GleghornLab/Signor_2class · Datasets at Hugging Face

IdA string	IdB string	labels int64	mechanism string	effect string	score float64	sentence string	signor_id string
P05412	Q14164	0	phosphorylation	up-regulates activity	0.316	Indeed, using an in vitro kinase assay, we demonstrated that both JNK and IKKepsilon phosphorylated c-Jun (XREF_FIG and XREF_SUPPLEMENTARY).	SIGNOR-279621
P11309	P08183	1	dephosphorylation	up-regulates activity	0.438	Protein phosphatase complex PP5/PPP2R3C dephosphorylates P-glycoprotein/ABCB1 and down-regulates the expression and function\|P-gp is known to be phosphorylated at Ser667, Ser671, and Ser683 by PKA; at Ser661, Ser667, and Ser671 by PKC; and at Ser683 by Pim-1\|simultaneous expression of PP5 and PPP2R3C reduced the phosphorylation detected by the antibodies that specifically recognize serine/threonine phosphorylated by PKA or serine phosphorylated by PKC. These results suggest that the PP5/PPP2R3C complex dephosphorylates PKA- and PKC-phosphorylated serine residues on P-gp	SIGNOR-272511
Q15796	Q9UQM7	0	phosphorylation	down-regulates	0.549	Smad2 is a target substrate for cam kinase ii in vitro at serine-110, -240, and -260. furthermore, cam kinase ii blocked nuclear accumulation of a smad2 and induced smad2-smad4 hetero-oligomerization independently of tgfbeta receptor activation, while preventing tgfbeta-dependent smad2-smad3 interactions.	SIGNOR-82970
Q13283	P68400	0	phosphorylation	down-regulates activity	0.239	We also show that casein kinase 2 phosphorylates G3BP1 at serine 149 in vitro and in cells. These data support a role for casein kinase 2 in regulation of protein synthesis by downregulating stress granule formation through G3BP1.CK2 regulates SG disassembly during stress recovery.G3BP1 is among the strongest SG nucleating proteins, and previous work indicated that G3BP1 phosphorylation at S149 restricts stress granule assembly by partly inhibiting G3BP1 oligomerization	SIGNOR-260748
Q14493	Q5QNW6	1	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-265394
Q15121	P31749	0	phosphorylation	up-regulates activity	0.517	Protein kinase b/akt binds and phosphorylates ped/pea-15, stabilizing its antiapoptotic action.	SIGNOR-102092
P49768	P45984	0	phosphorylation	up-regulates	0.376	This jnk phosphorylation of ps1 at ser(319)thr(320) enhances the stability of the ps1 c-terminal fragment that is necessary for gamma-secretase activity.	SIGNOR-179676
P45983	P40763	1	phosphorylation	up-regulates activity	0.567	Transfection of the cells with sirna specific for jnk1 revealed that jnk silencing reduced serine727 phosphorylation of stat3,	SIGNOR-235704
Q16659	O60229	1	phosphorylation	up-regulates activity	0.406	The brain-specific nucleotide exchange factor kalirin-7 (Kal7) was identified as an MK5 interaction partner and substrate protein. The MK5 substrate Kal7, a Rho GEF and known activator of Rac GTPases, further contributes to PAK activation and actin filament reorganization. Thus, the coordinated phosphorylation of Borg proteins and Kal7 by ERK3 and MK5 constitute a novel signaling cascade involving feed-forward circuits, multiple GTPases, and cytoskeletal elements.	SIGNOR-263094
P07948	Q14790	1	phosphorylation	down-regulates activity	0.311	The non-receptor tyrosine kinase, Lyn, can phosphorylate caspase-8 on Tyr-397 and Tyr-465, rendering it resistant to activational cleavage and inhibiting apoptosis.	SIGNOR-272980
Q6NYC1	Q7L2J0	1	cleavage	down-regulates activity	0.268	JMJD6 cleaves MePCE. we propose that JMJD6 is the cognate protease of MePCE and cleaves at the R171 site within MePCE. Experiments using purified JMJD6 showed that it could make a cut in an enzyme called MePCE, which belongs to the group of proteins that hold P-TEFb in its inactive form. The levels of activated Pol II were lower in cells without JMJD6 and higher in those without MePCE. Together, the results suggest that JMJD6 cuts MePCE to release P-TEFb, which then activates Pol II.	SIGNOR-261037
Q14493	Q6DN03	1	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-265382
Q16827	P12931	1	dephosphorylation	down-regulates activity	0.422	SRC activation triggered by loss of PTPRO leads to c-CBL degradation.\|These data corroborate that PTPRO directly dephosphorylates SRC at Y416.	SIGNOR-277004
P17252	Q9UKF7	1	phosphorylation	up-regulates activity	0.319	Only BIM-I caused a reduction in 14-3-3 binding (Figure 3B), suggesting that PKC could be responsible for one or both of the serine phosphorylations, pSer274 and pSer299.	SIGNOR-273801
P68431	Q9UPS6	0	methylation	down-regulates activity	0.2	SETD1B encodes a lysine-specific methyltransferase that assists in transcriptional activation of genes by depositing H3K4 methyl marks.	SIGNOR-265576
O14965	P04637	1	phosphorylation	up-regulates activity	0.778	The N-terminus of E2F1 can interact directly with a region towards the C-terminus of p53, resulting in increased nuclear retention of p53 and p53-mediated transcription and apoptosis. This is inhibited by competition between p53 and cyclin A at the binding site within E2F19,10. The interaction between p53 and E2F1 is enhanced by phosphorylation of p53 on Ser315, a residue within the E2F1 binding region that is phosphorylated by cell cycle kinases such as cdk1, cdk2, cdk9 and Aurora kinase A	SIGNOR-120836
P25490	Q13547	0	deacetylation	down-regulates activity	0.798	Previous studies have established that YY1 interacts with histone acetyltransferases p300 and CREB-binding protein (CBP) and histone deacetylase 1 (HDAC1), HDAC2, and HDAC3. Here, we present evidence that the activity of YY1 is regulated through acetylation by p300 and PCAF and through deacetylation by HDACs. YY1 was acetylated in two regions: both p300 and PCAF acetylated the central glycine-lysine-rich domain of residues 170 to 200, and PCAF also acetylated YY1 at the C-terminal DNA-binding zinc finger domain. Acetylation of the central region was required for the full transcriptional repressor activity of YY1 and targeted YY1 for active deacetylation by HDACs.	SIGNOR-268835
Q9BXS6	P06493	0	phosphorylation	down-regulates	0.431	We report here that cdk1 phosphorylates nusap at threonine 300 and 338 in early mitosis. Phosphorylation of nusap inhibits its microtubule-binding activity in vitro and in vivo.	SIGNOR-177549
P50281	P02679	1	cleavage	down-regulates quantity by destabilization	0.2	Matrix metalloproteinases collagenase-2, macrophage elastase, collagenase-3, and membrane type 1-matrix metalloproteinase impair clotting by degradation of fibrinogen and factor XII\| We have now investigated the role of collagenase-2 (MMP-8), macrophage elastase (MMP-12), collagenase-3 (MMP-13), and membrane type 1-matrix metalloproteinase (MT1-MMP, MMP-14) in the degradation of fibrinogen and Factor XII of the plasma clotting system.\|MMP-14 27YVATRDN g-chain\| 105XDAATLKSR g-chain \| 92LTYNPDES g-chain \|105LTTNIXEXL a-chain\|433LVTSKGDKE a-chain\| 117FXSANNRD a-chain	SIGNOR-263616
Q16539	O75676	1	phosphorylation	up-regulates	0.604	Rskb, a 90-kda ribosomal s6 protein kinase family (rsk) member with two complete catalytic domains connected by a linker, is activated through p38- and erk-mitogen-activated protein kinases. unlike other rsks, the activation loop phosphorylation sites of both catalytic domains of rskb, ser(196) and thr(568), were required for activity. Rskb activation depended on phosphorylation of linker ser(343) and ser(360) and associated with phosphorylation of nonconserved ser(347), but ser(347)-deficient rskb retained partial activity.	SIGNOR-77212
Q9NXA8	P07195	1	deacetylation	up-regulates activity	0.2	In colorectal cancer, SIRT5 binds to lactate dehydrogenase B (LDHB) to deacetylate it at Lysine 329, thereby increasing its enzymatic activity.	SIGNOR-267645
O15294	P06737	1	glycosylation	up-regulates activity	0.2	O-GlcNAcylation at Ser-430 promotes PYGL activity	SIGNOR-267988
P68400	Q9Y5B0	1	phosphorylation	down-regulates activity	0.373	We found that only phosphorylated FCP1 can physically interact with TFIIF. We set out to purify an FCP1 kinase from HeLa cells and identified casein kinase 2, which, surprisingly, displayed a negative effect on FCP1-associated activities.\| Phosphorylation of FCP1 by CK2 Inhibits the Transcription Elongation Activity of FCP1. \| Two in vivo phosphorylation sites within the C terminus of FCP1 at Ser-575 and Ser-740 were identified	SIGNOR-250844
P56645	P48730	0	phosphorylation	down-regulates quantity by destabilization	0.719	We show here that mPer proteins, negative limbs of the autoregulatory loop, are specific substrates for CKIepsilon and CKIdelta. The CKI phosphorylation of mPer1 and mPer3 proteins results in their rapid degradation, which is dependent on the ubiquitin-proteasome pathway.	SIGNOR-267998
Q9UK80	Q16539	0	phosphorylation	up-regulates activity	0.253	In this study, we found that USP21 is an important deubiquitinating enzyme for STING and that it negatively regulates the DNA virus-induced production of type I interferons by hydrolyzing K27/63-linked polyubiquitin chain on STING. HSV-1 infection recruited USP21 to STING at late stage by p38-mediated phosphorylation of USP21 at Ser538. I	SIGNOR-273670
P31749	Q9BXL7	1	phosphorylation	up-regulates activity	0.522	Akt phosphorylates S637 and S645 in the linker region of Carma1	SIGNOR-276621
Q02880	P48730	0	phosphorylation	down-regulates quantity by destabilization	0.2	Specifically, DNA damage signal, triggered by teniposide (VM-26) treatment, activates ATM, cooperating with CK1 to phosphorylate TOP2β on Ser1134 and Ser1130, respectively, in a canonical degron motif to facilitate β-TrCP binding and subsequent degradation.CK1 binds with and phosphorylates TOP2β at Ser1130 to promote its degradation by VM-26.	SIGNOR-277509
Q00653	Q99558	0	phosphorylation	up-regulates activity	0.677	NIK-induced p100 processing requires phosphorylation of p100 at serines 866 and 870	SIGNOR-105553
P50552	Q15418	0	phosphorylation	down-regulates	0.45	Rsk1 phosphorylated vasp on t278, a site regulating its binding to actin.	SIGNOR-172899
P06493	P17096	1	phosphorylation	down-regulates	0.384	Here, we found that hipk2 phosphorylates hmga1a at ser-35, thr-52, and thr-77, and hmga1b at thr-41 and thr-66. In addition, we demonstrated that cdc2, which is known to phosphorylate hmga1 proteins, could induce the phosphorylation of hmga1 proteins at the same ser/thr sites. we found that the hipk2-phosphorylated hmga1a reduced the binding affinity of hmga1a to human germ line promoter, and the drop in binding affinity induced by hipk2 phosphorylation was lower than that introduced by cdc2 phosphorylation.	SIGNOR-158604
P12830	P68400	0	phosphorylation	up-regulates activity	0.401	Casein kinase II phosphorylation of E-cadherin increases E-cadherin/beta-catenin interaction and strengthens cell-cell adhesion. \| Under these conditions, phosphorylation of the E-cadherin double mutant S853A/S855A was reduced by 25% as compared with wt E-cadherin. \| Expression of the E-cadherin double mutant S853A/S855A in NIH3T3 cells expressing Wnt-1 reduces cell-cell adhesion.	SIGNOR-250840
P16157	O00533	0	relocalization	up-regulates quantity	0.532	Neurofascin, L1, NrCAM, NgCAM, and neuroglian are membrane-spanning cell adhesion molecules with conserved cytoplasmic domains that are believed to play important roles in development of the nervous system. This report presents biochemical evidence that the cytoplasmic domains of these molecules associate directly with ankyrins, a family of spectrin-binding proteins located on the cytoplasmic surface of specialized plasma membrane domains.	SIGNOR-266724
Q13507	P17252	0	phosphorylation	down-regulates	0.348	There are two known phosphorylation-mediated inactivation mechanisms for trpc3 channels. Protein kinase g (pkg) inactivates trpc3 by direct phosphorylation on thr-11 and ser-263 of the trpc3 proteins, and protein kinase c (pkc) inactivates trpc3 by phosphorylation on ser-712.	SIGNOR-130269
O14974	Q13418	0	phosphorylation	down-regulates activity	0.584	MYPT1 was phosphorylated by ILK and phosphorylation sites in the N- and C-terminal fragments of MYPT1 were detected. From sequence analyses, three sites were identified: a primary site at Thr(709), and two other sites at Thr(695) and Thr(495). ILK produced an intermediate level of inhibition	SIGNOR-262884
P23467	P06213	1	dephosphorylation	down-regulates	0.344	Identification of tyrosine phosphatases that dephosphorylate the insulin receptor.	SIGNOR-75997
Q99816	O60291	0	monoubiquitination	up-regulates activity	0.492	In the present study, we identified the first substrate of the Mahogunin E3 ubiquitin–protein ligase: TSG101, a key component of the endosomal sorting ESCRT machinery.We find that Mahogunin interacts with the ubiquitin E2 variant (UEV) domain of TSG101 via its PSAP motif and that it catalyzes monoubiquitylation of TSG101 both in vivo and in vitro. Consistent with the results of the biochemical characterization and subcellular localization studies of Mahogunin, our functional studies provide direct evidence that Mahogunin plays an essential role in regulation of endosome-to-lysosome trafficking. We found that siRNA-mediated depletion of Mahogunin in HeLa cells causes enlargement and clustering of EEA1-positive endosomes and LAMP2-positive late endosomes/lysosomes (Figure 8B) and inhibits the endosomal trafficking of internalized EGF–EGFR complexes to lysosomes for degradation (Figures 9 and and10,10, A and B). These results are strikingly similar to the phenotypes that resulted from depletion of TSG101	SIGNOR-271635
Q5VTB9	O75182	1	polyubiquitination	down-regulates quantity by destabilization	0.429	Here we identify RNF220 (RING finger protein 220) as a novel ubiquitin ligase for Sin3B. RNF220 specifically interacts with Sin3B both in vitro and in vivo. Sin3B can be regulated by the ubiquitin-proteasome system. Co-expression of RNF220 promotes the ubiquitination and proteasomal degradation of Sin3B.	SIGNOR-271943
P31749	P36776	1	phosphorylation	up-regulates activity	0.253	In mitochondria, LonP1 is phosphorylated by Akt on Ser173 and Ser181, enhancing its protease activity.	SIGNOR-265724
Q05513	P10636-2	1	phosphorylation	down-regulates activity	0.268	We have studied the relationship between the phosphorylation oftau by several kinases (MARK, PKA, MAPK, GSK3) and its assembly into PHFs. By contrast, MARK and PKA phosphorylate several sites within the repeats (notably theKXGS motifs including Ser262, Ser324, and Ser356, plus Ser320); in addition PKA phosphorylates somesites in the flanking domains, notably Ser214. This type of phosphorylation strongly reduces tau’s affinityfor microtubules, and at the same time inhibits tau’s assembly into PHFs.	SIGNOR-275447
O15350	P53350	0	phosphorylation	down-regulates	0.51	P73-mediated transcriptional activity is negatively regulated by polo-like kinase 1. tap73 is phosphorylated by this kinase on threonine-27 (thr-27) within the ta domain.	SIGNOR-178253
P16220	Q9Y243	0	phosphorylation	up-regulates	0.496	When overexpressed in serum-stimulated cells, akt/pkb potently induced ser-133 phosphorylation of creb and promoted recruitment of cbp.	SIGNOR-62257
Q16512	P06493	0	phosphorylation	up-regulates activity	0.436	CDK1 phosphorylates PKN1 at S533, S537, S562, and S916 in vitro and in cells during drug-induced mitotic arrest. Immunofluorescence staining further confirmed that PKN1 phosphorylation occurs during normal mitosis in a CDK1-dependent manner.Knockdown of PKN1 significantly inhibited anchorage-independent growth and migration without affecting proliferation in multiple cancer cell lines.	SIGNOR-276831
O14920	Q15672	1	phosphorylation	down-regulates activity	0.332	Hence, our current study supports the pivotal role of beta-TRCP in IKKbeta mediated Twist degradation.\|More importantly, IKK\u03b2-dependent phosphorylation of Twist at T125 and S127 governs its nuclear localization.	SIGNOR-278404
P24928	Q8IXW5	0	dephosphorylation	up-regulates activity	0.738	In addition, we show that RPAP2 is a CTD Ser5 phosphatase. Taken together, our results indicate that during transcription of snRNA genes, Ser7 phosphorylation facilitates recruitment of RPAP2, which in turn both recruits Integrator and dephosphorylates Ser5.\|The Pol II CTD is first phosphorylated on Ser5 and then on Ser7 by CDK7. RPAP2 associates with the Pol II CTD after Ser7 phosphorylation and tethers a subcomplex of Integrator to snRNA genes. RPAP2 dephosphorylates Ser5P of the CTD, facilitating transcription and the subsequent recruitment of the Int11 catalytic subunit of Integrator	SIGNOR-248748
Q9BWU1	P46531	1	phosphorylation	down-regulates quantity by destabilization	0.302	Mapping of cyclin C-dependent phosphosites on ICN1, using mass spectrometry revealed that several of them are located within the PEST-domain of Notch1, which controls ICN1 degradation38,39 (Fig. 5g and Supplementary Table 1). Three of them (T2512, S2514 and S2517) are localized within the consensus motif, “Cdc4 phosphodegron”, which is shared by most substrates of Fbw7 (Cdc4) ubiquitin ligase38. Two of these residues (S2514 and S2517) were previously shown by Fryer et al.20 to be phosphorylated by cyclin C-CDK8 in vitro, and all three were shown to play a role in controlling ICN1 stability via Fbw740. We verified that cyclin C-CDK8, C-CDK19 and C-CDK3 phosphorylate ICN1 on these three residues	SIGNOR-273135
Q9Y4K4	P49841	1	phosphorylation	down-regulates	0.2	Gckr can phosphorylate an n-terminal recombinant fusion protein of gsk3_ and enhance the in vivo phosphorylation of gsk3_ on serine 9reduction of gckr expression inhibits wnt3a-induced phosphorylation of gsk3_ at serine 9 and decreases the accumulation of cytosolic _-catenin.	SIGNOR-148908
Q9UHC7	P11940	1	ubiquitination	up-regulates activity	0.35	We show that MKRN1 directly binds to the cytoplasmic poly(A)-binding protein (PABPC1) and associates with polysomes. MKRN1 is positioned upstream of poly(A) tails in mRNAs in a PABPC1-dependent manner. Ubiquitin remnant profiling and in vitro ubiquitylation assays uncover PABPC1 and ribosomal protein RPS10 as direct ubiquitylation substrates of MKRN1.Our data show that MKRN1 associates with polysomes and ubiquitylates RPS10, indicating a role in translational control. We hypothesize that ribosomes encountering the MKRN1-PABPC1 complex are stalled, possibly via ubiquitylation of RPS10 on K107 and other MKRN1 substrates.	SIGNOR-272215
Q9HAW8	Q99626	0	transcriptional regulation	up-regulates quantity by expression	0.257	Using gel shift and functional assays, HNF1alpha was demonstrated to bind to and activate the UGT1A8, -1A9, and -1A10 promoters. In contrast, Cdx2 bound to and activated the UGT1A8 and -1A10 promoters but could not activate the UGT1A9 promoter.	SIGNOR-253968
Q12800	P24941	0	phosphorylation	down-regulates	0.2	In vitro, lsf is phosphorylated by cyclin e/cyclin-dependent kinase 2 (cdk2), cyclin c/cdk2, and cyclin c/cdk3, predominantly on s309. Phosphorylation by cyclin c/cyclin-dependent kinase 2 following mitogenic stimulation of murine fibroblasts inhibits transcriptional activity of lsf during g1 progression	SIGNOR-184160
P68400	P20042	1	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
P12931	P46940	1	phosphorylation	up-regulates activity	0.695	IQGAP1 was phosphorylated exclusively on Tyr-1510 under conditions with enhanced MET or c-Src signaling, including in human lung cancer cell lines. This phosphorylation was significantly reduced by chemical inhibitors of MET or c-Src or by siRNA-mediated knockdown of MET.	SIGNOR-277533
Q86YS7	P31751	0	phosphorylation	up-regulates activity	0.513	MS analysis of an HA-CDP138 sample from the in vitro kinase assay revealed that active Akt2 induces CDP138 phosphorylation at serine (Ser)197, which lies within a consensus Akt substrate motif RQRLIS 197 ( xref ).	SIGNOR-279585
P50750	Q15596	1	phosphorylation	up-regulates activity	0.246	Interestingly, GRIP1 is phosphorylated at an N-terminal serine cluster by cyclin-dependent kinase-9 (CDK9), which is recruited into GC-induced GR:GRIP1:CDK9 hetero-complexes, producing distinct GRE-specific GRIP1 phospho-isoforms. Phosphorylation potentiates GRIP1 coactivator but, remarkably, not its corepressor properties.	SIGNOR-256098
O15054	Q99814	0	transcriptional regulation	up-regulates quantity by expression	0.2	To this end, we confirm that KDM3A, KDM4B, KDM4C, KDM5B, KDM5C, and KDM62 are direct targets of HIF-1a while extent the list of known targets to KDM2A, KDM2B, KDM4D, KDM5A, and KDM6A. The results demonstrated that majority of the KDMs were similarly induced (KDM2A, KDM2B, KDM3A, KDM4B, KDM4C, KDM4D, KDM5A, KDM5B, KDM5C, KDM6B, and KDM7A) or repressed (KDM NO66 and KDM1A) by both HIF-1a and HIF-2a.	SIGNOR-271586
Q8NEV1	Q92915	1	phosphorylation	up-regulates activity	0.269	Bioluminescence-based screening of small molecule modulators of the FGF14:Nav1.6 complex identified 4,5,6,7 -: tetrabromobenzotriazole (TBB), a potent casein kinase 2 (CK2) inhibitor, as a strong suppressor of FGF14:Nav1.6 interaction. Inhibition of CK2 through TBB reduces the interaction of FGF14 with Nav1.6 and Nav1.2 channels. Mass spectrometry confirmed direct phosphorylation of FGF14 by CK2 at S228 and S230, and mutation to alanine at these sites modified FGF14 modulation of Nav1.6-mediated currents.	SIGNOR-275743
Q14774	P49918	1	transcriptional regulation	up-regulates quantity by expression	0.2	In this study, we have identified cell cycle regulatory genes as downstream targets of the homeobox gene HLX in cultured trophoblast cells, namely RB1, MYC, EGR1, CDKN1C, ELK1, CCNB1, and JUN. RB1 and MYC mRNA expression was increased with HLX inactivation, whereas EGR1, CDKN1C, ELK1, CCNB1, and JUN mRNA expression was decreased compared with mock-transfected control cells.	SIGNOR-261620
P29597	P17181	1	phosphorylation	up-regulates activity	0.91	We demonstrate that, in vitro, p135tyk2 phosphorylates two tyrosines on IFNaR1. A phosphopeptide corresponding to the major phosphorylation site (Tyr466) binds STAT2, but not STAT1, in an SH-2-dependent manner. Furthermore, only latent, non-phosphorylated STAT2 interacts with this phosphopeptide. When this phosphopeptide is introduced into permeabilized cells, the IFN alpha-dependent tyrosine phosphorylation of both STATs is blocked. Finally, mutant versions of IFNaR1, in which Tyr466 is changed to phenylalanine, can act in a dominant negative manner to inhibit phosphorylation of STAT2.	SIGNOR-246934
P13569	Q9P0N8	0	ubiquitination	down-regulates quantity by destabilization	0.2	A catalytically dead MARCH2 RING mutant was unable to promote CFTR degradation.\|In vivo ubiquitination assays demonstrated the ubiquitination of CFTR by MARCH2, and overexpression of MARCH2, like that of CAL and STX6, led to a dose dependent degradation of mature CFTR that was blocked by bafilomycin A1 treatment.	SIGNOR-278584
Q14980	P06493	0	phosphorylation	down-regulates	0.587	Cdk1-mediated phosphorylation at t2055 negatively regulates numa cortical localization and that this phosphorylation is counteracted by ppp2ca phosphatase activity.	SIGNOR-194825
P00748	P45452	0	cleavage	down-regulates quantity by destabilization	0.313	The data presented in this study show for the first time the degradation of Factor XII of the blood clotting system by matrix metalloproteinases. MMP-12, MMP-13, and MMP-14 cleave at Gly376Leu377\|However, no activity of Factor XII can be observed after MMPinduced cleavage.	SIGNOR-263609
P00533	Q9UKV8	1	phosphorylation	up-regulates activity	0.534	Furthermore, AGO2 function is directly modulated by EGFR signaling in ERalpha negative breast cancer under states of hypoxic stress.\|Here, EGFR can directly bind and phosphorylate residue Y393 of AGO2[ xref ].	SIGNOR-278931
O15530	O00141	1	phosphorylation	up-regulates activity	0.65	PDK1 activates SGK in vitro by phosphorylating Thr256.	SIGNOR-250275
P12931	Q8WUM4	1	phosphorylation	down-regulates activity	0.393	Src phosphorylation of Alix/AIP1 modulates its interaction with binding partners and antagonizes its activities. Phosphorylation of Alix by Src caused it to translocate from the membrane and cytoskeleton to the cytoplasm and reduced its interaction with binding partners SETA/CIN85, epidermal growth factor receptor, and Pyk2.	SIGNOR-263201
P16298	Q6VAB6	1	dephosphorylation	up-regulates activity	0.259	These findings indicate that calcineurin modulates the phosphorylation state of KSR2, but not KSR1, and identifies S198, T287, and the S310 14-3-3 binding site as the KSR2 residues targeted by calcineurin.\|the negative regulators 14-3-3	SIGNOR-248381
P17676	P35318	1	transcriptional regulation	up-regulates quantity by expression	0.245	These findings suggest that NF-IL6 and AP-2 sites in the promoter region are the functional elements in the transcriptional regulation of human AM gene in vascular endothelial cells.	SIGNOR-254047
Q13464	O00429	1	phosphorylation	up-regulates activity	0.314	We have also previously reported that ROCK1-mediated Drp1S600 phosphorylation resulted in enhanced mitochondrial fission in podocytes	SIGNOR-262549
Q96L34	Q5BJF6	1	phosphorylation	up-regulates activity	0.516	Collectively, our data indicate that MARK4 interacts with ODF2 in vivo and phosphorylates ODF2 in vitro.\|Collectively, our data support the model that MARK4 promotes ciliogenesis by acting upstream of ODF2.	SIGNOR-278961
Q92804	Q99873	0	methylation	up-regulates	0.431	The methylation of taf15 by prmt1 is required for the ability of taf15 to positively regulate the expression of the studied endogenous taf15-target genes.	SIGNOR-183137
P41250	P18848	0	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-269426
Q99626	Q16539	0	phosphorylation	down-regulates quantity by destabilization	0.414	ERK2, p38alpha and GSK-3beta can phosphorylate Cdx2 in vitro and that the 4S motif is required for phosphorylation by GSK-3beta and p38alpha\|Phosphorylation of the homeotic tumor suppressor Cdx2 mediates its ubiquitin-dependent proteasome degradation	SIGNOR-250092
Q8N122	Q13131	0	phosphorylation	down-regulates activity	0.687	Ampk in turn inactivates mtorc1 directly by phosphorylating raptor and indirectly by phosphorylating tsc2.	SIGNOR-173035
P68400	P53539	1	phosphorylation	up-regulates	0.2	Our findings indicate that ck2 activation increases deltafosb's transactivation potential, while ck2 inhibition decreases it. Further, we show that preventing ser27 phosphorylation by mutating the site to ala results in a significant decrease in deltafosb transactivation	SIGNOR-152403
P28482	Q07820	1	phosphorylation	up-regulates	0.527	We found that jnk phosphorylated ser-121 and thr-163 of mcl-1 in response to stimulation with h(2)o(2) and that transfection of unphosphorylatable mcl-1 resulted in an enhanced anti-apoptotic activity in response to stimulation with h(2)o(2). Jnk-dependent phosphorylation and thus inactivation of mcl-1 may be one of the mechanisms through which oxidative stress induces cellular damage.	SIGNOR-92593
Q16143	P53350	0	phosphorylation	down-regulates activity	0.318	Polo-like kinase (plk) family (plk1, plk2, and plk3) phosphorylate alpha-syn and beta-syn specifically at ser-129 and ser-118, respectively. Polo-like kinase 2 (plk2) phosphorylates alpha-synuclein at serine 129 in central nervous system. The membrane association of pd-linked mutant alpha -synuclein, but not wild-type -synuclein, was increased by serine 129 phosphorylation.	SIGNOR-176079
Q14680	O43524	1	phosphorylation	down-regulates quantity	0.362	Further analysis indicated that FOXO1 and FOXO3, two known transcriptional regulators of p21, were phosphorylated by MELK and thus be involved in the induction of p21 after MELK inhibition.\|Our findings revealed that siRNA mediated MELK knockdown increased protein levels of FOXO1 and FOXO3, which might increase p21 transcriptional level in a p53 independent manner.	SIGNOR-279375
P17252	P60880	1	phosphorylation	up-regulates	0.353	Phosphorylation of snap-25 at ser187 mediates enhancement of exocytosis by a phorbol ester in ins-1 cells.	SIGNOR-160313
Q8IWB6	P53350	0	phosphorylation	down-regulates quantity by destabilization	0.354	We show that phosphorylation of Tex14 by Plk1 during metaphase is required for proteosome dependent degradation of Tex14 and transition from metaphase to anaphase. Phosphorylation of Tex14 Ser431 by Plk1 promotes Tex14 depletion.	SIGNOR-273529
Q9H3K2	P99999	1	relocalization	down-regulates quantity	0.255	MICS1 was clearly coprecipitated with cytochrome c-3FLAG and the amount was DSP concentration-dependent (Figure 6A). Together with the finding that overexpression of exogenous MICS1 delayed the apoptotic release of cytochrome c in normal-serum level medium (Figure 4A), these results suggest that MICS1 helps to retain cytochrome c in the inner membrane, apart from the morphological changes.	SIGNOR-260294
Q99873	Q9UKM9	0	post transcriptional regulation	up-regulates quantity	0.247	RALY binds poly-U rich elements within several RNAs and regulates the expression as well as the stability of specific transcripts. Here we show that RALY binds PRMT1 mRNA and regulates its expression.\|We demonstrate that RALY down-regulation decreases protein arginine N-methyltransferase 1 levels	SIGNOR-262273
P40763	P07332	0	phosphorylation	up-regulates activity	0.402	Fes also induced Tyr 705 phosphorylation and DNA binding activity of STAT3, in agreement with the idea that Fes can regulate transcriptional activation through Fes dependent phosphorylation of transcription factors.On the basis of these findings, we propose that Fes activation of critical transcriptional regulators such as PU.1 is part of the mechanism by which this kinase induces macrophage differentiation of myeloid progenitors.\|We conclude that Fes may regulate granulocytic differentiation at least in part through activation of C/EBP-alpha and STAT3.In 32D cells, Fes activated STAT3 and C/EBP-alpha, two important regulators of granulocytic differentiation [14,15].	SIGNOR-278937
Q13131	Q8ND76	1	phosphorylation	up-regulates activity	0.2	Our in vitro and cellular analyses supported the mass spectrometry data that implicated serine 326 (S326) as the phospho-acceptor site on CCNY by AMPK. \|Mechanistically the S326 phosphorylation by AMPK promotes the interaction of CCNY with CDK16, which in turn autophosphorylates S336, which serves as a marker for active CCNY-CDK16	SIGNOR-273011
P24941	Q13309	1	phosphorylation	up-regulates quantity by stabilization	0.799	The activity of SCF(Skp2) is regulated by the Cyclin-dependent kinase (CDK)2-mediated phosphorylation of Skp2 on Ser64 allows its expression in mid-G1 phase, even in the presence of active APC(Cdh1). Reciprocally, dephosphorylation of Skp2 by the mitotic phosphatase Cdc14B at the M --> G1 transition promotes its degradation by APC(Cdh1).	SIGNOR-249173
P15172	P53778	0	phosphorylation	up-regulates activity	0.446	We determined that p38-gamma directly phosphorylated MyoD on Ser199 and Ser200, which results in enhanced occupancy of MyoD on the promoter of myogenin together with markedly decreased transcriptional activity. Phosphorylation of MyoD by p38-γ directs the assembly of a repressive transcriptional complex at the Myogenin promoter.	SIGNOR-276273
P67809	P28482	0	phosphorylation	up-regulates activity	0.47	ERK2 may also directly phosphorylate YB-1 and therefore promotes its ability to transactivate target genes.	SIGNOR-279227
Q9UQC2	A7KAX9	1	relocalization	up-regulates	0.374	Gc-gap, a rho family gtpase-activating protein that interacts with signaling adapters gab1 and gab2we propose that gab1 and gab2 in cooperation with other adapter molecules might regulate the cellular localization of gc-gap under specific stimuli.	SIGNOR-102628
P15311	Q00535	0	phosphorylation	up-regulates activity	0.464	Increased ezrin expression and activation by CDK5 coincident with acquisition of the senescent phenotype.	SIGNOR-250665
P63244	P00519	0	phosphorylation	up-regulates	0.2	Phosphorylation of rack1 on tyrosine 52 by c-abl is required for insulin-like growth factor i-mediated regulation of focal adhesion kinase.Tyrosine 52 is further shown to be phosphorylated by c-abl kinase, and the c-abl inhibitor sti571 disrupts fak interaction with rack1	SIGNOR-185649
Q01082	P17612	0	phosphorylation	down-regulates activity	0.331	Short C-terminal splice variant of betaII-spectrin (betaIISigma2) is a substrate for phosphorylation. protein kinase A phosphorylates Thr-2159. Mammalian alphaII- and betaII-spectrin subunits form dimers that associate head to head with high affinity to form tetramers In vitro, protein kinase A phosphorylation of an active fragment of betaIISigma2 greatly reduced its interaction with alphaII-spectrin at the tetramerization site.	SIGNOR-250054
Q12933	Q9NQC7	0	deubiquitination	down-regulates activity	0.677	Cyld also interacts directly with tumour-necrosis factor receptor (tnfr)-associated factor 2 (traf2), an adaptor molecule involved in by members of the family of tnf/nerve growth factor receptors. (articolo-abstract)	SIGNOR-117860
P21333	P16298	0	dephosphorylation	down-regulates quantity by destabilization	0.2	Filamin is a phosphoprotein that organizes actin filaments into networks. We report that a purified C-terminal recombinant region of filamin is a suitable substrate for calcineurin \|Mutagenesis analysis showed that a dephosphorylation step occurred in Ser 2152, which was previously shown to provide resistance to calpain cleavage when endogenous PKA is activated. In contrast, phosphorylation of Ser 2152 was recently reported to be necessary for membrane dynamic changes. In this regard, we found that CsA protects filamin in platelets from calpain degradation.	SIGNOR-248362
P48730	P17252	0	phosphorylation	up-regulates activity	0.2	In the present study we analyzed the CK1δ kinase domain for phosphorylation sites targeted by PKCα. Several phosphorylation sites were identified in vitro by initially using GST-CK1δ wild type and phosphorylation-site mutant protein fragments originating from the CK1δ kinase domain. Residues S53, T176, and S181 could finally be confirmed as targets for PKCα. Determination of kinetic parameters of full-length wild type and mutant GST-CK1δ-mediated substrate phosphorylation revealed that integrity of residue T176 is crucial for maintaining CK1δ kinase activity.	SIGNOR-277452
Q96EB6	P17861-2	1	deacetylation	down-regulates activity	0.379	P300 increases the acetylation and protein stability of XBP1s, and enhances its transcriptional activity, whereas SIRT1 deacetylates XBP1s and inhibits its transcriptional activity.. The mRNA encoding the active spliced form of XBP1 (XBP1s) is generated from the unspliced form by IRE1 (inositol-requiring enzyme 1) during the UPR.	SIGNOR-260430
Q6ZMG9	P68400	0	phosphorylation	up-regulates activity	0.2	Most of the phosphorylated residues conformed to a consensus motif for phosphorylation by casein kinase 2 (CK2), and treatment of cells with the CK2-specific inhibitor CX-4945 lowered the phosphorylation levels of CERS2, -4, -5, and -6. Phosphorylation of CERS2 was especially important for its catalytic activity, acting mainly by increasing itsVmaxvalue.	SIGNOR-273992
P23458	Q13261	0	null	up-regulates	0.462	Since Jak-STAT pathway primarily activated in IL-15-me- diated cell proliferation, we tested whether it is also participates in IL-15-mediated proliferation of FAPs. Interestingly, we found the expression of phospho-Jak3 and phospho-Tyk2, as well as their downstream, phospho- STAT3 and phospho-STAT5, was significantly upregulated	SIGNOR-256227
P23470	O75553	1	dephosphorylation	down-regulates activity	0.2	PTPRG activation by the P1-WD peptide affected the tyrosine phosphorylation of several signaling molecules. Data analysis identified 31 molecules whose phosphorylation was modified in a statistically significant manner (Table I). inhibition of ABL1, BMX, BTK, DAB1, ITGB1, JAK2, KDR, KIT, LIMK1, MET, PDGFRB, SHC1, and VCL correlates with tyrosine dephosphorylation. In contrast, SRC inhibition correlates with hyperphosphorylation of the inhibitory Tyr530 residue and with dephosphorylation of the activatory Tyr419. Moreover, CDK2 and CTTN inhibition correlates with a hyperphosphorylation of the inhibitory Tyr15 and Tyr470, respectively. In contrast, a subgroup of 13 proteins, including BLNK, DOK2, ERBB2, GRIN2B, INSR, PDGFRA, PRKCD, PXN, STAT1, STAT2, STAT3, STAT5A, and ZAP70, appears to be activated by PTPRG activity.	SIGNOR-254697
P61586	Q9P2F6	0	gtpase-activating protein	down-regulates activity	0.709	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-260472
O60674	Q92915	1	phosphorylation	up-regulates activity	0.2	JAK2 regulates Nav1.6 channel function via FGF14Y158 phosphorylation\|Patch-clamp electrophysiology revealed that through Y158, JAK2 controls FGF14-dependent modulation of Nav1.6 channels. In hippocampal CA1 pyramidal neurons, the JAK2 inhibitor Fedratinib reduced firing by a mechanism that is dependent upon expression of FGF14.	SIGNOR-275747
P17252	Q12791	1	phosphorylation	up-regulates	0.2	Results showed that mutating s1076 altered the effect of pkc activation on bk(ca) channels in hek-293 cells	SIGNOR-186755
P46531	Q8IUQ4	0	relocalization	up-regulates	0.26	The overexpression of siah1 causes the re-localization of notch from the cell surface to the cytoplasm and to the nucleus, which is indicative of notch activation	SIGNOR-168460
P53350	P30622	1	phosphorylation	up-regulates	0.703	Furthermore, we provide evidence that plk1 phosphorylation of clip-170 at s195 enhances its association with ck2	SIGNOR-167172

P05412

Q14164

0

phosphorylation

up-regulates activity

0.316

Indeed, using an in vitro kinase assay, we demonstrated that both JNK and IKKepsilon phosphorylated c-Jun (XREF_FIG and XREF_SUPPLEMENTARY).

SIGNOR-279621

P11309

P08183

1

dephosphorylation

up-regulates activity

0.438

Protein phosphatase complex PP5/PPP2R3C dephosphorylates P-glycoprotein/ABCB1 and down-regulates the expression and function|P-gp is known to be phosphorylated at Ser667, Ser671, and Ser683 by PKA; at Ser661, Ser667, and Ser671 by PKC; and at Ser683 by Pim-1|simultaneous expression of PP5 and PPP2R3C reduced the phosphorylation detected by the antibodies that specifically recognize serine/threonine phosphorylated by PKA or serine phosphorylated by PKC. These results suggest that the PP5/PPP2R3C complex dephosphorylates PKA- and PKC-phosphorylated serine residues on P-gp

SIGNOR-272511

Q15796

Q9UQM7

0

phosphorylation

down-regulates

0.549

Smad2 is a target substrate for cam kinase ii in vitro at serine-110, -240, and -260. furthermore, cam kinase ii blocked nuclear accumulation of a smad2 and induced smad2-smad4 hetero-oligomerization independently of tgfbeta receptor activation, while preventing tgfbeta-dependent smad2-smad3 interactions.

SIGNOR-82970

Q13283

P68400

0

phosphorylation

down-regulates activity

0.239

We also show that casein kinase 2 phosphorylates G3BP1 at serine 149 in vitro and in cells. These data support a role for casein kinase 2 in regulation of protein synthesis by downregulating stress granule formation through G3BP1.CK2 regulates SG disassembly during stress recovery.G3BP1 is among the strongest SG nucleating proteins, and previous work indicated that G3BP1 phosphorylation at S149 restricts stress granule assembly by partly inhibiting G3BP1 oligomerization

SIGNOR-260748

Q14493

Q5QNW6

1

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-265394

Q15121

P31749

0

phosphorylation

up-regulates activity

0.517

Protein kinase b/akt binds and phosphorylates ped/pea-15, stabilizing its antiapoptotic action.

SIGNOR-102092

P49768

P45984

0

phosphorylation

up-regulates

0.376

This jnk phosphorylation of ps1 at ser(319)thr(320) enhances the stability of the ps1 c-terminal fragment that is necessary for gamma-secretase activity.

SIGNOR-179676

P45983

P40763

1

phosphorylation

up-regulates activity

0.567

Transfection of the cells with sirna specific for jnk1 revealed that jnk silencing reduced serine727 phosphorylation of stat3,

SIGNOR-235704

Q16659

O60229

1

phosphorylation

up-regulates activity

0.406

The brain-specific nucleotide exchange factor kalirin-7 (Kal7) was identified as an MK5 interaction partner and substrate protein. The MK5 substrate Kal7, a Rho GEF and known activator of Rac GTPases, further contributes to PAK activation and actin filament reorganization. Thus, the coordinated phosphorylation of Borg proteins and Kal7 by ERK3 and MK5 constitute a novel signaling cascade involving feed-forward circuits, multiple GTPases, and cytoskeletal elements.

SIGNOR-263094

P07948

Q14790

1

phosphorylation

down-regulates activity

0.311

The non-receptor tyrosine kinase, Lyn, can phosphorylate caspase-8 on Tyr-397 and Tyr-465, rendering it resistant to activational cleavage and inhibiting apoptosis.

SIGNOR-272980

Q6NYC1

Q7L2J0

1

cleavage

down-regulates activity

0.268

JMJD6 cleaves MePCE. we propose that JMJD6 is the cognate protease of MePCE and cleaves at the R171 site within MePCE. Experiments using purified JMJD6 showed that it could make a cut in an enzyme called MePCE, which belongs to the group of proteins that hold P-TEFb in its inactive form. The levels of activated Pol II were lower in cells without JMJD6 and higher in those without MePCE. Together, the results suggest that JMJD6 cuts MePCE to release P-TEFb, which then activates Pol II.

SIGNOR-261037

Q14493

Q6DN03

1

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-265382

Q16827

P12931

1

dephosphorylation

down-regulates activity

0.422

SRC activation triggered by loss of PTPRO leads to c-CBL degradation.|These data corroborate that PTPRO directly dephosphorylates SRC at Y416.

SIGNOR-277004

P17252

Q9UKF7

1

phosphorylation

up-regulates activity

0.319

Only BIM-I caused a reduction in 14-3-3 binding (Figure 3B), suggesting that PKC could be responsible for one or both of the serine phosphorylations, pSer274 and pSer299.

SIGNOR-273801

P68431

Q9UPS6

0

methylation

down-regulates activity

0.2

SETD1B encodes a lysine-specific methyltransferase that assists in transcriptional activation of genes by depositing H3K4 methyl marks.

SIGNOR-265576

O14965

P04637

1

phosphorylation

up-regulates activity

0.778

The N-terminus of E2F1 can interact directly with a region towards the C-terminus of p53, resulting in increased nuclear retention of p53 and p53-mediated transcription and apoptosis. This is inhibited by competition between p53 and cyclin A at the binding site within E2F19,10. The interaction between p53 and E2F1 is enhanced by phosphorylation of p53 on Ser315, a residue within the E2F1 binding region that is phosphorylated by cell cycle kinases such as cdk1, cdk2, cdk9 and Aurora kinase A

SIGNOR-120836

P25490

Q13547

0

deacetylation

down-regulates activity

0.798

Previous studies have established that YY1 interacts with histone acetyltransferases p300 and CREB-binding protein (CBP) and histone deacetylase 1 (HDAC1), HDAC2, and HDAC3. Here, we present evidence that the activity of YY1 is regulated through acetylation by p300 and PCAF and through deacetylation by HDACs. YY1 was acetylated in two regions: both p300 and PCAF acetylated the central glycine-lysine-rich domain of residues 170 to 200, and PCAF also acetylated YY1 at the C-terminal DNA-binding zinc finger domain. Acetylation of the central region was required for the full transcriptional repressor activity of YY1 and targeted YY1 for active deacetylation by HDACs.

SIGNOR-268835

Q9BXS6

P06493

0

phosphorylation

down-regulates

0.431

We report here that cdk1 phosphorylates nusap at threonine 300 and 338 in early mitosis. Phosphorylation of nusap inhibits its microtubule-binding activity in vitro and in vivo.

SIGNOR-177549

P50281

P02679

1

cleavage

down-regulates quantity by destabilization

0.2

Matrix metalloproteinases collagenase-2, macrophage elastase, collagenase-3, and membrane type 1-matrix metalloproteinase impair clotting by degradation of fibrinogen and factor XII| We have now investigated the role of collagenase-2 (MMP-8), macrophage elastase (MMP-12), collagenase-3 (MMP-13), and membrane type 1-matrix metalloproteinase (MT1-MMP, MMP-14) in the degradation of fibrinogen and Factor XII of the plasma clotting system.|MMP-14 27YVATRDN g-chain| 105XDAATLKSR g-chain | 92LTYNPDES g-chain |105LTTNIXEXL a-chain|433LVTSKGDKE a-chain| 117FXSANNRD a-chain

SIGNOR-263616

Q16539

O75676

1

phosphorylation

up-regulates

0.604

Rskb, a 90-kda ribosomal s6 protein kinase family (rsk) member with two complete catalytic domains connected by a linker, is activated through p38- and erk-mitogen-activated protein kinases. unlike other rsks, the activation loop phosphorylation sites of both catalytic domains of rskb, ser(196) and thr(568), were required for activity. Rskb activation depended on phosphorylation of linker ser(343) and ser(360) and associated with phosphorylation of nonconserved ser(347), but ser(347)-deficient rskb retained partial activity.

SIGNOR-77212

Q9NXA8

P07195

1

deacetylation

up-regulates activity

0.2

In colorectal cancer, SIRT5 binds to lactate dehydrogenase B (LDHB) to deacetylate it at Lysine 329, thereby increasing its enzymatic activity.

SIGNOR-267645

O15294

P06737

1

glycosylation

up-regulates activity

0.2

O-GlcNAcylation at Ser-430 promotes PYGL activity

SIGNOR-267988

P68400

Q9Y5B0

1

phosphorylation

down-regulates activity

0.373

We found that only phosphorylated FCP1 can physically interact with TFIIF. We set out to purify an FCP1 kinase from HeLa cells and identified casein kinase 2, which, surprisingly, displayed a negative effect on FCP1-associated activities.| Phosphorylation of FCP1 by CK2 Inhibits the Transcription Elongation Activity of FCP1. | Two in vivo phosphorylation sites within the C terminus of FCP1 at Ser-575 and Ser-740 were identified

SIGNOR-250844

P56645

P48730

0

phosphorylation

down-regulates quantity by destabilization

0.719

We show here that mPer proteins, negative limbs of the autoregulatory loop, are specific substrates for CKIepsilon and CKIdelta. The CKI phosphorylation of mPer1 and mPer3 proteins results in their rapid degradation, which is dependent on the ubiquitin-proteasome pathway.

SIGNOR-267998

Q9UK80

Q16539

0

phosphorylation

up-regulates activity

0.253

In this study, we found that USP21 is an important deubiquitinating enzyme for STING and that it negatively regulates the DNA virus-induced production of type I interferons by hydrolyzing K27/63-linked polyubiquitin chain on STING. HSV-1 infection recruited USP21 to STING at late stage by p38-mediated phosphorylation of USP21 at Ser538. I

SIGNOR-273670

P31749

Q9BXL7

1

phosphorylation

up-regulates activity

0.522

Akt phosphorylates S637 and S645 in the linker region of Carma1

SIGNOR-276621

Q02880

P48730

0

phosphorylation

down-regulates quantity by destabilization

0.2

Specifically, DNA damage signal, triggered by teniposide (VM-26) treatment, activates ATM, cooperating with CK1 to phosphorylate TOP2β on Ser1134 and Ser1130, respectively, in a canonical degron motif to facilitate β-TrCP binding and subsequent degradation.CK1 binds with and phosphorylates TOP2β at Ser1130 to promote its degradation by VM-26.

SIGNOR-277509

Q00653

Q99558

0

phosphorylation

up-regulates activity

0.677

NIK-induced p100 processing requires phosphorylation of p100 at serines 866 and 870

SIGNOR-105553

P50552

Q15418

0

phosphorylation

down-regulates

0.45

Rsk1 phosphorylated vasp on t278, a site regulating its binding to actin.

SIGNOR-172899

P06493

P17096

1

phosphorylation

down-regulates

0.384

Here, we found that hipk2 phosphorylates hmga1a at ser-35, thr-52, and thr-77, and hmga1b at thr-41 and thr-66. In addition, we demonstrated that cdc2, which is known to phosphorylate hmga1 proteins, could induce the phosphorylation of hmga1 proteins at the same ser/thr sites. we found that the hipk2-phosphorylated hmga1a reduced the binding affinity of hmga1a to human germ line promoter, and the drop in binding affinity induced by hipk2 phosphorylation was lower than that introduced by cdc2 phosphorylation.

SIGNOR-158604

P12830

P68400

0

phosphorylation

up-regulates activity

0.401

Casein kinase II phosphorylation of E-cadherin increases E-cadherin/beta-catenin interaction and strengthens cell-cell adhesion. | Under these conditions, phosphorylation of the E-cadherin double mutant S853A/S855A was reduced by 25% as compared with wt E-cadherin. | Expression of the E-cadherin double mutant S853A/S855A in NIH3T3 cells expressing Wnt-1 reduces cell-cell adhesion.

SIGNOR-250840

P16157

O00533

0

relocalization

up-regulates quantity

0.532

Neurofascin, L1, NrCAM, NgCAM, and neuroglian are membrane-spanning cell adhesion molecules with conserved cytoplasmic domains that are believed to play important roles in development of the nervous system. This report presents biochemical evidence that the cytoplasmic domains of these molecules associate directly with ankyrins, a family of spectrin-binding proteins located on the cytoplasmic surface of specialized plasma membrane domains.

SIGNOR-266724

Q13507

P17252

0

phosphorylation

down-regulates

0.348

There are two known phosphorylation-mediated inactivation mechanisms for trpc3 channels. Protein kinase g (pkg) inactivates trpc3 by direct phosphorylation on thr-11 and ser-263 of the trpc3 proteins, and protein kinase c (pkc) inactivates trpc3 by phosphorylation on ser-712.

SIGNOR-130269

O14974

Q13418

0

phosphorylation

down-regulates activity

0.584

MYPT1 was phosphorylated by ILK and phosphorylation sites in the N- and C-terminal fragments of MYPT1 were detected. From sequence analyses, three sites were identified: a primary site at Thr(709), and two other sites at Thr(695) and Thr(495). ILK produced an intermediate level of inhibition

SIGNOR-262884

P23467

P06213

1

dephosphorylation

down-regulates

0.344

Identification of tyrosine phosphatases that dephosphorylate the insulin receptor.

SIGNOR-75997

Q99816

O60291

0

monoubiquitination

up-regulates activity

0.492

In the present study, we identified the first substrate of the Mahogunin E3 ubiquitin–protein ligase: TSG101, a key component of the endosomal sorting ESCRT machinery.We find that Mahogunin interacts with the ubiquitin E2 variant (UEV) domain of TSG101 via its PSAP motif and that it catalyzes monoubiquitylation of TSG101 both in vivo and in vitro. Consistent with the results of the biochemical characterization and subcellular localization studies of Mahogunin, our functional studies provide direct evidence that Mahogunin plays an essential role in regulation of endosome-to-lysosome trafficking. We found that siRNA-mediated depletion of Mahogunin in HeLa cells causes enlargement and clustering of EEA1-positive endosomes and LAMP2-positive late endosomes/lysosomes (Figure 8B) and inhibits the endosomal trafficking of internalized EGF–EGFR complexes to lysosomes for degradation (Figures 9 and and10,10, A and B). These results are strikingly similar to the phenotypes that resulted from depletion of TSG101

SIGNOR-271635

Q5VTB9

O75182

1

polyubiquitination

down-regulates quantity by destabilization

0.429

Here we identify RNF220 (RING finger protein 220) as a novel ubiquitin ligase for Sin3B. RNF220 specifically interacts with Sin3B both in vitro and in vivo. Sin3B can be regulated by the ubiquitin-proteasome system. Co-expression of RNF220 promotes the ubiquitination and proteasomal degradation of Sin3B.

SIGNOR-271943

P31749

P36776

1

phosphorylation

up-regulates activity

0.253

In mitochondria, LonP1 is phosphorylated by Akt on Ser173 and Ser181, enhancing its protease activity.

SIGNOR-265724

Q05513

P10636-2

1

phosphorylation

down-regulates activity

0.268

We have studied the relationship between the phosphorylation oftau by several kinases (MARK, PKA, MAPK, GSK3) and its assembly into PHFs. By contrast, MARK and PKA phosphorylate several sites within the repeats (notably theKXGS motifs including Ser262, Ser324, and Ser356, plus Ser320); in addition PKA phosphorylates somesites in the flanking domains, notably Ser214. This type of phosphorylation strongly reduces tau’s affinityfor microtubules, and at the same time inhibits tau’s assembly into PHFs.

SIGNOR-275447

O15350

P53350

0

phosphorylation

down-regulates

0.51

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

SIGNOR-178253

P16220

Q9Y243

0

phosphorylation

up-regulates

0.496

When overexpressed in serum-stimulated cells, akt/pkb potently induced ser-133 phosphorylation of creb and promoted recruitment of cbp.

SIGNOR-62257

Q16512

P06493

0

phosphorylation

up-regulates activity

0.436

CDK1 phosphorylates PKN1 at S533, S537, S562, and S916 in vitro and in cells during drug-induced mitotic arrest. Immunofluorescence staining further confirmed that PKN1 phosphorylation occurs during normal mitosis in a CDK1-dependent manner.Knockdown of PKN1 significantly inhibited anchorage-independent growth and migration without affecting proliferation in multiple cancer cell lines.

SIGNOR-276831

O14920

Q15672

1

phosphorylation

down-regulates activity

0.332

Hence, our current study supports the pivotal role of beta-TRCP in IKKbeta mediated Twist degradation.|More importantly, IKK\u03b2-dependent phosphorylation of Twist at T125 and S127 governs its nuclear localization.

SIGNOR-278404

P24928

Q8IXW5

0

dephosphorylation

up-regulates activity

0.738

In addition, we show that RPAP2 is a CTD Ser5 phosphatase. Taken together, our results indicate that during transcription of snRNA genes, Ser7 phosphorylation facilitates recruitment of RPAP2, which in turn both recruits Integrator and dephosphorylates Ser5.|The Pol II CTD is first phosphorylated on Ser5 and then on Ser7 by CDK7. RPAP2 associates with the Pol II CTD after Ser7 phosphorylation and tethers a subcomplex of Integrator to snRNA genes. RPAP2 dephosphorylates Ser5P of the CTD, facilitating transcription and the subsequent recruitment of the Int11 catalytic subunit of Integrator

SIGNOR-248748

Q9BWU1

P46531

1

phosphorylation

down-regulates quantity by destabilization

0.302

Mapping of cyclin C-dependent phosphosites on ICN1, using mass spectrometry revealed that several of them are located within the PEST-domain of Notch1, which controls ICN1 degradation38,39 (Fig. 5g and Supplementary Table 1). Three of them (T2512, S2514 and S2517) are localized within the consensus motif, “Cdc4 phosphodegron”, which is shared by most substrates of Fbw7 (Cdc4) ubiquitin ligase38. Two of these residues (S2514 and S2517) were previously shown by Fryer et al.20 to be phosphorylated by cyclin C-CDK8 in vitro, and all three were shown to play a role in controlling ICN1 stability via Fbw740. We verified that cyclin C-CDK8, C-CDK19 and C-CDK3 phosphorylate ICN1 on these three residues

SIGNOR-273135

Q9Y4K4

P49841

1

phosphorylation

down-regulates

0.2

Gckr can phosphorylate an n-terminal recombinant fusion protein of gsk3_ and enhance the in vivo phosphorylation of gsk3_ on serine 9reduction of gckr expression inhibits wnt3a-induced phosphorylation of gsk3_ at serine 9 and decreases the accumulation of cytosolic _-catenin.

SIGNOR-148908

Q9UHC7

P11940

1

ubiquitination

up-regulates activity

0.35

We show that MKRN1 directly binds to the cytoplasmic poly(A)-binding protein (PABPC1) and associates with polysomes. MKRN1 is positioned upstream of poly(A) tails in mRNAs in a PABPC1-dependent manner. Ubiquitin remnant profiling and in vitro ubiquitylation assays uncover PABPC1 and ribosomal protein RPS10 as direct ubiquitylation substrates of MKRN1.Our data show that MKRN1 associates with polysomes and ubiquitylates RPS10, indicating a role in translational control. We hypothesize that ribosomes encountering the MKRN1-PABPC1 complex are stalled, possibly via ubiquitylation of RPS10 on K107 and other MKRN1 substrates.

SIGNOR-272215

Q9HAW8

Q99626

0

transcriptional regulation

up-regulates quantity by expression

0.257

Using gel shift and functional assays, HNF1alpha was demonstrated to bind to and activate the UGT1A8, -1A9, and -1A10 promoters. In contrast, Cdx2 bound to and activated the UGT1A8 and -1A10 promoters but could not activate the UGT1A9 promoter.

SIGNOR-253968

Q12800

P24941

0

phosphorylation

down-regulates

0.2

In vitro, lsf is phosphorylated by cyclin e/cyclin-dependent kinase 2 (cdk2), cyclin c/cdk2, and cyclin c/cdk3, predominantly on s309. Phosphorylation by cyclin c/cyclin-dependent kinase 2 following mitogenic stimulation of murine fibroblasts inhibits transcriptional activity of lsf during g1 progression

SIGNOR-184160

P68400

P20042

1

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

P12931

P46940

1

phosphorylation

up-regulates activity

0.695

IQGAP1 was phosphorylated exclusively on Tyr-1510 under conditions with enhanced MET or c-Src signaling, including in human lung cancer cell lines. This phosphorylation was significantly reduced by chemical inhibitors of MET or c-Src or by siRNA-mediated knockdown of MET.

SIGNOR-277533

Q86YS7

P31751

0

phosphorylation

up-regulates activity

0.513

MS analysis of an HA-CDP138 sample from the in vitro kinase assay revealed that active Akt2 induces CDP138 phosphorylation at serine (Ser)197, which lies within a consensus Akt substrate motif RQRLIS 197 ( xref ).

SIGNOR-279585

P50750

Q15596

1

phosphorylation

up-regulates activity

0.246

Interestingly, GRIP1 is phosphorylated at an N-terminal serine cluster by cyclin-dependent kinase-9 (CDK9), which is recruited into GC-induced GR:GRIP1:CDK9 hetero-complexes, producing distinct GRE-specific GRIP1 phospho-isoforms. Phosphorylation potentiates GRIP1 coactivator but, remarkably, not its corepressor properties.

SIGNOR-256098

O15054

Q99814

0

transcriptional regulation

up-regulates quantity by expression

0.2

To this end, we confirm that KDM3A, KDM4B, KDM4C, KDM5B, KDM5C, and KDM62 are direct targets of HIF-1a while extent the list of known targets to KDM2A, KDM2B, KDM4D, KDM5A, and KDM6A. The results demonstrated that majority of the KDMs were similarly induced (KDM2A, KDM2B, KDM3A, KDM4B, KDM4C, KDM4D, KDM5A, KDM5B, KDM5C, KDM6B, and KDM7A) or repressed (KDM NO66 and KDM1A) by both HIF-1a and HIF-2a.

SIGNOR-271586

Q8NEV1

Q92915

1

phosphorylation

up-regulates activity

0.269

Bioluminescence-based screening of small molecule modulators of the FGF14:Nav1.6 complex identified 4,5,6,7 -: tetrabromobenzotriazole (TBB), a potent casein kinase 2 (CK2) inhibitor, as a strong suppressor of FGF14:Nav1.6 interaction. Inhibition of CK2 through TBB reduces the interaction of FGF14 with Nav1.6 and Nav1.2 channels. Mass spectrometry confirmed direct phosphorylation of FGF14 by CK2 at S228 and S230, and mutation to alanine at these sites modified FGF14 modulation of Nav1.6-mediated currents.

SIGNOR-275743

Q14774

P49918

1

transcriptional regulation

up-regulates quantity by expression

0.2

In this study, we have identified cell cycle regulatory genes as downstream targets of the homeobox gene HLX in cultured trophoblast cells, namely RB1, MYC, EGR1, CDKN1C, ELK1, CCNB1, and JUN. RB1 and MYC mRNA expression was increased with HLX inactivation, whereas EGR1, CDKN1C, ELK1, CCNB1, and JUN mRNA expression was decreased compared with mock-transfected control cells.

SIGNOR-261620

P29597

P17181

1

phosphorylation

up-regulates activity

0.91

We demonstrate that, in vitro, p135tyk2 phosphorylates two tyrosines on IFNaR1. A phosphopeptide corresponding to the major phosphorylation site (Tyr466) binds STAT2, but not STAT1, in an SH-2-dependent manner. Furthermore, only latent, non-phosphorylated STAT2 interacts with this phosphopeptide. When this phosphopeptide is introduced into permeabilized cells, the IFN alpha-dependent tyrosine phosphorylation of both STATs is blocked. Finally, mutant versions of IFNaR1, in which Tyr466 is changed to phenylalanine, can act in a dominant negative manner to inhibit phosphorylation of STAT2.

SIGNOR-246934

P13569

Q9P0N8

0

ubiquitination

down-regulates quantity by destabilization

0.2

A catalytically dead MARCH2 RING mutant was unable to promote CFTR degradation.|In vivo ubiquitination assays demonstrated the ubiquitination of CFTR by MARCH2, and overexpression of MARCH2, like that of CAL and STX6, led to a dose dependent degradation of mature CFTR that was blocked by bafilomycin A1 treatment.

SIGNOR-278584

Q14980

P06493

0

phosphorylation

down-regulates

0.587

Cdk1-mediated phosphorylation at t2055 negatively regulates numa cortical localization and that this phosphorylation is counteracted by ppp2ca phosphatase activity.

SIGNOR-194825

P00748

P45452

0

cleavage

down-regulates quantity by destabilization

0.313

The data presented in this study show for the first time the degradation of Factor XII of the blood clotting system by matrix metalloproteinases. MMP-12, MMP-13, and MMP-14 cleave at Gly376Leu377|However, no activity of Factor XII can be observed after MMPinduced cleavage.

SIGNOR-263609

P00533

Q9UKV8

1

phosphorylation

up-regulates activity

0.534

Furthermore, AGO2 function is directly modulated by EGFR signaling in ERalpha negative breast cancer under states of hypoxic stress.|Here, EGFR can directly bind and phosphorylate residue Y393 of AGO2[ xref ].

SIGNOR-278931

O15530

O00141

1

phosphorylation

up-regulates activity

0.65

PDK1 activates SGK in vitro by phosphorylating Thr256.

SIGNOR-250275

P12931

Q8WUM4

1

phosphorylation

down-regulates activity

0.393

Src phosphorylation of Alix/AIP1 modulates its interaction with binding partners and antagonizes its activities. Phosphorylation of Alix by Src caused it to translocate from the membrane and cytoskeleton to the cytoplasm and reduced its interaction with binding partners SETA/CIN85, epidermal growth factor receptor, and Pyk2.

SIGNOR-263201

P16298

Q6VAB6

1

dephosphorylation

up-regulates activity

0.259

These findings indicate that calcineurin modulates the phosphorylation state of KSR2, but not KSR1, and identifies S198, T287, and the S310 14-3-3 binding site as the KSR2 residues targeted by calcineurin.|the negative regulators 14-3-3

SIGNOR-248381

P17676

P35318

1

transcriptional regulation

up-regulates quantity by expression

0.245

These findings suggest that NF-IL6 and AP-2 sites in the promoter region are the functional elements in the transcriptional regulation of human AM gene in vascular endothelial cells.

SIGNOR-254047

Q13464

O00429

1

phosphorylation

up-regulates activity

0.314

We have also previously reported that ROCK1-mediated Drp1S600 phosphorylation resulted in enhanced mitochondrial fission in podocytes

SIGNOR-262549

Q96L34

Q5BJF6

1

phosphorylation

up-regulates activity

0.516

Collectively, our data indicate that MARK4 interacts with ODF2 in vivo and phosphorylates ODF2 in vitro.|Collectively, our data support the model that MARK4 promotes ciliogenesis by acting upstream of ODF2.

SIGNOR-278961

Q92804

Q99873

0

methylation

up-regulates

0.431

The methylation of taf15 by prmt1 is required for the ability of taf15 to positively regulate the expression of the studied endogenous taf15-target genes.

SIGNOR-183137

P41250

P18848

0

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-269426

Q99626

Q16539

0

phosphorylation

down-regulates quantity by destabilization

0.414

ERK2, p38alpha and GSK-3beta can phosphorylate Cdx2 in vitro and that the 4S motif is required for phosphorylation by GSK-3beta and p38alpha|Phosphorylation of the homeotic tumor suppressor Cdx2 mediates its ubiquitin-dependent proteasome degradation

SIGNOR-250092

Q8N122

Q13131

0

phosphorylation

down-regulates activity

0.687

Ampk in turn inactivates mtorc1 directly by phosphorylating raptor and indirectly by phosphorylating tsc2.

SIGNOR-173035

P68400

P53539

1

phosphorylation

up-regulates

0.2

Our findings indicate that ck2 activation increases deltafosb's transactivation potential, while ck2 inhibition decreases it. Further, we show that preventing ser27 phosphorylation by mutating the site to ala results in a significant decrease in deltafosb transactivation

SIGNOR-152403

P28482

Q07820

1

phosphorylation

up-regulates

0.527

We found that jnk phosphorylated ser-121 and thr-163 of mcl-1 in response to stimulation with h(2)o(2) and that transfection of unphosphorylatable mcl-1 resulted in an enhanced anti-apoptotic activity in response to stimulation with h(2)o(2). Jnk-dependent phosphorylation and thus inactivation of mcl-1 may be one of the mechanisms through which oxidative stress induces cellular damage.

SIGNOR-92593

Q16143

P53350

0

phosphorylation

down-regulates activity

0.318

Polo-like kinase (plk) family (plk1, plk2, and plk3) phosphorylate alpha-syn and beta-syn specifically at ser-129 and ser-118, respectively. Polo-like kinase 2 (plk2) phosphorylates alpha-synuclein at serine 129 in central nervous system. The membrane association of pd-linked mutant alpha -synuclein, but not wild-type -synuclein, was increased by serine 129 phosphorylation.

SIGNOR-176079

Q14680

O43524

1

phosphorylation

down-regulates quantity

0.362

Further analysis indicated that FOXO1 and FOXO3, two known transcriptional regulators of p21, were phosphorylated by MELK and thus be involved in the induction of p21 after MELK inhibition.|Our findings revealed that siRNA mediated MELK knockdown increased protein levels of FOXO1 and FOXO3, which might increase p21 transcriptional level in a p53 independent manner.

SIGNOR-279375

P17252

P60880

1

phosphorylation

up-regulates

0.353

Phosphorylation of snap-25 at ser187 mediates enhancement of exocytosis by a phorbol ester in ins-1 cells.

SIGNOR-160313

Q8IWB6

P53350

0

phosphorylation

down-regulates quantity by destabilization

0.354

We show that phosphorylation of Tex14 by Plk1 during metaphase is required for proteosome dependent degradation of Tex14 and transition from metaphase to anaphase. Phosphorylation of Tex14 Ser431 by Plk1 promotes Tex14 depletion.

SIGNOR-273529

Q9H3K2

P99999

1

relocalization

down-regulates quantity

0.255

MICS1 was clearly coprecipitated with cytochrome c-3FLAG and the amount was DSP concentration-dependent (Figure 6A). Together with the finding that overexpression of exogenous MICS1 delayed the apoptotic release of cytochrome c in normal-serum level medium (Figure 4A), these results suggest that MICS1 helps to retain cytochrome c in the inner membrane, apart from the morphological changes.

SIGNOR-260294

Q99873

Q9UKM9

0

post transcriptional regulation

up-regulates quantity

0.247

RALY binds poly-U rich elements within several RNAs and regulates the expression as well as the stability of specific transcripts. Here we show that RALY binds PRMT1 mRNA and regulates its expression.|We demonstrate that RALY down-regulation decreases protein arginine N-methyltransferase 1 levels

SIGNOR-262273

P40763

P07332

0

phosphorylation

up-regulates activity

0.402

Fes also induced Tyr 705 phosphorylation and DNA binding activity of STAT3, in agreement with the idea that Fes can regulate transcriptional activation through Fes dependent phosphorylation of transcription factors.On the basis of these findings, we propose that Fes activation of critical transcriptional regulators such as PU.1 is part of the mechanism by which this kinase induces macrophage differentiation of myeloid progenitors.|We conclude that Fes may regulate granulocytic differentiation at least in part through activation of C/EBP-alpha and STAT3.In 32D cells, Fes activated STAT3 and C/EBP-alpha, two important regulators of granulocytic differentiation [14,15].

SIGNOR-278937

Q13131

Q8ND76

1

phosphorylation

up-regulates activity

0.2

Our in vitro and cellular analyses supported the mass spectrometry data that implicated serine 326 (S326) as the phospho-acceptor site on CCNY by AMPK. |Mechanistically the S326 phosphorylation by AMPK promotes the interaction of CCNY with CDK16, which in turn autophosphorylates S336, which serves as a marker for active CCNY-CDK16

SIGNOR-273011

P24941

Q13309

1

phosphorylation

up-regulates quantity by stabilization

0.799

The activity of SCF(Skp2) is regulated by the Cyclin-dependent kinase (CDK)2-mediated phosphorylation of Skp2 on Ser64 allows its expression in mid-G1 phase, even in the presence of active APC(Cdh1). Reciprocally, dephosphorylation of Skp2 by the mitotic phosphatase Cdc14B at the M --> G1 transition promotes its degradation by APC(Cdh1).

SIGNOR-249173

P15172

P53778

0

phosphorylation

up-regulates activity

0.446

We determined that p38-gamma directly phosphorylated MyoD on Ser199 and Ser200, which results in enhanced occupancy of MyoD on the promoter of myogenin together with markedly decreased transcriptional activity. Phosphorylation of MyoD by p38-γ directs the assembly of a repressive transcriptional complex at the Myogenin promoter.

SIGNOR-276273

P67809

P28482

0

phosphorylation

up-regulates activity

0.47

ERK2 may also directly phosphorylate YB-1 and therefore promotes its ability to transactivate target genes.

SIGNOR-279227

Q9UQC2

A7KAX9

1

relocalization

up-regulates

0.374

Gc-gap, a rho family gtpase-activating protein that interacts with signaling adapters gab1 and gab2we propose that gab1 and gab2 in cooperation with other adapter molecules might regulate the cellular localization of gc-gap under specific stimuli.

SIGNOR-102628

P15311

Q00535

0

phosphorylation

up-regulates activity

0.464

Increased ezrin expression and activation by CDK5 coincident with acquisition of the senescent phenotype.

SIGNOR-250665

P63244

P00519

0

phosphorylation

up-regulates

0.2

Phosphorylation of rack1 on tyrosine 52 by c-abl is required for insulin-like growth factor i-mediated regulation of focal adhesion kinase.Tyrosine 52 is further shown to be phosphorylated by c-abl kinase, and the c-abl inhibitor sti571 disrupts fak interaction with rack1

SIGNOR-185649

Q01082

P17612

0

phosphorylation

down-regulates activity

0.331

Short C-terminal splice variant of betaII-spectrin (betaIISigma2) is a substrate for phosphorylation. protein kinase A phosphorylates Thr-2159. Mammalian alphaII- and betaII-spectrin subunits form dimers that associate head to head with high affinity to form tetramers In vitro, protein kinase A phosphorylation of an active fragment of betaIISigma2 greatly reduced its interaction with alphaII-spectrin at the tetramerization site.

SIGNOR-250054

Q12933

Q9NQC7

0

deubiquitination

down-regulates activity

0.677

Cyld also interacts directly with tumour-necrosis factor receptor (tnfr)-associated factor 2 (traf2), an adaptor molecule involved in by members of the family of tnf/nerve growth factor receptors. (articolo-abstract)

SIGNOR-117860

P21333

P16298

0

dephosphorylation

down-regulates quantity by destabilization

0.2

Filamin is a phosphoprotein that organizes actin filaments into networks. We report that a purified C-terminal recombinant region of filamin is a suitable substrate for calcineurin |Mutagenesis analysis showed that a dephosphorylation step occurred in Ser 2152, which was previously shown to provide resistance to calpain cleavage when endogenous PKA is activated. In contrast, phosphorylation of Ser 2152 was recently reported to be necessary for membrane dynamic changes. In this regard, we found that CsA protects filamin in platelets from calpain degradation.

SIGNOR-248362

P48730

P17252

0

phosphorylation

up-regulates activity

0.2

In the present study we analyzed the CK1δ kinase domain for phosphorylation sites targeted by PKCα. Several phosphorylation sites were identified in vitro by initially using GST-CK1δ wild type and phosphorylation-site mutant protein fragments originating from the CK1δ kinase domain. Residues S53, T176, and S181 could finally be confirmed as targets for PKCα. Determination of kinetic parameters of full-length wild type and mutant GST-CK1δ-mediated substrate phosphorylation revealed that integrity of residue T176 is crucial for maintaining CK1δ kinase activity.

SIGNOR-277452

Q96EB6

P17861-2

1

deacetylation

down-regulates activity

0.379

P300 increases the acetylation and protein stability of XBP1s, and enhances its transcriptional activity, whereas SIRT1 deacetylates XBP1s and inhibits its transcriptional activity.. The mRNA encoding the active spliced form of XBP1 (XBP1s) is generated from the unspliced form by IRE1 (inositol-requiring enzyme 1) during the UPR.

SIGNOR-260430

Q6ZMG9

P68400

0

phosphorylation

up-regulates activity

0.2

Most of the phosphorylated residues conformed to a consensus motif for phosphorylation by casein kinase 2 (CK2), and treatment of cells with the CK2-specific inhibitor CX-4945 lowered the phosphorylation levels of CERS2, -4, -5, and -6. Phosphorylation of CERS2 was especially important for its catalytic activity, acting mainly by increasing itsVmaxvalue.

SIGNOR-273992

P23458

Q13261

0

null

up-regulates

0.462

Since Jak-STAT pathway primarily activated in IL-15-me- diated cell proliferation, we tested whether it is also participates in IL-15-mediated proliferation of FAPs. Interestingly, we found the expression of phospho-Jak3 and phospho-Tyk2, as well as their downstream, phospho- STAT3 and phospho-STAT5, was significantly upregulated

SIGNOR-256227

P23470

O75553

1

dephosphorylation

down-regulates activity

0.2

PTPRG activation by the P1-WD peptide affected the tyrosine phosphorylation of several signaling molecules. Data analysis identified 31 molecules whose phosphorylation was modified in a statistically significant manner (Table I). inhibition of ABL1, BMX, BTK, DAB1, ITGB1, JAK2, KDR, KIT, LIMK1, MET, PDGFRB, SHC1, and VCL correlates with tyrosine dephosphorylation. In contrast, SRC inhibition correlates with hyperphosphorylation of the inhibitory Tyr530 residue and with dephosphorylation of the activatory Tyr419. Moreover, CDK2 and CTTN inhibition correlates with a hyperphosphorylation of the inhibitory Tyr15 and Tyr470, respectively. In contrast, a subgroup of 13 proteins, including BLNK, DOK2, ERBB2, GRIN2B, INSR, PDGFRA, PRKCD, PXN, STAT1, STAT2, STAT3, STAT5A, and ZAP70, appears to be activated by PTPRG activity.

SIGNOR-254697

P61586

Q9P2F6

0

gtpase-activating protein

down-regulates activity

0.709

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-260472

O60674

Q92915

1

phosphorylation

up-regulates activity

0.2

JAK2 regulates Nav1.6 channel function via FGF14Y158 phosphorylation|Patch-clamp electrophysiology revealed that through Y158, JAK2 controls FGF14-dependent modulation of Nav1.6 channels. In hippocampal CA1 pyramidal neurons, the JAK2 inhibitor Fedratinib reduced firing by a mechanism that is dependent upon expression of FGF14.

SIGNOR-275747

P17252

Q12791

1

phosphorylation

up-regulates

0.2

Results showed that mutating s1076 altered the effect of pkc activation on bk(ca) channels in hek-293 cells

SIGNOR-186755

P46531

Q8IUQ4

0

relocalization

up-regulates

0.26

The overexpression of siah1 causes the re-localization of notch from the cell surface to the cytoplasm and to the nucleus, which is indicative of notch activation

SIGNOR-168460

P53350

P30622

1

phosphorylation

up-regulates

0.703

Furthermore, we provide evidence that plk1 phosphorylation of clip-170 at s195 enhances its association with ck2

SIGNOR-167172