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Q9Y6M0
O60216
1
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
P17612
Q02952
2
phosphorylation
up-regulates activity
0.2
Following receptor activation, gravin binding to the receptor increases, a process dependent upon PKA-catalyzed phosphorylation of two canonical PKA sites (Ser696–698 and Ser772) located within the AKAP domain of gravin.
SIGNOR-271844
P18031
Q9UKV8
1
dephosphorylation
down-regulates activity
0.2
Taken together, our results indicate that Tyr 393 of AGO2 is hyperphosphorylated in response to PTP1B inactivation and may contribute to H-RAS V12 -induced development of senescence.|We identified phospho-Tyr 393 of argonaute 2 (AGO2) as a direct substrate of PTP1B.
SIGNOR-277120
Q6IBW4
P54274
1
binding
up-regulates activity
0.2
Taken together these observations suggest that NCAPH2 promotes telomere stability, possibly through a direct interaction with the TRF1 shelterin component, and prevents telomere dysfunction resulting from impaired DNA replication.
SIGNOR-263914
Q14980
Q9BUF5
1
binding
up-regulates
0.2
Direct binding of numa to tubulin is mediated by a novel sequence motif in the tail domain that bundles and stabilizes microtubules.
SIGNOR-117109
Q9Y5I2
Q9Y5F9
1
binding
up-regulates activity
0.2
The clustered protocadherins comprise the largest subfamily of the cadherin superfamily and are predominantly expressed in the nervous system. Pcdh-alpha proteins interact with beta1-integrin to promote cell adhesion. They also form oligomers with Pcdh-gamma proteins at the same membrane sites.
SIGNOR-265706
Q9C0B5
Q15910
1
palmitoylation
down-regulates activity
0.2
Mechanistic investigations revealed that mutant p53 transcriptionally upregulated ZDHHC5 along with the nuclear transcription factor NF-Y. These events contributed to the development of glioma by promoting the self-renewal capacity and tumorigenicity of glioma stem-like cells, by altering the palmitoylation and phosphorylation status of the tumor suppressor EZH2.
SIGNOR-261144
O76039
O76039
2
phosphorylation
up-regulates activity
0.2
Furthermore, we show that CDKL5 can self-associate and mediate the phosphorylation of its own TEY (Thr-Glu-Tyr) motif.
SIGNOR-262289
Q92830
Q5TEC6
1
acetylation
down-regulates activity
0.2
The HAT module within the SAGA and ADA complexes acetylates histone H3, mainly on residues K9 and K14.
SIGNOR-269599
P07954
P15336
1
binding
up-regulates activity
0.2
Glucose deficiency induces AMPK activation, which phosphorylates FH at Ser75 and promotes its binding to ATF2 and the enrichment of the FH–ATF2 complex on the promoter regions of ATF2-targeted genes.
SIGNOR-266314
Q8TAS1
Q9BSJ6
1
phosphorylation
up-regulates
0.2
Cats is a substrate of kis and mapped the phosphorylation site to cats serine 131 (s131). Kis enhances the transcriptional repressor activity of cats
SIGNOR-192702
Q9BYU1
P55075
1
transcriptional regulation
down-regulates quantity by repression
0.2
Our results in ES cells suggest that Engrailed inhibits Fgf8 expression in the absence of Pbx1. We identified single Engrailed- and Pbx-binding sites in the Fgf8 intron that inhibit expression of Fgf8 in mouse ES cells, but that together can allow full Fgf8 expression. Our data support the model that Engrailed heterodimerized with Pbx might activate transcription, while Engrailed or Pbx proteins alone might repress transcription
SIGNOR-265806
Q9P286
Q9P286
2
phosphorylation
up-regulates activity
0.2
Active form of Cdc42, but not Rac1 and Rho, protein was able to activate the purified GST-Pak5 autophosphorylation and kinase activity. Mutations of Pak5, which disrupted the interaction of Cdc42 and Pak5, also abolished the induction of autophosphorylation.  The H19L/H22L mutant of Pak5 was insensitive to the Cdc42-induced autophosphorylation.
SIGNOR-250248
O60216
P04114
1
transcriptional regulation
down-regulates quantity
0.2
The promoter region of APOB bound RAD21 but not RAD21 p.622 Ala>Thr; expression of wild-type RAD21 in HEK293 cells repressed expression of APOB, compared with control vector.
SIGNOR-259974
Q9Y478
Q13586
1
phosphorylation
down-regulates activity
0.2
STIM1 is a novel exercise‐regulated AMPK substrate. Phosphorylation of STIM1 by AMPK suppresses SOCE
SIGNOR-277298
P43657
P19086
1
binding
up-regulates activity
0.2
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257120
P41162
P41162
2
transcriptional regulation
down-regulates quantity by repression
0.2
ETV3 target genes including etv3, ddx20, and dusp6 provide negative feedback regulation of ETV3 production and activity. Negative feedback along with constitutive instability may serve to tightly regulate ETV3 abundance. Our date suggest that phosphorylation by ERK2 relieves repression by ETV3, allowing activation of cell cycle control genes including myc, components of the NF-κB pathway, and genes required form RNA processing and translation.
SIGNOR-262778
O43791
O75367
1
binding
up-regulates activity
0.2
Here, we describe an E3 ubiquitin ligase consisting of SPOP and CULLIN3 that is able to ubiquitinate the PcG protein BMI1 and the variant histone MACROH2A1. BMI1 and MACROH2A1 interact with and are ubiquitinated by the CULLIN3 and SPOP ligase complex.
SIGNOR-272657
P27695
Q92911
1
transcriptional regulation
up-regulates quantity by expression
0.2
These data demonstrate a role for APE/Ref-1 protein in the transcriptional regulation of NIS gene expression by itself and in cooperation with PAX8. 
SIGNOR-261564
P17612
P16070
1
phosphorylation
up-regulates
0.2
Pka can phosphorylate ser316 directly cd44 s291a and s316a mutants may disrupt downstream signalling events by displacing endogenous cd44 from plasma membrane microdomains.
SIGNOR-147208
P42345
Q9BRS8
1
phosphorylation
up-regulates activity
0.2
Binding of La ribonucleoprotein domain family, member 6 (LARP6) to collagen mRNAs regulates their translation and is necessary for high type I collagen expression. Here we show that mTORC1 phosphorylates LARP6 on S348 and S409. The S348A/S409A mutant of LARP6 acts as a dominant negative protein in collagen biosynthesis, which retards secretion of type I collagen and causes excessive posttranslational modifications.
SIGNOR-273679
P31276
P55268
1
transcriptional regulation
up-regulates quantity by expression
0.2
The specificity of binding of these two proteins to the Lamin B2 origin is confirmed by both band-shift and in vitro footprinting assays. In addition, the ability of HOXC10 and HOXC13 to increase the activity of a promoter containing the 74 bp sequence, as assayed by CAT-assay experiments, demonstrates a direct interaction of these homeoproteins with the origin sequence in mammalian cells.
SIGNOR-261644
Q9UNE7
Q7Z2Y5
1
polyubiquitination
down-regulates quantity by destabilization
0.2
Our results indicate that Nrk is ubiquitinated by CHIP in a chaperone-dependent manner, resulting in its proteasomal degradation.
SIGNOR-274110
P49841
Q6NZ36
1
phosphorylation
down-regulates quantity
0.2
Furthermore, GSK3beta was able to decrease the cellular FAAP20 levels when overexpressed in wild-type, but not in FBW7 -/- HCT116 cells, indicating that GSK3beta requires downstream FBW7 to regulate the FAAP20 stability.|GSK3\u03b2 phosphorylates FAAP20 at Ser113.
SIGNOR-279048
Q12857
P15173
1
transcriptional regulation
up-regulates quantity by expression
0.2
NFIA binds to and activates the brown-fat-specific enhancers even before differentiation and later facilitates the binding of PPARgamma|NFIA has at least three functions on the transcriptional regulation of brown fat [2]. First, NFIA activates adipogenesis per se, through activating the transcription of Pparg, which encodes PPARgamma. Second, NFIA also activates the brown-fat-specific gene expression (such as Ucp1 and Ppargc1a) independent of the degree of adipocyte differentiation, through facilitating the binding of PPARgamma to the brown-fat-specific enhancers. Third, NFIA represses myogenesis through suppression of myogenic transcription factors such as Myod1 as well as Myog,
SIGNOR-263983
Q14493
P57053
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-265384
O43379
Q99759
2
relocalization
up-regulates activity
0.2
In the WT brain, the WDR62 scaffold organizes a protein complex including MEKK3, MKK4/7, and JNK1 to control NPC development during corticogenesis
SIGNOR-271717
Q8WV16
Q96CV9
1
binding
up-regulates activity
0.2
DCAF4-mediated ubiquitination of OPTN facilitates the degradation of DBR-exposed SOD1. OPTN is involved in degradation of DBR-exposed SOD1. These data demonstrate that DCAF4-including CRL4 complex mediates OPTN ubiquitination at lysine 501, and this ubiquitination is absent in the ALS-related OPTNmut.
SIGNOR-272210
P17948
P17948
2
phosphorylation
up-regulates
0.2
Receptor tyrosine phosphorylation is crucial for signal transduction by creating high affinity binding sites for src homology 2 domain-containing molecules. By expressing the intracellular domain of flt-1/vascular endothelial growth factor receptor-1 in the baculosystem, we identified two major tyrosine phosphorylation sites at tyr-1213 and tyr-1242 and two minor tyrosine phosphorylation sites at tyr-1327 and tyr-1333 in this receptor.
SIGNOR-59762
Q9NYL2
O14733
1
phosphorylation
up-regulates activity
0.2
We show here that members of the mixed-lineage kinase (MLK) family (including MLK1, MLK2, MLK3, and dual leucine zipper kinase [DLK]) are expressed in neuronal cells and are likely to act between Rac1/Cdc42 and MKK4 and -7 in death signaling.
SIGNOR-243345
Q13627
P78559
1
phosphorylation
up-regulates activity
0.2
The phosphorylation of MAP1A and MAP2 by Dyrk1A was further confirmed by immunoprecipitating these proteins from the soluble fraction obtained after phosphorylating MTs (XREF_FIG).
SIGNOR-279032
P12931
Q96J92
1
phosphorylation
down-regulates activity
0.2
Using Western blot and mass spectrometry, we now identify three sites in WNK4 that are phosphorylated by c-Src: Tyr(1092), Tyr(1094), and Tyr(1143), and show that both c-Src and protein tyrosine phosphatase type 1D (PTP-1D) coimmunoprecipitate with WNK4. 
SIGNOR-276897
P07332
P07332
2
phosphorylation
up-regulates
0.2
Substitution of kinase domain tyrosine residues 713 or 811 with phenylalanine resulted in a loss of the 10- and 4-kda phosphopeptides, respectively, identifying these tyrosines as in vitro autophosphorylation sites. Cnbr cleavage analysis of fes isolated from 32po4-labeled 293t cells showed that tyr-713 and tyr-811 are also autophosphorylated in vivo. . Mutagenesis of tyr-713 reduced both autophosphorylation of tyr-811 and transphosphorylation of bcr, a recently identified fes substrate, supporting a major regulatory role for tyr-713.
SIGNOR-42655
P45984
P31947
1
phosphorylation
down-regulates
0.2
Jnk phosphorylates 14-3-3zeta_ at ser-184 and 14-3-3sigma_ at ser-189
SIGNOR-124027
Q9HC97
Q03113
1
binding
up-regulates activity
0.2
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257204
Q14938
Q9HD90
1
transcriptional regulation
up-regulates quantity
0.2
For example, within the NFI targetome, we identified 6 collagen genes, 13 genes encoding potassium channel or glutamate receptor subunits and a range of factors related to axon guidance (e.g. Slit1, Robo1, Epha4, Epha5, Epha8)
SIGNOR-268905
P51812
O14649
1
phosphorylation
up-regulates activity
0.2
The chaperone protein, 14-3-3, binds to a critical phosphorylated serine in the channel c termini of k2p3.1 and k2p9.1 (ser(393) and ser(373), respectively) and overcomes retention in the endoplasmic reticulum by ?COP. We sought to identify the kinase responsible for phosphorylation of the terminal serine in human and rat variants of k2p3.1 and k2p9.1. Adopting a bioinformatic approach, three candidate protein kinases were identified: camp-dependent protein kinase, ribosomal s6 kinase, and protein kinase c.
SIGNOR-172470
P28482
P28482
2
phosphorylation
up-regulates activity
0.2
Microtubule-associated protein 2 kinases, ERK1 and ERK2, undergo autophosphorylation on both tyrosine and threonine residues: implications for their mechanism of activation.|
SIGNOR-249415
P00558
P00558
2
phosphorylation
up-regulates activity
0.2
PGK1 functions not only as a glycolytic enzyme but also as a protein kinase intermolecularly autophosphorylating itself at Y324 for activation. 
SIGNOR-277482
Q13188
P42336
1
phosphorylation
down-regulates activity
0.2
MST1/2 and HGK inhibit catalytic activity of p110α through phosphorylation at T1061 
SIGNOR-277922
P10721
P35232
1
phosphorylation
up-regulates activity
0.2
In this study, we showed that c-Kit associates with PHB to upregulate phospho-PHB in the lipid raft of the plasma membrane.|c-Kit phosphorylates PHB at the Tyr259 residue.
SIGNOR-278362
Q5SQI0
Q9H853
1
acetylation
up-regulates quantity by stabilization
0.2
Alpha-Tubulin acetyltransferase (alphaTAT1) is the major α-tubulin lysine-40 (K40) acetyltransferase in mammals, nematodes, and protozoa, and its activity plays a conserved role in several microtubule-based processes.|The tubulin subunits of microtubules are acetylated, and lysine-40 (K40) of the alpha-tubulin subunit has been identified as an important conserved site of microtubule acetylation (6–8). This modification is considered a hallmark of stable, long-lived microtubules
SIGNOR-272252
Q13131
O14929
1
phosphorylation
up-regulates activity
0.2
Together, these results indicate that AMPK phosphorylated DNMT1-Ser730, RBBP7-Ser314, and HAT1-Ser190|AMPK increased HAT1 activity through phosphorylation of HAT1-Ser190 and RBBP7-Ser314
SIGNOR-264782
Q86YJ5
P18433
1
ubiquitination
down-regulates quantity by destabilization
0.2
MARCH9, a member of the RING-CH family of transmembrane E3 ubiquitin ligases, down-regulates CD4, major histocompatibility complex-I (MHC), and ICAM-1 in lymphoid cells. To identify novel MARCH9 substrates, we used high throughput flow cytometry and quantitative mass spectrometry by stable isotope labeling by amino acids in cell culture (SILAC) to determine the differential expression of plasma membrane proteins in a MARCH9-expressing B cell line. This combined approach identified 13 potential new MARCH9 targets. 
SIGNOR-271540
Q96LB2
P38405
1
binding
up-regulates activity
0.2
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-256929
Q13557
Q14654
1
phosphorylation
down-regulates
0.2
Results showed that activation of camkii triggered dynamin-dependent internalization of k(atp) channels. This process required phosphorylation of threonine at 180 and 224 and an intact (330)yskf(333) endocytosis motif of the k(atp) channel kir6.2 pore-forming subunit.
SIGNOR-200027
Q05655
Q00535
1
phosphorylation
down-regulates activity
0.2
This generates a binding site for the C2 domain of PKCδ, which in turn phosphorylates CDK5 on T77. The resulting dissociation of the CDK5R1/CDK5 complex abolishes the activity of CDK5. 
SIGNOR-277386
P33981
P27816
1
phosphorylation
down-regulates quantity by destabilization
0.2
We further uncovered that Mps1 is a kinase of MAP4, and E7-MAP4 binding blocks Mps1 phosphorylation of MAP4, thereby interrupting phosphorylation-dependent MAP4 degradation. 
SIGNOR-277458
Q9NRC8
Q71DI3
1
deacetylation
up-regulates activity
0.2
SIRT7 links H3K18 deacetylation to maintenance of oncogenic transformation.|Genome-wide binding studies reveal that SIRT7 binds to promoters of a specific set of gene targets, where it deacetylates H3K18Ac and promotes transcriptional repression.
SIGNOR-275875
Q9BY66
Q16695
1
demethylation
up-regulates activity
0.2
KDM5 subfamily is capable of removing tri‐ and di‐ methyl marks from lysine 4 on histone H3 (H3K4). Depending on the methylation site, its effect on transcription can be either activating or repressing.
SIGNOR-264309
P49841
Q9GZV5
1
phosphorylation
down-regulates quantity by destabilization
0.2
GSK3 destabilizes TAZ. TAZS58A/S62A but not the TAZ S66A mutant diminished phos- phorylation by GSK3 , suggesting that Ser-58 and Ser-62 are important for GSK3  phosphorylation, whereas the Ser-66 is not (Fig. 4D).
SIGNOR-277646
Q9Y5H9
P05556
1
binding
up-regulates activity
0.2
The clustered protocadherins comprise the largest subfamily of the cadherin superfamily and are predominantly expressed in the nervous system. Pcdh-alpha proteins interact with beta1-integrin to promote cell adhesion.
SIGNOR-265661
P00450
Q99835
1
binding
down-regulates
0.2
Genetic and biochemical studies imply that smo can adopt an active conformation but that it is normally repressed by patched (ptch), a 12-transmembrane protein considered the receptor for hh
SIGNOR-148451
P49336
P68431
1
phosphorylation
down-regulates activity
0.2
However, within T/G-Mediator, cdk8 phosphorylates serine-10 on histone H3, which in turn stimulates H3K14 acetylation by GCN5L within the complex. Tandem phosphoacetylation of H3 correlates with transcriptional activation, and ChIP assays demonstrate co-occupancy of T/G-Mediator components at several activated genes in vivo.
SIGNOR-273171
Q9NRM7
P11908
1
phosphorylation
down-regulates quantity by destabilization
0.2
 Recruitment of TRAF2 to PRPS1/2 requires phosphorylation of PRPS1 S285 or PRPS2 T285, which is mediated by low stiffness-activated large tumor suppressor (LATS)1/2 kinases.LATS1/2-dependent S/T285 phosphorylation is required for PRPS1/2 ubiquitination and degradation at low stiffness.
SIGNOR-276507
P25098
P18545
1
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
O15075
Q6ZN28
1
phosphorylation
up-regulates activity
0.2
Subsequently, MACC1 gets phosphorylated by DCLK1.|This might be attributed to the higher activation of MACC1 by DCLK1 in the MACC1-positive cell lines SW620/Control and SW480/MACC1 used in this study.
SIGNOR-279031
Q9UQM7
Q04760
1
phosphorylation
up-regulates activity
0.2
This study is able to show that a phosphorylation of threonine-107 (T107) in the (rate-limiting) Glyoxalase 1 (Glo1) protein, mediated by Ca2+/calmodulin-dependent kinase II delta (CamKIIδ), is associated with elevated catalytic efficiency of Glo1 (lower KM; higher Vmax).
SIGNOR-273553
Q9UGJ0
Q13586
1
phosphorylation
down-regulates activity
0.2
STIM1 is a novel exercise‐regulated AMPK substrate. Phosphorylation of STIM1 by AMPK suppresses SOCE
SIGNOR-277297
O14904
P02708
1
binding
up-regulates
0.2
We identified five wnts (wnt9a, wnt9b, wnt10b, wnt11, and wnt16) that are able to stimulate achr clustering, of which wnt9a and wnt11 are expressed abundantly in developing muscles.
SIGNOR-195972
Q6ZNL6
P63000
1
guanine nucleotide exchange factor
up-regulates activity
0.2
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-260555
O00755
Q13309
1
binding
down-regulates activity
0.2
These findings suggested that Wnt7a upregulated P21 and P27 by inactivating SKP2.
SIGNOR-278876
O60260
P42566
1
ubiquitination
up-regulates
0.2
Treatment of cells with egf stimulates parkin binding to both eps15 and the egfr and promotes parkin-mediated ubiquitination of eps15
SIGNOR-148218
Q13049
Q86U86
1
ubiquitination
down-regulates quantity by destabilization
0.2
TRIM32 ubiquitination of PB1 leads to its protein degradation.
SIGNOR-278735
Q92830
P19174
1
acetylation
down-regulates activity
0.2
The histone acetyltransferase GCN5 (general control non-repressed protein 5) acetylates PGC-1alpha and suppresses its transcriptional activity, whereas sirtuin 1 deacetylates and activates PGC-1alpha.
SIGNOR-275498
P68400
Q8N5B7
1
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-273987
P07948
P53396
1
phosphorylation
up-regulates activity
0.2
 We demonstrate the binding of PIP2 to the CoA-binding domain of ACLY and identify the six tyrosine residues of ACLY that are phosphorylated by Lyn. Three of them (Y682, Y252, Y227) can be also phosphorylated by Src and they are located in catalytic, citrate binding and ATP binding domains, respectively. PI3K and Lyn inhibitors reduce the ACLY enzyme activity, ACLY-mediated Acetyl-CoA synthesis, phospholipid synthesis, histone acetylation and cell growth. Thus, PIP2/PIP3 binding and Src tyrosine kinases-mediated stimulation of ACLY links oncogenic pathways to Acetyl-CoA-dependent pro-growth and survival metabolic pathways in cancer cells.
SIGNOR-274105
Q9P286
Q9ULA0
1
phosphorylation
down-regulates quantity by destabilization
0.2
We show that PAK5 interacts with and phosphorylates DNPEP at serine 119. | PAK5 decreases DNPEP abundance via the ubiquitin-proteasome pathway.
SIGNOR-275651
Q9UBS0
Q05195
1
phosphorylation
down-regulates
0.2
In this study, we showed that mad1 is a substrate of p90 ribosomal kinase (rsk) and p70 s6 kinase (s6k). Both rsk and s6k phosphorylate serine 145 of mad1 upon serum or insulin stimulation. Ser-145 phosphorylation of mad1 accelerates the ubiquitination and degradation of mad1 through the 26s proteasome pathway
SIGNOR-178594
Q8IYT4
Q9UJT0
1
binding
down-regulates quantity by destabilization
0.2
KATNAL2 does not sever microtubules composed of α- and β-tubulin but does interact with δ- and ε-tubulin
SIGNOR-267176
Q92793
Q9UBR4
1
binding
up-regulates activity
0.2
Transcription of pituitary alpha-glycoprotein hormone subunit (alpha-GSU) and thyrotropin beta subunit (TSH-beta) genes is stimulated by thyrotropin-releasing hormone (TRH). P-Lim and CBP Act Synergistically in TRH Stimulation of the Human α-GSU Promoter.
SIGNOR-267206
Q13976
Q9HCX4
1
phosphorylation
up-regulates activity
0.2
In vitro and in vivo kinase assays have revealed that cGK-Iα phosphorylates mouse TRPC7 but not mouse TRPC3. Site-directed mutagenesis analysis revealed that TRPC7 was phosphorylated by cGK-Iα at threonine 15. Phosphorylation of TRPC7 significantly suppressed carbachol-induced calcium influx and CREB phosphorylation. These data indicate that cGK-Iα interacts with and phosphorylates TRPC7, contributing to the quick and accurate regulation of calcium influx and CREB phosphorylation.
SIGNOR-263184
Q96P68
O95837
1
binding
up-regulates activity
0.2
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257417
P29317
P29317
2
phosphorylation
up-regulates
0.2
The binding of ephrin ligands to eph receptors induces the transphosphorylation of the cytoplasmic domains and initiates kinase activity.Taken together, these results suggest that tyr587, tyr593, tyr771, and tyr734 are likely to be autophospho-rylated in vascular endothelial cells.
SIGNOR-178169
P19784
Q8N163
1
phosphorylation
up-regulates activity
0.2
CK2alphawas bound to DBC1 and phosphorylated DBC1. The phosphorylation of DBC1 by CK2alphawas evidenced by co-immunoprecipitation of CK2alphaand DBC1 in a GST pull-down assay, an in vitro kinase assay, and immunofluorescence staining. |In our results, CK2alpha affected the|These results suggest that DBC1 may be involved in the progression of gastric carcinoma by inducing the EMT and that it is closely associated with CK2alpha-mediated phosphorylation of DBC1. phosphorylation of Thr454 on DBC1
SIGNOR-267667
Q9NX47
O00429
1
polyubiquitination
down-regulates quantity by destabilization
0.2
We found that MITOL associated with and ubiquitinated mitochondrial fission protein hFis1 and Drp1.Pulse–chase experiment also indicated that MITOL overexpression promoted Drp1 turnover.
SIGNOR-271894
P68400
Q9HA82
1
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-273984
Q9UQM7
Q06210
1
phosphorylation
up-regulates
0.2
Amp-activated protein kinase and calcium/calmodulin-dependent kinase ii were identified to phosphorylate specifically ser243 in vitro. Phosphorylation by these two kinases results in an increase of enzymatic activity by 1.4-fold. These findings suggest for the first time that hgfat1 may be regulated by kinases other than pka.
SIGNOR-158486
Q5JTC6
Q9HCP0
1
binding
up-regulates
0.2
Amer1 binds ck1gamma, recruits axin and gsk3beta to the plasma membrane and promotes complex formation between axin and lrp6.
SIGNOR-171889
P78527
Q8TCS8
1
phosphorylation
up-regulates activity
0.2
We also demonstrated that DNAPK phosphorylates PNPase at Ser-776, which is critical for its ribonuclease activity.
SIGNOR-263182
Q86UZ6
P23219
1
transcriptional regulation
up-regulates quantity by expression
0.2
ZBTB46 acts as a transcriptional coactivator that binds to the promoter of prostaglandin-endoperoxide synthase 1 (PTGS1) and transcriptionally regulated PTGS1 levels.
SIGNOR-277991
Q92914
Q14524
1
binding
down-regulates activity
0.2
Sodium channel fast inactivation is modulated by alpha subunit interaction with a family of cytoplasmic proteins termed fibroblast growth factor homologous factors (FHFs). In this paper, we report that all A-type FHFs exert rapid onset long-term inactivation on Nav1.6 and other sodium channels.
SIGNOR-253418
O75385
O60260
1
phosphorylation
up-regulates activity
0.2
Furthermore, the Parkin band shift induced by catalytically active WT ULK1 was diminished by treatment of cell lysates with lambda-phosphatase, as was the mobility of ULK1 itself (XREF_FIG).|Parkin is phosphorylated by ULK1 at Ser 108 in its recently described nine amino acid ACT element at this early time point
SIGNOR-279663
Q9HCK8
P11137
1
transcriptional regulation
down-regulates quantity
0.2
Many of the most significantly up-regulated genes in Chd8+/− and Chd8−/− NPCs are involved in later stages of neuronal development, including Ascl1 [a central driver of neural reprogramming (29)], Dcx, Map2, Nefm, Neurod4, and Neurog1 (Fig. 2 E and F). Additionally, we found that Sox3 is derepressed in both Chd8+/− and Chd8−/− NPCs, and several other Sox TF members (Sox2, Sox7, and Sox11) became derepressed in the Chd8−/− cells
SIGNOR-268916
P54762
P45985
1
relocalization
up-regulates activity
0.2
The phosphorylated CNK1 interacts with ephrinB1. The binding of ephrinB1 to CNK1 connects RhoA and p115RhoGEF with ephrinB1-associated MKK4, promoting JNK activation and cell migration.
SIGNOR-275922
O43318
Q5SQI0
1
phosphorylation
up-regulates activity
0.2
Here we report TGF-beta-activated kinase 1 (TAK1) as a key activator of alphaTAT1. TAK1 directly interacts with and phosphorylates alphaTAT1 at Ser237 to critically enhance its catalytic activity
SIGNOR-272243
P53355
P98161
1
phosphorylation
up-regulates activity
0.2
In addition, the tumor suppressor death-associated protein kinase phosphorylates and activates PKD1 in response to oxidative damage ( xref ).
SIGNOR-279985
Q14289
Q86X29
1
phosphorylation
up-regulates activity
0.2
Pyk2 enhances LSR and tricellulin localization to tTJs.|Pyk2-dependent phosphorylation of LSR enhances localization of LSR and tricellulin at tricellular tight junctions.
SIGNOR-280101
Q9BPV8
Q03113
1
binding
up-regulates activity
0.2
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257231
Q63HK5
Q13547
1
relocalization
up-regulates activity
0.2
We carried out yeast two-hybrid studies with a PTB domain of FE65, focusing on those genes that might be involved in nuclear signaling, and identified and validated Teashirt proteins as FE65 interacting proteins in neurons. Using reporter systems, we observed that FE65 could simultaneously recruit SET, a component of the inhibitor of acetyl transferase, and Teashirt, which in turn recruited histone deacetylases, to produce a powerful gene-silencing complex.Endogenous HDAC1 was co-immunoprecipitated with FE65 when both FE65 and Teashirt3 were co-transfected (lane 4), but not when Teashirt3 or FE65 was omitted (lane 5 and 6), confirming that the association of HDAC1 with FE65 is dependent on, and mediated, by Teashirt3.
SIGNOR-264814
P68400
P49959
1
phosphorylation
up-regulates activity
0.2
Here we show that MRE11 directly interacts with PIH1D1, a subunit of heat-shock protein 90 cochaperone R2TP complex, which is required for the assembly of large protein complexes, such as RNA polymerase II, small nucleolar ribonucleoproteins and mammalian target of rapamycin complex 1. The MRE11-PIH1D1 interaction is dependent on casein kinase 2 (CK2) phosphorylation of two acidic sequences within the MRE11 C terminus containing serines 558/561 and 688/689.
SIGNOR-265893
P35637
Q9Y566
1
post transcriptional regulation
up-regulates quantity
0.2
These results point toward a novel mechanism by which FUS targets neuronal mRNA and given that these PSD-95 and Shank1 3'-UTR G quadruplex structures are also targeted by the fragile X mental retardation protein (FMRP), they raise the possibility that FUS and FMRP might work together to regulate the translation of these neuronal mRNA targets.|As seen in Figure 7 (top panel), both PSD-95 Q1-Q2 and Shank1a GQ probes pulled down endogenous FUS, whereas their M2 mutants did not, indicating that the GQ structure is sufficient for recognition.
SIGNOR-262104
P68400
Q99250
1
phosphorylation
up-regulates activity
0.2
We found that the ankyrin-binding motif of Na(v)1.2 that determines channel concentration at the AIS depends on a glutamate residue (E1111), but also on several serine residues (S1112, S1124, and S1126). We showed that phosphorylation of these residues by protein kinase CK2 (CK2) regulates Na(v) channel interaction with ankyrins. | inhibition of CK2 activity reduced sodium channel accumulation at the AIS of neurons. In conclusion, CK2 contributes to sodium channel organization by regulating their interaction with ankyrin G.
SIGNOR-275761
P41231
Q14344
1
binding
up-regulates activity
0.2
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257233
Q96P68
P09471
1
binding
up-regulates activity
0.2
Here we systematically quantified ligand-induced interactions between 148 GPCRs and all 11 unique G alpha subunit C-termini. For each receptor, we probed chimeric G alpha subunit activation via a transforming growth factor-alpha (TGF alpha) shedding response in HEK293 cells lacking endogenous Gq/11- and G12/13- signaling. | We defined positive coupling if any member of the subfamily scored LogRAi ≥ -1 and negative coupling if all of the members scored LogRAi < -1 (Figure 3A-B). ROC analysis gives AUC = 0.78 (Figure S4A) when considering high-confidence known coupling data and suggested a threshold of LogRAi ≥ -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ≥ -1.0.
SIGNOR-257243
P05771
Q05639
1
phosphorylation
up-regulates activity
0.2
PKCβI phosphorylates eEF1A at Ser53.our proteomics exploration of cPKC signaling in the nuclei of C2C12 cells demonstrated that the up-regulation of eEF1A intranuclear content, evoked by insulin, is associated with an increase in the phosphorylation of the Ser53 residue of the protein.
SIGNOR-263166
Q9BY78
Q86WV6
1
ubiquitination
up-regulates activity
0.2
As a result, knockdown of RNF26 promoted degradation of MITA after viral infection and prevented degradation of IRF3.|In addition, RNF26 could not induce polyubiquitination of MITA (K150R) in in vitro ubiquitination assays (XREF_FIG).
SIGNOR-278573
O14965
Q96CG3
1
phosphorylation
up-regulates activity
0.2
Here, we report that Aurora A is essential for Thr9 phosphorylation of the TRAF-interacting protein TIFA, triggering activation of the NF-κB survival pathway in AML. 
SIGNOR-273551
Q8IVH8
P46940
1
phosphorylation
up-regulates activity
0.2
GLK directly phosphorylated IQGAP1 at Ser-480 enhancing Cdc42 activation and subsequent cell migration. 
SIGNOR-277479
Q9Y5H9
Q9Y5G4
1
binding
up-regulates activity
0.2
The clustered protocadherins comprise the largest subfamily of the cadherin superfamily and are predominantly expressed in the nervous system. Pcdh-alpha proteins interact with beta1-integrin to promote cell adhesion. They also form oligomers with Pcdh-gamma proteins at the same membrane sites.
SIGNOR-265678