IdA
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IdB
string
labels
int64
mechanism
string
effect
string
score
float64
sentence
string
signor_id
string
P27361
P05976
1
phosphorylation
up-regulates
0.287
Activation of raf/mek/erk cascade can also result in the phosphorylation of the antiapoptotic mcl-1 protein and the pro-apoptotic bim protein.
SIGNOR-148002
Q14493
P0C5Y9
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-265411
P49840
Q14596
1
phosphorylation
down-regulates activity
0.322
The autophagy receptor NBR1 (neighbor of BRCA1 gene 1) binds UB/ubiquitin and the autophagosome-conjugated MAP1LC3/LC3 (microtubule-associated protein 1 light chain 3) proteins, thereby ensuring ubiquitinated protein degradation|Here we show that NBR1 is a substrate of GSK3. NBR1 phosphorylation by GSK3 at Thr586 prevents the aggregation of ubiquitinated proteins and their selective autophagic degradation.
SIGNOR-261794
P06400
Q13131
0
phosphorylation
down-regulates
0.2
Amp-activated protein kinase phosphorylates retinoblastoma protein. Rb phosphorylation sites, ser804 (ser811 in human), resembled the ampk consensus phosphorylation site.
SIGNOR-184052
P23258
Q8TDC3
0
phosphorylation
up-regulates
0.248
Sadb kinases associate and phosphorylate gamma-tubulin on ser 131 s131d gamma-tubulin expression amplifies centrosome duplication
SIGNOR-187405
P35398
P48664
1
transcriptional regulation
up-regulates quantity by expression
0.251
RORα regulates the expression of several genes in Purkinje cells. RORα becomes highly expressed in postmitotic Purkinje cells. It regulates their maturation, particularly dendritic differentiation. Dendritogenesis and the expression of several genes, including Shh, Itpr1, Pcp4, Calb1, Pcp2, and Slc1a6, normally expressed in mature Purkinje cells, are inhibited in RORα-deficient mice.
SIGNOR-266850
Q96EB6
Q9UBK2
1
deacetylation
up-regulates activity
0.799
SIRT1 overexpression reduces muscle wasting by blocking the activation of FoxO1 and 3 SIRT1 activation has been reported to increase dramatically endurance exercise through the activation of PGC-1_ in muscle, which stimulates fatty acid oxidation
SIGNOR-217963
P22392
O15554
1
phosphorylation
up-regulates
0.419
We previously showed that nucleoside diphosphate kinase beta (ndpk-b), a mammalian histidine kinase, is required for kca3.1 channel activation in human cd4 t lymphocytes.
SIGNOR-181083
P18848
P49588
1
transcriptional regulation
up-regulates quantity by expression
0.2
QRICH1 promotes the expression of translation-related genes. our combined ChIP-seq and RNA-seq analyses identified that QRICH1 and ATF4 were enriched at the promoters of these specific tRNA synthetases, and that ER stress positively regulated their transcription (Fig. 4I). Together, these findings suggest that QRICH1 and ATF4 modulate tRNA metabolic processes to promote secreted protein synthesis during ER stress.
SIGNOR-269414
P17252
P26927
0
phosphorylation
up-regulates activity
0.2
Thus, the phosphorylation of PKCα at Ser226 and Thr228 by Mst1 and Mst2 is required for the optimal activation of PKCα. 
SIGNOR-277179
Q00535
Q96QB1
1
phosphorylation
up-regulates activity
0.2
The CDK5 kinase phosphorylates four serines in DLC1 located N-terminal to the Rho-GAP domain. When not phosphorylated, this N-terminal region functions as an autoinhibitory domain that places DLC1 in a closed, inactive conformation by efficiently binding to the Rho-GAP domain. CDK5 phosphorylation reduces this binding and orchestrates the coordinate activation DLC1, including its localization to focal adhesions, its Rho-GAP activity, and its ability to bind tensin and talin. 
SIGNOR-276444
Q7LBC6
P84243
1
demethylation
down-regulates activity
0.2
We have purified a JmjC domain-containing protein, JHDM2A, which specifically demethylates mono- and dimethyl-H3K9. JHDM2A exhibits hormone-dependent recruitment to androgen-receptor target genes, resulting in H3K9 demethylation and transcriptional activation. Thus, our work identifies a histone demethylase and links its function to hormone-dependent transcriptional activation.
SIGNOR-266636
P36894
O15169
0
ubiquitination
down-regulates
0.331
Other proteins, such as the serine/threonine kinase fused (fu), can function in concert with the e3 ligase smurf to regulate ubiquitination and proteolysis of the bmp receptor
SIGNOR-195552
P18858
P24941
0
phosphorylation
up-regulates activity
0.457
We show that three residues (ser51, ser76, and ser91), which are part of cyclin-dependent kinase sites, are phosphorylated in a cell cycle-dependent manner.
SIGNOR-103254
O14757
P43405
1
phosphorylation
down-regulates
0.311
We found that chk1 phosphorylated the tumor suppressor spleen tyrosine kinase (l) (syk[l]) and identified the phosphorylation site at ser295. Furthermore, chk1 phosphorylation of syk(l) promoted its subsequent proteasomal degradation.
SIGNOR-197528
P49354
P01112
1
null
up-regulates activity
0.413
Major investments have been made to target Ras through indirect routes. Inhibition of farnesyl transferase to block Ras maturation has failed in large clinical trials.
SIGNOR-242568
Q15173
P42574
1
dephosphorylation
up-regulates
0.2
Dephosphorylation of caspase-3 at ser150 site by pp2a increased caspase-3 activity,which was essential to trigger apoptosis in neutrophils.
SIGNOR-131435
P35222
Q92729
0
dephosphorylation
down-regulates activity
0.4
Protein tyrosine phosphatase receptor U (PTPRU) has been shown to be a tumor suppressor in colon cancer by dephosphorylating \u03b2-catenin and reducing the activation of \u03b2-catenin signaling.
SIGNOR-277095
O94856
Q01484
1
relocalization
up-regulates quantity
0.694
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-266716
Q9GZM8
P06493
0
phosphorylation
up-regulates activity
0.66
In this case, only NudelS2 and NudelS5 were phosphorylated. Therefore, T219, S242, and T245 of Nudel were phosphorylation sites of Cdc2 in vitro. In contrast, Erk2 only phosphorylated T219 and T245. These two sites, with surrounding sequences such as PATP from residues 217 to 220 and PLTP from 243 to 246, respectively, are indeed typical MAPK sites
SIGNOR-274074
P23467
Q02763
1
dephosphorylation
down-regulates activity
0.555
Simultaneous inhibition of Tie2 cleavage and VE-PTP synergistically enhances Tie2 activation by up to 10-fold (Fig. 7A).|Tie2 activation is also importantly regulated by vascular endothelial protein tyrosine phosphatase (VE-PTP), which dephosphorylates Tie2 to inhibit its vascular stabilizing effects  .|Tie2 activation is also importantly regulated by vascular endothelial protein tyrosine phosphatase (VE-PTP), which dephosphorylates Tie2 to inhibit its vascular stabilizing effects.
SIGNOR-277059
Q13485
Q15797
0
phosphorylation
up-regulates
0.671
Whereas alk5 signalling is mediated by phosphorylation of smad2 and smad3 proteins, alk1 signalling is mediated by smad1, smad5, and smad8. Activated smads form a complex with the common(co-Smad; Smad4 in mammals) and shuttle into the nucleus.
SIGNOR-168734
Q13316
Q8IXL6
0
phosphorylation
up-regulates quantity
0.659
Fam20c knockdown decreased Dmp1 mRNA and increased Fgf23 mRNA in UMR-106 cells.|Relative migration distances of OPN and DMP1, which were the ratio of the migration distances of OPN or DMP1 co-expressed with mutant FAM20C to that with WT FAM20C, showed that only WT FAM20C could fully phosphorylate OPN and DMP1.
SIGNOR-280011
P00533
P17706
0
dephosphorylation
down-regulates
0.635
Here, we report that the 45-kda variant of the protein tyrosine phosphatase tcptp (tc45) can recognize delta egfr as a cellular substrate
SIGNOR-132316
Q9HB75
Q13315
0
phosphorylation
up-regulates activity
0.636
ATM phosphorylates PIDD on Thr788 within the DD. This phosphorylation is necessary and sufficient for RAIDD binding and caspase-2 activation. Conversely, nonphosphorylatable PIDD fails to bind RAIDD or activate caspase-2, and engages prosurvival RIP1 instead. Thus, ATM phosphorylation of the PIDD DD enables a binary switch through which cells elect to survive or die upon DNA injury.
SIGNOR-262640
P04637
Q96EB6
0
deacetylation
down-regulates
0.803
Sirt1 has been shown to regulate cell fate in part by deacetylating the p53 protein at lysine 382 and inhibiting p53-mediated transcriptional activation and apoptosis.
SIGNOR-182515
P53350
P36956
1
phosphorylation
up-regulates activity
0.441
As illustrated in , the turnover of nuclear SREBP1a was attenuated in the presence of Plk1, confirming that Plk1 stabilizes nuclear SREBP1 by reducing its degradation.|Figure 2.Plk1 phosphorylates threonine 424, serine 467 and serine 486 in nuclear SREBP1 during mitosis. (A) In vitro kinase assay with recombinant nuclear SREBP1a and Plk1.
SIGNOR-279382
O75688
Q02962
1
dephosphorylation
down-regulates activity
0.2
PPM1B can dephosphorylate the Pax2 activation domain and displace the adaptor protein PTIP, thus inhibiting H3K4 methylation and gene activation
SIGNOR-251712
P49841
P06401
1
phosphorylation
down-regulates quantity by destabilization
0.277
Here, we have found that glycogen synthase kinase (GSK)-3β phosphorylation of progesterone receptor-A (PR-A) facilitates its ubiquitination. GSK-3β-mediated phosphorylation of serine 390 in PR-A regulates its subsequent ubiquitination and protein stability.
SIGNOR-276498
P11137
Q9P0L2
0
phosphorylation
down-regulates activity
0.418
Here we show that p110mark phosphorylates analogous KXGS sites in the microtubule binding domains of the neuronal MAP2 and the ubiquitous MAP4. Phosphorylation in vitro leads to the dissociation of MAP2 and MAP4 from microtubules and to a pronounced increase in dynamic instability.
SIGNOR-250166
P48163
Q8N6T7
0
deacetylation
down-regulates activity
0.25
PGAM5-mediated dephosphorylation of malic enzyme 1 (ME1) at S336 allows increased ACAT1-mediated K337 acetylation, leading to ME1 dimerization and activation, both of which are reversed by NEK1 kinase-mediated S336 phosphorylation. SIRT6 deacetylase antagonizes ACAT1 function in a manner that involves mutually exclusive ME1 S336 phosphorylation and K337 acetylation.
SIGNOR-275572
O14503
P63279
0
polyubiquitination
down-regulates quantity by destabilization
0.326
 Co-expression of STRA13 and UBC9 led to an increase of the pSTRA13 ubiquitination and subsequent degradation. These data established that UBC9/STRA13 association in cells is of physiological importance, presenting direct proof of UBC9 involvement in the ubiquitin-dependent degradation of pSTRA13. We also checked whether UBC9 is directly involved in pSTRA13 ubiquitination. Taken together, these results strongly suggest that pSTRA13 is targeted for proteolysis by the ubiquitin-dependent proteasome pathway through association with UBC9.
SIGNOR-272579
P35813
Q04206
1
dephosphorylation
down-regulates activity
0.353
23 Here we show that PPM1A directly dephosphorylated RelA at S536 and S276, with resultant inhibition of NF-kappaB transactivation and decreased expression of target genes, notably including MCP-1 and CCL2.|Taken together, these data suggest that dephosphorylation of S276 by PPM1A may contribute to inhibit RelA transcriptional activity, but the majority of PPM1A activity to inhibit RelA transcription relies on dephos phorylation of S536 of RelA.|We show that PPM1A directly dephosphorylated RelA at residues S536 and S276 and selectively inhibited Nuclear factor-\u03baB transcriptional activity, resulting in decreased expression of monocyte chemotactic protein-1/chemokine (C-C motif) ligand 2 and interleukin-6, cytokines implicated in cancer metastasis.
SIGNOR-276963
P00533
O15126
1
phosphorylation
up-regulates activity
0.335
In our efforts to identify cellular tyrosine kinases that phosphorylate SCAMPs, we are quite intrigued by the observation that among a number of kinases, only the EGFR exhibits activity toward SCAMPs. EGF catalyzes the progressive phosphorylation of the SCAMPs up to 1 h poststimulation and may enhance colocalization of the EGFR and SCAMP3 within the cell interior. EGF also induces SCAMP-EGFR association, as detected by coimmunoprecipitation, and phosphorylation of SCAMP3 is stimulated by the EGFR in vitro. These results suggest that phosphorylation of SCAMPs, either directly or indirectly, may be functionally linked to the internalization/down-regulation of the EGFR. we have observed that there are two tyrosines conserved in SCAMP1 and SCAMP3, which are not found in SCAMP2. Of these two tyrosines (Tyr37 and Tyr73 in SCAMP1; Tyr 41 and Tyr83 in SCAMP3), we consider Tyr37/41 to be a more likely site for tyrosine phosphorylation
SIGNOR-262857
Q96CV9
P53350
0
phosphorylation
up-regulates
0.539
Here we show that at mitotic entry, plk1 phosphorylates optineurin (optn) at serine 177 and that this dissociates optn from the golgi-localized gtpase rab8, inducing its translocation into the nucleus.
SIGNOR-196367
P46527
P07948
0
phosphorylation
down-regulates
0.553
We previously reported that y88 phosphorylation of p27(kip1) by oncogenic tyrosine kinases impairs p27(kip1)-mediated cdk inhibition, and initiates its ubiquitin-dependent proteasomal degradation.
SIGNOR-172904
P25098
P05129
0
phosphorylation
up-regulates
0.2
Phosphorylation of grk2 by protein kinase c abolishes its inhibition by calmodulinin vitro, grk2 was preferentially phosphorylated by pkc isoforms alpha, gamma, and delta
SIGNOR-83231
Q9NTG7
P48735
1
deacetylation
up-regulates
0.657
Site-specific, genetic incorporation of n(_)-acetyllysine into position 413 of idh2 revealed that acetylated idh2 displays a dramatic 44-fold loss in activity. Deacetylation by sirt3 fully restored maximum idh2 activity.
SIGNOR-196617
P49023
O14522
0
dephosphorylation
down-regulates activity
0.462
To this end, using a phospho-proteomics approach, we identified and validated paxillin and STAT3 as the substrates of PTPRT [15, 16]|the PTPRT target site on paxillin is a previously uncharacterized tyrosine-88 residue (paxillin Y88)|In this study, we also show how pY88 paxillin transduces a signal to activate Akt
SIGNOR-263978
Q8WYL5
Q15139
0
phosphorylation
down-regulates
0.479
Pkd-mediated phosphorylation of serines 937 and 978 regulates ssh1l subcellular localization by binding of 14-3-3 proteins 14-3-3 proteins associate with ssh1l when phosphorylated at serines 937 and 978, thereby sequestering ssh1l in the cytoplasm and preventing translocation of the phosphatase to f-actin_rich membrane protrusions
SIGNOR-186471
P55060
Q13490
0
polyubiquitination
down-regulates quantity by destabilization
0.333
We find that TRAIL induces up-regulation of CAS in a posttranscriptional, caspase-8-dependent manner through degradation of cIAP1, an E3 ligase that targets CAS for ubiquitin-dependent proteasomal degradation. 
SIGNOR-272812
P15407
P17535
0
transcriptional regulation
up-regulates quantity by expression
0.817
Members of the AP1 family distinctly regulated the fra-1 promoter. In particular, coexpression of c-Jun, Jun-D, and Fra-2 up-regulated fra-1 transcription. 
SIGNOR-261603
O15519
Q16539
0
phosphorylation
up-regulates
0.373
Here we demonstrate that m. tuberculosis?induced Tnf triggered reactive oxygen species?dependent Activation of ask1 and the tyrosine kinase c-abl (a000161) in mouse macrophages and that flips was phosphorylated on tyr211 and ser4 by c-abl and p38, respectively.
SIGNOR-187001
O95238
Q9UQ88
0
phosphorylation
down-regulates quantity by destabilization
0.356
In this study we provide evidence that the cell cycle kinase CDK11p58, a protein involved in G2/M transition and degradation of several transcription factors, directly interacts with and phosphorylates SPDEF on serine residues|Western blot analysis demonstrated that only one of the mutant constructs, consisting of mutations of serine 238, 242 and 243, resulted in increased levels of SPDEF protein expression as compared to wild type SPDEF, leading to subsequent ubiquitination and degradation of SPDEF through the proteasome pathway.|
SIGNOR-273022
P31751
Q05513
0
phosphorylation
up-regulates activity
0.498
The activation of PKBbeta and PKBgamma by PDK1 was accompanied by the phosphorylation of the residues equivalent to Thr308 in PKBalpha, namely Thr309 (PKBbeta) and Thr305 (PKBgamma). PKBgamma which had been activated by PDK1 possessed a substrate specificity identical with that of PKBalpha and PKBbeta towards a range of peptides. The activation of PKBgamma and its phosphorylation at Thr305 was triggered by insulin-like growth factor-1 in 293 cells.
SIGNOR-248997
P09874
P55210
0
cleavage
down-regulates
0.719
Caspase-7 cleaves parp;redundancy exists between the caspase-3 and -7 at the level of parp proteolysis.
SIGNOR-83703
Q16539
Q13202
0
dephosphorylation
down-regulates
0.591
M3/6 (dusp8) is a dual-specificity phosphatase implicated in the dephosphorylation and inactivation of jnk and, to a lesser extent, p38 mapk
SIGNOR-199695
P08559
Q15119
0
phosphorylation
down-regulates
0.679
Mammalian pyruvate dehydrogenase (?2_2) (e1) is regulated by phosphorylation-dephosphorylation, catalyzed by the e1-kinase and the phospho-e1-phosphatase.
SIGNOR-33141
Q9UQD0
Q9UQM7
0
phosphorylation
up-regulates activity
0.279
CaMKII enhances voltage-gated sodium channel Nav1.6 activity and neuronal excitability|mmobilized peptide arrays and nanoflow LC-electrospray ionization/MS of Nav1.6 reveal potential sites of CaMKII phosphorylation, specifically Ser-561 and Ser-641/Thr-642 within the first intracellular loop of the channel.
SIGNOR-275785
Q16236
P17252
0
phosphorylation
up-regulates
0.536
Phosphorylation of nrf2 at ser-40 by protein kinase c regulates antioxidant response element-mediated transcription / recently we reported evidence for the involvement of protein kinase c (pkc) in phosphorylating nrf2 and triggering its nuclear translocation in response to oxidative stress
SIGNOR-91826
Q9BXW9
P38398
0
ubiquitination
up-regulates activity
0.845
The major genetic evidence supporting ubiquitin ligase function for BRCA1 in vivo comes from studies on the FANCD2 protein. Whereas in wild‐type cells the FANCD2 protein co‐localizes with BRCA1 in nuclear foci and becomes monoubiquitylated in response to DNA damage, HCC1937 cells, which encode a mutated form of BRCA1, are largely defective for both monoubiquitylation of FANCD2 and foci formation
SIGNOR-263236
Q9UHC6
Q12860
1
relocalization
up-regulates activity
0.477
These results suggest that the targeting of contactin to different axonal domains may be determined, in part, via its association with Caspr.
SIGNOR-269074
P18848
P54577
1
transcriptional regulation
up-regulates quantity by expression
0.2
QRICH1 promotes the expression of translation-related genes. our combined ChIP-seq and RNA-seq analyses identified that QRICH1 and ATF4 were enriched at the promoters of these specific tRNA synthetases, and that ER stress positively regulated their transcription (Fig. 4I). Together, these findings suggest that QRICH1 and ATF4 modulate tRNA metabolic processes to promote secreted protein synthesis during ER stress.
SIGNOR-269431
Q16539
Q15910
1
phosphorylation
down-regulates quantity by destabilization
0.372
Here, we show that p38α kinase promotes EZH2 degradation in differentiating muscle cells through phosphorylation of threonine 372
SIGNOR-255663
Q96J02
Q13571
1
polyubiquitination
down-regulates quantity by destabilization
0.411
Here, we found that the level of LAPTM5 protein is regulated negatively by the degradation through ubiquitination by ITCH, an E3 ubiquitin ligase. ITCH directly binds to the PPxY motif of LAPTM5 via its WW domains and promotes ubiquitination through a HECT-type ligase domain.
SIGNOR-272721
P28482
P08047
1
phosphorylation
up-regulates
0.644
Here we show that p42/p44 mapk directly phosphorylates sp1 on threonines 453 and 739 both in vitro and in vivo. Mutation of these sites to alanines decreases by half the mapk-dependent transcriptional activity of sp1. Phosphorylated extracellular signal-regulated protein kinases 1 and 2 phosphorylate sp1 on serine 59 and regulate cellular senescence via transcription of p21sdi1/cip1/waf1.
SIGNOR-116158
Q9H0X6
P11474
0
transcriptional regulation
up-regulates quantity by expression
0.2
Furthermore, RNF208 was induced by 17β-estradiol (E2) treatment in an estrogen receptor alpha (ΕRα)-dependent manner
SIGNOR-269052
P12931
P10275
1
phosphorylation
up-regulates activity
0.76
In addition to the ability of Src to promotes castration resistant progression and AR activation, Src is involved in regulating prostate cancer cell migration, invasion, and metastasis and affects bone remodeling.|These data suggest that downstream of cell surface receptors, Ack1 mediates AR tyrosine phosphorylation at Tyr 267 and Src mediates AR tyrosine phosphorylation at Tyr 534.
SIGNOR-278168
P42336
O95819
0
phosphorylation
down-regulates activity
0.2
MST1/2 and HGK inhibit catalytic activity of p110α through phosphorylation at T1061 
SIGNOR-277921
Q96GD4
Q8IX90
1
phosphorylation
up-regulates activity
0.455
Aurora B directly phosphorylated Ska1 and Ska3 in vitro, and expression of phosphomimetic mutants of Ska1 and Ska3 impaired Ska KT recruitment and formation of stable KT-MT fibers (K-fibers), disrupting mitotic progression. We propose that Aurora B phosphorylation antagonizes the interaction between the Ska complex and the KMN network, thereby controlling Ska recruitment to KTs and stabilization of KT-MT attachments.
SIGNOR-262661
P08559
Q16654
0
phosphorylation
down-regulates
0.686
Mammalian pyruvate dehydrogenase (?2_2) (e1) is regulated by phosphorylation-dephosphorylation, catalyzed by the e1-kinase and the phospho-e1-phosphatase.
SIGNOR-33201
Q7L7X3
Q7KZI7
1
phosphorylation
up-regulates activity
0.414
MARK family kinases can be activated by phosphorylation of a conserved threonine (Thr-208 in MARK2), and inactivated by phosphorylation of a serine (Ser-212), both in the activation loop of the catalytic domain. Activation is achieved by the kinases MARKK/TAO1 or LKB1, although the inactivating kinase was unknown. We show here that GSK3beta serves the role of the inhibitory kinase.
SIGNOR-276164
Q9Y5P4
Q15139
0
phosphorylation
down-regulates
0.2
In this study, we identify cert as a novel in vivo pkd substrate. Phosphorylation on serine 132 by pkd decreases the affinity of cert toward its lipid target phosphatidylinositol 4-phosphate at golgi membranes and reduces ceramide transfer activity
SIGNOR-156500
P46527
O60674
0
phosphorylation
down-regulates activity
0.696
JAK2 phosphorylates tyrosine residue 88 (Y88) of p27(Kip1).
SIGNOR-278260
P00533
Q8TDY4
1
phosphorylation
up-regulates activity
0.2
How ACAP4 regulates membrane dynamics and curvature in response to EGF stimulation is unknown. Here, we show that phosphorylation of the N-terminal region of ACAP4, named the Bin, Amphiphysin, and RSV161/167 (BAR) domain, at Tyr34 is necessary for EGF-elicited membrane remodeling. |EGF stimulation of cells causes phosphorylation of ACAP4 at Tyr34, which subsequently promotes ACAP4 homodimer curvature.
SIGNOR-272234
P35240
P17612
0
phosphorylation
up-regulates
0.405
Merlin contains a c-terminal serine 518, which is phosphorylated both by p21-activated kinase (pak) and protein kinase a (pka) (shaw et al., 2001;kissil et al., 2002;xiao et al., 2002;alfthan et al., 2004). Phosphorylation at this site is predicted to result in a more open conformation incapable of inhibiting cell growth,
SIGNOR-159840
Q9BVN2
Q9Y6K9
1
null
up-regulates quantity by stabilization
0.308
NESCA interacts with the IKK complex by the N-terminal region of NEMO. This experiment revealed that the overexpression of NESCA completely abolished the TRAF6-mediated polyubiquitination of NEMO, as it appears by using either anti-HA (Fig. 5A) or anti-NEMO (Fig. 5B) antibodies on immunoprecipitated extracts.
SIGNOR-272775
Q969H4
P12931
0
phosphorylation
up-regulates activity
0.506
We identified Tyr 26 as a PDGF-induced and, additionally, Tyr 519 and Tyr 665 as SRC-induced tyrosine phosphorylation sites. Phosphomimetic mutants indicate that phosphorylation of Tyr 519 recruits CNK1 to the nucleus and additional phosphorylation of Tyr 26 enables CNK1 to promote SRE-dependent gene expression.
SIGNOR-275918
Q13188
O95835
1
phosphorylation
up-regulates
0.62
Since the N-terminal half of Lats1 (residues 1–588) was dispensable for the activation of Lats1 by Mst2, mass spectrometry was used to identify phosphorylation sites within the C-terminal domain of Lats1.
SIGNOR-132927
O14490
Q00535
0
phosphorylation
down-regulates quantity by destabilization
0.408
Taken together, these sets of data suggest that Abeta triggers the phosphorylation of GKAP by cdk5 at the serine residues S77 and S111 that in turn are crucial for GKAP degradation.
SIGNOR-279153
Q15139
Q92481
1
phosphorylation
down-regulates activity
0.295
Mechanistically, we observed that PKD phosphorylates AP2\u03b2 at Ser-258 and Ser-277 and suppresses its nuclear accumulation.|Using ChIP analyses, here we found that PKD knockdown in HUVECs increases binding of AP2beta to the VEGFR-2 promoter.
SIGNOR-279267
P51692
P12931
0
phosphorylation
up-regulates
0.578
Stat5 is activated by a broad spectrum of cytokines, as well as non-receptor tyrosine kinases, such as src. these conformational differences may in part be due to differential effects of prl and src on stat5b tyrosine phosphorylation, since src induced several additional sites of tyrosine phosphorylation of stat5b at residues other than tyr-699, including tyr-724 and tyr-679.
SIGNOR-99002
O60885
O60674
0
phosphorylation
up-regulates quantity by stabilization
0.324
JAK2 induces tyrosine phosphorylation of BRD4 at Y97/Y98, resulting in BRD4 stabilization. 
SIGNOR-277312
Q8N884
P51451
0
phosphorylation
down-regulates activity
0.2
DNA damage induces nuclear translocation of cGAS in a manner that is dependent on importin-α, and the phosphorylation of cGAS at tyrosine 215-mediated by B-lymphoid tyrosine kinase-facilitates the cytosolic retention of cGAS.
SIGNOR-275844
P49810
P68400
0
phosphorylation
up-regulates activity
0.307
In vitro the large hydrophilic loop of PS-2 between transmembrane domains 6 and 7 can be phosphorylated by casein kinase-1 (CK-1) and CK-2, but not by PKA or PKC. Quantitative analysis of in vitro phosphorylation demonstrates the presence of two phosphorylation sites for CK-1 and a single site for CK-2. A deletion analysis revealed that the CTF of PS-2 is phosphorylated in vivo within an acidic sequence containing three potential phosphorylation sites for CKs (serines 327, 330, and 335). These data suggest that CK type protein kinases phosphorylate the CTF of PS-2 within its hydrophilic loop domain in vivo. Interestingly, the potential phosphorylation sites are located directly adjacent to the recently identified caspase cleavage sites.
SIGNOR-250934
O95999
O76064
0
ubiquitination
up-regulates quantity by stabilization
0.328
Phosphorylated and ubiquitinated BCL10 is stabilized on the damage sites through binding to and presenting UBC13 to RNF168.|We thus concluded that BCL10 is ubiquitinated mainly with K63-linked ubiquitination by RNF8.
SIGNOR-278778
Q9NX47
O95140
1
ubiquitination
up-regulates activity
0.2
Taken together, these results suggested that MITOL regulates endoplasmic reticulum tethering to mitochondria by activating Mfn2 via K192 ubiquitination.|Therefore, MITOL specifically ubiquitinates mitochondrial Mfn2.
SIGNOR-278553
P07332
P11274
1
phosphorylation
down-regulates activity
0.368
In the present study, we demonstrate that BCR Tyr-246 and at least one of the closely spaced tyrosine residues, Tyr-279, Tyr-283, and Tyr-289 (3Y cluster), are phosphorylated by FES both in vitro and in 32Pi-labeled cells. Co-expression of BCR and FES in human 293T cells stimulated the tyrosine autophosphorylation of FES. By contrast, tyrosine phosphorylation of BCR by FES suppressed BCR serine/threonine kinase activity toward the 14-3-3 protein and BCR substrate, BAP-1. 
SIGNOR-251137
O60674
P48029
1
relocalization
down-regulates activity
0.2
Janus-activated kinase-2 (JAK2) participates in the regulation of the Na⁺-coupled glucose transporter SGLT1 and the Na⁺-coupled amino acid transporter SLC6A19. JAK2 is a novel regulator of the creatine transporter SLC6A8, which downregulates the carrier, presumably by interference with carrier protein insertion into the cell membrane.
SIGNOR-265781
P12931
P17302
1
phosphorylation
down-regulates
0.588
The oncogenic tyrosine kinase, v-src, phosphorylates connexin43 (cx43) on y247 and y265 and inhibits cx43 gap junctional communication (gjc), the process of intercellular exchange of ions and metabolites.
SIGNOR-148913
Q9BY11
Q9NQU5
0
phosphorylation
up-regulates activity
0.2
We identified two novel Pak5 substrates, Pacsin1 and Synaptojanin1, proteins that directly interact with one another to regulate synaptic vesicle endocytosis and recycling. Pacsin1 and Synaptojanin1 were phosphorylated by Pak5 and the other group II Paks in vitro, and Pak5 phosphorylation promoted Pacsin1-Synaptojanin1 binding both in vitro and in vivo.
SIGNOR-263021
Q9UHD2
Q13501
1
phosphorylation
up-regulates
0.709
Tbk-1 coordinated assembly and function of the autophagic machinery and phosphorylated the autophagic adaptor p62 (sequestosome 1) on ser-403, a residue essential for its role in autophagic clearance.
SIGNOR-191944
P05129
P10636-2
1
phosphorylation
down-regulates activity
0.27
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-275445
P0C1H6
Q14493
0
translation regulation
up-regulates quantity by expression
0.2
Synthesis of mature histone mRNA requires only a single processing reaction: an endonucleolytic cleavage between a conserved stem-loop and a purine-rich downstream element to form the 3' end. The stem-loop binding protein (SLBP) is required for processing, and following processing, histone mRNA is transported to the cytoplasm, where SLBP participates in translation of the histone mRNA|We used radiolabeled probes generated by PCR targeting the open reading frame (ORF) to detect histones H2A, H2B, H3, H4, and H1 and used 7SK snRNA as a loading control (Fig. 2A). The abundance of histone H2A, H2B, H3, and H4 mRNAs is reduced to 37% to 70% of control levels in the SLBP knockdown cells when compared to the C2 control.
SIGNOR-265395
O15297
Q9H2X6
0
phosphorylation
down-regulates quantity by destabilization
0.419
HIPK2 phosphorylates WIP1 at Ser54 and Ser85, and phosphorylated WIP1 is subject to proteasomal degradation so that WIP1 is maintained at low levels.
SIGNOR-278230
Q9HCK4
P23528
1
post transcriptional regulation
up-regulates quantity by expression
0.257
Slit2 causes the miRNA miR-182 to release cofilin1 mRNA, potentiating cofilin1 local translation and resulting in growth cone collapse. The use of morpholinos or RNAi to knockdown robo2 and robo3 in X. laevis RGCs, would be useful to further confirm that Robo2 and Robo3 are the receptors involved in Slit2-dependent cofilin1 translation.
SIGNOR-268378
Q86VE9
Q14004
0
phosphorylation
down-regulates quantity by destabilization
0.2
In addition, CDK13-KD disrupted Nef downregulation of SERINC5 from the cell surface, whereas CDK12-KD did not (Figures 2D and 2E).|Thus, S360 phosphorylation increases interactions between Nef and SERINC5 and initiates the destruction of SERINC5 by the endocytic machinery.|Thus, we conclude that CycK/CDK13 phosphorylates the S360 residue of SERINC5.
SIGNOR-278918
O96013
P62826
1
phosphorylation
up-regulates
0.308
We show that ran is a substrate for p21-activated kinase 4 (pak4) and that its phosphorylation on serine-135 increases during mitosis.Altogether, our findings strongly suggest that pak4-mediated phosphorylation of gdp- or gtp-bound ran modulates the assembly of complexes that are required at specific subcellular localizations for ran to carry out its functions during mitotic progression.
SIGNOR-167667
P48740
P0C0L5
1
cleavage
up-regulates activity
0.676
The classical complement activation pathway, like the MELinitiated pathway, involves the generation of a C3-converting complex, C4b2b, through enzymatic activation of C4 and C2. In the C1 complex (C1qr2s2), this specific protease activity is exhibited by C1s after activation of this enzyme by C1r. When C4 is activated, its reactive thiol ester is exposed and C4b binds covalently to nearby amino or hydroxyl groups. The C4-activating abilities of MASP-1 and MASP-2 were compared.|Activation of C4 by Ct sand MASP-2 on western blots.
SIGNOR-263426
P17252
P08581
1
phosphorylation
down-regulates
0.256
These data show that phosphorylation of ser985 is a key mechanism for the negative regulation of hgf/sf receptor.
SIGNOR-37718
P12931
Q14721
1
phosphorylation
up-regulates
0.479
In the present study we show that an n-terminal tyrosine of kv2.1 (y124), which is a known target of src kinase, is critical for the apoptotic current surge..Kv2.1-mediated k+ currents are also enhanced during non-injurious conditions through direct phosphorylation of intracellular n-terminal residue tyrosine 124 (y124) by src kinase
SIGNOR-187201
P15172
P24941
0
phosphorylation
down-regulates
0.522
Cyclin e/cdk2 can phosphorylate myod at serine 200, which causes ubiquitination and degradation of this transcription factor during g1, preventing its accumulation and a commitment to differentiation.
SIGNOR-176509
P17252
P00533
1
phosphorylation
down-regulates activity
0.609
Biochemical and morphological analyses indicate that threonine-phosphorylated EGFR molecules undergo normal internalization, but instead of sorting to lysosomal degradation, they recycle back to the cell surfaceThe inhibitory effects of pkc are mediated by a single threonine residue (threonine 654) of egfr
SIGNOR-77421
O43524
P11309
0
phosphorylation
down-regulates activity
0.387
Pim1s expression induced the phosphorylation of foxo3a (fig. 5a and b) and inactivated its transcriptional activity (fig. 5c). A previous report showed that phosphorylation at t32, s253, and s315 residues in foxo3a induced 14-3-3 binding, nuclear export, and proteasomemediated degradation (42).
SIGNOR-179308
Q99062
P08631
0
phosphorylation
up-regulates activity
0.385
Hck becomes activated upon G-CSF treatment and is, in turn, able to phosphorylate the G-CSF-R, indicating a clear functional and physical involvement in G-CSF signaling. the ability of Hck to phosphorylate the G-CSF-R in vitro, both Y728 and Y763 fit the Src consensus phosphorylation site. we investigated the activation of Hck by the G-CSF-R in intact cells as well as in vitro. These studies revealed recruitment of Hck to activated G-CSF-R, mediated by direct binding via its SH2 domain to multiple phosphotyrosines of the receptor. In addition, we show that Hck becomes activated upon G-CSF treatment and is, in turn, able to phosphorylate the G-CSF-R, indicating a clear functional and physical involvement in G-CSF signaling.
SIGNOR-251264
Q8IYK4
P02462
1
glycosylation
up-regulates activity
0.452
Recombinant GLT25D1 and GLT25D2 enzymes showed a strong galactosyltransferase activity toward various types of collagen and toward the serum mannose-binding lectin MBL, which contains a collagen domain. Amino acid analysis of the products of GLT25D1 and GLT25D2 reactions confirmed the transfer of galactose to hydroxylysine residues.
SIGNOR-261159
P42681
P06241
0
phosphorylation
up-regulates activity
0.347
We further demonstrate that Rlk can be phosphorylated and activated by Src kinases, leading to a decrease in its half-life. A specific tyrosine in the activation loop of Rlk, Y420, is required for phosphorylation and activation, as well as for decreased stability, but is not required for lipid RAFT association.
SIGNOR-249341
Q16620
Q6UB99
0
transcriptional regulation
up-regulates quantity by expression
0.2
Ankrd11 knockdown decreases the levels of bdnf and Trkb mRNAs. Next, we examine whether ANKRD11 accesses the Trkb promoter in cortical neurons. We performed the chromatin immunoprecipitation assay (ChIP) using an ANKRD11 antibody followed by PCR to amplify the Trkb promoter region. We found that ANKRD11 binds to the Trkb promoter (Fig. 6E). As expected, the level of ANKRD11 binding was decreased in the Ankrd11 knockdown condition.
SIGNOR-266731
P53350
Q06609
1
phosphorylation
up-regulates activity
0.508
Mechanistically, TOPBP1 physically binds PLK1 and promotes PLK1 kinase-mediated phosphorylation of RAD51 at serine 14, a modification required for RAD51 recruitment to chromatin.|Mechanistically, TOPBP1 physically binds PLK1 and promotes PLK1 kinase\u2013mediated phosphorylation of RAD51 at serine 14, a modification required for RAD51 recruitment to chromatin.
SIGNOR-278187
Q03135
P06241
0
phosphorylation
down-regulates activity
0.721
Caveolin-1 is phosphorylated on tyr(14) in response to both oxidative and hyperosmotic stress. In the present paper, we show that this phosphorylation requires activation of the src family kinase fyn.Therefore,
SIGNOR-118003