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
P31271	Q15375	1	transcriptional regulation	up-regulates quantity by expression	0.291	Analysis of normalized luciferase expression confirmed that wt HOXA13 regulates gene expression through the EphA7 cis-regulatory DNA element	SIGNOR-261631
Q00535	Q9NQT8	1	phosphorylation	down-regulates activity	0.365	Overexpression of Cdk5 or its activator p35 promoted and inhibition of Cdk5 activity prevented the KIF13B-TRPV1 association, indicating that Cdk5 promotes TRPV1 anterograde transport by mediating the motor-cargo association. Cdk5 phosphorylates KIF13B at Thr-506, a residue located in the FHA domain. T506A mutation reduced the motor-cargo interaction and the cell-permeable TAT-T506 peptide, targeting to the Thr-506, decreased TRPV1 surface localization, demonstrating the essential role of Thr-506 phosphorylation in TRPV1 transport.	SIGNOR-262737
Q01130	Q9UBN7	0	deacetylation	up-regulates	0.356	Our data support a model in which hdac6 has a key role in the maintenance of srsf2 protein level by inhibiting tip60_mediated acetylation and proteasomal degradation.	SIGNOR-170590
P63279	Q9UKY1	1	sumoylation	up-regulates quantity by stabilization	0.452	Here, we report that the SUMO-E2 conjugating enzyme Ubc9 was identified to interact with ZHX1 by an interaction screen using a yeast two-hybrid system. This interaction was confirmed by co-immunoprecipitation and co-localization assays. Further study showed that ZHX1 is SUMOylated by Ubc9 with SUMO1 at the sites K159, K454, and K626. Furthermore, we demonstrated that the SUMOylation of ZHX1 regulated the stability, ubiquitination and transcriptional activity of ZHX1. The sumoylation of zinc‐fingers and homeoboxes 1 (ZHX1) by ubc9 regulates its stability and transcriptional repression activity. However, in the current work, we demonstrated that ZHX1 was only SUMOylated by SUMO1.	SIGNOR-263901
Q15796	P12755	2	binding	down-regulates activity	0.741	The ski and snon protein family associate with and repress the activity of smad2, smad3, and smad4, three members of the tgf-fl signaling pathway	SIGNOR-236155
O14548	Q99683	0	phosphorylation	up-regulates activity	0.2	Phosphorylation of EB1 by ASK1 promotes the binding of EB1 to CLIP-170 and p150 glued.	SIGNOR-278341
O15259	Q14289	0	phosphorylation	up-regulates activity	0.461	Pyk2 Induces Tyrosine Phosphorylation of NPHP1 at Tyr 46, Tyr 349, and Tyr 721.\|The expression of wild-type Pyk2 enhances the amount of co-precipitating PACS-1 with wild-type NPHP1 compared with the presence of the kinase-dead variant of Pyk2.	SIGNOR-278272
P08754	P25105	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-257174
Q9UNE7	Q99717	1	ubiquitination	down-regulates	0.343	In ad-dition, some proteins (e.g. Chip, carboxyl terminus of hsc70-interacting protein) inhibit the signaling activi-ties of smad1/5 by recruiting smad1/5 from the functional r-/co-smad complex and further pro-moting the ubiquitination and degradation of smad1/5 in a chaperone-independent manne	SIGNOR-195690
P08754	P49683	2	binding	up-regulates activity	0.278	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-256837
Q9Y6Q9	Q16539	0	phosphorylation	up-regulates activity	0.526	P38 MAPK and JNK can phosphorylate multiple sites on SRC-3, including S505, S543, S860, and S867. Our results suggest that several kinases are important for phosphorylating SRC-3 and enhancing its interaction with DNA-dependent transcription factors and other coactivators.	SIGNOR-250103
Q99574	Q9UKV5	0	polyubiquitination	down-regulates quantity by destabilization	0.296	In this study, we demonstrate that two ER-associated E3 ligases, Hrd1 and gp78, are involved in the ubiquitination and degradation of mutant neuroserpin.	SIGNOR-272756
Q495A1	P15151	2	binding	up-regulates activity	0.867	Poliovirus receptor (PVR/CD155) is a ligand of the paired NK receptors, DNAM-1 (activating) and TIGIT (inhibiting). NK cells can kill cancer cells expressing PVR via the DNAM-1-mediated activating signaling (11,12).	SIGNOR-261425
P49959	Q92878	2	binding	up-regulates	0.2	To organize the mrn complex, the mre11 exonuclease directly binds nbs1, dna, and rad50.	SIGNOR-157478
O14965	O43521	1	phosphorylation	down-regulates quantity by destabilization	0.376	We observed that BimEL is phosphorylated by Aurora A early in mitosis and reversed by PP2A after mitotic exit. Aurora A phosphorylation stimulated binding of BimEL to the F-box protein beta-transducin repeat containing E3 ubiquitin protein ligase and promoted ubiquitination and degradation of BimEL.	SIGNOR-276248
Q01638	Q9NPH3	2	binding	up-regulates activity	0.504	The initial step in IL-33 signal transduction is ligand-induced conformational changes in IL-33R, which facilitate recruitment of interleukin-1 receptor accessory protein (IL-1RAP).	SIGNOR-277715
P09958	P46531	2	binding	up-regulates	0.667	The proteolytic activity of furin responsible for processing full length notch-1 (p300) plays a critical role in notch signaling.	SIGNOR-196914
Q92466	Q9UPU5	0	deubiquitination	up-regulates	0.703	Usp24-mediated ddb2 deubiquitination prevents ddb2 degradation	SIGNOR-199731
Q00987	Q9H2X6	0	phosphorylation	down-regulates activity	0.537	HIPK2 inhibits both MDM2 gene and protein by, respectively, p53-dependent and independent regulations.\|This p53-independent effect is likely mediated by HIPK2 catalytic activity and we found that HIPK2 phosphorylates MDM2 in vitro.	SIGNOR-279465
P25116	Q15831	0	phosphorylation	up-regulates activity	0.2	LKB1 phosphorylates PAR-1 at the T408 site xref .\|LKB1 thus positively regulates PAR-1 at the postsynapse.	SIGNOR-278992
P06239	P06127	1	phosphorylation	up-regulates activity	0.541	Tyrosine phosphorylation of cd5 requires lck activity. We propose that t cell activation mediates cd5 tyrosine phosphorylation at residues y429 and y463 mainly through the activation of lck	SIGNOR-106799
P23469	P06213	1	dephosphorylation	down-regulates activity	0.285	In this study, we showed that receptor-type PTPepsilon (PTP epsilonM) dephosphorylated IR in rat primary hepatocytes and tyrosines 972, 1158, 1162 and 1163\| These results suggest that PTPepsilonM is a negative regulator of IR signaling and involved in insulin-induced glucose metabolism mainly through direct dephosphorylation and inactivation of IR in hepatocytes and liver.	SIGNOR-248444
O60240	P17612	0	phosphorylation	down-regulates activity	0.504	PKA increased lipolysis in cells expressing Peri A because it abrogated the inhibitory actions of Peri A on lipolysis.‚ amino-terminal PKA sites (Ser-81, Ser-222, and Ser-276)	SIGNOR-250028
P08581	P62993	2	binding	up-regulates activity	0.695	For activation of the mitogen-activated protein kinase (MAPK) cascades, c-MET activation stimulates the activity of the rat sarcoma viral oncogene homolog (RAS) guanine nucleotide exchanger son of sevenless (SOS) via binding with SHC and GRB2 leading to the activation of RAS.	SIGNOR-256261
Q13214	O60462	2	binding	up-regulates activity	0.59	Further examination of the composition of the functional Sema3B receptor revealed that, unlike Sema3A, which signals exclusively using the NP1 receptor, Sema3B utilizes both NP1 and NP2 for signal transduction.	SIGNOR-261816
P08151	O43312	2	binding	up-regulates	0.543	Mim is a shh-responsive gene that can potentiate gli transcriptional activity.MIM Appears to regulate target gene expression through its association with the gli complex	SIGNOR-157650
P10301	P12931	0	phosphorylation	down-regulates activity	0.58	The small gtpase, r-ras, affects cell adhesion by maintaining integrin activity. Activated src oncogene phosphorylates r-ras and suppresses integrin activity. the src phosphorylation site in r-ras was tyrosine 66	SIGNOR-111189
Q9Y222	P15514	1	transcriptional regulation	up-regulates quantity by expression	0.2	Notably, amphiregulin (Areg), thrombospondin-1 (Tsp-1), JunB, Egr1, adrenomedullin (Adm), Bcl-3 and methyl-CpG binding domain protein 1 (Mbd1) were downregulated in the lungs from Dmp1-null mice while Gas1 and Ect2 genes were upregulated.	SIGNOR-261582
P37231	Q9UBK2	1	transcriptional regulation	up-regulates quantity by expression	0.903	NFIA binds to and activates the brown-fat-specific enhancers even before differentiation and later facilitates the binding of PPARgamma\|NFIA has at least three functions on the transcriptional regulation of brown fat [2]. First, NFIA activates adipogenesis per se, through activating the transcription of Pparg, which encodes PPARgamma. Second, NFIA also activates the brown-fat-specific gene expression (such as Ucp1 and Ppargc1a) independent of the degree of adipocyte differentiation, through facilitating the binding of PPARgamma to the brown-fat-specific enhancers. Third, NFIA represses myogenesis through suppression of myogenic transcription factors such as Myod1 as well as Myog,	SIGNOR-263984
P32245	O00253	2	binding	down-regulates	0.774	Recombinant agouti-related protein was a potent, selective antagonist of mc3r and mc4r,.	SIGNOR-51104
P14784	P23458	2	binding	up-regulates	0.631	In lymphocytes, binding of il-15 to the il-2/15rbg heterodimer induces jak1 activation that subsequently phosphorylates stat3 via the b-chain and jak3/stat5 activation via its g-chain	SIGNOR-204972
P01106	O75626	0	transcriptional regulation	down-regulates quantity by repression	0.436	The positive regulatory domain i binding factor 1 (prdi-bf1 or blimp-1) protein represses the transcription of specific target genes, including c-myc, the mhc class ii trans-activator, pax-5, and cd23b	SIGNOR-99119
P37231	P35222	2	binding	down-regulates activity	0.538	Oncogenic beta-catenin resists proteasomal degradation by inhibiting PPARgamma activity, which requires its TCF/LEF binding domain	SIGNOR-256072
P15374	P62987	1	cleavage	up-regulates quantity	0.801	Here we provide data suggesting that two of the four mammalian ubiquitin precursors, UBA52 and UBA80, are processed mostly post-translationally whereas the other two, UBB and UBC, probably undergo a combination of co- and post-translational processing. Using an unbiased biochemical approach we found that UCHL3, USP9X, USP7, USP5 and Otulin/Gumby/FAM105b are by far the most active DUBs acting on these precursors.	SIGNOR-270827
P27708	P28482	0	phosphorylation	up-regulates	0.382	Cad is a multifunctional protein that initiates and regulates mammalian de novo pyrimidine biosynthesis. The activation of the pathway required for cell proliferation is a consequence of the phosphorylation of cad thr-456 by mitogen-activated protein (map) kinase.Activated map kinase (erk1/2), the enzyme responsible for the phosphorylation of thr-456, was also present in larger amounts in the nucleus than the cytosol	SIGNOR-137171
P58012	P63279	0	sumoylation	up-regulates	0.698	Foxl2 is sumoylated by ubc9, and this ubc9-mediated sumoylation is essential to the transcriptional activity of foxl2 on the star promoter. / the sumoylation site was identified at lysine 25 of foxl2	SIGNOR-187901
P19235	Q9Y314	0	ubiquitination	up-regulates activity	0.331	Erythropoietin receptors associate with a ubiquitin ligase, p33RUL, and require its activity for erythropoietin-induced proliferation. This receptor-associated ubiquitin ligase, RUL, co-precipitated with EpoR from mammalian cells and mediated ubiquitination of EpoR. RUL mediates EpoR ubiquitination in COS7 cells and is inducibly ubiquitinated after Epo treatment. This observation is consistent with the lack of effects on EpoR stability by RUL-mediated ubiquitination in COS7 cells (Fig. 4).	SIGNOR-271477
Q9H492	Q9NT62	2	binding	up-regulates	0.855	Lc3-i is activated by the same atg7 involved in atg12 conjugation, transferred to atg3, a second e2-like enzyme, and finally conjugated to pe.	SIGNOR-191543
P49842	P01111	1	phosphorylation	up-regulates activity	0.306	STK19 Phosphorylates NRAS Protein at Serine 89\|STK19 phosphorylates NRAS to enhance its binding to its downstream effectors and promotes oncogenic NRAS-mediated melanocyte malignant transformation.\|	SIGNOR-264566
Q00526	P38936	2	binding	down-regulates	0.664	P21cip1 is a cyclin-dependent kinase (cdk) inhibitor that is transcriptionally activated by p53 in response to dna damage. We have explored the interaction of p21 with the currently known cdks. p21 effectively inhibits cdk2, cdk3, cdk4, and cdk6 kinases.	SIGNOR-29954
P56706	O75197	2	binding	up-regulates	0.674	Wnt proteins bind to the frizzled receptors and lrp5/6 co-receptors, and through stabilizing the critical mediator betBeta-catenin, initiate a complex signaling cascade that plays an important role in regulating cell proliferation and differentiation.	SIGNOR-131981
Q16695	Q9BY66	0	demethylation	up-regulates activity	0.2	KDM5 subfamily is capable of removing tri‐ and di‐ methyl marks from lysine 4 on histone H3 (H3K4). Depending on the methylation site, its effect on transcription can be either activating or repressing.	SIGNOR-264309
P61586	O14827	0	guanine nucleotide exchange factor	up-regulates activity	0.553	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-260573
Q93034	O75553	1	polyubiquitination	down-regulates quantity by destabilization	0.327	SOCS7 promotes Dab1 polyubiquitylation and degradation. SOCS7-CRL5 complexes stimulate the ubiquitylation and turnover of Dab1. SOCS7, a CRL5 substrate adaptor protein, is also required for neocortical layering. SOCS7-CRL5 complexes stimulate the ubiquitylation and turnover of Dab1.	SIGNOR-272140
P11413	O15294	0	glycosylation	up-regulates activity	0.264	O-GlcNAcylation of G6PD promotes the pentose phosphate pathway and tumor growth\|O-GlcNAcylation of G6PD activates enzyme activity\|G6PD is dynamically modified by O-GlcNAc at serine 84\|In cells, a single set of antagonistic enzymes-O-GlcNAc transferase (OGT) and O-GlcNAc hydrolase are responsible for the addition and removal of GlcNAc moiety, respectively.	SIGNOR-267582
P23458	Q8N6P7	2	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
P12931	P23743	1	phosphorylation	up-regulates	0.459	Diacylglycerol kinase-alpha phosphorylation by src on y335 is required for activation, membrane recruitment and hgf-induced cell motility.	SIGNOR-157365
P33981	Q96PE2	1	phosphorylation	down-regulates activity	0.2	Because Mps1 also phosphorylates ARHGEF17, the Mps1\u2013ARHGEF17 complex is short lived and promotes its own dissociation, which in turn releases Mps1 and ARHGEF17 from the kinetochore.\|ARHGEF17 and Mps1 interact during mitosis and Mps1 phosphorylates ARHGEF17.	SIGNOR-279352
P11309	P63104	1	phosphorylation	up-regulates activity	0.31	PIM1 phosphorylates the AR and 14-3-3 ζ and coordinates their interaction. PIM1 phosphorylation of the AR and 14-3-3 ζ enhances their interaction and shifts their occupancy on chromatin, resulting in 14-3-3 ζ co-regulation of AR, likely by recruiting other AR co-regulators such as hnRNPK and TRIM28.	SIGNOR-277574
P11309	P30307	1	phosphorylation	up-regulates activity	0.348	First, Pim-1 activates the Cdc25C phosphatase directly through phosphorylation, very probably at the N-terminal part of the protein.\|We find that phosphorylation by Pim-1 enhances the phosphatase activity of Cdc25C and in transfected cells that are arrested in G2/M by bleomycin, Pim-1 can enhance progression into G1.	SIGNOR-278298
P53779	O95644	1	phosphorylation	down-regulates	0.445	We show that jnk, erk, and p38 physically associate with the nfatc n-terminal regulatory domain and can directly phosphorylate functionally important residues involved in regulating nfatc subcellular localization, namely ser(172) and the conserved nfatc ser-pro repeats.	SIGNOR-74556
P27361	P51812	1	phosphorylation	up-regulates	0.73	We have generated two monoclonal antibodies that recognize two phosphorylated sites, p-ser227 and p-thr577, in the n- and c-terminal kinase domains of rsk2, respectively. phosphorylation and activation of rsk2 by uv light involves the erk pathway	SIGNOR-81460
Q96QB1	P35579	2	binding	down-regulates activity	0.2	Our study has shown that Dlc1 interacts with non-muscle myosin heavy chain II-A (Myh9), plectin and spectrin proteins in different multiprotein complexes. Overexpression of Dlc1 led to increased phosphorylation of Myh9 protein and activation of Rac1 GTPase. Dlc1 interacts with phosphorylated Myh9 (Ser-1943). This association of Dlc1 with S1943 phosphorylated Myh9, suggests that Dlc1 may be involved in reduced Myh9 filament stability.	SIGNOR-269283
O96017	P21127	1	phosphorylation	up-regulates activity	0.2	CHK2 kinase promotes pre-mRNA splicing via phosphorylating CDK11p110\|Unexpectedly, CHK2 kinase constitutively phosphorylated CDK11(p110) in a DNA damage-independent manner.	SIGNOR-279458
P63092	Q9HBW0	2	binding	up-regulates activity	0.388	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-256784
Q10571	Q09472	2	binding	up-regulates activity	0.342	Taken together, our results indicate that MN1 is a transcription coactivator rather than a sequence-specific transcription factor, and that it may stimulate RAR/RXR-mediated transcription through interaction with p160 and p300.	SIGNOR-256020
Q05655	P45983	1	phosphorylation	up-regulates	0.501	By contrast, after uv stimulation, rela directly induces the expression of pkcdelta, which in turn activates jnk.	SIGNOR-151428
Q9UBV4	Q9NPG1	2	binding	up-regulates	0.617	Wnt proteins bind to the frizzled receptors and lrp5/6 co-receptors, and through stabilizing the critical mediator betBeta-catenin, initiate a complex signaling cascade that plays an important role in regulating cell proliferation and differentiation.	SIGNOR-131674
Q9UKV3	P78362	0	phosphorylation	up-regulates	0.476	Here, we show that srpk2 binds and phosphorylates acinus, an sr protein essential for rna splicing, and redistributes it from the nuclear speckles to the nucleoplasm, resulting in cyclin a1 but not a2 up-regulation. Acinus s422d, an srpk2 phosphorylation mimetic, enhances cyclin a1 transcription, whereas acinus s422a, an unphosphorylatable mutant, blocks the stimulatory effect of srpk2	SIGNOR-179006
P06241	Q15417	1	phosphorylation	down-regulates activity	0.333	We identify, for the first time, tyrosine-phosphorylated calponin h3 within COS 7 cells, before and after their transfection with the pSV vector containing cDNA encoding the cytoplasmic, Src-related, tyrosine kinase, Fyn. we have localized the tyrosines phosphorylated without actin to Tyr261 in calponin h3 and to Tyr261 and Tyr182 in calponin h1. Tyrosine phosphorylation of calponins inhibits their binding to F-actin	SIGNOR-251159
P06213	P07550	1	phosphorylation	down-regulates activity	0.377	Insulin (10 nM)-stimulated rIR-catalyzed phosphorylation of β2-adrenergic receptor peptides was found prominently in peptides L339 (Tyr350 and Tyr354), T362 (Tyr364), and to a lesser extent peptides Y132 (Tyr132 and Tyr141), and I135 (Tyr141). G-protein-linked receptors and intrinsic tyrosine-kinase growth receptors represent two prominent modalities in cell signaling. Cross-regulation among members of both receptor superfamilies has been reported, including the counter-regulatory effects of insulin on β-adrenergic catecholamine action. Cells stimulated by insulin show loss of function and increased phosphotyrosine content of β2-adrenergic receptors.	SIGNOR-251302
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
P68400	Q9UNN4	1	phosphorylation	up-regulates activity	0.424	ALF was able to stabilize the binding of TBP to DNA, but it could not stabilize TBP mutants A184E, N189E, E191R, and R205E nor could it facilitate binding of the TBP-like factor TRF2/TLF to a consensus TATA element. However, phosphorylation of ALF with casein kinase II resulted in the partial restoration of complex formation using mutant TBPs. \| Because the residues involved (Ser-280, Ser-281, Ser-316, and Ser-321) are conserved in ALF (Ser-356, Ser-357, Ser-418, and Ser-423), we tested whether its activity might also be affected by this modification. We first showed that ALF and TFIIAα/β polypeptides incubated with casein kinase II and [γ-32P]ATP could be labeled.	SIGNOR-250873
P61371	Q9UBR4	2	binding	up-regulates activity	0.623	The Lhx3-Isl1 C terminus interaction was dependent on the LIM domains of Lhx3. The combinatorial expression of the LIM homeodomain proteins Isl1, Isl2, Lhx1, and Lhx3 in subsets of developing motor neurons correlates with the future organization of these neurons into motor columns with distinct innervation targets, implying a functional role for LIM homeodomain protein combinations in the specification of neuronal identity	SIGNOR-220169
P17612	Q16790	1	phosphorylation	up-regulates	0.2	Here, we report that thr443 phosphorylation at the intracellular domain of ca ix by protein kinase a (pka) is critical for its activation in hypoxic cells, with the fullest activity of ca ix also requiring dephosphorylation of ser448.	SIGNOR-176973
P31749	Q05397	1	phosphorylation	up-regulates activity	0.43	In mouse embryonic fibroblasts, AKT1 phosphorylates S695 and T700 on FAK ( xref ) and in human colon cancer cells AKT1 phosphorylates S517, S601, and S695 on FAK ( xref , xref ).\|This suggests that further activation of FAK by AKT1 ( beyond that of Pten loss alone ) is required to promote FA turnover , increase tumor invasion , and ultimately elicit brain metastasis .	SIGNOR-279777
P13385	P36896	2	binding	up-regulates activity	0.728	Nodal effects are dependent upon interactions with Cripto, a small cysteine-rich extracellular protein that is attached to the plasma membrane through a glycosyl phosphatidyl inositol linkage. Cripto interacts with Nodal and ALK4, independently, and promotes the formation of a stable high affinity complex with activin type II receptors.	SIGNOR-251938
Q9UM47	Q92585	2	binding	up-regulates	0.79	Maml1 binds to the ankyrin repeat domain of all four mammalian notch receptors, forms a dna-binding complex with icn and rbp-jkappa, and amplifies notch-induced transcription of hes1.	SIGNOR-84838
Q15078	Q6ZMQ8	2	binding	up-regulates	0.443	Apoptosis-associated tyrosine kinase is a cdk5 activator p35 binding protein.	SIGNOR-118403
P35452	O00470	2	binding	up-regulates activity	0.422	We now show that the Hoxa-9 protein physically interacts with Meis1 proteins. Hox proteins from the other AbdB-like paralogs, Hoxa-10, Hoxa-11, Hoxd-12, and Hoxb-13, also form DNA binding complexes with Meis1b. DNA binding complexes formed by Meis1 with Hox proteins dissociate much more slowly than DNA complexes with Meis1 alone, suggesting that Hox proteins stabilize the interactions of Meis1 proteins with their DNA targets.	SIGNOR-241232
Q9BZL4	Q5VT25	0	phosphorylation	down-regulates activity	0.558	Identification of the Phosphorylation Site of p85 on Threonine 560 by MRCKα-CAT \| Wild-type p85 but not the mutant p85AA, when phosphorylated in vitro with MRCKα-CAT, showed significant reduction in the rate of MLC2 dephosphorylation. These results confirm a similar observation with MBS130 where phosphorylation of a conserved threonine 695 within a highly conserved motif was essential for the inhibition of phosphatase catalytic activity	SIGNOR-250724
P45983	P22736	1	phosphorylation	down-regulates	0.5	We also identified the exact phosphorylation site of jnk to be serine 95 at the n terminus of tr3, around which a classical jnk phosphorylation motif exists. Furthermore, we demonstrated that tr3 phosphorylation by jnk coincided with its ubiquitination and degradation, resulting in the loss of its mitogenic activity.	SIGNOR-149998
Q14289	P40763	1	phosphorylation	up-regulates activity	0.428	These results imply that following EGF stimulation, PYK2 enhances a STAT3-dependent IL8 expression, thus creating a positive feedback loop between ErbB receptors, PYK2, and IL8.\|These results suggest that PYK2-induced STAT3 phosphorylation is crucial for IL8 secretion, while IL8 is crucial for EGF-induced MMP9 transcription (Figure xref ) and for SKBR3 invasion (Figure xref ).	SIGNOR-279429
O75874	Q12772	0	transcriptional regulation	up-regulates quantity by expression	0.277	IDH1 gene transcription is sterol regulated and activated by SREBP-1a and SREBP-2 in human hepatoma HepG2 cells\|evidence that IDH1 may regulate lipogenesis in hepatic cells	SIGNOR-253133
P46109	Q18PE1	2	binding	up-regulates activity	0.343	Here, we identify two tyrosine residues in Dok-7 that are phosphorylated by Agrin stimulation, and show that two proteins, Crk and Crk-L, are recruited to these phosphorylation sites in Dok-7.	SIGNOR-273848
P16298	P19484	1	dephosphorylation	up-regulates activity	0.377	Lysosomal Ca2+ release via mucolipin 1 (MCOLN1) activates calcineurin, which binds and de-phosphorylates TFEB, thus promoting its nuclear translocation.	SIGNOR-255306
Q86V86	P61073	1	phosphorylation	up-regulates quantity	0.263	Pim-1 and Pim-3 enhance phosphorylation and cell surface expression of CXCR4.\|The intracellular tail of CXCR4 can be phosphorylated in vitro at Ser339 by Pim-1 kinase and by Pim-3, as shown here, but not by Pim-2.	SIGNOR-279092
P61764	O96018	2	binding	up-regulates activity	0.501	Munc18-1 is a neuronal protein that interacts with syntaxin 1 and is required for synaptic vesicle exocytosis. We have now identified two Munc18-1-interacting proteins called Mint1 and Mint2 that may mediate the function of Munc18-1.	SIGNOR-264036
O14757	O14757	2	phosphorylation	up-regulates activity	0.2	This suggests that Ser296 is probably one of the sites autophosphorylated when Chk1 is fully activated [21], despite the sequence surrounding Ser296 (FSKHIQS296NL) being only weakly related to the optimal Chk1-recognition motif (M/I/L/V)-X-(R/K)-X-X-(S/T), where (S/T) is the phosphorylated residue	SIGNOR-219240
P16403	Q12888	2	binding	down-regulates activity	0.2	Similarly, DNA-PK-mediated phosphorylation of H1.2 at T146 enhances p53 transcriptional activity by impeding H1.2 binding to p53 and thereby attenuating its suppressive effects on p53 transactivation.	SIGNOR-273833
P22681	O14492	2	binding	up-regulates	0.647	Aps couples c-cbl to theinsulinreceptor, resulting in ubiquitination of theinsulinreceptor. The aps adapter protein couples theinsulinreceptor to the phosphorylation of c-cbl and facilitates ligand-stimulated ubiquitination of theinsulinreceptor.	SIGNOR-109691
Q5NUL3	P63092	2	binding	up-regulates activity	0.25	Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. \| We defined positive coupling if any member of the subfamily scored LogRAi ‚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-256773
Q53ET0	Q9H0K1	0	phosphorylation	down-regulates	0.743	Phosphorylation on the ser171 residue of crtc2 by ampk and ampk-related kinases, including the salt-inducible kinases (siks), is critical for determining the activity, cellular localization, and degradation of crtc2	SIGNOR-142218
Q8IYK4	P08123	1	glycosylation	up-regulates activity	0.4	Recombinant GLT25D1 and GLT25D2 enzymes showed a strong galactosyltransferase activity toward various types of collagen and toward the serum mannose-binding lectin MBL, which contains a collagen domain. Amino acid analysis of the products of GLT25D1 and GLT25D2 reactions confirmed the transfer of galactose to hydroxylysine residues.	SIGNOR-261157
Q13185	P84243	2	binding	up-regulates activity	0.2	A core characteristic of heterochromatin is its association with heterochromatin protein 1 (HP1) proteins, a highly conserved family of chromosomal proteins that bind to di- and trimethylated H3K9 via a conserved N-terminal domain called the chromodomain (CD) HP1 proteins are a highly conserved family of eukaryotic proteins that bind to methylated histone H3 lysine 9 (H3K9) and are required for heterochromatic gene silencing.	SIGNOR-264494
O14641	Q9ULV1	2	binding	up-regulates activity	0.751	Through study of FZD4 and its associated ligand Norrin, we report that a minimum of three residues distal to the KTXXXW motif in the C-terminal tail of Frizzled-4 are essential for DVL recruitment and robust Lef/Tcf-dependent transcriptional activation in response to Norrin.	SIGNOR-258958
P24941	P04183	1	phosphorylation	down-regulates	0.296	Given that the dimeric form of tk1 is less active than the tetrameric, we propose that mitotic phosphorylation of serine-13 is of physiological importance, in that it may counteract atp-dependent activation of tk1 by affecting its quaternary structure, thus attenuating its enzymatic function at the g2/m phase.	SIGNOR-95578
P04150	P05026	1	transcriptional regulation	down-regulates quantity by repression	0.2	Together these data indicate that the 21-base pair sequence represents a true MRE/GRE and that optimal activation of the human Na/K-ATPase beta1 promoter is controlled by mineralocorticoid and glucocorticoid hormones. It appears that an interaction of MR with GR on the beta1 promoter effectively down-regulates transcription.	SIGNOR-254864
Q9NVW2	O43679	1	polyubiquitination	down-regulates quantity by destabilization	0.452	Here we identify RLIM as a ubiquitin protein ligase that is able to target CLIM cofactors for degradation through the 26S proteasome pathway.	SIGNOR-272616
P10275	P10275	2	binding	up-regulates activity	0.2	The unliganded AR resides predominately in the cytoplasm as a heteromeric complex with hsp90 and other chaperone proteins. These chaperone proteins maintain AR in a form that is receptive to ligand binding. Regulation of gene expression by androgen-activated AR occurs through receptor nuclear translocation, dimerization, and binding to androgen response elements (AREs) in the DNA of target genes.	SIGNOR-251537
P12931	O95297	1	phosphorylation	up-regulates	0.468	Indeed, our studies indicated that cross-linking of pzr by cona lead to activation of c-src, which may be responsible for phosphorylation of pzr and possibly other proteins. Phosphorylation of pzr in turn recruits shp-2, which by itself is an essential signal transducertyrosine residues 241 and 263 embedded in the itims are responsible for the tyrosine phosphorylation of pzr	SIGNOR-113410
P31749	P31152	0	phosphorylation	up-regulates activity	0.271	Mechanistically, MAPK4 directly bound and activated AKT by phosphorylation of the activation loop at threonine 308.	SIGNOR-275450
P20810	P20807	2	binding	down-regulates activity	0.569	In addition to Ca2+, calpastatin has a key role in the regulation of calpain. Calpastatin, a heat-stable protein ranging from ~70 to ~140 kDa of apparent molecular weight depending on the cell type, is considered a specific endogenous inhibitor of calpains\|The calpastatin molecule contains four inhibitory units [75–77]. Each of these units binds to one calpain molecule [75–77]. Therefore, the ratio calpain/calpastatin plays a key role in the regulation of calpain activity [78–80]. The inhibitory effect of calpastatin requires Ca2+-dependent high-affinity binding to three sites of calpain	SIGNOR-251603
P17861-2	O75460	0	post transcriptional regulation	up-regulates quantity by expression	0.647	Upon activation by oligomerization and autophosphorylation, the cytosolic RNase domain of IRE1 mediates an unconventional splicing of the mRNA of X-box-binding protein 1 (XBP1). The spliced and frameshifted transcript encodes XBP1S, a bZIP transcription factor inducing the expression of numerous UPR effector genes that enhance ER folding capacity.	SIGNOR-260183
Q8WWK9	Q96GD4	0	phosphorylation	up-regulates	0.296	Here, we report that tmap is a novel substrate of the aurora b kinase. Ser627 of tmap was specifically phosphorylated by aurora b both in vitro and in vivo. Nearly all mutations at the phosphorylation motif had dramatic effects on the subcellular localization of tmap.	SIGNOR-165410
Q0VAM2	Q8TBJ4	2	binding	up-regulates activity	0.2	Oncogenic effects of imbalanced PRG3 are mediated via PRG3-RasGEF1 interaction and Ras activation. PRG3 interacts with RasGEF1 in vivo.We could further show that PRG3 executes the binding to RasGEF1 predominantly via its C-terminal domain (CT) and in the consequence causes Ras activation.	SIGNOR-261806
Q13882	Q6P1J9	1	phosphorylation	down-regulates activity	0.368	PTK6 impairs the coactivator function of parafibromin.\|To study the functional consequence of parafibromin phosphorylation by PTK6, we examined the effect of PTK6 inhibition on Wnt signal activation.	SIGNOR-279273
Q9NYV6	Q13131	0	phosphorylation	down-regulates	0.2	We show that ampk down-regulates rrna synthesis under glucose restriction by phosphorylating the rna polymerase i (pol i)-associated transcription factor tif-ia at a single serine residue (ser-635).	SIGNOR-188403
Q6UWE0	Q99816	1	monoubiquitination	down-regulates quantity	0.527	Tal increases ubiquitylation of Tsg101 and affects its solubility in a RING- and PTAP-dependent manner. Tal-mediated ubiquitylation of Tsg101 inactivates this sorting function and concomitantly translocates Tsg101 from relatively insoluble membrane subdomains. Presumably, the coordinated action of Tal and a deubiquitylation enzyme (DUB) enables recycling of Tsg101 and reloading of cargo.	SIGNOR-271509
O95747	Q13153	1	phosphorylation	down-regulates activity	0.382	OSR1 phosphorylated threonine 84 in the N-terminal regulatory domain of PAK1. phosphorylation of PAK1 by OSR1 desensitizes PAK1 to activation by small G proteins, providing a modulatory input to PAK1 activity.	SIGNOR-250210

P31271

Q15375

1

transcriptional regulation

up-regulates quantity by expression

0.291

Analysis of normalized luciferase expression confirmed that wt HOXA13 regulates gene expression through the EphA7 cis-regulatory DNA element

SIGNOR-261631

Q00535

Q9NQT8

1

phosphorylation

down-regulates activity

0.365

Overexpression of Cdk5 or its activator p35 promoted and inhibition of Cdk5 activity prevented the KIF13B-TRPV1 association, indicating that Cdk5 promotes TRPV1 anterograde transport by mediating the motor-cargo association. Cdk5 phosphorylates KIF13B at Thr-506, a residue located in the FHA domain. T506A mutation reduced the motor-cargo interaction and the cell-permeable TAT-T506 peptide, targeting to the Thr-506, decreased TRPV1 surface localization, demonstrating the essential role of Thr-506 phosphorylation in TRPV1 transport.

SIGNOR-262737

Q01130

Q9UBN7

0

deacetylation

up-regulates

0.356

Our data support a model in which hdac6 has a key role in the maintenance of srsf2 protein level by inhibiting tip60_mediated acetylation and proteasomal degradation.

SIGNOR-170590

P63279

Q9UKY1

1

sumoylation

up-regulates quantity by stabilization

0.452

Here, we report that the SUMO-E2 conjugating enzyme Ubc9 was identified to interact with ZHX1 by an interaction screen using a yeast two-hybrid system. This interaction was confirmed by co-immunoprecipitation and co-localization assays. Further study showed that ZHX1 is SUMOylated by Ubc9 with SUMO1 at the sites K159, K454, and K626. Furthermore, we demonstrated that the SUMOylation of ZHX1 regulated the stability, ubiquitination and transcriptional activity of ZHX1. The sumoylation of zinc‐fingers and homeoboxes 1 (ZHX1) by ubc9 regulates its stability and transcriptional repression activity. However, in the current work, we demonstrated that ZHX1 was only SUMOylated by SUMO1.

SIGNOR-263901

Q15796

P12755

2

binding

down-regulates activity

0.741

The ski and snon protein family associate with and repress the activity of smad2, smad3, and smad4, three members of the tgf-fl signaling pathway

SIGNOR-236155

O14548

Q99683

0

phosphorylation

up-regulates activity

0.2

Phosphorylation of EB1 by ASK1 promotes the binding of EB1 to CLIP-170 and p150 glued.

SIGNOR-278341

O15259

Q14289

0

phosphorylation

up-regulates activity

0.461

Pyk2 Induces Tyrosine Phosphorylation of NPHP1 at Tyr 46, Tyr 349, and Tyr 721.|The expression of wild-type Pyk2 enhances the amount of co-precipitating PACS-1 with wild-type NPHP1 compared with the presence of the kinase-dead variant of Pyk2.

SIGNOR-278272

P08754

P25105

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-257174

Q9UNE7

Q99717

1

ubiquitination

down-regulates

0.343

In ad-dition, some proteins (e.g. Chip, carboxyl terminus of hsc70-interacting protein) inhibit the signaling activi-ties of smad1/5 by recruiting smad1/5 from the functional r-/co-smad complex and further pro-moting the ubiquitination and degradation of smad1/5 in a chaperone-independent manne

SIGNOR-195690

P08754

P49683

2

binding

up-regulates activity

0.278

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-256837

Q9Y6Q9

Q16539

0

phosphorylation

up-regulates activity

0.526

P38 MAPK and JNK can phosphorylate multiple sites on SRC-3, including S505, S543, S860, and S867. Our results suggest that several kinases are important for phosphorylating SRC-3 and enhancing its interaction with DNA-dependent transcription factors and other coactivators.

SIGNOR-250103

Q99574

Q9UKV5

0

polyubiquitination

down-regulates quantity by destabilization

0.296

In this study, we demonstrate that two ER-associated E3 ligases, Hrd1 and gp78, are involved in the ubiquitination and degradation of mutant neuroserpin.

SIGNOR-272756

Q495A1

P15151

2

binding

up-regulates activity

0.867

Poliovirus receptor (PVR/CD155) is a ligand of the paired NK receptors, DNAM-1 (activating) and TIGIT (inhibiting). NK cells can kill cancer cells expressing PVR via the DNAM-1-mediated activating signaling (11,12).

SIGNOR-261425

P49959

Q92878

2

binding

up-regulates

0.2

To organize the mrn complex, the mre11 exonuclease directly binds nbs1, dna, and rad50.

SIGNOR-157478

O14965

O43521

1

phosphorylation

down-regulates quantity by destabilization

0.376

We observed that BimEL is phosphorylated by Aurora A early in mitosis and reversed by PP2A after mitotic exit. Aurora A phosphorylation stimulated binding of BimEL to the F-box protein beta-transducin repeat containing E3 ubiquitin protein ligase and promoted ubiquitination and degradation of BimEL.

SIGNOR-276248

Q01638

Q9NPH3

2

binding

up-regulates activity

0.504

The initial step in IL-33 signal transduction is ligand-induced conformational changes in IL-33R, which facilitate recruitment of interleukin-1 receptor accessory protein (IL-1RAP).

SIGNOR-277715

P09958

P46531

2

binding

up-regulates

0.667

The proteolytic activity of furin responsible for processing full length notch-1 (p300) plays a critical role in notch signaling.

SIGNOR-196914

Q92466

Q9UPU5

0

deubiquitination

up-regulates

0.703

Usp24-mediated ddb2 deubiquitination prevents ddb2 degradation

SIGNOR-199731

Q00987

Q9H2X6

0

phosphorylation

down-regulates activity

0.537

HIPK2 inhibits both MDM2 gene and protein by, respectively, p53-dependent and independent regulations.|This p53-independent effect is likely mediated by HIPK2 catalytic activity and we found that HIPK2 phosphorylates MDM2 in vitro.

SIGNOR-279465

P25116

Q15831

0

phosphorylation

up-regulates activity

0.2

LKB1 phosphorylates PAR-1 at the T408 site xref .|LKB1 thus positively regulates PAR-1 at the postsynapse.

SIGNOR-278992

P06239

P06127

1

phosphorylation

up-regulates activity

0.541

Tyrosine phosphorylation of cd5 requires lck activity. We propose that t cell activation mediates cd5 tyrosine phosphorylation at residues y429 and y463 mainly through the activation of lck

SIGNOR-106799

P23469

P06213

1

dephosphorylation

down-regulates activity

0.285

In this study, we showed that receptor-type PTPepsilon (PTP epsilonM) dephosphorylated IR in rat primary hepatocytes and tyrosines 972, 1158, 1162 and 1163| These results suggest that PTPepsilonM is a negative regulator of IR signaling and involved in insulin-induced glucose metabolism mainly through direct dephosphorylation and inactivation of IR in hepatocytes and liver.

SIGNOR-248444

O60240

P17612

0

phosphorylation

down-regulates activity

0.504

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

SIGNOR-250028

P08581

P62993

2

binding

up-regulates activity

0.695

For activation of the mitogen-activated protein kinase (MAPK) cascades, c-MET activation stimulates the activity of the rat sarcoma viral oncogene homolog (RAS) guanine nucleotide exchanger son of sevenless (SOS) via binding with SHC and GRB2 leading to the activation of RAS.

SIGNOR-256261

Q13214

O60462

2

binding

up-regulates activity

0.59

Further examination of the composition of the functional Sema3B receptor revealed that, unlike Sema3A, which signals exclusively using the NP1 receptor, Sema3B utilizes both NP1 and NP2 for signal transduction.

SIGNOR-261816

P08151

O43312

2

binding

up-regulates

0.543

Mim is a shh-responsive gene that can potentiate gli transcriptional activity.MIM Appears to regulate target gene expression through its association with the gli complex

SIGNOR-157650

P10301

P12931

0

phosphorylation

down-regulates activity

0.58

The small gtpase, r-ras, affects cell adhesion by maintaining integrin activity. Activated src oncogene phosphorylates r-ras and suppresses integrin activity. the src phosphorylation site in r-ras was tyrosine 66

SIGNOR-111189

Q9Y222

P15514

1

transcriptional regulation

up-regulates quantity by expression

0.2

Notably, amphiregulin (Areg), thrombospondin-1 (Tsp-1), JunB, Egr1, adrenomedullin (Adm), Bcl-3 and methyl-CpG binding domain protein 1 (Mbd1) were downregulated in the lungs from Dmp1-null mice while Gas1 and Ect2 genes were upregulated.

SIGNOR-261582

P37231

Q9UBK2

1

transcriptional regulation

up-regulates quantity by expression

0.903

NFIA binds to and activates the brown-fat-specific enhancers even before differentiation and later facilitates the binding of PPARgamma|NFIA has at least three functions on the transcriptional regulation of brown fat [2]. First, NFIA activates adipogenesis per se, through activating the transcription of Pparg, which encodes PPARgamma. Second, NFIA also activates the brown-fat-specific gene expression (such as Ucp1 and Ppargc1a) independent of the degree of adipocyte differentiation, through facilitating the binding of PPARgamma to the brown-fat-specific enhancers. Third, NFIA represses myogenesis through suppression of myogenic transcription factors such as Myod1 as well as Myog,

SIGNOR-263984

P32245

O00253

2

binding

down-regulates

0.774

Recombinant agouti-related protein was a potent, selective antagonist of mc3r and mc4r,.

SIGNOR-51104

P14784

P23458

2

binding

up-regulates

0.631

In lymphocytes, binding of il-15 to the il-2/15rbg heterodimer induces jak1 activation that subsequently phosphorylates stat3 via the b-chain and jak3/stat5 activation via its g-chain

SIGNOR-204972

P01106

O75626

0

transcriptional regulation

down-regulates quantity by repression

0.436

The positive regulatory domain i binding factor 1 (prdi-bf1 or blimp-1) protein represses the transcription of specific target genes, including c-myc, the mhc class ii trans-activator, pax-5, and cd23b

SIGNOR-99119

P37231

P35222

2

binding

down-regulates activity

0.538

Oncogenic beta-catenin resists proteasomal degradation by inhibiting PPARgamma activity, which requires its TCF/LEF binding domain

SIGNOR-256072

P15374

P62987

1

cleavage

up-regulates quantity

0.801

Here we provide data suggesting that two of the four mammalian ubiquitin precursors, UBA52 and UBA80, are processed mostly post-translationally whereas the other two, UBB and UBC, probably undergo a combination of co- and post-translational processing. Using an unbiased biochemical approach we found that UCHL3, USP9X, USP7, USP5 and Otulin/Gumby/FAM105b are by far the most active DUBs acting on these precursors.

SIGNOR-270827

P27708

P28482

0

phosphorylation

up-regulates

0.382

Cad is a multifunctional protein that initiates and regulates mammalian de novo pyrimidine biosynthesis. The activation of the pathway required for cell proliferation is a consequence of the phosphorylation of cad thr-456 by mitogen-activated protein (map) kinase.Activated map kinase (erk1/2), the enzyme responsible for the phosphorylation of thr-456, was also present in larger amounts in the nucleus than the cytosol

SIGNOR-137171

P58012

P63279

0

sumoylation

up-regulates

0.698

Foxl2 is sumoylated by ubc9, and this ubc9-mediated sumoylation is essential to the transcriptional activity of foxl2 on the star promoter. / the sumoylation site was identified at lysine 25 of foxl2

SIGNOR-187901

P19235

Q9Y314

0

ubiquitination

up-regulates activity

0.331

Erythropoietin receptors associate with a ubiquitin ligase, p33RUL, and require its activity for erythropoietin-induced proliferation. This receptor-associated ubiquitin ligase, RUL, co-precipitated with EpoR from mammalian cells and mediated ubiquitination of EpoR. RUL mediates EpoR ubiquitination in COS7 cells and is inducibly ubiquitinated after Epo treatment. This observation is consistent with the lack of effects on EpoR stability by RUL-mediated ubiquitination in COS7 cells (Fig. 4).

SIGNOR-271477

Q9H492

Q9NT62

2

binding

up-regulates

0.855

Lc3-i is activated by the same atg7 involved in atg12 conjugation, transferred to atg3, a second e2-like enzyme, and finally conjugated to pe.

SIGNOR-191543

P49842

P01111

1

phosphorylation

up-regulates activity

0.306

STK19 Phosphorylates NRAS Protein at Serine 89|STK19 phosphorylates NRAS to enhance its binding to its downstream effectors and promotes oncogenic NRAS-mediated melanocyte malignant transformation.|

SIGNOR-264566

Q00526

P38936

2

binding

down-regulates

0.664

P21cip1 is a cyclin-dependent kinase (cdk) inhibitor that is transcriptionally activated by p53 in response to dna damage. We have explored the interaction of p21 with the currently known cdks. p21 effectively inhibits cdk2, cdk3, cdk4, and cdk6 kinases.

SIGNOR-29954

P56706

O75197

2

binding

up-regulates

0.674

Wnt proteins bind to the frizzled receptors and lrp5/6 co-receptors, and through stabilizing the critical mediator betBeta-catenin, initiate a complex signaling cascade that plays an important role in regulating cell proliferation and differentiation.

SIGNOR-131981

Q16695

Q9BY66

0

demethylation

up-regulates activity

0.2

KDM5 subfamily is capable of removing tri‐ and di‐ methyl marks from lysine 4 on histone H3 (H3K4). Depending on the methylation site, its effect on transcription can be either activating or repressing.

SIGNOR-264309

P61586

O14827

0

guanine nucleotide exchange factor

up-regulates activity

0.553

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-260573

Q93034

O75553

1

polyubiquitination

down-regulates quantity by destabilization

0.327

SOCS7 promotes Dab1 polyubiquitylation and degradation. SOCS7-CRL5 complexes stimulate the ubiquitylation and turnover of Dab1. SOCS7, a CRL5 substrate adaptor protein, is also required for neocortical layering. SOCS7-CRL5 complexes stimulate the ubiquitylation and turnover of Dab1.

SIGNOR-272140

P11413

O15294

0

glycosylation

up-regulates activity

0.264

O-GlcNAcylation of G6PD promotes the pentose phosphate pathway and tumor growth|O-GlcNAcylation of G6PD activates enzyme activity|G6PD is dynamically modified by O-GlcNAc at serine 84|In cells, a single set of antagonistic enzymes-O-GlcNAc transferase (OGT) and O-GlcNAc hydrolase are responsible for the addition and removal of GlcNAc moiety, respectively.

SIGNOR-267582

P23458

Q8N6P7

2

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

P12931

P23743

1

phosphorylation

up-regulates

0.459

Diacylglycerol kinase-alpha phosphorylation by src on y335 is required for activation, membrane recruitment and hgf-induced cell motility.

SIGNOR-157365

P33981

Q96PE2

1

phosphorylation

down-regulates activity

0.2

Because Mps1 also phosphorylates ARHGEF17, the Mps1\u2013ARHGEF17 complex is short lived and promotes its own dissociation, which in turn releases Mps1 and ARHGEF17 from the kinetochore.|ARHGEF17 and Mps1 interact during mitosis and Mps1 phosphorylates ARHGEF17.

SIGNOR-279352

P11309

P63104

1

phosphorylation

up-regulates activity

0.31

PIM1 phosphorylates the AR and 14-3-3 ζ and coordinates their interaction. PIM1 phosphorylation of the AR and 14-3-3 ζ enhances their interaction and shifts their occupancy on chromatin, resulting in 14-3-3 ζ co-regulation of AR, likely by recruiting other AR co-regulators such as hnRNPK and TRIM28.

SIGNOR-277574

P11309

P30307

1

phosphorylation

up-regulates activity

0.348

First, Pim-1 activates the Cdc25C phosphatase directly through phosphorylation, very probably at the N-terminal part of the protein.|We find that phosphorylation by Pim-1 enhances the phosphatase activity of Cdc25C and in transfected cells that are arrested in G2/M by bleomycin, Pim-1 can enhance progression into G1.

SIGNOR-278298

P53779

O95644

1

phosphorylation

down-regulates

0.445

We show that jnk, erk, and p38 physically associate with the nfatc n-terminal regulatory domain and can directly phosphorylate functionally important residues involved in regulating nfatc subcellular localization, namely ser(172) and the conserved nfatc ser-pro repeats.

SIGNOR-74556

P27361

P51812

1

phosphorylation

up-regulates

0.73

We have generated two monoclonal antibodies that recognize two phosphorylated sites, p-ser227 and p-thr577, in the n- and c-terminal kinase domains of rsk2, respectively. phosphorylation and activation of rsk2 by uv light involves the erk pathway

SIGNOR-81460

Q96QB1

P35579

2

binding

down-regulates activity

0.2

Our study has shown that Dlc1 interacts with non-muscle myosin heavy chain II-A (Myh9), plectin and spectrin proteins in different multiprotein complexes. Overexpression of Dlc1 led to increased phosphorylation of Myh9 protein and activation of Rac1 GTPase. Dlc1 interacts with phosphorylated Myh9 (Ser-1943). This association of Dlc1 with S1943 phosphorylated Myh9, suggests that Dlc1 may be involved in reduced Myh9 filament stability.

SIGNOR-269283

O96017

P21127

1

phosphorylation

up-regulates activity

0.2

CHK2 kinase promotes pre-mRNA splicing via phosphorylating CDK11p110|Unexpectedly, CHK2 kinase constitutively phosphorylated CDK11(p110) in a DNA damage-independent manner.

SIGNOR-279458

P63092

Q9HBW0

2

binding

up-regulates activity

0.388

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-256784

Q10571

Q09472

2

binding

up-regulates activity

0.342

Taken together, our results indicate that MN1 is a transcription coactivator rather than a sequence-specific transcription factor, and that it may stimulate RAR/RXR-mediated transcription through interaction with p160 and p300.

SIGNOR-256020

Q05655

P45983

1

phosphorylation

up-regulates

0.501

By contrast, after uv stimulation, rela directly induces the expression of pkcdelta, which in turn activates jnk.

SIGNOR-151428

Q9UBV4

Q9NPG1

2

binding

up-regulates

0.617

Wnt proteins bind to the frizzled receptors and lrp5/6 co-receptors, and through stabilizing the critical mediator betBeta-catenin, initiate a complex signaling cascade that plays an important role in regulating cell proliferation and differentiation.

SIGNOR-131674

Q9UKV3

P78362

0

phosphorylation

up-regulates

0.476

Here, we show that srpk2 binds and phosphorylates acinus, an sr protein essential for rna splicing, and redistributes it from the nuclear speckles to the nucleoplasm, resulting in cyclin a1 but not a2 up-regulation. Acinus s422d, an srpk2 phosphorylation mimetic, enhances cyclin a1 transcription, whereas acinus s422a, an unphosphorylatable mutant, blocks the stimulatory effect of srpk2

SIGNOR-179006

P06241

Q15417

1

phosphorylation

down-regulates activity

0.333

We identify, for the first time, tyrosine-phosphorylated calponin h3 within COS 7 cells, before and after their transfection with the pSV vector containing cDNA encoding the cytoplasmic, Src-related, tyrosine kinase, Fyn. we have localized the tyrosines phosphorylated without actin to Tyr261 in calponin h3 and to Tyr261 and Tyr182 in calponin h1. Tyrosine phosphorylation of calponins inhibits their binding to F-actin

SIGNOR-251159

P06213

P07550

1

phosphorylation

down-regulates activity

0.377

Insulin (10 nM)-stimulated rIR-catalyzed phosphorylation of β2-adrenergic receptor peptides was found prominently in peptides L339 (Tyr350 and Tyr354), T362 (Tyr364), and to a lesser extent peptides Y132 (Tyr132 and Tyr141), and I135 (Tyr141). G-protein-linked receptors and intrinsic tyrosine-kinase growth receptors represent two prominent modalities in cell signaling. Cross-regulation among members of both receptor superfamilies has been reported, including the counter-regulatory effects of insulin on β-adrenergic catecholamine action. Cells stimulated by insulin show loss of function and increased phosphotyrosine content of β2-adrenergic receptors.

SIGNOR-251302

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

P68400

Q9UNN4

1

phosphorylation

up-regulates activity

0.424

ALF was able to stabilize the binding of TBP to DNA, but it could not stabilize TBP mutants A184E, N189E, E191R, and R205E nor could it facilitate binding of the TBP-like factor TRF2/TLF to a consensus TATA element. However, phosphorylation of ALF with casein kinase II resulted in the partial restoration of complex formation using mutant TBPs. | Because the residues involved (Ser-280, Ser-281, Ser-316, and Ser-321) are conserved in ALF (Ser-356, Ser-357, Ser-418, and Ser-423), we tested whether its activity might also be affected by this modification. We first showed that ALF and TFIIAα/β polypeptides incubated with casein kinase II and [γ-32P]ATP could be labeled.

SIGNOR-250873

P61371

Q9UBR4

2

binding

up-regulates activity

0.623

The Lhx3-Isl1 C terminus interaction was dependent on the LIM domains of Lhx3. The combinatorial expression of the LIM homeodomain proteins Isl1, Isl2, Lhx1, and Lhx3 in subsets of developing motor neurons correlates with the future organization of these neurons into motor columns with distinct innervation targets, implying a functional role for LIM homeodomain protein combinations in the specification of neuronal identity

SIGNOR-220169

P17612

Q16790

1

phosphorylation

up-regulates

0.2

Here, we report that thr443 phosphorylation at the intracellular domain of ca ix by protein kinase a (pka) is critical for its activation in hypoxic cells, with the fullest activity of ca ix also requiring dephosphorylation of ser448.

SIGNOR-176973

P31749

Q05397

1

phosphorylation

up-regulates activity

0.43

In mouse embryonic fibroblasts, AKT1 phosphorylates S695 and T700 on FAK ( xref ) and in human colon cancer cells AKT1 phosphorylates S517, S601, and S695 on FAK ( xref , xref ).|This suggests that further activation of FAK by AKT1 ( beyond that of Pten loss alone ) is required to promote FA turnover , increase tumor invasion , and ultimately elicit brain metastasis .

SIGNOR-279777

P13385

P36896

2

binding

up-regulates activity

0.728

Nodal effects are dependent upon interactions with Cripto, a small cysteine-rich extracellular protein that is attached to the plasma membrane through a glycosyl phosphatidyl inositol linkage. Cripto interacts with Nodal and ALK4, independently, and promotes the formation of a stable high affinity complex with activin type II receptors.

SIGNOR-251938

Q9UM47

Q92585

2

binding

up-regulates

0.79

Maml1 binds to the ankyrin repeat domain of all four mammalian notch receptors, forms a dna-binding complex with icn and rbp-jkappa, and amplifies notch-induced transcription of hes1.

SIGNOR-84838

Q15078

Q6ZMQ8

2

binding

up-regulates

0.443

Apoptosis-associated tyrosine kinase is a cdk5 activator p35 binding protein.

SIGNOR-118403

P35452

O00470

2

binding

up-regulates activity

0.422

We now show that the Hoxa-9 protein physically interacts with Meis1 proteins. Hox proteins from the other AbdB-like paralogs, Hoxa-10, Hoxa-11, Hoxd-12, and Hoxb-13, also form DNA binding complexes with Meis1b. DNA binding complexes formed by Meis1 with Hox proteins dissociate much more slowly than DNA complexes with Meis1 alone, suggesting that Hox proteins stabilize the interactions of Meis1 proteins with their DNA targets.

SIGNOR-241232

Q9BZL4

Q5VT25

0

phosphorylation

down-regulates activity

0.558

Identification of the Phosphorylation Site of p85 on Threonine 560 by MRCKα-CAT | Wild-type p85 but not the mutant p85AA, when phosphorylated in vitro with MRCKα-CAT, showed significant reduction in the rate of MLC2 dephosphorylation. These results confirm a similar observation with MBS130 where phosphorylation of a conserved threonine 695 within a highly conserved motif was essential for the inhibition of phosphatase catalytic activity

SIGNOR-250724

P45983

P22736

1

phosphorylation

down-regulates

0.5

We also identified the exact phosphorylation site of jnk to be serine 95 at the n terminus of tr3, around which a classical jnk phosphorylation motif exists. Furthermore, we demonstrated that tr3 phosphorylation by jnk coincided with its ubiquitination and degradation, resulting in the loss of its mitogenic activity.

SIGNOR-149998

Q14289

P40763

1

phosphorylation

up-regulates activity

0.428

These results imply that following EGF stimulation, PYK2 enhances a STAT3-dependent IL8 expression, thus creating a positive feedback loop between ErbB receptors, PYK2, and IL8.|These results suggest that PYK2-induced STAT3 phosphorylation is crucial for IL8 secretion, while IL8 is crucial for EGF-induced MMP9 transcription (Figure xref ) and for SKBR3 invasion (Figure xref ).

SIGNOR-279429

O75874

Q12772

0

transcriptional regulation

up-regulates quantity by expression

0.277

IDH1 gene transcription is sterol regulated and activated by SREBP-1a and SREBP-2 in human hepatoma HepG2 cells|evidence that IDH1 may regulate lipogenesis in hepatic cells

SIGNOR-253133

P46109

Q18PE1

2

binding

up-regulates activity

0.343

Here, we identify two tyrosine residues in Dok-7 that are phosphorylated by Agrin stimulation, and show that two proteins, Crk and Crk-L, are recruited to these phosphorylation sites in Dok-7.

SIGNOR-273848

P16298

P19484

1

dephosphorylation

up-regulates activity

0.377

Lysosomal Ca2+ release via mucolipin 1 (MCOLN1) activates calcineurin, which binds and de-phosphorylates TFEB, thus promoting its nuclear translocation.

SIGNOR-255306

Q86V86

P61073

1

phosphorylation

up-regulates quantity

0.263

Pim-1 and Pim-3 enhance phosphorylation and cell surface expression of CXCR4.|The intracellular tail of CXCR4 can be phosphorylated in vitro at Ser339 by Pim-1 kinase and by Pim-3, as shown here, but not by Pim-2.

SIGNOR-279092

P61764

O96018

2

binding

up-regulates activity

0.501

Munc18-1 is a neuronal protein that interacts with syntaxin 1 and is required for synaptic vesicle exocytosis. We have now identified two Munc18-1-interacting proteins called Mint1 and Mint2 that may mediate the function of Munc18-1.

SIGNOR-264036

O14757

2

phosphorylation

up-regulates activity

0.2

This suggests that Ser296 is probably one of the sites autophosphorylated when Chk1 is fully activated [21], despite the sequence surrounding Ser296 (FSKHIQS296NL) being only weakly related to the optimal Chk1-recognition motif (M/I/L/V)-X-(R/K)-X-X-(S/T), where (S/T) is the phosphorylated residue

SIGNOR-219240

P16403

Q12888

2

binding

down-regulates activity

0.2

Similarly, DNA-PK-mediated phosphorylation of H1.2 at T146 enhances p53 transcriptional activity by impeding H1.2 binding to p53 and thereby attenuating its suppressive effects on p53 transactivation.

SIGNOR-273833

P22681

O14492

2

binding

up-regulates

0.647

Aps couples c-cbl to theinsulinreceptor, resulting in ubiquitination of theinsulinreceptor. The aps adapter protein couples theinsulinreceptor to the phosphorylation of c-cbl and facilitates ligand-stimulated ubiquitination of theinsulinreceptor.

SIGNOR-109691

Q5NUL3

P63092

2

binding

up-regulates activity

0.25

Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ‚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-256773

Q53ET0

Q9H0K1

0

phosphorylation

down-regulates

0.743

Phosphorylation on the ser171 residue of crtc2 by ampk and ampk-related kinases, including the salt-inducible kinases (siks), is critical for determining the activity, cellular localization, and degradation of crtc2

SIGNOR-142218

Q8IYK4

P08123

1

glycosylation

up-regulates activity

0.4

Recombinant GLT25D1 and GLT25D2 enzymes showed a strong galactosyltransferase activity toward various types of collagen and toward the serum mannose-binding lectin MBL, which contains a collagen domain. Amino acid analysis of the products of GLT25D1 and GLT25D2 reactions confirmed the transfer of galactose to hydroxylysine residues.

SIGNOR-261157

Q13185

P84243

2

binding

up-regulates activity

0.2

A core characteristic of heterochromatin is its association with heterochromatin protein 1 (HP1) proteins, a highly conserved family of chromosomal proteins that bind to di- and trimethylated H3K9 via a conserved N-terminal domain called the chromodomain (CD) HP1 proteins are a highly conserved family of eukaryotic proteins that bind to methylated histone H3 lysine 9 (H3K9) and are required for heterochromatic gene silencing.

SIGNOR-264494

O14641

Q9ULV1

2

binding

up-regulates activity

0.751

Through study of FZD4 and its associated ligand Norrin, we report that a minimum of three residues distal to the KTXXXW motif in the C-terminal tail of Frizzled-4 are essential for DVL recruitment and robust Lef/Tcf-dependent transcriptional activation in response to Norrin.

SIGNOR-258958

P24941

P04183

1

phosphorylation

down-regulates

0.296

Given that the dimeric form of tk1 is less active than the tetrameric, we propose that mitotic phosphorylation of serine-13 is of physiological importance, in that it may counteract atp-dependent activation of tk1 by affecting its quaternary structure, thus attenuating its enzymatic function at the g2/m phase.

SIGNOR-95578

P04150

P05026

1

transcriptional regulation

down-regulates quantity by repression

0.2

Together these data indicate that the 21-base pair sequence represents a true MRE/GRE and that optimal activation of the human Na/K-ATPase beta1 promoter is controlled by mineralocorticoid and glucocorticoid hormones. It appears that an interaction of MR with GR on the beta1 promoter effectively down-regulates transcription.

SIGNOR-254864

Q9NVW2

O43679

1

polyubiquitination

down-regulates quantity by destabilization

0.452

Here we identify RLIM as a ubiquitin protein ligase that is able to target CLIM cofactors for degradation through the 26S proteasome pathway.

SIGNOR-272616

P10275

2

binding

up-regulates activity

0.2

The unliganded AR resides predominately in the cytoplasm as a heteromeric complex with hsp90 and other chaperone proteins. These chaperone proteins maintain AR in a form that is receptive to ligand binding. Regulation of gene expression by androgen-activated AR occurs through receptor nuclear translocation, dimerization, and binding to androgen response elements (AREs) in the DNA of target genes.

SIGNOR-251537

P12931

O95297

1

phosphorylation

up-regulates

0.468

Indeed, our studies indicated that cross-linking of pzr by cona lead to activation of c-src, which may be responsible for phosphorylation of pzr and possibly other proteins. Phosphorylation of pzr in turn recruits shp-2, which by itself is an essential signal transducertyrosine residues 241 and 263 embedded in the itims are responsible for the tyrosine phosphorylation of pzr

SIGNOR-113410

P31749

P31152

0

phosphorylation

up-regulates activity

0.271

Mechanistically, MAPK4 directly bound and activated AKT by phosphorylation of the activation loop at threonine 308.

SIGNOR-275450

P20810

P20807

2

binding

down-regulates activity

0.569

In addition to Ca2+, calpastatin has a key role in the regulation of calpain. Calpastatin, a heat-stable protein ranging from ~70 to ~140 kDa of apparent molecular weight depending on the cell type, is considered a specific endogenous inhibitor of calpains|The calpastatin molecule contains four inhibitory units [75–77]. Each of these units binds to one calpain molecule [75–77]. Therefore, the ratio calpain/calpastatin plays a key role in the regulation of calpain activity [78–80]. The inhibitory effect of calpastatin requires Ca2+-dependent high-affinity binding to three sites of calpain

SIGNOR-251603

P17861-2

O75460

0

post transcriptional regulation

up-regulates quantity by expression

0.647

Upon activation by oligomerization and autophosphorylation, the cytosolic RNase domain of IRE1 mediates an unconventional splicing of the mRNA of X-box-binding protein 1 (XBP1). The spliced and frameshifted transcript encodes XBP1S, a bZIP transcription factor inducing the expression of numerous UPR effector genes that enhance ER folding capacity.

SIGNOR-260183

Q8WWK9

Q96GD4

0

phosphorylation

up-regulates

0.296

Here, we report that tmap is a novel substrate of the aurora b kinase. Ser627 of tmap was specifically phosphorylated by aurora b both in vitro and in vivo. Nearly all mutations at the phosphorylation motif had dramatic effects on the subcellular localization of tmap.

SIGNOR-165410

Q0VAM2

Q8TBJ4

2

binding

up-regulates activity

0.2

Oncogenic effects of imbalanced PRG3 are mediated via PRG3-RasGEF1 interaction and Ras activation. PRG3 interacts with RasGEF1 in vivo.We could further show that PRG3 executes the binding to RasGEF1 predominantly via its C-terminal domain (CT) and in the consequence causes Ras activation.

SIGNOR-261806

Q13882

Q6P1J9

1

phosphorylation

down-regulates activity

0.368

PTK6 impairs the coactivator function of parafibromin.|To study the functional consequence of parafibromin phosphorylation by PTK6, we examined the effect of PTK6 inhibition on Wnt signal activation.

SIGNOR-279273

Q9NYV6

Q13131

0

phosphorylation

down-regulates

0.2

We show that ampk down-regulates rrna synthesis under glucose restriction by phosphorylating the rna polymerase i (pol i)-associated transcription factor tif-ia at a single serine residue (ser-635).

SIGNOR-188403

Q6UWE0

Q99816

1

monoubiquitination

down-regulates quantity

0.527

Tal increases ubiquitylation of Tsg101 and affects its solubility in a RING- and PTAP-dependent manner. Tal-mediated ubiquitylation of Tsg101 inactivates this sorting function and concomitantly translocates Tsg101 from relatively insoluble membrane subdomains. Presumably, the coordinated action of Tal and a deubiquitylation enzyme (DUB) enables recycling of Tsg101 and reloading of cargo.

SIGNOR-271509

O95747

Q13153

1

phosphorylation

down-regulates activity

0.382

OSR1 phosphorylated threonine 84 in the N-terminal regulatory domain of PAK1. phosphorylation of PAK1 by OSR1 desensitizes PAK1 to activation by small G proteins, providing a modulatory input to PAK1 activity.

SIGNOR-250210