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
P10586	P19174	1	dephosphorylation	down-regulates	0.2	Here we show that lar reduces the constitutive tyrosine autophosphorylation and kinase activity of ret-men2a but not ret-men2b, accompanying a significant decrease of phosphorylation of phospholipase cgamma, akt, and erk1/2.	SIGNOR-85166
O75925	Q13642	1	sumoylation	down-regulates	0.256	Pias1 (the protein inhibitor of activated stat1) interacts with kyot2 directly and attenuates kyot2-mediated transcriptional repression. We demonstrate that kyot2 is modified by sumoylation at two lysine residues, k144 and k171. Sumoylation of the transfected kyot2 is enhanced by pias1	SIGNOR-154801
P23759	Q06330	2	binding	up-regulates	0.363	Nicd regulates pax7 through interaction with rbp-j, which binds to two consensus sites upstream of the pax7 gene.	SIGNOR-196948
P06493	Q9NQS7	1	phosphorylation	up-regulates	0.759	Here, we report that cdk1 phosphorylates thr 59 and thr 388 on inner centromere protein (incenp), which regulates the localization and kinase activity of aurora-b from prophase to metaphase. The replacement of endogenous incenp with t388a resulted in the delay of progression from metaphase to anaphase.	SIGNOR-143387
P68431	Q9BYW2	0	trimethylation	up-regulates activity	0.2	Our results suggest that HYPB HMTase may coordinate histone methylation and transcriptional regulation in mammals and open perspective for the further study of the potential roles of HYPB protein in hematopoiesis and pathogenesis of HD.	SIGNOR-269071
P08670	P17612	0	phosphorylation	down-regulates activity	0.309	Ser-46 was phosphorylated preferentially by cAMP-dependent protein kinase. Both kinases reacted with Ser-6, Ser-24, Ser-38, Ser-50, and Ser-65. Domain- and sequence-specific phosphorylation of vimentin induces disassembly of the filament structure.	SIGNOR-250068
Q92585	Q06330	2	binding	up-regulates	0.875	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 hes0	SIGNOR-84919
O43603	Q03113	2	binding	up-regulates activity	0.25	Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. \| We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. \| The score associated to this interaction has a LogRAi ≥ -1.0.	SIGNOR-257296
O14965	Q9NRM7	1	phosphorylation	up-regulates	0.38	On the basis of these observations, we conclude that s83 of lats2 is a phosphorylation target of aurora-a and this phosphorylation plays a role of the centrosomal localization of lats2.	SIGNOR-124830
O60260	P05067	1	ubiquitination	down-regulates quantity	0.2	Similarly, in transgenic AD mice models, lentiviral parkin expression ubiquitinates Abeta to reduce its intracellular levels while preventing plaque deposition, and this is associated with induction of beclin dependent autophagy .\|Thus, parkin reduces Abeta levels by enhancing both UPS- and autophagy dependent clearance of Abeta.	SIGNOR-278709
Q9UKA4	Q13576	2	binding	up-regulates activity	0.437	We show that IQGAP2 is regulated by an interaction with the A-kinase anchoring protein AKAP220. Phosphorylation of IQGAP2 via AKAP220-anchored PKA leads to enhanced Rac binding. Since AKAPs function to direct PKA toward specific substrates, we proposed that the formation of an IQGAP2/AKAP220/PKA ternary complex sharpens the response to cAMP.	SIGNOR-273740
Q9UQM7	Q13698	1	phosphorylation	up-regulates activity	0.449	To identify the regulatory sites of phosphorylation under physiologically relevant conditions, Ca(V)1.1 channels were purified from skeletal muscle and sites of phosphorylation on the α1 subunit were identified by mass spectrometry. Two phosphorylation sites were identified in the proximal C-terminal domain, serine 1575 (S1575) and threonine 1579 (T1579), which are conserved in cardiac Ca(V)1.2 channels (S1700 and T1704, respectively). In vitro phosphorylation revealed that Ca(V)1.1-S1575 is a substrate for both cAMP-dependent protein kinase and calcium/calmodulin-dependent protein kinase II, whereas Ca(V)1.1-T1579 is a substrate for casein kinase 2.	SIGNOR-263113
P06241	O15117	1	phosphorylation	up-regulates activity	0.2	two tyrosines, Tyr595 and Tyr651, of FYB are major sites of phosphorylation by FYN-T and mediate binding to SLP-76 in Jurkat T cells. We further demonstrate that the loss of SLP-76 binding by mutation of these sites markedly reduced the ability of FYN-T-FYB-SLP-76 to up-regulate IL-2 transcription.	SIGNOR-251163
P29474	P62140	0	dephosphorylation	up-regulates activity	0.2	The increase in eNOS activity coincided with specific dephosphorylation of eNOS-Thr495, known to enhance eNOS activity. Inhibition of protein phosphatase 1 (PP1) by calyculin A, tautomycetin, or siRNA against PP1 reversed NF-induced eNOS-Thr495 dephosphorylation	SIGNOR-248574
Q96GD4	P84243	1	phosphorylation	up-regulates activity	0.2	Phosphorylation at ser-11 (h3s10ph) by aurkb is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis. Phosphorylation at ser-11 (h3s10ph) by aurkb is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis.	SIGNOR-118890
Q14164	Q04206	1	phosphorylation	up-regulates	0.439	Overexpressed ikkepsilon and tbk1 phosphorylate ser-536 in vivo and in vitro.	SIGNOR-129943
P03186	P25963	1	deubiquitination	down-regulates activity	0.2	In the current study, we have found that BPLF1 interferes with innate immune activation by targeting multiple intermediates along the TLR signal transduction pathway, including TRAF6, NEMO, and IκBα. BPLF1 can remove ubiquitin tags from proteins in the TLR signaling cascade. This inhibits TLR signaling and decreases the expression of immune response genes.	SIGNOR-266744
P11229	P63096	2	binding	up-regulates activity	0.399	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-256735
Q96MG7	Q8WV22	2	binding	up-regulates activity	0.2	MAGE-G1 enhances NSE1 ubiquitin ligase activity in vitro.	SIGNOR-265489
P11362	P56945	1	phosphorylation	up-regulates	0.256	Five tyrosine phosphorylation sites were identified in p130cas on tyr-128, tyr-249, tyr-306, tyr-327, and tyr-410. These tyrosine residues are all located in the substrate domain of p130cas that mediates binding to the sh2 domain of the adaptor molecule crk. Fgf-1-transduced fibroblasts demonstrated a > 10-fold increase in migration, an observation correlated with increased tyrosine phosphorylation of p125fak and p130cas.	SIGNOR-82760
Q13131	P05091	1	phosphorylation	up-regulates activity	0.2	Further studies demonstrate that in the absence of LDLR, AMPK phosphorylates ALDH2 at threonine 356 and enables its nuclear translocation. Nuclear ALDH2 interacts with HDAC3 and represses transcription of a lysosomal proton pump protein ATP6V0E2, critical for maintaining lysosomal function, autophagy, and degradation of oxidized low-density lipid protein.	SIGNOR-271863
P28482	O00141	0	phosphorylation	up-regulates activity	0.309	SGK1 was found to physically interact with ERK1/2 as well as MEK1/2. Furthermore, SGK1 mediated the phosphorylation of ERK2 on Ser(29) in a serum-dependent manner. Replacement of Ser(29) to aspartic acid, which mimics the phosphorylation of Ser(29), enhanced the ERK2 activity as well as the MEK/ERK complexes formation.	SIGNOR-276223
Q9BX63	P27694	2	binding	up-regulates activity	0.696	Our data are consistent with a model in which FANCJ associates with RPA in a DNA damage-inducible manner and through the protein interaction RPA stimulates FANCJ helicase to better unwind duplex DNA substrates. These findings identify RPA as the first regulatory partner of FANCJ.	SIGNOR-259187
Q07869	O00327	2	transcriptional regulation	up-regulates quantity by expression	0.596	We demonstrate that PPARalpha plays a specific role in the peripheral circadian control because it is required to maintain the circadian rhythm of the master clock gene brain and muscle Arnt-like protein 1 (bmal1) in vivo. This regulation occurs via a direct binding of PPARalpha on a potential PPARalpha response element located in the bmal1 promoter. Reversely, BMAL1 is an upstream regulator of PPARalpha gene expression.	SIGNOR-268024
Q92565	P62834	1	guanine nucleotide exchange factor	up-regulates activity	0.648	We found here that cAMP-dependent activation of Epac1 and Rap1 but not PKA is able to activate CaMKI to mediate Ser47 (S47) phosphorylation in GCM1. Epac1 and Epac2 proteins were identified as cAMP-binding proteins with guanine nucleotide exchange factor (GEF) activities for the small GTPases, Rap1 and Rap2	SIGNOR-262682
P20042	P68400	0	phosphorylation	up-regulates	0.35	The n-terminal domain of the human eif2beta subunit and the ck2 phosphorylation sites are required for its function. These results suggest that ser2 and ser67 contribute to the important role of the n-terminal region of eif2beta for its function in mammals.	SIGNOR-140994
P62826	O75592	0	guanine nucleotide exchange factor	up-regulates activity	0.296	MYCBP2 Is a Nuclear GEF for Ran in DRG Neurons—Next, we studied whether or not MYCBP2 modulates the interaction between Ran/RanGAP1. MYCBP2 contains an N-terminal RCC1-like domain (Fig. 8C) (13), and RCC1 is a known GEF for Ran, indicating a potential functional interaction between MYCBP2 and Ran.	SIGNOR-261204
Q7Z5L9	P14316	2	binding	up-regulates activity	0.631	We have identified two novel proteins that interact specifically with the C-terminal repression domain of Interferon Regulatory Factor-2 (IRF-2). These proteins, which we term IRF-2 binding proteins 1 and 2 (IRF-2BP1 and IRF-2BP2, the latter having two splicing isoforms, A and B), are nuclear proteins, and have the properties of IRF-2-dependent transcriptional co-repressors that can inhibit both enhancer-activated and basal transcription in a manner that is not dependent upon histone deacetylation.	SIGNOR-224073
Q05086	P54727	1	polyubiquitination	down-regulates quantity by destabilization	0.405	Here we report the identification of HHR23A, one of the human homologues of the yeast DNA repair protein Rad23, as an E6-independent target of E6AP. E6AP-mediated ubiquitination and degradation of HHR23A and HHR23B.	SIGNOR-272551
P48736	P01112	2	binding	up-regulates	0.821	Grb2 binds and activates sos, which then activates ras, and this activates p110 independently of p85. it was also described that ras interacts with pi3k in a direct manner. lysine residue 227 is essential for the interaction of ras with pi3k we show here, however, that in vivo there are marked quantitative differences in the ability of ki- and ha-ras to activate raf-1 and phosphoinositide 3 kinase. the mechanism of raf-1 activation is complex, but it is clear that one important role of ras is to recruit raf-1 to the plasma membrane where a series of events is initiated that ultimately leads to full raf-1 activation. These events include tyrosine, serine, and threonine phosphorylation plus interactions with ras, phospholipids, 14-3-3 proteins and their associated proteins, and possibly dimerization.	SIGNOR-59816
Q99717	Q9HAU4	0	ubiquitination	down-regulates	0.736	Smurf1 and smurf2 are e3 ubiquitin ligases known to suppress tgf-beta signaling through degra-dation of smads and receptors for tgf-beta and bmps	SIGNOR-193378
P84243	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-265418
P04629	Q9BV47	0	dephosphorylation	down-regulates activity	0.371	NEAP and DUSP26 dephosphorylated TrkA and FGFR1 directly.\|We found that NEAP, but not its phosphatase-defective mutant, suppressed nerve growth factor (NGF) receptor TrkA and fibroblast growth factor receptor 1 (FGFR1) activation in PC12 cells	SIGNOR-277105
Q92879	P31749	0	phosphorylation	up-regulates activity	0.41	In normal myoblasts, Akt kinase phosphorylates CUGBP1 at Ser28 and increases interactions of CUGBP1 with cyclin D1 mRNA.	SIGNOR-280173
Q07812	Q92843	2	binding	down-regulates	0.478	Bcl-w may protect largely via its ability to associate with bax because it could efficiently protect xem from tbid and bid, bad, hrk, and bmf bh3 peptides	SIGNOR-154518
Q8N1N5	Q13153	2	binding	up-regulates	0.415	We further found that cripak interacted with pak1 through the n-terminal regulatory domain and inhibited pak1 kinase in both in vitro and in vivo assays.	SIGNOR-141467
P63096	P21731	2	binding	up-regulates activity	0.25	Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. \| We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. \| The score associated to this interaction has a LogRAi ≥ -1.0.	SIGNOR-256744
P18848	Q96I59	1	transcriptional regulation	up-regulates quantity by expression	0.2	QRICH1 promotes the expression of translation-related genes. our combined ChIP-seq and RNA-seq analyses identified that QRICH1 and ATF4 were enriched at the promoters of these specific tRNA synthetases, and that ER stress positively regulated their transcription (Fig. 4I). Together, these findings suggest that QRICH1 and ATF4 modulate tRNA metabolic processes to promote secreted protein synthesis during ER stress.	SIGNOR-269423
P32249	P19086	2	binding	up-regulates activity	0.249	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-257110
P46777	O15350	2	binding	up-regulates	0.341	We report that rpl5 and rpl11 can also enhance the transcriptional activity of a p53 homolog tap73	SIGNOR-205517
P04049	P05771	0	phosphorylation	up-regulates	0.445	Pkc can effectively phosphorylate raf-1, this is a direct effect of activated pkc and not the result of raf-1 autophosphorylation. the sites of pkc-mediated raf-1 phosphorylation are deduced to be ser497 and ser619.	SIGNOR-37474
P23443	Q9H3D4	1	phosphorylation	down-regulates	0.2	Atm kinase is a master switch for the delta np63 alpha phosphorylation/degradation in human head and neck squamous cell carcinoma cells upon dna damage. We previously found that the pro-apoptotic dna damaging agent, cisplatin, mediated the proteasome-dependent degradation of delta np63 alpha associated with its increased phosphorylated status. We found that delta np63 alpha is phosphorylated in the time-dependent fashion at the following positions: s385, t397 and s466, which were surrounded by recognition motifs for atm, cdk2 and p70s6k kinases, respectively	SIGNOR-180771
O00141	P04150	1	phosphorylation	up-regulates activity	0.46	SGK1 also potentiated and maintained GR activation in the presence of cortisol, and even after cortisol withdrawal, by increasing GR phosphorylation and GR nuclear translocation\|Having demonstrated that SGK1 mediates the cortisol-induced increase in GR phosphorylation at the S203 and S211 phospho-sites, which enhance GR nuclear translocation, but not at the S226 site, which inhibits nuclear translocation	SIGNOR-251669
Q14114	Q05519	0	post transcriptional regulation	up-regulates quantity by stabilization	0.2	We demonstrate that SFRS11 directly binds to the 3' UTR of LRP8 mRNA, as well as to the third exon of apoE mRNA, resulting in stabilization of these mRNAs, eventually deactivating JNK signaling.	SIGNOR-269670
Q9HCJ2	P78352	2	binding	up-regulates activity	0.365	A possible function for the NGL–PSD-95 interaction is to couple trans-synaptic adhesion events to the recruitment of PSD-95 and other PSD-95-associated postsynaptic proteins. PSD-95 and liprin-α may be key synaptic scaffolding proteins that couple trans-synaptic adhesions to the assembly of synaptic proteins/vesicles	SIGNOR-264050
P33991	P24941	0	phosphorylation	down-regulates activity	0.767	We reported that the dna helicase activity of the human and mouse mcm4-6-7 complex, a sub-complex of the mcm2-7 heterohexamer, is inhibited by the phosphorylation by cdk2-cyclin a we identified six sites, including ser-32, ser-53, and thr-109, in the amino-terminal region of mouse mcm4 that are required for the phosphorylation with cdk2-cyclin a.	SIGNOR-100881
O60285	P31749	0	phosphorylation	up-regulates	0.262	Ser(600) in ark5 was found to be phosphorylated by active akt resulting in the activation of kinase activity.	SIGNOR-252591
P29475	Q16566	0	phosphorylation	down-regulates activity	0.357	It was found that purified recombinant nNOS was phosphorylated by CaM-K Ialpha, CaM-K IIalpha, and CaM-K IV at Ser847 in vitro. Replacement of Ser847 with Ala (S847A) prevented phosphorylation by CaM kinases. Phosphorylated recombinant wild-type nNOS at Ser847 (approximately 0.5 mol of phosphate incorporation into nNOS) exhibited a 30% decrease of Vmax with little change of both the Km for L-arginine and Kact for CaM relative to unphosphorylated enzyme. The activity of mutant S847D was decreased to a level 50-60% as much as the wild-type enzyme. The decreased NOS enzyme activity of phosphorylated nNOS at Ser847 and mutant S847D was partially due to suppression of CaM binding, but not to impairment of dimer formation which is thought to be essential for enzyme activation.	SIGNOR-250713
P60953	O94989	0	guanine nucleotide exchange factor	up-regulates activity	0.556	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-260541
Q01105	P67775	2	binding	down-regulates	0.531	Here we report that both the amino terminal fragment (i(2ntf);aa 1-175) and the carboxy terminal fragment (i(2ctf);aa 176-277) of i(2)(pp2a) inhibit pp2a by binding to its catalytic subunit pp2ac	SIGNOR-175719
P18031	O43561	1	dephosphorylation	down-regulates activity	0.504	Using a pharmacological inhibitor, we provide evidence that PTP1B activation and LAT dephosphorylation processes were required for irreversible platelet aggregation.\|In collagen-stimulated platelets, the signaling complexes recruited by tyrosine-phosphorylated LAT are essential for PLCgamma2 activation	SIGNOR-248403
Q92997	Q13467	2	binding	up-regulates activity	0.641	Upon ligand binding, DVL proteins are recruited to Frizzled receptors at the plasma membrane and co-recruit cytoplasmic transducers, such as Axin, CK1 and GSK3 binding protein (GBP), presumably along with their partners, to promote ?-catenin-dependent signalling.	SIGNOR-258963
Q9UBM7	Q15392	2	binding	up-regulates activity	0.653	DHCR7 coimmunoprecipitates DHCR24. Overexpression of functional DHCR24 increases DHCR7 activity. Because knockdown of DHCR24 has no effect on DHCR7 mRNA (Fig. 3A), this implies that this phenomenon is occurring posttranscriptionally. Thus, the interaction between the two terminal steps of cholesterol synthesis appears to have functional consequences.	SIGNOR-267249
P07288	Q9UQ80	0	transcriptional regulation	down-regulates quantity by repression	0.2	Ectopic expression of ebp1, a member of the PA2G4 family, inhibits the proliferation and induces the differentiation of human breast and prostate cancer cell lines. Ebp1 inhibits transcription of E2F1 and androgen receptor regulated genes such as prostate specific antigen (PSA) through its interactions with histone deacetylases (HDACs)	SIGNOR-253662
P16333	O00401	2	binding	up-regulates	0.78	Nck and cdc42 activate n-wasp by redundant mechanisms.	SIGNOR-107634
P45983	O14733	0	phosphorylation	up-regulates	0.699	Jnk is activated by jnk-activating kinase 1 (jnkk1), a dual specificity protein kinase that phosphorylates jnk on threonine 183 and tyrosine 185 residues.	SIGNOR-51199
P15529	P12931	0	phosphorylation	up-regulates activity	0.458	Src kinase phosphorylates CD46 at Y354 of the Cyt2 isoform in vitro.	SIGNOR-280127
P52564	O15264	1	phosphorylation	up-regulates activity	0.661	p38-δ is activated by environmental stress, extracellular stimulants, and MAPK kinase-3, -4, -6, and -7. we investigated whether this Thr180-Gly-Tyr182 motif was essential for p38-δ activation. Taken together, these results suggest that the dual phosphorylation TGY motif is required for p38-δ activation.	SIGNOR-273952
P42224	O75925	2	binding	down-regulates	0.795	Socs1 and socs3 target jak1 and gp130, respectively, near the plasma membrane to prevent cytoplasmic stats from being activated, whereas pias1 principally targets activated stat1 in the cell nucleus and prevents it from binding to dna.	SIGNOR-202039
Q13043	Q9Y243	0	phosphorylation	down-regulates	0.261	Full activation of mst1 requires an activation cleavage that is prevented by the phosphorylation of thr-387 by akt.	SIGNOR-201129
Q8N122	P54646	0	phosphorylation	down-regulates activity	0.693	These results suggest that AMPK activation can induce phosphorylation of both serine 722 and serine 792.\|Raptor phosphorylation is required for inhibition of mTORC1 by AMPK	SIGNOR-163463
Q13118	P04049	0	phosphorylation	down-regulates quantity by destabilization	0.2	RAF1 phosphorylates the Thr93 site of KLF10 in vivo. Since the phosphorylation of Thr93 enables KLF10 and PIN1 to bind, it seems likely that RAF-1 will have an effect on KLF10 stability that is similar to that of PIN1.PIN1 facilitates KLF10 protein degradation. (	SIGNOR-276502
P18545	P25098	0	phosphorylation	up-regulates activity	0.2	Mutation of Thr-62 (to Ala) in PDEgamma produced a GRK2 phosphorylation-resistant mutant that was less effective in associating with GRK2 in response to epidermal growth factor and did not potentiate the stimulation of p42/p44 mitogen-activated protein kinase by this growth factor.	SIGNOR-247823
P61586	Q7Z5H3	0	gtpase-activating protein	down-regulates activity	0.564	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-260476
P14618	Q9H6Z9	0	hydroxylation	up-regulates activity	0.436	Interaction of PKM2 with prolyl hydroxylase 3 (PHD3) enhances PKM2 binding to HIF-1α and PKM2 coactivator function. Mass spectrometry and anti-hydroxyproline antibody assays demonstrate PKM2 hydroxylation on proline-403/408. PHD3 knockdown inhibits PKM2 coactivator function, reduces glucose uptake and lactate production, and increases O(2) consumption in cancer cells.	SIGNOR-267476
Q96EQ8	O95786	1	polyubiquitination	down-regulates quantity by destabilization	0.671	Here, we found that RIG-I undergoes proteasomal degradation after conjugation to ubiquitin by RNF125. Further, RNF125 conjugates ubiquitin to MDA5, a family protein of RIG-I as well as IPS-1, which is also a downstream protein of RIG-I signaling that results in suppressing the functions of these proteins. Because RNF125 is enhanced by IFN, these functions constitute a negative regulatory loop circuit for IFN production.	SIGNOR-271647
P35222	Q12913	0	dephosphorylation	up-regulates activity	0.519	Our data demonstrate that CD148 promotes E-cadherin cell adhesion by regulating Rac1 activity, concomitant with modulation of p120, \u03b2-catenin, and Src tyrosine phosphorylation, and that this effect requires E-cadherin and p120 association.\|Taken together, it is likely that CD148 dephosphorylation of \u03b2-catenin enhances the cadherin cell adhesion independent of Rho family GTPases.	SIGNOR-276992
P18206	P12931	0	phosphorylation	down-regulates activity	0.76	The phosphorylation of vinculin on tyrosine residues 100 and 1065, mediated by SRC kinases, affects cell spreadingWhen phosphorylated, the vinculin tail exhibited significantly less binding to the vinculin head domain than the unphosphorylated tail.	SIGNOR-247424
O60469	P40763	2	binding	up-regulates activity	0.2	Our findings now further suggest that STAT3 and the adaptor protein SH2D2A interact with tyrosine‐containing motifs within the DSCAM/L1 ICDs. The SH2 domains of both STAT3 and SH2D2A are known to bind to phosphorylated tyrosine residues in the context of such motifs. Thus, the interactions between DSCAMs and SH2‐domain containing proteins seem to play a central and conserved role in Dscam signaling in the context of dynamic changes of tyrosine‐phosphorylation levels.	SIGNOR-264277
P10827	P10826	2	binding	up-regulates	0.416	Ee report that the retinoic acid receptors (rars), a distinct class of nuclear receptors, are also efficient heterodimer partners for trs	SIGNOR-133243
Q9NT62	Q9GZQ8	2	binding	up-regulates	0.835	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-191549
P12931	Q13177	1	phosphorylation	up-regulates	0.562	Pak2 became tyrosine phosphorylated in its n-terminal regulatory domain, where y130 was identified as the major phosphoacceptor site. Tyrosine phosphorylation-mediated superactivation of pak2 could be induced by overexpression of different src kinases or by inhibiting cellular tyrosine phosphatases with pervanadate and could be blocked by the src kinase inhibitor pp1 or by mutating the y130 residue.	SIGNOR-92460
Q9HC98	Q8TD19	0	phosphorylation	up-regulates activity	0.69	Nercc1/nek9 activates the nek6 and nek7 kinases. Nercc1 catalyzes the direct phosphorylation of prokaryotic recombinant nek6 at ser206 in vitro concomitant with 20-25-fold activation of nek6 activity.	SIGNOR-102996
P12931	P57737	1	phosphorylation	up-regulates activity	0.339	We establish that Src activity is indispensable for the interaction of Crn7 with Golgi membranes. Crn7 binds Src in vivo and can be phosphorylated by recombinant Src in vitro. We demonstrate that tyrosine-758 is the major Src phosphorylation site.	SIGNOR-274005
P29279	O75581	2	binding	up-regulates	0.2	Igfbp-4 physically interacted with a wnt receptor, frizzled 8 (frz8), and a wnt co-receptor, low-density lipoprotein receptor-related protein 6 (lrp6), and inhibited the binding of wnt3a to frz8 and lrp6.	SIGNOR-178875
P17252	Q86UX7	1	phosphorylation	up-regulates activity	0.2	PKC-induced phosphorylation events, as we have shown kindlin-3 to be a PKC phosphorylation target (Fig. 6C), are often followed by rapid activation of phosphatases (38).	SIGNOR-266415
Q9NP70	Q8IXL6	0	phosphorylation	up-regulates activity	0.664	Disruption of Fam20C completely eliminated AMBN phosphorylation, suggesting that Fam20C is the kinase that phosphorylates enamel matrix proteins in vivo (XREF_FIG).	SIGNOR-280010
Q86UR5	O15034	2	binding	down-regulates activity	0.501	SH3 domains of RBPs interact with RIMs. The enhancement of depolarization-induced secretion in PC12 cells by fusion proteins that suppress the associations of RBPs with RIMs and α1 suggests that RBPs may repress RIMs, either directly or through associated proteins.	SIGNOR-264361
P29590	O95405	2	binding	up-regulates	0.574	Cytoplasmic pml physically interacts with smad2/3 and sara (smad anchor for receptor activation) and is required for association of smad2/3 with sara and for the accumulation of sara and tgf-beta receptor in the early endosome.	SIGNOR-128744
Q15910	Q16539	0	phosphorylation	down-regulates quantity by destabilization	0.372	Here, we show that p38α kinase promotes EZH2 degradation in differentiating muscle cells through phosphorylation of threonine 372	SIGNOR-255663
Q96BR1	O43524	1	phosphorylation	down-regulates activity	0.435	Protein kinase SGK mediates survival signals by phosphorylating the forkhead transcription factor FKHRL1 (FOXO3a)\|However, SGK and Akt display differences with respect to the efficacy with which they phosphorylate the three regulatory sites on FKHRL1. While both kinases can phosphorylate Thr-32, SGK displays a marked preference for Ser-315 whereas Akt favors Ser-253. These findings suggest that SGK and Akt may coordinately regulate the function of FKHRL1 by phosphorylating this transcription factor at distinct sites. The efficient phosphorylation of these three sites on FKHRL1 by SGK and Akt appears to be critical to the ability of growth factors to suppress FKHRL1-dependent transcription, thereby preventing FKHRL1 from inducing cell cycle arrest and apoptosis.	SIGNOR-249135
P18031	Q05397	1	dephosphorylation	down-regulates activity	0.346	The focal adhesion kinase (FAK) is a key regulator of cell migration. Phosphorylation at Tyr-397 activates FAK \|The dephosphorylation at Tyr-397 in FAK triggered by wild-type alpha-actinin and PTP 1B caused a significant increase in cell migration.	SIGNOR-248431
Q15329	P45973	1	transcriptional regulation	down-regulates quantity by repression	0.2	We identified for E2F5 a repressor function for HP1a expression.	SIGNOR-261591
P61020	Q5S007	0	phosphorylation	up-regulates activity	0.599	Using recombinant proteins, we show here that LRRK2 phosphorylates Rab5b at its Thr6 residue in in vitro kinase assays with mass spectrophotometry analysis. Phosphorylation of Rab5b by LRRK2 on the threonine residue was confirmed by western analysis using cells stably expressing LRRK2 G2019S. The phosphomimetic T6D mutant exhibited stronger GTPase activity than that of the wild-type Rab5b. In addition, phosphorylation of Rab5b by LRRK2 also exhibited GTPase activity stronger than that of the unphosphorylated Rab5b protein.	SIGNOR-276873
O15379	Q13547	2	binding	up-regulates	0.533	Furthermore, smad7 caused hdac-1 bind to e2f-1 to form a ternary complex on chromosomal dna containing an e2f-binding motif and leading to repression in the activity of the e2f target genes.	SIGNOR-199964
Q13255	P63092	2	binding	up-regulates activity	0.407	MGluRs are members of the G-protein-coupled receptor (GPCR) superfamily, the most abundant receptor gene family in the human genome. GPCRs are membrane-bound proteins that are activated by extracellular ligands such as light, peptides, and neurotransmitters, and transduce intracellular signals via interactions with G proteins. The resulting change in conformation of the GPCR induced by ligand binding activates the G protein, which is composed of a heterotrimeric complex of α, β, and γ subunits.	SIGNOR-264077
P42224	P33076	1	transcriptional regulation	up-regulates	0.539	When IFN-γ binds to its receptor, the receptor-associated protein tyrosine kinases Janus kinase I (JAK1) and JAK2 are activated (37). This leads to the phosphorylation of STAT1, which then dimerizes, translocates to the nucleus, and activates its target promoters, including the pIV promoter of Ciita	SIGNOR-256249
P12931	P40763	1	phosphorylation	up-regulates activity	0.789	In the present study, we have delineated the mechanism by which Galpha16 stimulates STAT3 in human embryonic kidney 293 cells. A constitutively active Galpha16 mutant, Galpha16QL, stimulated STAT3-dependent luciferase activity as well as the phosphorylation of STAT3 at both Tyr705 and Ser727.The involvement of tyrosine kinases such as c-Src and Janus kinase 2 and 3 (JAK2 and JAK3) in Galpha16QL-induced activation of STAT3 was illustrated by the combined use of selective inhibitors and dominant negative mutants.	SIGNOR-247341
P17612	P05114	1	phosphorylation	down-regulates activity	0.307	PKA preferentially phosphorylates serine 6 in human HMGN1. specific phosphorylation of the NBD of HMGN proteins serves to prevent the interaction of these proteins with their chromatin targets during mitosis.	SIGNOR-249993
O60216	Q9Y6M0	0	cleavage	up-regulates	0.2	Rad21 is a component of the cohesin complex that holds sister chromatids together during mitosis and repairs double-strand dna breaks. Interestingly, rad21 is cleaved by a caspase-like esp1/separase at the onset of anaphase to trigger sister chromatid separation.	SIGNOR-115426
P63096	P09619	0	phosphorylation	up-regulates activity	0.2	RTKs directly phosphorylate Gαi on Y154, 155, and Y320.	SIGNOR-277232
P17612	Q9NRM7	1	phosphorylation	up-regulates	0.2	Here, we show that cyclic amp (camp)-dependent protein kinase (pka) phosphorylates lats and thereby enhances its activity sufficiently to phosphorylate yap on ser381.	SIGNOR-236994
P62993	P35568	2	binding	up-regulates activity	0.803	Association ofinsulinreceptor substrate 1 (irs-1) y895 with grb-2 mediates theinsulinsignaling involved in irs-1-deficient brown adipocyte mitogenesis.	SIGNOR-236614
Q00987	O15350	2	binding	down-regulates activity	0.837	Since HDM2, a key negative regulator of p53, also binds to and inhibits p73, we asked whether p73 could mediate Nutlin-3-induced apoptosis.	SIGNOR-255470
Q9Y6E2	Q14152	2	binding	up-regulates activity	0.324	BZW2, as an evolutionary highly conserved protein, interacts with eIF2 and eIF3 and promotes ternary complex formation in vitro	SIGNOR-261221
P31749	P56279	2	binding	up-regulates	0.825	Full-length tcl1 and its isoforms bind to akt / in in vitro kinase assays using gsk-3_ as a substrate, we found that the presence of any of the tcl1 family proteins (tcl1, mtcp1, or tcl1b) as gst fusion proteins significantly enhanced akt-induced gsk-3_ phosphorylation	SIGNOR-81680
Q9NX76	Q9NZQ7	1	stabilization	up-regulates quantity by stabilization	0.47	Furthermore, the observations that (i) CMTM6 affects PD-L1 protein stability at late time points after biosynthesis; (ii) CMTM6, CMTM4 and PD-L1 interact, as shown by co-immunoprecipitation; and that (iii) CMTM6 is largely located at the cell surface, collectively suggest a model in which CMTM6 interacts with PD-L1 at the tumour cell surface and thereby protects it from degradation	SIGNOR-274980
P07333	P16885	1	null	up-regulates	0.369	Studies with multipotent precursor cell lines (Fig. 4A) indicate that CSF-1R Tyr-807 and Tyr-721 promote macrophage differentiation via the PLC-Œ≥2 pathway	SIGNOR-255570
P80370	P46531	2	binding	down-regulates activity	0.518	Moreover, the interaction of DLK1 with NOTCH1 caused an inhibition of basal NOTCH signaling in preadipocytes and mesenchymal multipotent cells. In this work, we demonstrate, for the first time, that DLK2 interacts with itself, with DLK1, and with the same NOTCH1 receptor region as DLK1 does. We demonstrate also that the interaction of DLK2 with NOTCH1 similarly results in an inhibition of NOTCH signaling in preadipocytes and Mouse Embryo fibloblasts.	SIGNOR-172830
P17275	P45983	0	phosphorylation	up-regulates activity	0.719	JunB-control of IL-4 expression is mediated by the phosphorylation of JunB at Thr102 and -104 by JNK MAP kinase. The synergy between c-Maf and JunB can be attributed to cooperative DNA binding, which is facilitated by JunB phosphorylation.	SIGNOR-250120

P10586

P19174

1

dephosphorylation

down-regulates

0.2

Here we show that lar reduces the constitutive tyrosine autophosphorylation and kinase activity of ret-men2a but not ret-men2b, accompanying a significant decrease of phosphorylation of phospholipase cgamma, akt, and erk1/2.

SIGNOR-85166

O75925

Q13642

1

sumoylation

down-regulates

0.256

Pias1 (the protein inhibitor of activated stat1) interacts with kyot2 directly and attenuates kyot2-mediated transcriptional repression. We demonstrate that kyot2 is modified by sumoylation at two lysine residues, k144 and k171. Sumoylation of the transfected kyot2 is enhanced by pias1

SIGNOR-154801

P23759

Q06330

2

binding

up-regulates

0.363

Nicd regulates pax7 through interaction with rbp-j, which binds to two consensus sites upstream of the pax7 gene.

SIGNOR-196948

P06493

Q9NQS7

1

phosphorylation

up-regulates

0.759

Here, we report that cdk1 phosphorylates thr 59 and thr 388 on inner centromere protein (incenp), which regulates the localization and kinase activity of aurora-b from prophase to metaphase. The replacement of endogenous incenp with t388a resulted in the delay of progression from metaphase to anaphase.

SIGNOR-143387

P68431

Q9BYW2

0

trimethylation

up-regulates activity

0.2

Our results suggest that HYPB HMTase may coordinate histone methylation and transcriptional regulation in mammals and open perspective for the further study of the potential roles of HYPB protein in hematopoiesis and pathogenesis of HD.

SIGNOR-269071

P08670

P17612

0

phosphorylation

down-regulates activity

0.309

Ser-46 was phosphorylated preferentially by cAMP-dependent protein kinase. Both kinases reacted with Ser-6, Ser-24, Ser-38, Ser-50, and Ser-65. Domain- and sequence-specific phosphorylation of vimentin induces disassembly of the filament structure.

SIGNOR-250068

Q92585

Q06330

2

binding

up-regulates

0.875

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 hes0

SIGNOR-84919

O43603

Q03113

2

binding

up-regulates activity

0.25

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

SIGNOR-257296

O14965

Q9NRM7

1

phosphorylation

up-regulates

0.38

On the basis of these observations, we conclude that s83 of lats2 is a phosphorylation target of aurora-a and this phosphorylation plays a role of the centrosomal localization of lats2.

SIGNOR-124830

O60260

P05067

1

ubiquitination

down-regulates quantity

0.2

Similarly, in transgenic AD mice models, lentiviral parkin expression ubiquitinates Abeta to reduce its intracellular levels while preventing plaque deposition, and this is associated with induction of beclin dependent autophagy .|Thus, parkin reduces Abeta levels by enhancing both UPS- and autophagy dependent clearance of Abeta.

SIGNOR-278709

Q9UKA4

Q13576

2

binding

up-regulates activity

0.437

We show that IQGAP2 is regulated by an interaction with the A-kinase anchoring protein AKAP220. Phosphorylation of IQGAP2 via AKAP220-anchored PKA leads to enhanced Rac binding. Since AKAPs function to direct PKA toward specific substrates, we proposed that the formation of an IQGAP2/AKAP220/PKA ternary complex sharpens the response to cAMP.

SIGNOR-273740

Q9UQM7

Q13698

1

phosphorylation

up-regulates activity

0.449

To identify the regulatory sites of phosphorylation under physiologically relevant conditions, Ca(V)1.1 channels were purified from skeletal muscle and sites of phosphorylation on the α1 subunit were identified by mass spectrometry. Two phosphorylation sites were identified in the proximal C-terminal domain, serine 1575 (S1575) and threonine 1579 (T1579), which are conserved in cardiac Ca(V)1.2 channels (S1700 and T1704, respectively). In vitro phosphorylation revealed that Ca(V)1.1-S1575 is a substrate for both cAMP-dependent protein kinase and calcium/calmodulin-dependent protein kinase II, whereas Ca(V)1.1-T1579 is a substrate for casein kinase 2.

SIGNOR-263113

P06241

O15117

1

phosphorylation

up-regulates activity

0.2

two tyrosines, Tyr595 and Tyr651, of FYB are major sites of phosphorylation by FYN-T and mediate binding to SLP-76 in Jurkat T cells. We further demonstrate that the loss of SLP-76 binding by mutation of these sites markedly reduced the ability of FYN-T-FYB-SLP-76 to up-regulate IL-2 transcription.

SIGNOR-251163

P29474

P62140

0

dephosphorylation

up-regulates activity

0.2

The increase in eNOS activity coincided with specific dephosphorylation of eNOS-Thr495, known to enhance eNOS activity. Inhibition of protein phosphatase 1 (PP1) by calyculin A, tautomycetin, or siRNA against PP1 reversed NF-induced eNOS-Thr495 dephosphorylation

SIGNOR-248574

Q96GD4

P84243

1

phosphorylation

up-regulates activity

0.2

Phosphorylation at ser-11 (h3s10ph) by aurkb is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis. Phosphorylation at ser-11 (h3s10ph) by aurkb is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis.

SIGNOR-118890

Q14164

Q04206

1

phosphorylation

up-regulates

0.439

Overexpressed ikkepsilon and tbk1 phosphorylate ser-536 in vivo and in vitro.

SIGNOR-129943

P03186

P25963

1

deubiquitination

down-regulates activity

0.2

In the current study, we have found that BPLF1 interferes with innate immune activation by targeting multiple intermediates along the TLR signal transduction pathway, including TRAF6, NEMO, and IκBα. BPLF1 can remove ubiquitin tags from proteins in the TLR signaling cascade. This inhibits TLR signaling and decreases the expression of immune response genes.

SIGNOR-266744

P11229

P63096

2

binding

up-regulates activity

0.399

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-256735

Q96MG7

Q8WV22

2

binding

up-regulates activity

0.2

MAGE-G1 enhances NSE1 ubiquitin ligase activity in vitro.

SIGNOR-265489

P11362

P56945

1

phosphorylation

up-regulates

0.256

Five tyrosine phosphorylation sites were identified in p130cas on tyr-128, tyr-249, tyr-306, tyr-327, and tyr-410. These tyrosine residues are all located in the substrate domain of p130cas that mediates binding to the sh2 domain of the adaptor molecule crk. Fgf-1-transduced fibroblasts demonstrated a > 10-fold increase in migration, an observation correlated with increased tyrosine phosphorylation of p125fak and p130cas.

SIGNOR-82760

Q13131

P05091

1

phosphorylation

up-regulates activity

0.2

Further studies demonstrate that in the absence of LDLR, AMPK phosphorylates ALDH2 at threonine 356 and enables its nuclear translocation. Nuclear ALDH2 interacts with HDAC3 and represses transcription of a lysosomal proton pump protein ATP6V0E2, critical for maintaining lysosomal function, autophagy, and degradation of oxidized low-density lipid protein.

SIGNOR-271863

P28482

O00141

0

phosphorylation

up-regulates activity

0.309

SGK1 was found to physically interact with ERK1/2 as well as MEK1/2. Furthermore, SGK1 mediated the phosphorylation of ERK2 on Ser(29) in a serum-dependent manner. Replacement of Ser(29) to aspartic acid, which mimics the phosphorylation of Ser(29), enhanced the ERK2 activity as well as the MEK/ERK complexes formation.

SIGNOR-276223

Q9BX63

P27694

2

binding

up-regulates activity

0.696

Our data are consistent with a model in which FANCJ associates with RPA in a DNA damage-inducible manner and through the protein interaction RPA stimulates FANCJ helicase to better unwind duplex DNA substrates. These findings identify RPA as the first regulatory partner of FANCJ.

SIGNOR-259187

Q07869

O00327

2

transcriptional regulation

up-regulates quantity by expression

0.596

We demonstrate that PPARalpha plays a specific role in the peripheral circadian control because it is required to maintain the circadian rhythm of the master clock gene brain and muscle Arnt-like protein 1 (bmal1) in vivo. This regulation occurs via a direct binding of PPARalpha on a potential PPARalpha response element located in the bmal1 promoter. Reversely, BMAL1 is an upstream regulator of PPARalpha gene expression.

SIGNOR-268024

Q92565

P62834

1

guanine nucleotide exchange factor

up-regulates activity

0.648

We found here that cAMP-dependent activation of Epac1 and Rap1 but not PKA is able to activate CaMKI to mediate Ser47 (S47) phosphorylation in GCM1. Epac1 and Epac2 proteins were identified as cAMP-binding proteins with guanine nucleotide exchange factor (GEF) activities for the small GTPases, Rap1 and Rap2

SIGNOR-262682

P20042

P68400

0

phosphorylation

up-regulates

0.35

The n-terminal domain of the human eif2beta subunit and the ck2 phosphorylation sites are required for its function. These results suggest that ser2 and ser67 contribute to the important role of the n-terminal region of eif2beta for its function in mammals.

SIGNOR-140994

P62826

O75592

0

guanine nucleotide exchange factor

up-regulates activity

0.296

MYCBP2 Is a Nuclear GEF for Ran in DRG Neurons—Next, we studied whether or not MYCBP2 modulates the interaction between Ran/RanGAP1. MYCBP2 contains an N-terminal RCC1-like domain (Fig. 8C) (13), and RCC1 is a known GEF for Ran, indicating a potential functional interaction between MYCBP2 and Ran.

SIGNOR-261204

Q7Z5L9

P14316

2

binding

up-regulates activity

0.631

We have identified two novel proteins that interact specifically with the C-terminal repression domain of Interferon Regulatory Factor-2 (IRF-2). These proteins, which we term IRF-2 binding proteins 1 and 2 (IRF-2BP1 and IRF-2BP2, the latter having two splicing isoforms, A and B), are nuclear proteins, and have the properties of IRF-2-dependent transcriptional co-repressors that can inhibit both enhancer-activated and basal transcription in a manner that is not dependent upon histone deacetylation.

SIGNOR-224073

Q05086

P54727

1

polyubiquitination

down-regulates quantity by destabilization

0.405

Here we report the identification of HHR23A, one of the human homologues of the yeast DNA repair protein Rad23, as an E6-independent target of E6AP. E6AP-mediated ubiquitination and degradation of HHR23A and HHR23B.

SIGNOR-272551

P48736

P01112

2

binding

up-regulates

0.821

Grb2 binds and activates sos, which then activates ras, and this activates p110 independently of p85. it was also described that ras interacts with pi3k in a direct manner. lysine residue 227 is essential for the interaction of ras with pi3k we show here, however, that in vivo there are marked quantitative differences in the ability of ki- and ha-ras to activate raf-1 and phosphoinositide 3 kinase. the mechanism of raf-1 activation is complex, but it is clear that one important role of ras is to recruit raf-1 to the plasma membrane where a series of events is initiated that ultimately leads to full raf-1 activation. These events include tyrosine, serine, and threonine phosphorylation plus interactions with ras, phospholipids, 14-3-3 proteins and their associated proteins, and possibly dimerization.

SIGNOR-59816

Q99717

Q9HAU4

0

ubiquitination

down-regulates

0.736

Smurf1 and smurf2 are e3 ubiquitin ligases known to suppress tgf-beta signaling through degra-dation of smads and receptors for tgf-beta and bmps

SIGNOR-193378

P84243

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-265418

P04629

Q9BV47

0

dephosphorylation

down-regulates activity

0.371

NEAP and DUSP26 dephosphorylated TrkA and FGFR1 directly.|We found that NEAP, but not its phosphatase-defective mutant, suppressed nerve growth factor (NGF) receptor TrkA and fibroblast growth factor receptor 1 (FGFR1) activation in PC12 cells

SIGNOR-277105

Q92879

P31749

0

phosphorylation

up-regulates activity

0.41

In normal myoblasts, Akt kinase phosphorylates CUGBP1 at Ser28 and increases interactions of CUGBP1 with cyclin D1 mRNA.

SIGNOR-280173

Q07812

Q92843

2

binding

down-regulates

0.478

Bcl-w may protect largely via its ability to associate with bax because it could efficiently protect xem from tbid and bid, bad, hrk, and bmf bh3 peptides

SIGNOR-154518

Q8N1N5

Q13153

2

binding

up-regulates

0.415

We further found that cripak interacted with pak1 through the n-terminal regulatory domain and inhibited pak1 kinase in both in vitro and in vivo assays.

SIGNOR-141467

P63096

P21731

2

binding

up-regulates activity

0.25

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

SIGNOR-256744

P18848

Q96I59

1

transcriptional regulation

up-regulates quantity by expression

0.2

QRICH1 promotes the expression of translation-related genes. our combined ChIP-seq and RNA-seq analyses identified that QRICH1 and ATF4 were enriched at the promoters of these specific tRNA synthetases, and that ER stress positively regulated their transcription (Fig. 4I). Together, these findings suggest that QRICH1 and ATF4 modulate tRNA metabolic processes to promote secreted protein synthesis during ER stress.

SIGNOR-269423

P32249

P19086

2

binding

up-regulates activity

0.249

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-257110

P46777

O15350

2

binding

up-regulates

0.341

We report that rpl5 and rpl11 can also enhance the transcriptional activity of a p53 homolog tap73

SIGNOR-205517

P04049

P05771

0

phosphorylation

up-regulates

0.445

Pkc can effectively phosphorylate raf-1, this is a direct effect of activated pkc and not the result of raf-1 autophosphorylation. the sites of pkc-mediated raf-1 phosphorylation are deduced to be ser497 and ser619.

SIGNOR-37474

P23443

Q9H3D4

1

phosphorylation

down-regulates

0.2

Atm kinase is a master switch for the delta np63 alpha phosphorylation/degradation in human head and neck squamous cell carcinoma cells upon dna damage. We previously found that the pro-apoptotic dna damaging agent, cisplatin, mediated the proteasome-dependent degradation of delta np63 alpha associated with its increased phosphorylated status. We found that delta np63 alpha is phosphorylated in the time-dependent fashion at the following positions: s385, t397 and s466, which were surrounded by recognition motifs for atm, cdk2 and p70s6k kinases, respectively

SIGNOR-180771

O00141

P04150

1

phosphorylation

up-regulates activity

0.46

SGK1 also potentiated and maintained GR activation in the presence of cortisol, and even after cortisol withdrawal, by increasing GR phosphorylation and GR nuclear translocation|Having demonstrated that SGK1 mediates the cortisol-induced increase in GR phosphorylation at the S203 and S211 phospho-sites, which enhance GR nuclear translocation, but not at the S226 site, which inhibits nuclear translocation

SIGNOR-251669

Q14114

Q05519

0

post transcriptional regulation

up-regulates quantity by stabilization

0.2

We demonstrate that SFRS11 directly binds to the 3' UTR of LRP8 mRNA, as well as to the third exon of apoE mRNA, resulting in stabilization of these mRNAs, eventually deactivating JNK signaling.

SIGNOR-269670

Q9HCJ2

P78352

2

binding

up-regulates activity

0.365

A possible function for the NGL–PSD-95 interaction is to couple trans-synaptic adhesion events to the recruitment of PSD-95 and other PSD-95-associated postsynaptic proteins. PSD-95 and liprin-α may be key synaptic scaffolding proteins that couple trans-synaptic adhesions to the assembly of synaptic proteins/vesicles

SIGNOR-264050

P33991

P24941

0

phosphorylation

down-regulates activity

0.767

We reported that the dna helicase activity of the human and mouse mcm4-6-7 complex, a sub-complex of the mcm2-7 heterohexamer, is inhibited by the phosphorylation by cdk2-cyclin a we identified six sites, including ser-32, ser-53, and thr-109, in the amino-terminal region of mouse mcm4 that are required for the phosphorylation with cdk2-cyclin a.

SIGNOR-100881

O60285

P31749

0

phosphorylation

up-regulates

0.262

Ser(600) in ark5 was found to be phosphorylated by active akt resulting in the activation of kinase activity.

SIGNOR-252591

P29475

Q16566

0

phosphorylation

down-regulates activity

0.357

It was found that purified recombinant nNOS was phosphorylated by CaM-K Ialpha, CaM-K IIalpha, and CaM-K IV at Ser847 in vitro. Replacement of Ser847 with Ala (S847A) prevented phosphorylation by CaM kinases. Phosphorylated recombinant wild-type nNOS at Ser847 (approximately 0.5 mol of phosphate incorporation into nNOS) exhibited a 30% decrease of Vmax with little change of both the Km for L-arginine and Kact for CaM relative to unphosphorylated enzyme. The activity of mutant S847D was decreased to a level 50-60% as much as the wild-type enzyme. The decreased NOS enzyme activity of phosphorylated nNOS at Ser847 and mutant S847D was partially due to suppression of CaM binding, but not to impairment of dimer formation which is thought to be essential for enzyme activation.

SIGNOR-250713

P60953

O94989

0

guanine nucleotide exchange factor

up-regulates activity

0.556

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-260541

Q01105

P67775

2

binding

down-regulates

0.531

Here we report that both the amino terminal fragment (i(2ntf);aa 1-175) and the carboxy terminal fragment (i(2ctf);aa 176-277) of i(2)(pp2a) inhibit pp2a by binding to its catalytic subunit pp2ac

SIGNOR-175719

P18031

O43561

1

dephosphorylation

down-regulates activity

0.504

Using a pharmacological inhibitor, we provide evidence that PTP1B activation and LAT dephosphorylation processes were required for irreversible platelet aggregation.|In collagen-stimulated platelets, the signaling complexes recruited by tyrosine-phosphorylated LAT are essential for PLCgamma2 activation

SIGNOR-248403

Q92997

Q13467

2

binding

up-regulates activity

0.641

Upon ligand binding, DVL proteins are recruited to Frizzled receptors at the plasma membrane and co-recruit cytoplasmic transducers, such as Axin, CK1 and GSK3 binding protein (GBP), presumably along with their partners, to promote ?-catenin-dependent signalling.

SIGNOR-258963

Q9UBM7

Q15392

2

binding

up-regulates activity

0.653

DHCR7 coimmunoprecipitates DHCR24. Overexpression of functional DHCR24 increases DHCR7 activity. Because knockdown of DHCR24 has no effect on DHCR7 mRNA (Fig. 3A), this implies that this phenomenon is occurring posttranscriptionally. Thus, the interaction between the two terminal steps of cholesterol synthesis appears to have functional consequences.

SIGNOR-267249

P07288

Q9UQ80

0

transcriptional regulation

down-regulates quantity by repression

0.2

Ectopic expression of ebp1, a member of the PA2G4 family, inhibits the proliferation and induces the differentiation of human breast and prostate cancer cell lines. Ebp1 inhibits transcription of E2F1 and androgen receptor regulated genes such as prostate specific antigen (PSA) through its interactions with histone deacetylases (HDACs)

SIGNOR-253662

P16333

O00401

2

binding

up-regulates

0.78

Nck and cdc42 activate n-wasp by redundant mechanisms.

SIGNOR-107634

P45983

O14733

0

phosphorylation

up-regulates

0.699

Jnk is activated by jnk-activating kinase 1 (jnkk1), a dual specificity protein kinase that phosphorylates jnk on threonine 183 and tyrosine 185 residues.

SIGNOR-51199

P15529

P12931

0

phosphorylation

up-regulates activity

0.458

Src kinase phosphorylates CD46 at Y354 of the Cyt2 isoform in vitro.

SIGNOR-280127

P52564

O15264

1

phosphorylation

up-regulates activity

0.661

p38-δ is activated by environmental stress, extracellular stimulants, and MAPK kinase-3, -4, -6, and -7. we investigated whether this Thr180-Gly-Tyr182 motif was essential for p38-δ activation. Taken together, these results suggest that the dual phosphorylation TGY motif is required for p38-δ activation.

SIGNOR-273952

P42224

O75925

2

binding

down-regulates

0.795

Socs1 and socs3 target jak1 and gp130, respectively, near the plasma membrane to prevent cytoplasmic stats from being activated, whereas pias1 principally targets activated stat1 in the cell nucleus and prevents it from binding to dna.

SIGNOR-202039

Q13043

Q9Y243

0

phosphorylation

down-regulates

0.261

Full activation of mst1 requires an activation cleavage that is prevented by the phosphorylation of thr-387 by akt.

SIGNOR-201129

Q8N122

P54646

0

phosphorylation

down-regulates activity

0.693

These results suggest that AMPK activation can induce phosphorylation of both serine 722 and serine 792.|Raptor phosphorylation is required for inhibition of mTORC1 by AMPK

SIGNOR-163463

Q13118

P04049

0

phosphorylation

down-regulates quantity by destabilization

0.2

RAF1 phosphorylates the Thr93 site of KLF10 in vivo. Since the phosphorylation of Thr93 enables KLF10 and PIN1 to bind, it seems likely that RAF-1 will have an effect on KLF10 stability that is similar to that of PIN1.PIN1 facilitates KLF10 protein degradation. (

SIGNOR-276502

P18545

P25098

0

phosphorylation

up-regulates activity

0.2

Mutation of Thr-62 (to Ala) in PDEgamma produced a GRK2 phosphorylation-resistant mutant that was less effective in associating with GRK2 in response to epidermal growth factor and did not potentiate the stimulation of p42/p44 mitogen-activated protein kinase by this growth factor.

SIGNOR-247823

P61586

Q7Z5H3

0

gtpase-activating protein

down-regulates activity

0.564

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-260476

P14618

Q9H6Z9

0

hydroxylation

up-regulates activity

0.436

Interaction of PKM2 with prolyl hydroxylase 3 (PHD3) enhances PKM2 binding to HIF-1α and PKM2 coactivator function. Mass spectrometry and anti-hydroxyproline antibody assays demonstrate PKM2 hydroxylation on proline-403/408. PHD3 knockdown inhibits PKM2 coactivator function, reduces glucose uptake and lactate production, and increases O(2) consumption in cancer cells.

SIGNOR-267476

Q96EQ8

O95786

1

polyubiquitination

down-regulates quantity by destabilization

0.671

Here, we found that RIG-I undergoes proteasomal degradation after conjugation to ubiquitin by RNF125. Further, RNF125 conjugates ubiquitin to MDA5, a family protein of RIG-I as well as IPS-1, which is also a downstream protein of RIG-I signaling that results in suppressing the functions of these proteins. Because RNF125 is enhanced by IFN, these functions constitute a negative regulatory loop circuit for IFN production.

SIGNOR-271647

P35222

Q12913

0

dephosphorylation

up-regulates activity

0.519

Our data demonstrate that CD148 promotes E-cadherin cell adhesion by regulating Rac1 activity, concomitant with modulation of p120, \u03b2-catenin, and Src tyrosine phosphorylation, and that this effect requires E-cadherin and p120 association.|Taken together, it is likely that CD148 dephosphorylation of \u03b2-catenin enhances the cadherin cell adhesion independent of Rho family GTPases.

SIGNOR-276992

P18206

P12931

0

phosphorylation

down-regulates activity

0.76

The phosphorylation of vinculin on tyrosine residues 100 and 1065, mediated by SRC kinases, affects cell spreadingWhen phosphorylated, the vinculin tail exhibited significantly less binding to the vinculin head domain than the unphosphorylated tail.

SIGNOR-247424

O60469

P40763

2

binding

up-regulates activity

0.2

Our findings now further suggest that STAT3 and the adaptor protein SH2D2A interact with tyrosine‐containing motifs within the DSCAM/L1 ICDs. The SH2 domains of both STAT3 and SH2D2A are known to bind to phosphorylated tyrosine residues in the context of such motifs. Thus, the interactions between DSCAMs and SH2‐domain containing proteins seem to play a central and conserved role in Dscam signaling in the context of dynamic changes of tyrosine‐phosphorylation levels.

SIGNOR-264277

P10827

P10826

2

binding

up-regulates

0.416

Ee report that the retinoic acid receptors (rars), a distinct class of nuclear receptors, are also efficient heterodimer partners for trs

SIGNOR-133243

Q9NT62

Q9GZQ8

2

binding

up-regulates

0.835

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-191549

P12931

Q13177

1

phosphorylation

up-regulates

0.562

Pak2 became tyrosine phosphorylated in its n-terminal regulatory domain, where y130 was identified as the major phosphoacceptor site. Tyrosine phosphorylation-mediated superactivation of pak2 could be induced by overexpression of different src kinases or by inhibiting cellular tyrosine phosphatases with pervanadate and could be blocked by the src kinase inhibitor pp1 or by mutating the y130 residue.

SIGNOR-92460

Q9HC98

Q8TD19

0

phosphorylation

up-regulates activity

0.69

Nercc1/nek9 activates the nek6 and nek7 kinases. Nercc1 catalyzes the direct phosphorylation of prokaryotic recombinant nek6 at ser206 in vitro concomitant with 20-25-fold activation of nek6 activity.

SIGNOR-102996

P12931

P57737

1

phosphorylation

up-regulates activity

0.339

We establish that Src activity is indispensable for the interaction of Crn7 with Golgi membranes. Crn7 binds Src in vivo and can be phosphorylated by recombinant Src in vitro. We demonstrate that tyrosine-758 is the major Src phosphorylation site.

SIGNOR-274005

P29279

O75581

2

binding

up-regulates

0.2

Igfbp-4 physically interacted with a wnt receptor, frizzled 8 (frz8), and a wnt co-receptor, low-density lipoprotein receptor-related protein 6 (lrp6), and inhibited the binding of wnt3a to frz8 and lrp6.

SIGNOR-178875

P17252

Q86UX7

1

phosphorylation

up-regulates activity

0.2

PKC-induced phosphorylation events, as we have shown kindlin-3 to be a PKC phosphorylation target (Fig. 6C), are often followed by rapid activation of phosphatases (38).

SIGNOR-266415

Q9NP70

Q8IXL6

0

phosphorylation

up-regulates activity

0.664

Disruption of Fam20C completely eliminated AMBN phosphorylation, suggesting that Fam20C is the kinase that phosphorylates enamel matrix proteins in vivo (XREF_FIG).

SIGNOR-280010

Q86UR5

O15034

2

binding

down-regulates activity

0.501

SH3 domains of RBPs interact with RIMs. The enhancement of depolarization-induced secretion in PC12 cells by fusion proteins that suppress the associations of RBPs with RIMs and α1 suggests that RBPs may repress RIMs, either directly or through associated proteins.

SIGNOR-264361

P29590

O95405

2

binding

up-regulates

0.574

Cytoplasmic pml physically interacts with smad2/3 and sara (smad anchor for receptor activation) and is required for association of smad2/3 with sara and for the accumulation of sara and tgf-beta receptor in the early endosome.

SIGNOR-128744

Q15910

Q16539

0

phosphorylation

down-regulates quantity by destabilization

0.372

Here, we show that p38α kinase promotes EZH2 degradation in differentiating muscle cells through phosphorylation of threonine 372

SIGNOR-255663

Q96BR1

O43524

1

phosphorylation

down-regulates activity

0.435

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

SIGNOR-249135

P18031

Q05397

1

dephosphorylation

down-regulates activity

0.346

The focal adhesion kinase (FAK) is a key regulator of cell migration. Phosphorylation at Tyr-397 activates FAK |The dephosphorylation at Tyr-397 in FAK triggered by wild-type alpha-actinin and PTP 1B caused a significant increase in cell migration.

SIGNOR-248431

Q15329

P45973

1

transcriptional regulation

down-regulates quantity by repression

0.2

We identified for E2F5 a repressor function for HP1a expression.

SIGNOR-261591

P61020

Q5S007

0

phosphorylation

up-regulates activity

0.599

Using recombinant proteins, we show here that LRRK2 phosphorylates Rab5b at its Thr6 residue in in vitro kinase assays with mass spectrophotometry analysis. Phosphorylation of Rab5b by LRRK2 on the threonine residue was confirmed by western analysis using cells stably expressing LRRK2 G2019S. The phosphomimetic T6D mutant exhibited stronger GTPase activity than that of the wild-type Rab5b. In addition, phosphorylation of Rab5b by LRRK2 also exhibited GTPase activity stronger than that of the unphosphorylated Rab5b protein.

SIGNOR-276873

O15379

Q13547

2

binding

up-regulates

0.533

Furthermore, smad7 caused hdac-1 bind to e2f-1 to form a ternary complex on chromosomal dna containing an e2f-binding motif and leading to repression in the activity of the e2f target genes.

SIGNOR-199964

Q13255

P63092

2

binding

up-regulates activity

0.407

MGluRs are members of the G-protein-coupled receptor (GPCR) superfamily, the most abundant receptor gene family in the human genome. GPCRs are membrane-bound proteins that are activated by extracellular ligands such as light, peptides, and neurotransmitters, and transduce intracellular signals via interactions with G proteins. The resulting change in conformation of the GPCR induced by ligand binding activates the G protein, which is composed of a heterotrimeric complex of α, β, and γ subunits.

SIGNOR-264077

P42224

P33076

1

transcriptional regulation

up-regulates

0.539

When IFN-γ binds to its receptor, the receptor-associated protein tyrosine kinases Janus kinase I (JAK1) and JAK2 are activated (37). This leads to the phosphorylation of STAT1, which then dimerizes, translocates to the nucleus, and activates its target promoters, including the pIV promoter of Ciita

SIGNOR-256249

P12931

P40763

1

phosphorylation

up-regulates activity

0.789

In the present study, we have delineated the mechanism by which Galpha16 stimulates STAT3 in human embryonic kidney 293 cells. A constitutively active Galpha16 mutant, Galpha16QL, stimulated STAT3-dependent luciferase activity as well as the phosphorylation of STAT3 at both Tyr705 and Ser727.The involvement of tyrosine kinases such as c-Src and Janus kinase 2 and 3 (JAK2 and JAK3) in Galpha16QL-induced activation of STAT3 was illustrated by the combined use of selective inhibitors and dominant negative mutants.

SIGNOR-247341

P17612

P05114

1

phosphorylation

down-regulates activity

0.307

PKA preferentially phosphorylates serine 6 in human HMGN1. specific phosphorylation of the NBD of HMGN proteins serves to prevent the interaction of these proteins with their chromatin targets during mitosis.

SIGNOR-249993

O60216

Q9Y6M0

0

cleavage

up-regulates

0.2

Rad21 is a component of the cohesin complex that holds sister chromatids together during mitosis and repairs double-strand dna breaks. Interestingly, rad21 is cleaved by a caspase-like esp1/separase at the onset of anaphase to trigger sister chromatid separation.

SIGNOR-115426

P63096

P09619

0

phosphorylation

up-regulates activity

0.2

RTKs directly phosphorylate Gαi on Y154, 155, and Y320.

SIGNOR-277232

P17612

Q9NRM7

1

phosphorylation

up-regulates

0.2

Here, we show that cyclic amp (camp)-dependent protein kinase (pka) phosphorylates lats and thereby enhances its activity sufficiently to phosphorylate yap on ser381.

SIGNOR-236994

P62993

P35568

2

binding

up-regulates activity

0.803

Association ofinsulinreceptor substrate 1 (irs-1) y895 with grb-2 mediates theinsulinsignaling involved in irs-1-deficient brown adipocyte mitogenesis.

SIGNOR-236614

Q00987

O15350

2

binding

down-regulates activity

0.837

Since HDM2, a key negative regulator of p53, also binds to and inhibits p73, we asked whether p73 could mediate Nutlin-3-induced apoptosis.

SIGNOR-255470

Q9Y6E2

Q14152

2

binding

up-regulates activity

0.324

BZW2, as an evolutionary highly conserved protein, interacts with eIF2 and eIF3 and promotes ternary complex formation in vitro

SIGNOR-261221

P31749

P56279

2

binding

up-regulates

0.825

Full-length tcl1 and its isoforms bind to akt / in in vitro kinase assays using gsk-3_ as a substrate, we found that the presence of any of the tcl1 family proteins (tcl1, mtcp1, or tcl1b) as gst fusion proteins significantly enhanced akt-induced gsk-3_ phosphorylation

SIGNOR-81680

Q9NX76

Q9NZQ7

1

stabilization

up-regulates quantity by stabilization

0.47

Furthermore, the observations that (i) CMTM6 affects PD-L1 protein stability at late time points after biosynthesis; (ii) CMTM6, CMTM4 and PD-L1 interact, as shown by co-immunoprecipitation; and that (iii) CMTM6 is largely located at the cell surface, collectively suggest a model in which CMTM6 interacts with PD-L1 at the tumour cell surface and thereby protects it from degradation

SIGNOR-274980

P07333

P16885

1

null

up-regulates

0.369

Studies with multipotent precursor cell lines (Fig. 4A) indicate that CSF-1R Tyr-807 and Tyr-721 promote macrophage differentiation via the PLC-Œ≥2 pathway

SIGNOR-255570

P80370

P46531

2

binding

down-regulates activity

0.518

Moreover, the interaction of DLK1 with NOTCH1 caused an inhibition of basal NOTCH signaling in preadipocytes and mesenchymal multipotent cells. In this work, we demonstrate, for the first time, that DLK2 interacts with itself, with DLK1, and with the same NOTCH1 receptor region as DLK1 does. We demonstrate also that the interaction of DLK2 with NOTCH1 similarly results in an inhibition of NOTCH signaling in preadipocytes and Mouse Embryo fibloblasts.

SIGNOR-172830

P17275

P45983

0

phosphorylation

up-regulates activity

0.719

JunB-control of IL-4 expression is mediated by the phosphorylation of JunB at Thr102 and -104 by JNK MAP kinase. The synergy between c-Maf and JunB can be attributed to cooperative DNA binding, which is facilitated by JunB phosphorylation.

SIGNOR-250120