conclude that PLK4 phosphorylates CEP131 at Ser 78 to maintains centriolar satellite integrity.	SIGNOR-280075
Q68D86	Q5TZA2	2	binding	up-regulates activity	0.2	CCDC102B is recruited to the centrosome by C-Nap1 (also known as CEP250) and interacts with the centrosome linker components rootletin and LRRC45. CCDC102B decorates and facilitates the formation of rootletin filaments. Furthermore, CCDC102B is phosphorylated by Nek2A (an isoform encoded by NEK2) and is disassociated from the centrosome at the onset of mitosis.	SIGNOR-275628
P29323	P00519	0	phosphorylation	down-regulates	0.515	Two-hybrid screens identified regions of abl and arg that bind to the ephb2 and epha4 receptors, suggesting a novel signaling connection involving the two kinase families.The connection between EphB2 and Abl/Arg appears to be reciprocal. Activated EphB2 causes tyrosine phosphorylation of Abl and Arg, and vice versa. Interestingly, treatment of COS cells and B35 neuronal-like cells with ephrin-B1 to activate endogenous EphB2 decreased the kinase activity of endogenous Abl.	SIGNOR-109668
P28336	P63096	2	binding	up-regulates activity	0.268	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-257047
Q07869	Q7LBC6	0	transcriptional regulation	up-regulates quantity by expression	0.2	We show that Jhdm2a expression is induced by beta-adrenergic stimulation, and that Jhdm2a directly regulates peroxisome proliferator-activated receptor alpha (Ppara) and Ucp1 expression.	SIGNOR-266637
P08908	P08754	2	binding	up-regulates activity	0.57	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-256836
P68400	Q99808	1	phosphorylation	up-regulates activity	0.2	These data suggest that inhibition of CK2-mediated phosphorylation at Ser254 had the same effect on transporter function as the actual loss of Ser254 in mENT1a, implying that this site is constitutively phosphorylated by CK2.	SIGNOR-276063
P05771	P61764	1	phosphorylation	down-regulates activity	0.398	Munc18a is essential for neurotransmitter release by exocytosis and can be phosphorylated by PKC in vitro on Ser-306 and Ser-313. We demonstrate that it is phosphorylated on Ser-313 in response to phorbol ester treatment in adrenal chromaffin cells. Mutation of both phosphorylation sites to glutamate reduces its affinity for syntaxin and so acts as a phosphomimetic mutation.	SIGNOR-249186
Q96BY7	Q9Y484	2	binding	up-regulates activity	0.648	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-268484
Q16512	Q16539	1	phosphorylation	up-regulates	0.378	At the same time, rho signals to c-jun n-terminal kinase (jnk) and p38 through rock and protein kinase n (pkn), leading to the transcriptional regulation of jun	SIGNOR-152765
Q71UI9	Q14493	0	translation regulation	up-regulates quantity by expression	0.2	Synthesis of mature histone mRNA requires only a single processing reaction: an endonucleolytic cleavage between a conserved stem-loop and a purine-rich downstream element to form the 3' end. The stem-loop binding protein (SLBP) is required for processing, and following processing, histone mRNA is transported to the cytoplasm, where SLBP participates in translation of the histone mRNA\|We used radiolabeled probes generated by PCR targeting the open reading frame (ORF) to detect histones H2A, H2B, H3, H4, and H1 and used 7SK snRNA as a loading control (Fig. 2A). The abundance of histone H2A, H2B, H3, and H4 mRNAs is reduced to 37% to 70% of control levels in the SLBP knockdown cells when compared to the C2 control.	SIGNOR-265410
P27361	P49137	1	phosphorylation	up-regulates	0.475	Erk phosphorylates multiple cytoplasmatic and cytoskeletal proteins, including mapk-activated protein kinases and the ribosomal p70-s6 kinase	SIGNOR-201687
P06213	P22681	2	phosphorylation	up-regulates activity	0.528	Insulin receptor phosphorylates Cbl on tyrosines 371, 700, and 774 in the presence of APS. This phosphorylation event is required for the recruitment of Crk to the CAP/Cbl complex and for the subsequent activation of GLUT4 translocation.	SIGNOR-251304
Q15139	Q13671	1	phosphorylation	down-regulates	0.402	Rin1 also binds to 14-3-3 proteins through a sequence including serine 351. Mutation of this residue abolished the 14-3-3 binding capacity of rin1 and led to more efficient blockade of ras-mediated transformation. The mutant protein, rin1(s351a), showed a shift in localization to the plasma membrane. Serine 351 is a substrate for protein kinase d (pkd [also known as pkcmu]) in vitro and in vivo. These data suggest that the normal localization and function of rin1, as well as its ability to compete with raf, are regulated in part by 14-3-3 binding, which in turn is controlled by pkd phosphorylation.	SIGNOR-113960
O43318	P46937	1	phosphorylation	down-regulates activity	0.338	TAK1 inhibits YAP activity through beta-TRCP.\|Thus, our data indicate that TAK1 directly phosphorylates YAP at multiple sites.\|These observations prompted us to test whether TAK1 phosphorylates YAP at S127.	SIGNOR-278956
Q00536	O43663	1	phosphorylation	up-regulates activity	0.344	Mechanistically, CDK16 exerts its function by phosphorylating protein regulator of cytokinesis 1 (PRC1) to regulate spindle formation during mitosis.\|Indeed, immunoblot analysis showed that PRC1 phosphorylation at the T481 site (CDK-dependent major phosphorylation site) fluctuated with the abundance of CDK16 protein in the cell cycle process	SIGNOR-273017
Q15418	Q9H6Z4	1	phosphorylation	up-regulates quantity	0.319	RSK phosphorylates RanBP3 at Serine 58 residue in vitro and in vivo.RanBP3 phosphorylation increases its affinity towards Ran	SIGNOR-276149
Q07812	Q9UPU5	0	deubiquitination	up-regulates quantity by stabilization	0.2	In this study, several cancer-related proteins (Bax, p300, E2F4 and securin) have been proven to be substrates of ubiquitin-specific peptidase 24 (USP24), and relevance has been shown between USP24 and its substrates in samples from clinical lung cancer patients. \|Knockdown of USP24 decreases Bax and p300 levels	SIGNOR-275606
Q9UPT6	Q13464	0	phosphorylation	up-regulates	0.332	Identification of rock1 as an upstream activator of the jip-3 to jnk signaling axis in response to uvb damage. phosphorylation of jip-3 by rock1 was crucial for the recruitment of jnk. Inhibition of the activity of rock1 in keratinocytes resulted in decreased activation of the jnk pathway and thus a reduction in apoptosis.	SIGNOR-134588
Q13485	Q15796	2	binding	up-regulates activity	0.721	the receptor-regulated Smad, such as Smad2, forms a heterocomplex with the co-mediator Smad, Smad4	SIGNOR-235183
P29350	P35222	1	dephosphorylation	down-regulates quantity by destabilization	0.558	Because SHP-1 can dephosphorylate residues Y86 and Y654 on the \u03b2-catenin protein, these residues were therefore mutated into phenylalanine and the transcriptional activity of the subsequent \u03b2-catenin mutants analyzed: \u03b2-catenin/Y86F, \u03b2-catenin/Y654F and \u03b2-catenin/Y86F/Y654F. As shown in Fig.\u00a03 B, the mutants \u03b2-catenin/Y86F, \u03b2-catenin/Y654F and \u03b2-catenin/Y86F/Y654F had a significantly reduced transcriptional activity in comparison to wild-type \u03b2-catenin.\|SHP-1 inhibits \u03b2-catenin function by inducing its degradation and interfering with its association with TATA-binding protein.	SIGNOR-277014
Q12913	P19174	1	dephosphorylation	down-regulates	0.369	Cd148 can dephosphorylate lat and plc?1 In vitro. / plc?1 Undergoes inducible tyrosine phosphorylation following tcr stimulation (46), and this phosphorylation is required to stimulate its catalytic activity	SIGNOR-105790
O94907	O75581	2	binding	down-regulates	0.904	We report that dkk-1 is a high-affinity ligand for lrp6 and inhibits wnt signaling by preventing fz-lrp6 complex formation induced by wnt. Dkk1 has been shown to inhibit wnt by binding to and antagonizing lrp5/6.	SIGNOR-109247
P13807	P17612	0	phosphorylation	down-regulates activity	0.508	The results presented in this paper show that the phosphorylation of glycogen synthetase a by cyclic AMP-dependent protein kinase results in the phosphorylation of two distinct serines termed site-l and site-2, which account for 90% of the total phosphorylation	SIGNOR-253009
Q9H1C0	P19086	2	binding	up-regulates activity	0.2	Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. \| We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. \| The score associated to this interaction has a LogRAi ≥ -1.0.	SIGNOR-257113
P23921	Q7LG56	2	binding	up-regulates activity	0.935	Taken together, we conclude that UV-induced activation of p53R2 transcription and binding of p53R2 to hRRM1 to form RR holoenzyme are impaired in the p53-mutant cell line PC3.	SIGNOR-259366
Q9H1E3	P06493	0	phosphorylation	down-regulates activity	0.474	putative phosphorylation site for Cdk1 is present in the DNA-binding domain peptide. This site, corresponding to Ser 181 in the NUCKS primary structure, is phosphorylated in vitro by Cdk1 with a Km of approximately 35 μM [7]. Phosphorylation of Ser 181 in the synthetic, DNA-binding domain peptide reduces its affinity for DNA-by 100%.	SIGNOR-261959
P52757	P12931	0	phosphorylation	down-regulates	0.2	Here we report that beta2-chimaerin is tyrosine-phosphorylated by src-family kinases (sfks) upon cell stimulation with epidermal growth factor (egf). Mutational analysis identified tyr-21 in the n-terminal regulatory region as a major phosphorylation site. these results suggest tyr-21 phosphorylation as a novel, sfk-dependent mechanism that negatively regulates beta2-chimaerin rac-gap activity.	SIGNOR-155713
P27986	P35813	0	dephosphorylation	up-regulates activity	0.324	Protein phosphatase-2C alpha as a positive regulator of insulin sensitivity through direct activation of phosphatidylinositol 3-kinase in 3T3-L1 adipocytes\|PP2Cα dephosphorylates the p85 subunit of PI3K, and dephosphorylation of the p85 subunit of PI3K at Ser608 increases its activity	SIGNOR-248489
Q9GZU7	P78527	1	dephosphorylation	up-regulates activity	0.2	CTDSP1 activates DNA-PKcs and enhances DNA-PKcs dependent topoI degradation in response to irinotecan .\|Our novel finding indicates that CTDSP1 dephosphorylates DNA-PKcs, changes its kinase activity, and regulates irinotecan-induced topoI degradation.	SIGNOR-277101
Q12772	P27169	1	transcriptional regulation	up-regulates quantity by expression	0.297	we conclude that quercetin exhibits its antiatherogenic property by eliciting the translocation of the mature SREBP2 from endoplasmic reticulum to the nucleus, where it binds to SRE-like sequence in the PON1 promoter and up-regulates PON1 gene transcription and PON1 activity.	SIGNOR-255224
P10914	Q00987	0	ubiquitination	down-regulates quantity	0.388	HIV-1 Tat Recruits HDM2 E3 Ligase To Target IRF-1 for Ubiquitination and Proteasomal Degradation.\|IRF-1 ubiquitination by HDM2 is specifically increased during HIV-1 infection in the presence of increasing amounts of Tat and is mediated by the formation of a trimeric complex between Tat, IRF-1, and HDM2, as demonstrated by coimmunoprecipitation analysis (XREF_FIG).	SIGNOR-278590
P18146	Q9Y251	1	transcriptional regulation	up-regulates quantity by expression	0.37	Promoter CpG hypomethylation and transcription factor EGR1 hyperactivate heparanase expression in bladder cancer.	SIGNOR-254267
Q05397	P06213	0	phosphorylation	up-regulates activity	0.353	P125(Fak) sequence comprising amino acids 568-582, which contains tyrosines 576 and 577 of the kinase domain regulatory loop, is phosphorylated by the insulin receptor. p125(Fak) phosphorylation by the receptor results in its activation.	SIGNOR-251323
Q92900	Q96Q15	0	phosphorylation	up-regulates	0.971	Smg-1 directly phosphorylates upf1 helicase, another key component of nmd, upon recognition of ptc on postspliced mrna during the initial round of translation. Phosphorylated-upf1 recruits the smg-5/smg-7 complex to induce ribosome dissociation and decapping-mediated decay. T28 and s1096 are responsible for phospho-specific recruitment of smg-6 to the n-terminal conserved region, and the smg-5/smg-7 heterodimer complex to the c-terminal sq-rich region of upf1, respectively	SIGNOR-200785
O15444	Q9NPB9	2	binding	up-regulates activity	0.664	In the present study, however, we demonstrate for the first time the concentration-dependent recruitment of β-arrestins to the atypical chemokine receptor CCX-CKR upon stimulation with CCL19, CCL21, or CCL25 using three different methodologies in various transfected cell lines.	SIGNOR-268418
P17612	Q6J4K2	1	phosphorylation	up-regulates activity	0.2	However, the PDE2-inhibitory effect is eliminated when the mitochondrial S258A NCLX mutant that mimics a non-PKA phosphorylated state of NCLX is expressed. Altogether, our findings indicate that NCLX is regulated by the mitochondrial PDE2A2 form.\|We show that caffeine, by inhibiting PDE2, enhances PKA phosphorylation leading to mitochondrial NCLX activation, thereby reducing neuronal excitotoxicity and enhancing learning in mice. \|Moreover, PDE2 acts by diminishing mitochondrial cAMP, thus promoting NCLX phosphorylation at its PKA site.	SIGNOR-275727
Q03167	P05111	2	binding	down-regulates	0.589	Type iii tgf-beta receptor, betaglycan, can function as an inhibin co-receptor with actrii. Betaglycan binds inhibin with high affinity and enhances binding in cells co-expressing actrii and betaglycan. ability of betaglycan to facilitate inhibin antagonism of activin	SIGNOR-76470
O43602	P45983	0	phosphorylation	up-regulates activity	0.286	DCX phosphorylation by JNK1 is required for glioma suppression.	SIGNOR-279217
Q9Y5P2	Q96EB6	2	binding	up-regulates activity	0.2	Here, we show that the previously undescribed CSAG2 protein is a direct activator of SIRT1. Biochemical studies revealed that CSAG2 directly binds to and stimulates SIRT1 activity toward multiple substrates. Importantly, CSAG2 enhances SIRT1‐mediated deacetylation of p53, inhibits p53 transcriptional activity, and improves cell survival in response to genotoxic stress.	SIGNOR-261670
Q9Y572	Q8NB16	1	phosphorylation	up-regulates activity	0.753	MLKL comprises a four-helical bundle tethered to the pseudokinase domain, which contains an unusual pseudoactive site. Although the pseudokinase domain binds ATP, it is catalytically inactive and its essential nonenzymatic role in necroptotic signaling is induced by receptor-interacting serine-threonine kinase 3 (RIPK3)-mediated phosphorylation.[...]S345, S347, and T349 in the MLKL activation loop were phosphorylated by RIPK3 in in vitro kinase assays	SIGNOR-266427
P25963	Q9UKB1	0	ubiquitination	down-regulates	0.542	We report here the identification of an ikappab-ubiquitin (ub) ligase complex containing the f-box/wd40-repeat protein, beta-trcp, a vertebrate homolog of drosophila slimb. beta-trcp binds to ikappabalpha only when the latter is specifically phosphorylated by an ikappab kinase complex. here we provide evidence that lysine residues 21 and 22 serve as the primary sites for signal-induced ubiquitination of i kappa b alpha.	SIGNOR-64317
P02747	Q07021	2	binding	down-regulates activity	0.399	Previous studies have shown that gC1qR inhibits aggregated IgG-mediated complement activation by binding to the gC1q site on C1q, thereby preventing IgG from binding to the gh’s (28), suggesting that the binding sites for gC1qR and IgG on C1q may be identical or at least overlapping.	SIGNOR-263404
P35414	P63096	2	binding	up-regulates activity	0.437	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-256681
Q92913	Q9UQD0	2	binding	down-regulates activity	0.406	Sodium channel fast inactivation is modulated by alpha subunit interaction with a family of cytoplasmic proteins termed fibroblast growth factor homologous factors (FHFs). In this paper, we report that all A-type FHFs exert rapid onset long-term inactivation on Nav1.6 and other sodium channels.	SIGNOR-253411
P16615	P23327	2	binding	down-regulates activity	0.374	Furthermore, a Ser96Asp HRC variant, which mimics constitutive phosphorylation of Ser96, diminished delayed aftercontractions in HRC null cardiac myocytes. This HRC phosphomimetic variant was also able to rescue the aftercontractions elicited by the Ser96Ala variant, demonstrating that phosphorylation of Ser96 is critical for the cardioprotective function of HRC. Phosphorylation of HRC on Ser96 regulated the interactions of HRC with both triadin and SERCA2a, suggesting a unique mechanism for regulation of SR Ca homeostasis.	SIGNOR-273662
Q9UKV5	Q92890	2	binding	up-regulates activity	0.2	Here we show that Ufd1 directly interacts with gp78 and functions as a cofactor. Ufd1 enhances the E3 activity of gp78, accelerates the ubiquitination and degradation of reductase, and eventually promotes receptor-mediated uptake of low-density lipoprotein.	SIGNOR-252425
Q86UR5	Q01668	2	binding	up-regulates activity	0.365	Here, we report an interaction of the C2B domain of RIM2α and RIM3γ with the C-terminus of the pore-forming α-subunit of CaV1.3 channels (CaV1.3α1), which mediate stimulus-secretion coupling at the ribbon synapses of cochlear inner hair cells (IHCs). In conclusion, we propose that RIM2α and RIM3γ directly interact with the C-terminus of the pore-forming subunit of CaV1.3 Ca2+ channels and positively regulate their plasma membrane expression in HEK293 cells.	SIGNOR-264358
Q9NRM7	Q9GZV5	1	phosphorylation	down-regulates	0.698	Activated lats1/2 in turn phosphorylate and inhibit yap/taz transcription co-activators	SIGNOR-175787
P06241	Q15858	1	phosphorylation	up-regulates activity	0.363	Our results demonstrate Fyn -mediated upregulation of Nav1.7 protein expression and tyrosine phosphorylation and identify two tyrosine residues within the DIII-DIV linker (L3) as Fyn phosphorylation sites.	SIGNOR-279614
Q15154	Q12798	1	relocalization	up-regulates	0.406	Rna silencing of pcm-1 leads to reduced assembly of centrin, pericentrin, and ninein at the centrosome	SIGNOR-94947
Q08379	P62820	0	relocalization	up-regulates activity	0.718	Here, we demonstrate that the cis ‐Golgi tethering protein GM130, complexed with GRASP65 and other proteins, forms a novel Rab1 effector complex that interacts with activated Rab1‐GTP in a p115‐independent manner and is required for coat protein II vesicle targeting/fusion with the cis ‐Golgi	SIGNOR-261285
O75581	P48729	0	phosphorylation	up-regulates	0.552	We show that wnt induces sequential phosphorylation of lrp6 by gsk3 and casein kinase 1, and this dual phosphorylation promotes the engagement of lrp6 with the scaffolding protein axin.Site ii, like site i, was phosphorylated, as detected by means of a phospho-specific antibody (ab1493, for phosphorylated t1493 in lrp6)	SIGNOR-143034
Q00535	Q16665	1	phosphorylation	up-regulates activity	0.259	In conclusion, we obtained compelling evidence that CDK5 directly stabilizes the transcription factor hypoxia inducible factor-1\u03b1 by phosphorylation, and thus promotes the formation of blood vessels.\|Mass spectrometry and site directed mutagenesis revealed a stabilizing phosphorylation of HIF-1\u03b1 at Ser687 by CDK5.	SIGNOR-279020
Q00653	O15111	0	phosphorylation	up-regulates activity	0.791	Ikkalfa phosphorylates p100, leading to its proteasomal processing to p52.	SIGNOR-124230
Q8N163	O15379	2	binding	down-regulates activity	0.254	Besides SIRT1, CCAR2 inhibits the activity of the histone-modifying enzymes SUV39H1 and HDAC3 [9, 10], thus playing an important role in chromatin structure regulation.	SIGNOR-267665
P34947	O75581	1	phosphorylation	up-regulates	0.548	we found that g protein-coupled receptor kinases 5 and 6 (grk5/6), traditionally known to phosphorylate and desensitize 7tm g protein-coupled receptors, directly phosphorylate the pppsp motifs on single transmembrane lrp6 and regulate wnt/lrp6 signaling	SIGNOR-23330
P12931	O75955	1	phosphorylation	up-regulates activity	0.335	Taken together, we conclude that mitochondrial c-Src phosphorylates flotillin-1 at Tyr56 and Tyr149, and that these phosphorylations are required for its interaction with CxII and the prevention of ROS production.	SIGNOR-273805
Q9Y5G0	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-265714
Q16513	O15553	1	phosphorylation	down-regulates activity	0.349	PKNs bind to human pyrin and phosphorylate S208 and S242. Pyrin forms an inflammasome when mutant or in response to bacterial modification of the GTPase RhoA. We found that RhoA activated the serine-threonine kinases PKN1 and PKN2 that bind and phosphorylate pyrin. Phosphorylated pyrin bound to 14-3-3 proteins, regulatory proteins that in turn blocked the pyrin inflammasome.	SIGNOR-275464
P04626	P01133	2	binding	up-regulates	0.791	To better understand the role of the egfr tyrosine kinase, we analyzed signaling by a kinase-inactive egfr (k721m) in erbb-devoid 32d cells. K721m alone exhibited no detectable signaling capacity, whereas coexpression of k721m with erbb2, but not erbb3 or erbb4, resulted in egf-dependent mitogen-activated protein kinase (mapk) activation. The kinase activity, but not tyrosine phosphorylation, of erbb2 was required for egf-induced mapk activation.	SIGNOR-106497
P32245	Q96G30	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
P19174	P63211	2	binding	up-regulates	0.409	Furthermore, this work suggested that the gbetagamma subunits released upon gi activation activated phospholipase c-gamma (plc-gamma) to produce inositol 3 phosphate (ip3) which would subsequently increase intracellular ca2+ abundance.	SIGNOR-199144
Q13485	P12757	2	binding	down-regulates activity	0.886	Thus, SnoN can interact with Smad4 and Smad2 and inhibit their abilities to activate transcription.	SIGNOR-71633
Q00534	P38936	2	phosphorylation	down-regulates activity	0.864	Here, we show that p21cip1 is associated with k cyclin both in overexpression models and in primary effusion lymphoma cells and is a substrate of the k cyclin/cdk6 complex, resulting in phosphorylation of p21cip1 on serine 130. This phosphoform of p21cip1 appeared unable to associate with cdk2 in vivo.	SIGNOR-144832
P06493	P46527	2	phosphorylation	down-regulates	0.655	Phosphorylation of kip1 on thr-187, by cdk1 and cdk2 leads to protein ubiquitination and proteasomal degradation.	SIGNOR-80230
Q9UNF0	P17612	0	phosphorylation	down-regulates activity	0.2	PKCα phosphorylates PACSIN2 at serine 313 in the linker region and decreases its membrane binding and tubulation activities. Phosphorylation of PACSIN2 at S313 negatively regulated protein interaction between NS5A and core, which affected viral assembly	SIGNOR-273799
P60510	Q6IN85	2	binding	up-regulates	0.2	Our data demonstrate that pp4r4 forms a novel cytosolic complex with pp4c, independent from the complexes containing pp4r1, pp4r2.PP4R3, and alpha4, and that the regulatory subunits of pp4c have evolved different modes of interaction with the catalytic subunit.	SIGNOR-180244
P49840	P13051	1	phosphorylation	down-regulates quantity by destabilization	0.2	Here we show that glycogen synthase kinase 3 (GSK-3) interacts with and phosphorylates UNG2 at Thr60 and that Thr60 phosphorylation requires a Ser64 priming phosphorylation event.\|phosphorylation of Thr60 and Ser64 creates a cyclin E/c-Myc-like phosphodegron that promotes polyubiquitylation and proteasome-mediated degradation	SIGNOR-264886
P23458	P29597	1	phosphorylation	up-regulates	0.527	These results indicate that tyk2 is activated by phosphorylation on tyr-1054 and/or tyr-1055 and that this phosphorylation requires another kinase, most likely jak1.	SIGNOR-43080
P08581	Q92990	1	relocalization	down-regulates	0.331	Significantly, nonphosphorylated hgf receptor prevents fap68 from stimulating p70s6k. fap68 binding to met requires the last 30 amino acids of the c-terminal tail, which are unique to the hgf receptor.	SIGNOR-110726
P15336	P31751	0	phosphorylation	up-regulates activity	0.426	Taken together, these data suggest that AMPK regulates EC migration through phosphorylation of AKT2, which promotes ATF2 transactivation of MMP-2 during EC migration.\|Within this subgroup, we chose AKT2 for analysis because AKT2 phosphorylates activating transcription factor 2 (ATF2) [ xref , xref ].	SIGNOR-280178
P43004	Q96PU5	0	ubiquitination	down-regulates quantity	0.304	Our results confirm that Nedd4-2 knockdown in MPTP treated mice increased GLT-1 expression at the membrane protein level (XREF_FIG; P < 0.01).\|These results suggest that Nedd4-2 mediates the ubiquitination of both GLT-1 and GLAST in the midbrain in MPTP treated mice, and Nedd4-2 maybe a potential target in regulating glutamate transporters in PD.	SIGNOR-278706
Q05086	P78352	1	ubiquitination	down-regulates quantity by destabilization	0.349	E6-induced degradation of DLG4 depends on E6AP in vivo. Our findings as a whole indicate that E6AP is involved in E6-mediated ubiquitination and degradation of DLG4 both in vivo and in vitro.	SIGNOR-271397
P37231	P14373	0	ubiquitination	down-regulates quantity by destabilization	0.289	Mechanically, TRIM27 ubiquitinates and degrades PPARgamma, following induces cleaved Caspase-3 and IL-1beta expression.	SIGNOR-278734
Q9NUX5	P35244	2	binding	down-regulates activity	0.263	The current model for how telomeres repress ATR signaling proposes that POT1/TPP1 prevents the binding of RPA to the single-stranded telomeric DNA	SIGNOR-263326
P24941	P50613	2	phosphorylation	up-regulates	0.571	Threonine-170 of cdk7 is phosphorylated in vitro by cdk2. Full activation of cdk7 requires phorylation of a conserved threonine residue at position 170 in its own t loop.	SIGNOR-85013
P12931	P10398	1	phosphorylation	up-regulates activity	0.489	A-raf behaves like raf-1, being weakly activated by oncogenic ras more strongly activated by oncogenic src, and these signals synergize to give maximal activation	SIGNOR-236459
Q92585	Q06413	2	binding	up-regulates	0.393	Unexpectedly, however, emerging evidence implicate maml proteins as exciting key transcriptional co-activators in other signal transduction pathways including: muscle differentiation and myopathies (mef2c), tumor suppressor pathway (p53) and colon carcinoma survival (beta-catenin).	SIGNOR-144913
P23759	P00519	0	phosphorylation	up-regulates activity	0.272	Furthermore, we show that c-Abl interacts with and phosphorylates Pax7 protein.\|Indeed, reporter gene assays indicate that c-Abl inhibition decreases Pax7 dependent activation of the 6xPRS9-luc reporter.	SIGNOR-279773

Q04206

P35813

0

dephosphorylation

down-regulates activity

0.353

23 Here we show that PPM1A directly dephosphorylated RelA at S536 and S276, with resultant inhibition of NF-kappaB transactivation and decreased expression of target genes, notably including MCP-1 and CCL2.|Taken together, these data suggest that dephosphorylation of S276 by PPM1A may contribute to inhibit RelA transcriptional activity, but the majority of PPM1A activity to inhibit RelA transcription relies on dephos phorylation of S536 of RelA.|We show that PPM1A directly dephosphorylated RelA at residues S536 and S276 and selectively inhibited Nuclear factor-\u03baB transcriptional activity, resulting in decreased expression of monocyte chemotactic protein-1/chemokine (C-C motif) ligand 2 and interleukin-6, cytokines implicated in cancer metastasis.

SIGNOR-276963

Q9H6L5

Q13554

0

phosphorylation

up-regulates activity

0.2

Under ER-stress conditions, activated CAMK2B phosphorylates the reticulon-homology domain of FAM134B, which enhances FAM134B oligomerization and activity in membrane fragmentation to accommodate high demand for ER-phagy.

SIGNOR-273554

P06239

P16885

1

phosphorylation

up-regulates

0.558

In vitro phosphorylation experiments with recombinant plcgamma2 and recombinant lck, fyn, and lyn tyrosine kinases showed that phosphorylation of plcgamma2 led to activation of the recombinant enzyme.

SIGNOR-91477

P78352

Q96NR3

2

binding

up-regulates quantity

0.2

Using Western blotting, we validated our MS approach confirming the binding of Dgl4 (also known as PSD95) and VPS35 to the recombinant Ptchd1 C terminus. Endogenous DLG4 and VPS35 from membrane and soluble mouse brain fractions were recovered specifically on the GST fusion proteins containing the cytoplasmic but not the extracellular, negative control sequences of Ptchd1 (Fig. 5E). Binding of DLG4 was dependent on the PDZ-binding motif in Ptchd1, whereas VPS35 binding was not (Fig. 5E). These results demonstrate a biochemical interaction of Ptchd1 with postsynaptic trafficking proteins in the mouse brain. Together, these data suggest that loss of Ptchd1 results in severe alterations in synaptic function in the dentate gyrus

SIGNOR-266652

Q5XX13

P45973

2

binding

down-regulates quantity by destabilization

0.2

As expected, the SKP1 and CUL1 proteins, subunits of all F-box-containing E3 ligases, were also present in the immune complexes containing FBXO10 and BCL2. To test for FBXO10-induced ubiquitination of BCL2, 293T cells were transduced with retroviral vectors expressing Flag-tagged FBXO10, MYC-tagged BCL2, and HA-tagged ubiquitin, and cells were treated with the proteasome inhibitor PS-341 to enhance the detection of ubiquitinated proteins.Together, these data suggest that FBXO10 is a component of a ubiquitin ligase that can target BCL2 protein for degradation.

SIGNOR-271933

Q96QB1

Q00535

0

phosphorylation

up-regulates activity

0.2

The CDK5 kinase phosphorylates four serines in DLC1 located N-terminal to the Rho-GAP domain. When not phosphorylated, this N-terminal region functions as an autoinhibitory domain that places DLC1 in a closed, inactive conformation by efficiently binding to the Rho-GAP domain. CDK5 phosphorylation reduces this binding and orchestrates the coordinate activation DLC1, including its localization to focal adhesions, its Rho-GAP activity, and its ability to bind tensin and talin.

SIGNOR-276444

Q15326

Q7Z589

2

binding

up-regulates activity

0.2

The binding sites for HP1β and BS69 with EMSY abut each other, and are found directly adjacent to the ENT domain of EMSY. This demonstrates that EMSY has the capacity to contact directly at least two proteins which contain a Royal Family domain. Since this domain is found in proteins with a chromatin connection, we assume that EMSY functions, at least partly, in the regulation of chromatin.

SIGNOR-263916

Q9HC29

O43353

2

binding

up-regulates activity

0.765

The function of NOD2 could be to recruit RICK at the plasma membrane to form an active complex able to activate part of the NF-κB pathway. NOD2 induces a membrane recruitment of RICK that is dependent on a CARD-CARD interaction.

SIGNOR-252402

P58753

Q9Y4K3

2

binding

up-regulates activity

0.739

Mal interaction with TRAF6 is required for NF-κB transactivation

SIGNOR-280461

Q96RT7

O00444

0

phosphorylation

up-regulates activity

0.701

Plk4 interacts with and phosphorylates GCP6. we show that GCP6 is an integral component of the centriole and required for centriole duplication. Moreover, we find that GCP6 interacts in vitro and in vivo with Plk4. We show that phosphorylation of GCP6 by Plk4 is required for Plk4-induced centriole overduplication.

SIGNOR-262902

P30559

P50148

2

binding

up-regulates activity

0.552

OT binds to its cognate G protein–coupled receptor (OTR) and exerts diverse effects, including stimulation (Gs) or inhibition (Gi/o) of adenylyl cyclase, stimulation of potassium channel currents (Gi), and activation of phospholipase C (Gq).

SIGNOR-270332

Q08050

O96017

0

phosphorylation

up-regulates

0.721

Chk2 mediates stabilization of the foxm1 transcription factor to stimulate expression of dna repair genesthis phosphorylation of foxm1 on serine residue 361 caused increased stability of the foxm1 protein

SIGNOR-150746

P54646

Q92574

1

phosphorylation

up-regulates

0.551

Under energy starvation conditions, the amp-activated protein kinase (ampk) phosphorylates tsc2 and enhances its activity.

SIGNOR-119541

Q5FWF5

P06493

0

phosphorylation

down-regulates

0.474

We show here that eco1 degradation requires the sequential actions of cdk1 and two additional kinases , cdc7-dbf4 and the gsk-3 homolog mck1.

SIGNOR-200400

P35637

Q8WXD5

1

relocalization

up-regulates activity

0.2

Here, we report that FUS associates with the SMN complex, mediated by U1 snRNP and by direct interactions between FUS and SMN.|The FUS IP and pulldown revealed that FUS also associates with components of the SMN complex, including SMN and Gemins 4 and 6 |Remarkably, the number of SMN-stained nuclear bodies was dramatically reduced in the FUS knockdown cells

SIGNOR-262106

P42262

Q9NRD5

2

binding

up-regulates activity

0.807

RAB39B directs GluA2 trafficking in neurons. GTP-bound RAB39B interacts with PICK1. In line with evidence that PICK1 can dimerize, the structural model suggests that dimerization of PICK1 is a prerequisite for simultaneous recognition of both RAB39B and GluA2 each by one of the PICK1 molecules in the PICK1 dimer (Fig. 6a–c). The existence of such complex is supported by our co-immunoprecipitation experiments shown above.

SIGNOR-264046

P78527

Q9UGP5

1

phosphorylation

up-regulates activity

0.467

We show that Polλ is efficiently phosphorylated by DNA-PKcs in vitro and predominantly by ATM after DSB induction with ionizing radiation (IR) in vivo. We identify threonine 204 (T204) as a main target for ATM/DNA-PKcs phosphorylation on human Polλ, and establish that its phosphorylation may facilitate the repair of a subset of IR-induced DSBs and the efficient Polλ-mediated gap-filling during NHEJ.

SIGNOR-273835

Q03405

P04264

2

binding

up-regulates activity

0.288

Cytokeratin 1 binds to both gC1qR and u-PAR. Our data suggest that formation of HK (and Factor XII) binding sites along endothelial cell membranes consists of bimolecular com-plexes of gC1qR-cytokeratin 1 and u-PAR-cytokeratin 1, with gC1qR binding being favored.

SIGNOR-251880

Q05513

O14920

1

phosphorylation

up-regulates activity

0.517

Activation of IkappaB kinase beta by protein kinase C isoforms. | Interestingly, recombinant active zetaPKC and alphaPKC are able to stimulate in vitro the activity of IKKbeta but not that of IKKalpha. In addition, evidence is presented here that recombinant zetaPKC directly phosphorylates IKKbeta in vitro, involving Ser177 and Ser181. Collectively, these results demonstrate a critical role for the PKC isoforms in the NF-kappaB pathway at the level of IKKbeta activation and IkappaB degradation.

SIGNOR-249015

Q16584

P46734

1

phosphorylation

up-regulates activity

0.492

Immunoprecipitated mlk-3 catalyzed the phosphorylation of sek1 in vitro, and co-transfected mlk-3 induced phosphorylation of sek1 and mkk3 at sites required for activation, suggesting direct regulation of these protein kinases.

SIGNOR-45788

Q9UPN4

O00444

0

phosphorylation

up-regulates activity

0.534

We conclude that PLK4 phosphorylates CEP131 at Ser 78 to maintains centriolar satellite integrity.

SIGNOR-280075

Q68D86

Q5TZA2

2

binding

up-regulates activity

0.2

CCDC102B is recruited to the centrosome by C-Nap1 (also known as CEP250) and interacts with the centrosome linker components rootletin and LRRC45. CCDC102B decorates and facilitates the formation of rootletin filaments. Furthermore, CCDC102B is phosphorylated by Nek2A (an isoform encoded by NEK2) and is disassociated from the centrosome at the onset of mitosis.

SIGNOR-275628

P29323

P00519

0

phosphorylation

down-regulates

0.515

Two-hybrid screens identified regions of abl and arg that bind to the ephb2 and epha4 receptors, suggesting a novel signaling connection involving the two kinase families.The connection between EphB2 and Abl/Arg appears to be reciprocal. Activated EphB2 causes tyrosine phosphorylation of Abl and Arg, and vice versa. Interestingly, treatment of COS cells and B35 neuronal-like cells with ephrin-B1 to activate endogenous EphB2 decreased the kinase activity of endogenous Abl.

SIGNOR-109668

P28336

P63096

2

binding

up-regulates activity

0.268

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-257047

Q07869

Q7LBC6

0

transcriptional regulation

up-regulates quantity by expression

0.2

We show that Jhdm2a expression is induced by beta-adrenergic stimulation, and that Jhdm2a directly regulates peroxisome proliferator-activated receptor alpha (Ppara) and Ucp1 expression.

SIGNOR-266637

P08908

P08754

2

binding

up-regulates activity

0.57

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-256836

P68400

Q99808

1

phosphorylation

up-regulates activity

0.2

These data suggest that inhibition of CK2-mediated phosphorylation at Ser254 had the same effect on transporter function as the actual loss of Ser254 in mENT1a, implying that this site is constitutively phosphorylated by CK2.

SIGNOR-276063

P05771

P61764

1

phosphorylation

down-regulates activity

0.398

Munc18a is essential for neurotransmitter release by exocytosis and can be phosphorylated by PKC in vitro on Ser-306 and Ser-313. We demonstrate that it is phosphorylated on Ser-313 in response to phorbol ester treatment in adrenal chromaffin cells. Mutation of both phosphorylation sites to glutamate reduces its affinity for syntaxin and so acts as a phosphomimetic mutation.

SIGNOR-249186

Q96BY7

Q9Y484

2

binding

up-regulates activity

0.648

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-268484

Q16512

Q16539

1

phosphorylation

up-regulates

0.378

At the same time, rho signals to c-jun n-terminal kinase (jnk) and p38 through rock and protein kinase n (pkn), leading to the transcriptional regulation of jun

SIGNOR-152765

Q71UI9

Q14493

0

translation regulation

up-regulates quantity by expression

0.2

Synthesis of mature histone mRNA requires only a single processing reaction: an endonucleolytic cleavage between a conserved stem-loop and a purine-rich downstream element to form the 3' end. The stem-loop binding protein (SLBP) is required for processing, and following processing, histone mRNA is transported to the cytoplasm, where SLBP participates in translation of the histone mRNA|We used radiolabeled probes generated by PCR targeting the open reading frame (ORF) to detect histones H2A, H2B, H3, H4, and H1 and used 7SK snRNA as a loading control (Fig. 2A). The abundance of histone H2A, H2B, H3, and H4 mRNAs is reduced to 37% to 70% of control levels in the SLBP knockdown cells when compared to the C2 control.

SIGNOR-265410

P27361

P49137

1

phosphorylation

up-regulates

0.475

Erk phosphorylates multiple cytoplasmatic and cytoskeletal proteins, including mapk-activated protein kinases and the ribosomal p70-s6 kinase

SIGNOR-201687

P06213

P22681

2

phosphorylation

up-regulates activity

0.528

Insulin receptor phosphorylates Cbl on tyrosines 371, 700, and 774 in the presence of APS. This phosphorylation event is required for the recruitment of Crk to the CAP/Cbl complex and for the subsequent activation of GLUT4 translocation.

SIGNOR-251304

Q15139

Q13671

1

phosphorylation

down-regulates

0.402

Rin1 also binds to 14-3-3 proteins through a sequence including serine 351. Mutation of this residue abolished the 14-3-3 binding capacity of rin1 and led to more efficient blockade of ras-mediated transformation. The mutant protein, rin1(s351a), showed a shift in localization to the plasma membrane. Serine 351 is a substrate for protein kinase d (pkd [also known as pkcmu]) in vitro and in vivo. These data suggest that the normal localization and function of rin1, as well as its ability to compete with raf, are regulated in part by 14-3-3 binding, which in turn is controlled by pkd phosphorylation.

SIGNOR-113960

O43318

P46937

1

phosphorylation

down-regulates activity

0.338

TAK1 inhibits YAP activity through beta-TRCP.|Thus, our data indicate that TAK1 directly phosphorylates YAP at multiple sites.|These observations prompted us to test whether TAK1 phosphorylates YAP at S127.

SIGNOR-278956

Q00536

O43663

1

phosphorylation

up-regulates activity

0.344

Mechanistically, CDK16 exerts its function by phosphorylating protein regulator of cytokinesis 1 (PRC1) to regulate spindle formation during mitosis.|Indeed, immunoblot analysis showed that PRC1 phosphorylation at the T481 site (CDK-dependent major phosphorylation site) fluctuated with the abundance of CDK16 protein in the cell cycle process

SIGNOR-273017

Q15418

Q9H6Z4

1

phosphorylation

up-regulates quantity

0.319

RSK phosphorylates RanBP3 at Serine 58 residue in vitro and in vivo.RanBP3 phosphorylation increases its affinity towards Ran

SIGNOR-276149

Q07812

Q9UPU5

0

deubiquitination

up-regulates quantity by stabilization

0.2

In this study, several cancer-related proteins (Bax, p300, E2F4 and securin) have been proven to be substrates of ubiquitin-specific peptidase 24 (USP24), and relevance has been shown between USP24 and its substrates in samples from clinical lung cancer patients. |Knockdown of USP24 decreases Bax and p300 levels

SIGNOR-275606

Q9UPT6

Q13464

0

phosphorylation

up-regulates

0.332

Identification of rock1 as an upstream activator of the jip-3 to jnk signaling axis in response to uvb damage. phosphorylation of jip-3 by rock1 was crucial for the recruitment of jnk. Inhibition of the activity of rock1 in keratinocytes resulted in decreased activation of the jnk pathway and thus a reduction in apoptosis.

SIGNOR-134588

Q13485

Q15796

2

binding

up-regulates activity

0.721

the receptor-regulated Smad, such as Smad2, forms a heterocomplex with the co-mediator Smad, Smad4

SIGNOR-235183

P29350

P35222

1

dephosphorylation

down-regulates quantity by destabilization

0.558

Because SHP-1 can dephosphorylate residues Y86 and Y654 on the \u03b2-catenin protein, these residues were therefore mutated into phenylalanine and the transcriptional activity of the subsequent \u03b2-catenin mutants analyzed: \u03b2-catenin/Y86F, \u03b2-catenin/Y654F and \u03b2-catenin/Y86F/Y654F. As shown in Fig.\u00a03 B, the mutants \u03b2-catenin/Y86F, \u03b2-catenin/Y654F and \u03b2-catenin/Y86F/Y654F had a significantly reduced transcriptional activity in comparison to wild-type \u03b2-catenin.|SHP-1 inhibits \u03b2-catenin function by inducing its degradation and interfering with its association with TATA-binding protein.

SIGNOR-277014

Q12913

P19174

1

dephosphorylation

down-regulates

0.369

Cd148 can dephosphorylate lat and plc?1 In vitro. / plc?1 Undergoes inducible tyrosine phosphorylation following tcr stimulation (46), and this phosphorylation is required to stimulate its catalytic activity

SIGNOR-105790

O94907

O75581

2

binding

down-regulates

0.904

We report that dkk-1 is a high-affinity ligand for lrp6 and inhibits wnt signaling by preventing fz-lrp6 complex formation induced by wnt. Dkk1 has been shown to inhibit wnt by binding to and antagonizing lrp5/6.

SIGNOR-109247

P13807

P17612

0

phosphorylation

down-regulates activity

0.508

The results presented in this paper show that the phosphorylation of glycogen synthetase a by cyclic AMP-dependent protein kinase results in the phosphorylation of two distinct serines termed site-l and site-2, which account for 90% of the total phosphorylation

SIGNOR-253009

Q9H1C0

P19086

2

binding

up-regulates activity

0.2

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

SIGNOR-257113

P23921

Q7LG56

2

binding

up-regulates activity

0.935

Taken together, we conclude that UV-induced activation of p53R2 transcription and binding of p53R2 to hRRM1 to form RR holoenzyme are impaired in the p53-mutant cell line PC3.

SIGNOR-259366

Q9H1E3

P06493

0

phosphorylation

down-regulates activity

0.474

putative phosphorylation site for Cdk1 is present in the DNA-binding domain peptide. This site, corresponding to Ser 181 in the NUCKS primary structure, is phosphorylated in vitro by Cdk1 with a Km of approximately 35 μM [7]. Phosphorylation of Ser 181 in the synthetic, DNA-binding domain peptide reduces its affinity for DNA-by 100%.

SIGNOR-261959

P52757

P12931

0

phosphorylation

down-regulates

0.2

Here we report that beta2-chimaerin is tyrosine-phosphorylated by src-family kinases (sfks) upon cell stimulation with epidermal growth factor (egf). Mutational analysis identified tyr-21 in the n-terminal regulatory region as a major phosphorylation site. these results suggest tyr-21 phosphorylation as a novel, sfk-dependent mechanism that negatively regulates beta2-chimaerin rac-gap activity.

SIGNOR-155713

P27986

P35813

0

dephosphorylation

up-regulates activity

0.324

Protein phosphatase-2C alpha as a positive regulator of insulin sensitivity through direct activation of phosphatidylinositol 3-kinase in 3T3-L1 adipocytes|PP2Cα dephosphorylates the p85 subunit of PI3K, and dephosphorylation of the p85 subunit of PI3K at Ser608 increases its activity

SIGNOR-248489

Q9GZU7

P78527

1

dephosphorylation

up-regulates activity

0.2

CTDSP1 activates DNA-PKcs and enhances DNA-PKcs dependent topoI degradation in response to irinotecan .|Our novel finding indicates that CTDSP1 dephosphorylates DNA-PKcs, changes its kinase activity, and regulates irinotecan-induced topoI degradation.

SIGNOR-277101

Q12772

P27169

1

transcriptional regulation

up-regulates quantity by expression

0.297

we conclude that quercetin exhibits its antiatherogenic property by eliciting the translocation of the mature SREBP2 from endoplasmic reticulum to the nucleus, where it binds to SRE-like sequence in the PON1 promoter and up-regulates PON1 gene transcription and PON1 activity.

SIGNOR-255224

P10914

Q00987

0

ubiquitination

down-regulates quantity

0.388

HIV-1 Tat Recruits HDM2 E3 Ligase To Target IRF-1 for Ubiquitination and Proteasomal Degradation.|IRF-1 ubiquitination by HDM2 is specifically increased during HIV-1 infection in the presence of increasing amounts of Tat and is mediated by the formation of a trimeric complex between Tat, IRF-1, and HDM2, as demonstrated by coimmunoprecipitation analysis (XREF_FIG).

SIGNOR-278590

P18146

Q9Y251

1

transcriptional regulation

up-regulates quantity by expression

0.37

Promoter CpG hypomethylation and transcription factor EGR1 hyperactivate heparanase expression in bladder cancer.

SIGNOR-254267

Q05397

P06213

0

phosphorylation

up-regulates activity

0.353

P125(Fak) sequence comprising amino acids 568-582, which contains tyrosines 576 and 577 of the kinase domain regulatory loop, is phosphorylated by the insulin receptor. p125(Fak) phosphorylation by the receptor results in its activation.

SIGNOR-251323

Q92900

Q96Q15

0

phosphorylation

up-regulates

0.971

Smg-1 directly phosphorylates upf1 helicase, another key component of nmd, upon recognition of ptc on postspliced mrna during the initial round of translation. Phosphorylated-upf1 recruits the smg-5/smg-7 complex to induce ribosome dissociation and decapping-mediated decay. T28 and s1096 are responsible for phospho-specific recruitment of smg-6 to the n-terminal conserved region, and the smg-5/smg-7 heterodimer complex to the c-terminal sq-rich region of upf1, respectively

SIGNOR-200785

O15444

Q9NPB9

2

binding

up-regulates activity

0.664

In the present study, however, we demonstrate for the first time the concentration-dependent recruitment of β-arrestins to the atypical chemokine receptor CCX-CKR upon stimulation with CCL19, CCL21, or CCL25 using three different methodologies in various transfected cell lines.

SIGNOR-268418

P17612

Q6J4K2

1

phosphorylation

up-regulates activity

0.2

However, the PDE2-inhibitory effect is eliminated when the mitochondrial S258A NCLX mutant that mimics a non-PKA phosphorylated state of NCLX is expressed. Altogether, our findings indicate that NCLX is regulated by the mitochondrial PDE2A2 form.|We show that caffeine, by inhibiting PDE2, enhances PKA phosphorylation leading to mitochondrial NCLX activation, thereby reducing neuronal excitotoxicity and enhancing learning in mice. |Moreover, PDE2 acts by diminishing mitochondrial cAMP, thus promoting NCLX phosphorylation at its PKA site.

SIGNOR-275727

Q03167

P05111

2

binding

down-regulates

0.589

Type iii tgf-beta receptor, betaglycan, can function as an inhibin co-receptor with actrii. Betaglycan binds inhibin with high affinity and enhances binding in cells co-expressing actrii and betaglycan. ability of betaglycan to facilitate inhibin antagonism of activin

SIGNOR-76470

O43602

P45983

0

phosphorylation

up-regulates activity

0.286

DCX phosphorylation by JNK1 is required for glioma suppression.

SIGNOR-279217

Q9Y5P2

Q96EB6

2

binding

up-regulates activity

0.2

Here, we show that the previously undescribed CSAG2 protein is a direct activator of SIRT1. Biochemical studies revealed that CSAG2 directly binds to and stimulates SIRT1 activity toward multiple substrates. Importantly, CSAG2 enhances SIRT1‐mediated deacetylation of p53, inhibits p53 transcriptional activity, and improves cell survival in response to genotoxic stress.

SIGNOR-261670

Q9Y572

Q8NB16

1

phosphorylation

up-regulates activity

0.753

MLKL comprises a four-helical bundle tethered to the pseudokinase domain, which contains an unusual pseudoactive site. Although the pseudokinase domain binds ATP, it is catalytically inactive and its essential nonenzymatic role in necroptotic signaling is induced by receptor-interacting serine-threonine kinase 3 (RIPK3)-mediated phosphorylation.[...]S345, S347, and T349 in the MLKL activation loop were phosphorylated by RIPK3 in in vitro kinase assays

SIGNOR-266427

P25963

Q9UKB1

0

ubiquitination

down-regulates

0.542

We report here the identification of an ikappab-ubiquitin (ub) ligase complex containing the f-box/wd40-repeat protein, beta-trcp, a vertebrate homolog of drosophila slimb. beta-trcp binds to ikappabalpha only when the latter is specifically phosphorylated by an ikappab kinase complex. here we provide evidence that lysine residues 21 and 22 serve as the primary sites for signal-induced ubiquitination of i kappa b alpha.

SIGNOR-64317

P02747

Q07021

2

binding

down-regulates activity

0.399

Previous studies have shown that gC1qR inhibits aggregated IgG-mediated complement activation by binding to the gC1q site on C1q, thereby preventing IgG from binding to the gh’s (28), suggesting that the binding sites for gC1qR and IgG on C1q may be identical or at least overlapping.

SIGNOR-263404

P35414

P63096

2

binding

up-regulates activity

0.437

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-256681

Q92913

Q9UQD0

2

binding

down-regulates activity

0.406

Sodium channel fast inactivation is modulated by alpha subunit interaction with a family of cytoplasmic proteins termed fibroblast growth factor homologous factors (FHFs). In this paper, we report that all A-type FHFs exert rapid onset long-term inactivation on Nav1.6 and other sodium channels.

SIGNOR-253411

P16615

P23327

2

binding

down-regulates activity

0.374

Furthermore, a Ser96Asp HRC variant, which mimics constitutive phosphorylation of Ser96, diminished delayed aftercontractions in HRC null cardiac myocytes. This HRC phosphomimetic variant was also able to rescue the aftercontractions elicited by the Ser96Ala variant, demonstrating that phosphorylation of Ser96 is critical for the cardioprotective function of HRC. Phosphorylation of HRC on Ser96 regulated the interactions of HRC with both triadin and SERCA2a, suggesting a unique mechanism for regulation of SR Ca homeostasis.

SIGNOR-273662

Q9UKV5

Q92890

2

binding

up-regulates activity

0.2

Here we show that Ufd1 directly interacts with gp78 and functions as a cofactor. Ufd1 enhances the E3 activity of gp78, accelerates the ubiquitination and degradation of reductase, and eventually promotes receptor-mediated uptake of low-density lipoprotein.

SIGNOR-252425

Q86UR5

Q01668

2

binding

up-regulates activity

0.365

Here, we report an interaction of the C2B domain of RIM2α and RIM3γ with the C-terminus of the pore-forming α-subunit of CaV1.3 channels (CaV1.3α1), which mediate stimulus-secretion coupling at the ribbon synapses of cochlear inner hair cells (IHCs). In conclusion, we propose that RIM2α and RIM3γ directly interact with the C-terminus of the pore-forming subunit of CaV1.3 Ca2+ channels and positively regulate their plasma membrane expression in HEK293 cells.

SIGNOR-264358

Q9NRM7

Q9GZV5

1

phosphorylation

down-regulates

0.698

Activated lats1/2 in turn phosphorylate and inhibit yap/taz transcription co-activators

SIGNOR-175787

P06241

Q15858

1

phosphorylation

up-regulates activity

0.363

Our results demonstrate Fyn -mediated upregulation of Nav1.7 protein expression and tyrosine phosphorylation and identify two tyrosine residues within the DIII-DIV linker (L3) as Fyn phosphorylation sites.

SIGNOR-279614

Q15154

Q12798

1

relocalization

up-regulates

0.406

Rna silencing of pcm-1 leads to reduced assembly of centrin, pericentrin, and ninein at the centrosome

SIGNOR-94947

Q08379

P62820

0

relocalization

up-regulates activity

0.718

Here, we demonstrate that the cis ‐Golgi tethering protein GM130, complexed with GRASP65 and other proteins, forms a novel Rab1 effector complex that interacts with activated Rab1‐GTP in a p115‐independent manner and is required for coat protein II vesicle targeting/fusion with the cis ‐Golgi

SIGNOR-261285

O75581

P48729

0

phosphorylation

up-regulates

0.552

We show that wnt induces sequential phosphorylation of lrp6 by gsk3 and casein kinase 1, and this dual phosphorylation promotes the engagement of lrp6 with the scaffolding protein axin.Site ii, like site i, was phosphorylated, as detected by means of a phospho-specific antibody (ab1493, for phosphorylated t1493 in lrp6)

SIGNOR-143034

Q00535

Q16665

1

phosphorylation

up-regulates activity

0.259

In conclusion, we obtained compelling evidence that CDK5 directly stabilizes the transcription factor hypoxia inducible factor-1\u03b1 by phosphorylation, and thus promotes the formation of blood vessels.|Mass spectrometry and site directed mutagenesis revealed a stabilizing phosphorylation of HIF-1\u03b1 at Ser687 by CDK5.

SIGNOR-279020

Q00653

O15111

0

phosphorylation

up-regulates activity

0.791

Ikkalfa phosphorylates p100, leading to its proteasomal processing to p52.

SIGNOR-124230

Q8N163

O15379

2

binding

down-regulates activity

0.254

Besides SIRT1, CCAR2 inhibits the activity of the histone-modifying enzymes SUV39H1 and HDAC3 [9, 10], thus playing an important role in chromatin structure regulation.

SIGNOR-267665

P34947

O75581

1

phosphorylation

up-regulates

0.548

we found that g protein-coupled receptor kinases 5 and 6 (grk5/6), traditionally known to phosphorylate and desensitize 7tm g protein-coupled receptors, directly phosphorylate the pppsp motifs on single transmembrane lrp6 and regulate wnt/lrp6 signaling

SIGNOR-23330

P12931

O75955

1

phosphorylation

up-regulates activity

0.335

Taken together, we conclude that mitochondrial c-Src phosphorylates flotillin-1 at Tyr56 and Tyr149, and that these phosphorylations are required for its interaction with CxII and the prevention of ROS production.

SIGNOR-273805

Q9Y5G0

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-265714

Q16513

O15553

1

phosphorylation

down-regulates activity

0.349

PKNs bind to human pyrin and phosphorylate S208 and S242. Pyrin forms an inflammasome when mutant or in response to bacterial modification of the GTPase RhoA. We found that RhoA activated the serine-threonine kinases PKN1 and PKN2 that bind and phosphorylate pyrin. Phosphorylated pyrin bound to 14-3-3 proteins, regulatory proteins that in turn blocked the pyrin inflammasome.

SIGNOR-275464

P04626

P01133

2

binding

up-regulates

0.791

To better understand the role of the egfr tyrosine kinase, we analyzed signaling by a kinase-inactive egfr (k721m) in erbb-devoid 32d cells. K721m alone exhibited no detectable signaling capacity, whereas coexpression of k721m with erbb2, but not erbb3 or erbb4, resulted in egf-dependent mitogen-activated protein kinase (mapk) activation. The kinase activity, but not tyrosine phosphorylation, of erbb2 was required for egf-induced mapk activation.

SIGNOR-106497

P32245

Q96G30

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

P19174

P63211

2

binding

up-regulates

0.409

Furthermore, this work suggested that the gbetagamma subunits released upon gi activation activated phospholipase c-gamma (plc-gamma) to produce inositol 3 phosphate (ip3) which would subsequently increase intracellular ca2+ abundance.

SIGNOR-199144

Q13485

P12757

2

binding

down-regulates activity

0.886

Thus, SnoN can interact with Smad4 and Smad2 and inhibit their abilities to activate transcription.

SIGNOR-71633

Q00534

P38936

2

phosphorylation

down-regulates activity

0.864

Here, we show that p21cip1 is associated with k cyclin both in overexpression models and in primary effusion lymphoma cells and is a substrate of the k cyclin/cdk6 complex, resulting in phosphorylation of p21cip1 on serine 130. This phosphoform of p21cip1 appeared unable to associate with cdk2 in vivo.

SIGNOR-144832

P06493

P46527

2

phosphorylation

down-regulates

0.655

Phosphorylation of kip1 on thr-187, by cdk1 and cdk2 leads to protein ubiquitination and proteasomal degradation.

SIGNOR-80230

Q9UNF0

P17612

0

phosphorylation

down-regulates activity

0.2

PKCα phosphorylates PACSIN2 at serine 313 in the linker region and decreases its membrane binding and tubulation activities. Phosphorylation of PACSIN2 at S313 negatively regulated protein interaction between NS5A and core, which affected viral assembly

SIGNOR-273799

P60510

Q6IN85

2

binding

up-regulates

0.2

Our data demonstrate that pp4r4 forms a novel cytosolic complex with pp4c, independent from the complexes containing pp4r1, pp4r2.PP4R3, and alpha4, and that the regulatory subunits of pp4c have evolved different modes of interaction with the catalytic subunit.

SIGNOR-180244

P49840

P13051

1

phosphorylation

down-regulates quantity by destabilization

0.2

Here we show that glycogen synthase kinase 3 (GSK-3) interacts with and phosphorylates UNG2 at Thr60 and that Thr60 phosphorylation requires a Ser64 priming phosphorylation event.|phosphorylation of Thr60 and Ser64 creates a cyclin E/c-Myc-like phosphodegron that promotes polyubiquitylation and proteasome-mediated degradation

SIGNOR-264886

P23458

P29597

1

phosphorylation

up-regulates

0.527

These results indicate that tyk2 is activated by phosphorylation on tyr-1054 and/or tyr-1055 and that this phosphorylation requires another kinase, most likely jak1.

SIGNOR-43080

P08581

Q92990

1

relocalization

down-regulates

0.331

Significantly, nonphosphorylated hgf receptor prevents fap68 from stimulating p70s6k. fap68 binding to met requires the last 30 amino acids of the c-terminal tail, which are unique to the hgf receptor.

SIGNOR-110726

P15336

P31751

0

phosphorylation

up-regulates activity

0.426

Taken together, these data suggest that AMPK regulates EC migration through phosphorylation of AKT2, which promotes ATF2 transactivation of MMP-2 during EC migration.|Within this subgroup, we chose AKT2 for analysis because AKT2 phosphorylates activating transcription factor 2 (ATF2) [ xref , xref ].

SIGNOR-280178

P43004

Q96PU5

0

ubiquitination

down-regulates quantity

0.304

Our results confirm that Nedd4-2 knockdown in MPTP treated mice increased GLT-1 expression at the membrane protein level (XREF_FIG; P < 0.01).|These results suggest that Nedd4-2 mediates the ubiquitination of both GLT-1 and GLAST in the midbrain in MPTP treated mice, and Nedd4-2 maybe a potential target in regulating glutamate transporters in PD.

SIGNOR-278706

Q05086

P78352

1

ubiquitination

down-regulates quantity by destabilization

0.349

E6-induced degradation of DLG4 depends on E6AP in vivo. Our findings as a whole indicate that E6AP is involved in E6-mediated ubiquitination and degradation of DLG4 both in vivo and in vitro.

SIGNOR-271397

P37231

P14373

0

ubiquitination

down-regulates quantity by destabilization

0.289

Mechanically, TRIM27 ubiquitinates and degrades PPARgamma, following induces cleaved Caspase-3 and IL-1beta expression.

SIGNOR-278734

Q9NUX5

P35244

2

binding

down-regulates activity

0.263

The current model for how telomeres repress ATR signaling proposes that POT1/TPP1 prevents the binding of RPA to the single-stranded telomeric DNA

SIGNOR-263326

P24941

P50613

2

phosphorylation

up-regulates

0.571

Threonine-170 of cdk7 is phosphorylated in vitro by cdk2. Full activation of cdk7 requires phorylation of a conserved threonine residue at position 170 in its own t loop.

SIGNOR-85013

P12931

P10398

1

phosphorylation

up-regulates activity

0.489

A-raf behaves like raf-1, being weakly activated by oncogenic ras more strongly activated by oncogenic src, and these signals synergize to give maximal activation

SIGNOR-236459

Q92585

Q06413

2

binding

up-regulates

0.393

Unexpectedly, however, emerging evidence implicate maml proteins as exciting key transcriptional co-activators in other signal transduction pathways including: muscle differentiation and myopathies (mef2c), tumor suppressor pathway (p53) and colon carcinoma survival (beta-catenin).

SIGNOR-144913

P23759

P00519

0

phosphorylation

up-regulates activity

0.272

Furthermore, we show that c-Abl interacts with and phosphorylates Pax7 protein.|Indeed, reporter gene assays indicate that c-Abl inhibition decreases Pax7 dependent activation of the 6xPRS9-luc reporter.

SIGNOR-279773