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Q9GZM8
Q9NRI5
0
binding
up-regulates activity
0.58
Disrupted-In-Schizophrenia 1 (DISC1) is a candidate gene for susceptibility to schizophrenia. DISC1 is reported to interact with NudE-like (NUDEL), which forms a complex with lissencephaly-1 (LIS1) and 14-3-3ε. 14-3-3ε is involved in the proper localization of NUDEL and LIS1 in axons. the association with NUDEL and LIS1 supports the notion that DISC1 contributes to the neuronal development and morphology 
SIGNOR-252162
Q13761
P12931
0
phosphorylation
down-regulates activity
0.58
In this study, we provide evidence that Src phosphorylates RUNX3 at multiple tyrosine residues.|Our finding that Src inactivates RUNX3 by cytoplasmic sequestration in gastric cancer and breast cancer suggests that the inactivation of RUNX3 may be a key function of oncogenic kinases.
SIGNOR-278199
P04637
P06493
0
phosphorylation
up-regulates activity
0.579
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-167779
P17480
P27361
0
phosphorylation
down-regulates
0.579
Erk1/2 was found to phosphorylate the architectural transcription factor ubf at amino acids 117 and 201 within hmg boxes 1 and 2, preventing their interaction with dna
SIGNOR-112817
Q9HC77
Q9NYY3
0
phosphorylation
up-regulates
0.579
Plk2 phosphorylates the s589 and s595 residues of cpap in vitro and in vivo. This phosphorylation is critical for procentriole formation during the centrosome cycle.
SIGNOR-165999
P49815
O00141
0
phosphorylation
down-regulates activity
0.579
SGK1, which is activated by PDK1, contributes to the maintenance of residual mTORC1 activity through direct phosphorylation and inhibition of TSC2. 
SIGNOR-277266
Q13761
Q00987
0
ubiquitination
down-regulates quantity by destabilization
0.579
RUNX3 protein is ubiquitinated by MDM2 at Lys-94 and Lys-148.|RUNX3 protein is ubiquitinated by MDM2 at Lys 94 and Lys 148.|MDM2 suppresses the transcriptional activity of RUNX3.
SIGNOR-278557
Q14524
P61328
0
binding
down-regulates activity
0.579
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-253416
Q13144
P49841
0
phosphorylation
down-regulates activity
0.579
The largest (epsilon) subunit of eIF2B is a substrate for glycogen synthase kinase (GSK)-3 in vitro, and phosphorylation by GSK3 inhibits the activity of eIF2B. The site of phosphorylation has previously been identified as Ser(535).
SIGNOR-251236
P15927
P78527
0
phosphorylation
down-regulates activity
0.579
We showed previously that UV irradiation increases phosphorylation of the p34 subunit of human replication protein A (RPA) and that this hyperphosphorylation correlated with loss of activity of the DNA replication complex. | we detected phosphorylation of the RPA complex by DNA-PK on RPA-p34 sites Ser-23, Ser-29, and Ser-11, -12, or -13
SIGNOR-248981
P55017
Q96J92
0
phosphorylation
up-regulates activity
0.579
Threonine 48 was identified as the WNK4 phosphorylation site at mouse NCC|. Thus, WNK4 stimulates NCC in three ways: (1) direct phosphorylation and in turn increasing NCC protein abundance; (2) facilitating the phosphorylation of NCC by SPAK/OSR1 indirectly, and (3) phosphorylating and activating SPAK/OSR1.|Evidences from early studies using Xenopus oocytes and mammalian cells indicate that WNK4 inhibits NCC and PHAII-causing mutations relieve the inhibition
SIGNOR-264631
Q2NKX8
P06493
0
phosphorylation
up-regulates
0.579
Following phosphorylation of pich on the cdk1 site t1063, plk1 is recruited to pich and controls its localization. Starting in prometaphase, pich accumulates at kinetochores and inner centromeres.
SIGNOR-152133
P49841
P48729
0
binding
up-regulates activity
0.579
In the absence of secreted wnt ligands, cytosolic beta-catenin is phosphorylated at ser45 by the priming kinase casein kinase 1 (ck1). Consequently, glycogen synthase kinase 3 (gsk3), in complex with axin and adenomatous polyposis coli (apc), phosphorylates beta-catenin at thr41, ser37, and ser33 apc cooperates with axin to promote the phosphorylation of b-catenin by gsk3 [which requires priming phosphorylation by casein kinase 1, alpha-isoform (ck1alpha)]
SIGNOR-184696
Q8WXE1
P24941
0
phosphorylation
up-regulates
0.579
Atrip is a cdk2 substrate, and cdk2-dependent phosphorylation of s224 regulates the ability of atr-atrip to promote cell cycle arrest in response to dna damage./ One possibility is s224 phosphorylation creates a binding site for another protein involved in the g2-m checkpoint response
SIGNOR-156928
P50148
P20309
0
binding
up-regulates activity
0.579
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-257018
P50542
P28328
0
ubiquitination
down-regulates quantity by destabilization
0.579
Here we report on the identification of the protein-ubiquitin ligases that are responsible for the ubiquitination of the peroxisomal protein import receptor Pex5. It is demonstrated that each of the three RING peroxins Pex2, Pex10, and Pex12 exhibits ubiquitin-protein isopeptide ligase activity. Our results show that Pex2 mediates the Ubc4-dependent polyubiquitination whereas Pex12 facilitates the Pex4-dependent monoubiquitination of Pex5.While polyubiquitinated Pex5 is degraded by the proteasome, monoubiquitinated Pex5 is destined for a new round of the receptor cycle.
SIGNOR-253021
P63104
P48729
0
phosphorylation
down-regulates activity
0.579
This protein kinase has been identified as casein kinase Ialpha (CKIalpha) by peptide mapping analysis and sequencing. Among mammalian 14-3-3, only 14-3-3 tau possesses a phosphorylatable residue at the same position (Ser-233), and we show that this residue is also phosphorylated by CKI. In addition, we show that 14-3-3 zeta is exclusively phosphorylated on Thr-233 in human embryonic kidney 293 cells. The residue 233 is located within a region shown to be important for the association of 14-3-3 to target proteins. | We have now shown that in vivo phosphorylation of 14-3-3 zeta at the CKIalpha site (Thr-233) negatively regulates its binding to c-Raf, and may be important in Raf-mediated signal transduction.
SIGNOR-250796
Q04864
Q9UHD2
0
phosphorylation
up-regulates
0.579
The present results demonstrate that ikkepsilon- and tbk1-mediated phosphorylation of crel in the c-terminal td leads to cytoplasmic dissociation of a crel-ikb_ complex and nuclear accumulation of crel.
SIGNOR-148623
P35222
P55285
0
binding
up-regulates activity
0.578
At its C-terminus, cadherin interacts with β-catenin, which dynamically associates with α-catenin, a direct binding partner of filamentous actin
SIGNOR-265868
Q9NP31
P06239
0
phosphorylation
up-regulates activity
0.578
Here we mapped Lck phosphorylation and interaction sites on TSAd and evaluated their functional importance. The three C-terminal TSAd tyrosines Tyr(280), Tyr(290), and Tyr(305) were phosphorylated by Lck and functioned as docking sites for the Lck Src homology 2 (SH2) domain. Lck binds to TSAd prolines and phosphorylates and interacts with the three C-terminal TSAd tyrosines. We propose that through multivalent interactions with Lck, TSAd diverts Lck from phosphorylating other substrates, thus modulating its functional activity through substrate competition.
SIGNOR-262888
P04637
P48730
0
phosphorylation
up-regulates
0.578
Here we show that the direct association between a p53 n-terminal peptide and mdm2 is disrupted by phosphorylation of the peptide on thr(18) but not by phosphorylation at other n-terminal sites, including ser(15) and ser(37). Thr(18) was phosphorylated in vitro by casein kinase (ck1).
SIGNOR-75889
P06400
P04049
0
phosphorylation
down-regulates activity
0.578
Further, Raf-1 was able to phosphorylate Rb in vitro quite efficiently.|Raf-1 can inactivate Rb function and can reverse Rb mediated repression of E2F1 transcription and cell proliferation efficiently.
SIGNOR-279481
P16220
Q6SA08
0
phosphorylation
up-regulates
0.578
Tssk5, a novel member of the testis-specific serine/threonine kinase family, phosphorylates creb at ser-133, and stimulates the cre/creb responsive pathway.
SIGNOR-138289
P54252
O95155
0
polyubiquitination
down-regulates quantity by destabilization
0.578
Mammalian E4B (UFD2a), a ubiquitin chain assembly factor (E4), copurified with the polyubiquitylation activity for ataxin-3. E4B interacted with, and thereby mediated polyubiquitylation of, ataxin-3.  Collectively, these data suggest that E4B promotes the degradation of ataxin-3, and that this effect surmounts the stabilization of ataxin-3 conferred by expansion of the polyglutamine tract.
SIGNOR-271502
Q15796
Q92831
0
acetylation
up-regulates
0.578
We demonstrate that both smad2 and smad3 are acetylated by the coactivators p300 and cbp in a tgfbeta-dependent manner. Smad2 is also acetylated by p/caf. The acetylation of smad2 was significantly higher than that of smad3. Lys(19) in the mh1 domain was identified as the major acetylated residue in both the long and short isoform of smad2.....acetylation of the short isoform of smad2 improves its dna binding activity in vitro and enhances its association with target promoters in vivo, thereby augmenting its transcriptional activity
SIGNOR-150273
P08151
Q96J02
0
ubiquitination
down-regulates
0.578
The consequent activation of_ itch, together with the recruitment of gli1 through direct binding with_ numb, allows gli1 to enter into the complex, resulting in gli1 ubiquitination and degradation. we demonstrate that the hedgehog transcription factor gli1 is targeted by numb for itch-dependent ubiquitination, which suppresses hedgehog signals, thus arresting growth and promoting cell differentiation
SIGNOR-150847
P01112
Q9P212
0
guanine nucleotide exchange factor
up-regulates
0.578
The presence of a rasgef motif in the n terminus of plcepsilon suggests that plcepsilon can activate ras by acting as an exchange factor by promoting the exchange of gtp for bound gdp.
SIGNOR-82859
Q07869
P28482
0
phosphorylation
up-regulates activity
0.578
We now demonstrate that amino acids 1-92 of hPPARalpha contain an activation function (AF)-1-like domain, which is further activated by insulin through a pathway involving the mitogen-activated protein kinases p42 and p44. Further analysis of the amino-terminal region of PPARalpha revealed that the insulin-induced trans-activation occurs through the phosphorylation of two mitogen-activated protein kinase sites at positions 12 and 21, both of which are conserved across evolution.
SIGNOR-249434
Q99665
P29459
0
binding
up-regulates
0.578
Il-12r beta 2 plays an essential role in mediating the biological functions of il-12 in mice.
SIGNOR-84361
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
O00418
O15264
0
phosphorylation
down-regulates activity
0.578
eEF2 kinase is phosphorylated and inhibited by SAPK4/p38delta. eEF2K[S359A] was phosphorylated (presumably at Ser396) by the high concentrations of SAPK4/p38 used in this experiment. However, the inhibition of eEF2K under these conditions was reduced from 82% in the wild-type enzyme to 19% in eEF2K[S359A]
SIGNOR-250089
P46734
Q7L7X3
0
phosphorylation
up-regulates activity
0.578
The activation of and binding to MEK3 by TAO1 implicates TAO1 in the regulation of the p38-containing stress-responsive MAP kinase pathway
SIGNOR-60818
P50552
Q70E73
0
binding
up-regulates activity
0.578
Here we show that Lpd is a substrate of Abl kinases and binds to the Abl SH2 domain. Phosphorylation of Lpd positively regulates the interaction between Lpd and Ena/VASP proteins.
SIGNOR-268426
Q9H8V3
P06493
0
phosphorylation
down-regulates
0.577
We show that phosphorylation of ect2 at threonine-341 (t341) affects the autoregulatory mechanism of ect2. In g2/m phase, ect2 was phosphorylated at t341 most likely by cyclin b/cyclin-dependent kinase 1 (cdk1) ect2 is biologically active even when it is not phosphorylated at t341
SIGNOR-140549
P06213
P10586
0
dephosphorylation
down-regulates
0.577
Lar ptpase shows strong preference for dephosphorylation first at py5 (at tri-, di-, and monophosphotyrosyl levels). Initially this regioselectivity gives the y5(py9)(py10) diphospho regioisomer, followed by equal dephosphorylation at py9 or py10 to give the corresponding monophosphoryl species on the way to fully dephosphorylated product.
SIGNOR-76005
Q13621
Q9UEW8
0
phosphorylation
up-regulates activity
0.577
 We establish that the SPAK and OSR1 kinases activated by WNK interact with an RFQV motif on NKCC2 and directly phosphorylate Thr95, Thr100, Thr105 and, possibly, Ser91.Using these phosphorylation-specific antibodies we establish that hypotonic low-chloride stimulation induces marked phosphorylation of overexpressed NKCC2 in HEK-293 cells at Ser91, Thr100, Thr105 and Ser130 (Fig. 3A).
SIGNOR-276308
P18564
Q9Y490
0
binding
up-regulates activity
0.577
Over the past 10 years, the binding of talin to the cytoplasmic tail of integrin-β subunits has been established to have a key role in integrin activation. Binding of the phosphotyrosinebinding (PTB)-domain-like subdomain of the protein 4.1, ezrin, radixin, moesin (FERM) domain of talin to the conserved WxxxNP(I/L)Y motif of the β-integrin tail permits additional weaker interactions between talin and the membrane-proximal region of the tail that trigger integrin activation, probably through the disruption of inhibitory interactions between α- and β-subunit cytoplasmic tails.
SIGNOR-257631
O43765
P11441
0
binding
up-regulates activity
0.577
USP13 and gp78 control ubiquitination of Ubl4A.These data suggest that USP13 and gp78 play antagonizing roles in regulation of Ubl4A ubiquitination: While gp78 assembles ubiquitin chains on Ubl4A, USP13 antagonizes this activity to limit Ubl4A ubiquitination.Ubiquitination of Ubl4A preferentially occurs on Lys48. We identify the Bag6 cofactor Ubl4A as a shared substrate of gp78 and USP13. USP13 depletion is associated with hyper-ubiquitination of Ubl4A and altered interaction between the Bag6 complex and its co-chaperone SGTA. Because the interaction of Ubl4A with SGTA is mediated by positively-charged residues in Ubl4A including Lys48 (Chartron et al., 2012; Xu et al., 2012), which happens to be the major ubiquitination site, the simplest model to explain reduced Bag6-SGTA interaction in USP13 knockdown cells is that ubiquitin conjugates on Ubl4A sterically hinder SGTA binding.
SIGNOR-272858
P15941
P00533
0
phosphorylation
up-regulates activity
0.577
We also show that the activated egf-r phosphorylates the muc1 cytoplasmic tail on tyrosine at a yekv motif that functions as a binding site for the c-src sh2 domain. The results demonstrate that egf-r-mediated phosphorylation of muc1 induces binding of muc1 to c-src in cells
SIGNOR-109538
P16949
P27361
0
phosphorylation
down-regulates activity
0.577
Stress-induced stathmin phosphorylation is not de- pendent on ERK. Stathmin is also known to be phos- phorylated by ERK on Ser-25 and Ser-38 (17). Thus, it is possible that ERK phosphorylates stathmin in 293 cells|In subsequent reports (28, 29) it was shown that phosphorylation of stathmin blocks its ability to destabilize MTs.
SIGNOR-249483
P50148
P24530
0
binding
up-regulates activity
0.577
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-257379
P11021
Q9H173
0
binding
up-regulates activity
0.577
BAP, a Mammalian BiP-associated Protein, Is a Nucleotide Exchange Factor That Regulates the ATPase Activity of BiP. In addition,BAP was associated with BiP in mammalian cells and inter-acted with BiP functionallyin vitro. BAP stimulated the ATPase activity of BiP when added alone or together with the ER DnaJ protein, ERdj4, by promoting the release of ADP from BiP. Together, these data demonstrate that BAP serves as a nucleotide exchange factor for BiP and provide insights into the mechanisms that control protein folding in the mammalian ER.
SIGNOR-261045
P60953
Q9C0H5
0
gtpase-activating protein
down-regulates activity
0.577
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-260495
P10071
Q2M1P5
0
binding
up-regulates quantity by stabilization
0.577
These results suggest a role for Kif7 in coordinating Hh signal transduction at the tip of cilia and preventing Gli3 cleavage into a repressor form in the presence of Hh.
SIGNOR-209614
Q86TM6
Q9UBU6
0
binding
up-regulates activity
0.577
FAM8A1 enhances binding of Herp to Hrd1, an interaction that is required for ERAD. Our findings support a model of Hrd1 complex formation, where the Hrd1 cytoplasmic domain and FAM8A1 have a central role in the assembly and activity of this ERAD machinery. A conserved Hrd1 cytoplasmic domain interacts with FAM8A1 and Herp
SIGNOR-261348
Q05513
O15530
0
phosphorylation
up-regulates
0.577
Our findings suggest that insulin, via pip(3), provokes increases in pkc-zeta enzyme activity through (a) pdk-1-dependent t410 loop phosphorylation, (b) t560 autophosphorylationcytoskeletal reorganization;tnni1(induces);desmin(induces);tpm1(induces);myo1c(induces);tnnt1(induces);
SIGNOR-85501
P49815
P54646
0
phosphorylation
up-regulates
0.577
We have observed that ampk directly phosphorylates tsc2, and the ampk-dependent phosphorylation of tsc2 is critical for the coordination between cell growth and cellular energy levels.
SIGNOR-149388
Q05655
O15530
0
phosphorylation
up-regulates activity
0.577
PDK1 phosphorylated the activation loop sites of PKCzeta and PKCdelta in vitro and in a phosphoinositide 3-kinase (PI 3-kinase)-dependent manner in vivo in human embryonic kidney (293) cells. PKCδ was also phosphorylated in the activation loop site (T505)
SIGNOR-250269
P17947
P23769
0
binding
down-regulates activity
0.577
Here we demonstrate that a region of the PU.1 Ets domain (the winged helix–turn–helix wing) interacts with the conserved carboxyl-terminal zinc finger of GATA-1 and GATA-2 and that GATA proteins inhibit PU.1 transactivation of critical myeloid target genes.
SIGNOR-256071
P47712
Q9BUB5
0
phosphorylation
up-regulates activity
0.577
The results suggest that MNK1 or a closely related kinase is responsible for in vivo phosphorylation of cPLA2 on Ser-727.
SIGNOR-226633
Q13164
Q05513
0
phosphorylation
down-regulates activity
0.577
Furthermore, PKC\u03b6 phosphorylates ERK5, and mutation analysis showed that the preferred site is S486.|PKCzeta decreases eNOS protein stability via inhibitory phosphorylation of ERK5
SIGNOR-280090
Q92529-2
P12931
0
phosphorylation
up-regulates activity
0.576
We also obtained tryptic phosphopeptide maps of N-Shc protein phosphorylated in vitro by other tyrosine kinases, TrkB, v-Src and EGFR. The overall patterns of the phosphopeptide maps generated by these tyrosine kinases were similar, although there were some differences among these maps (Figure 4a–d).We performed phosphopeptide mapping analysis using GST-fused N-Shc protein, and found that N-Shc phosphorylated by TrkA in vitro was resolved into at least seven phosphopeptides (Y1 through Y7, Figure 4a). Phosphopeptide mapping revealed that N-Shc has novel tyrosine-phosphorylation sites at Y259/Y260 and Y286; in vivo-phosphorylation of these tyrosines was demonstrated by site-specific anti-pTyr antibodies. Phosphorylated Y286 bound to several proteins, of which one was Crk. The pY221/pY222 site, corresponding to one of the Grb2-binding sites of Shc, also preferentially bound to Crk. The phosphorylation-dependent interaction between N-Shc and Crk was demonstrated in vitro and in vivo.
SIGNOR-273921
P35222
Q13634
0
binding
up-regulates activity
0.576
At its C-terminus, cadherin interacts with β-catenin, which dynamically associates with α-catenin, a direct binding partner of filamentous actin
SIGNOR-265857
P20936
P29323
0
binding
up-regulates
0.576
We have localized an in vitro rasgap-binding site to conserved tyrosine residues y604 and y610 in the juxtamembrane region of ephb2, and demonstrated that substitution of these amino acids abolishes ephrin-b1-induced signalling events in ephb2-expressing ng108-15 cells.
SIGNOR-50100
P15498
P29350
0
dephosphorylation
down-regulates activity
0.576
SHP-1 dephosphorylates and inactivates the guanine exchange factor Vav1.
SIGNOR-277171
P16333
P00533
0
binding
up-regulates activity
0.576
We show that epidermal growth factor or platelet-derived growth factor stimulation of intact human or murine cells leads to phosphorylation of Nck protein on tyrosine, serine, and threonine residues
SIGNOR-252089
P16298
P0DP25
0
binding
up-regulates
0.576
Calcium-bound calmodulin associates with calcineurin (cn), releasing the phosphatase from the repressive effects on an autoinhibitory domain.
SIGNOR-266338
O75840
Q6PIJ6
0
binding
up-regulates activity
0.576
Interaction between MoKA and KLF7 was confirmed by the in vitro glutathione S-transferase pull-down assay and by coimmunoprecipitation of the proteins overexpressed in mammalian cells. Functional assays documented that MoKA is a KLF7 coactivator
SIGNOR-224621
P61586
P50148
0
binding
up-regulates
0.576
Recently, the dbl-family guanine nucleotide exchange factor (gef) p63rhogef/geft has been described as a novel mediator of galpha(q/11) signaling to rhoa based on its ability to synergize with galpha(q/11) resulting in enhanced rhoa signaling in cells.
SIGNOR-156534
Q9BUB5
P27361
0
phosphorylation
up-regulates
0.576
Mnk1 was phosphorylated and activated in vitro by erk1 and p38 map kinasespreliminary results showed that thr344 at least was one of the major sites phosphorylated by erk1
SIGNOR-48360
P14635
O14965
0
phosphorylation
up-regulates activity
0.576
A second wave of Cyclin B1-CDK1 phosphorylation by AurA occurs in late prophase.|Simultaneously, AurA activates and targets the Cyclin B1-CDK1 complex at centrosomes [ xref ].
SIGNOR-280186
Q8TEW6
P07949
0
binding
up-regulates
0.576
We identified two new family members, dok-4 and dok-5, that can directly associate with y1062 of c-ret dok-4 and dok-5 enhance c-ret-dependent activation of mitogen-activated protein kinase
SIGNOR-109513
P10721
P29350
0
binding
down-regulates
0.576
Shp-1 binds and negatively modulates the c-kit receptor by interaction with tyrosine 569 in the c-kit juxtamembrane domain.
SIGNOR-56104
P35568
P60484
0
dephosphorylation
down-regulates activity
0.576
In contrast, IRS-1 level were significantly decreased and phosphorylation of IRS-1 at Ser 307 was strongly enhanced by PTEN knockdown, suggesting that both reduction in IRS-1 level and increase in IRS-1 phosphorylation at Ser307 upon HCV infection occurred in a PTEN dependent manner.|In contrast, IRS-1 level were significantly decreased and phosphorylation of IRS-1 at Ser-307 was strongly enhanced by PTEN knockdown, suggesting that both reduction in IRS-1 level and increase in IRS-1 phosphorylation at Ser307 upon Hepatitis C virus infection occurred in a PTEN-dependent manner.
SIGNOR-277078
Q8WU20
P22681
0
ubiquitination
down-regulates
0.576
The experiments presented in this report illustrate that in response to fgf stimulation, cbl is recruited by grb2 binding to the frs2_ multiprotein complex, resulting in ubiquitination of frs2_ and fgfr. grb2 functions as a link between frs2_ and cbl;grb2 is bound to tyrosine-phosphorylated frs2_ by means of its sh2 domain and to a proline-rich region in the c terminus of cbl by means of its sh3 domains.
SIGNOR-87166
P27694
P54727
0
binding
up-regulates activity
0.575
GG-NER is initiated by the GG-NER specific factor XPC-RAD23B, in some cases with the help of UV-DDB (UV-damaged DNA-binding protein). TC-NER is initiated by RNA polymerase stalled at a lesion with the help of TC-NER specific factors CSA, CSB, and XAB2. Both pathways require the core NER factors to complete the excision process|The core NER dual incision reaction has been reconstituted in vitro with purified factors using XPC-RAD23B, TFIIH, XPA, RPA, XPG, and ERCC1-XPF (Aboussekhra et al. 1995; Mu et al. 1995; Araujo et al. 2000).|The core NER dual incision reaction has been reconstituted in vitro with purified factors using XPC-RAD23B, TFIIH, XPA, RPA, XPG, and ERCC1-XPF (Aboussekhra et al. 1995; Mu et al. 1995; Araujo et al. 2000). Functional studies revealed that XPC-RAD23B is the initial damage recognition factor in this system, as the presence of XPC-RAD23B is required for assembly of the other core NER factors and progression through the NER pathway both in vitro and in vivo
SIGNOR-275698
P16885
P06241
0
phosphorylation
up-regulates activity
0.575
The phosphorylation of purified phospholipase C-gamma 1 (PLC-gamma 1) and PLC-gamma 2 by src-family-protein tyrosine kinases (PTKs) P56lck, p53/56lyn, p59hck, p59fyn, and p60src was studied in vitro. All five PTKs phosphorylated PLC-gamma 1 and PLC-gamma 2, suggesting that both PLC-gamma isozymes can be phosphorylated in cells by any of the src-family PTKs in response to the activation of cell surface receptors.
SIGNOR-249340
Q9UBK2
Q13131
0
phosphorylation
up-regulates activity
0.575
Ampk phosphorylates pgc-1alpha directly both in vitro and in cells. These direct phosphorylations of the pgc-1alpha protein at threonine-177 and serine-538.
SIGNOR-156780
Q13882
P18031
0
dephosphorylation
down-regulates activity
0.575
Using a variety of PTEN mutant constructs, we show that protein phosphatase activity of PTEN targets PTK6, with efficiency similar to PTP1B, a phosphatase that directly dephosphorylates PTK6 Y342.
SIGNOR-277082
O15393
P10275
0
transcriptional regulation
up-regulates quantity by expression
0.575
The prostate-specific TMPRSS2 gene, while upregulated by AR activity in luminal cells, is also transcribed in basal populations, confirming that AR acts as an expression modulator.
SIGNOR-253687
O15350
P24941
0
phosphorylation
down-regulates activity
0.575
Cyclin-dependent kinases phosphorylate p73 at threonine 86 in a cell cycle-dependent manner and negatively regulate p73.Furthermore, cyclin a/cdk1/2, cyclin b/cdk1/2, and cyclin e/cdk2 complexes can phosphorylate multiple p73 isoforms in vitro at threonine 86.
SIGNOR-99746
P30307
P27348
0
relocalization
down-regulates
0.575
Cdc25c: nuclear exclusion/cytoplasmic sequestration via binding to 14-3-3 proteins.
SIGNOR-163237
P25189
Q01453
0
binding
up-regulates activity
0.575
Our data provide the first direct evidence for the formation of P0–PMP22 complexes at the plasma membrane. These protein interactions probably participate in holding adjacent Schwann cell membranes together and in stabilizing myelin compaction.
SIGNOR-251898
Q01860
P35222
0
binding
up-regulates activity
0.575
We provide evidence suggesting that Beta-catenin’s interaction with the pluripotency regulator Oct-4 at least partially underlies its effects on sustaining pluripotency.
SIGNOR-241981
Q92997
Q9ULV1
0
binding
up-regulates activity
0.575
Through study of FZD4 and its associated ligand Norrin, we report that a minimum of three residues distal to the KTXXXW motif in the C-terminal tail of Frizzled-4 are essential for DVL recruitment and robust Lef/Tcf-dependent transcriptional activation in response to Norrin.
SIGNOR-258961
Q04721
Q8NBL1
0
binding
up-regulates
0.575
O-glucosylation of epidermal growth factor-like (egf) repeats in the extracellular domain of notch is essential for notch function. O-glucose can be elongated by xylose to the trisaccharide, xylalfa1-3xylalfa1-3glcbeta1-o-ser, whose synthesis is catalyzed by the consecutive action of three glycosyltransferases. A udp-glucose:protein o-glucosyltransferase (poglut/rumi) transfers o-glucose to serine within the o-glucose consensus.
SIGNOR-198716
Q15910
P06493
0
phosphorylation
down-regulates
0.575
Cdk1, which phosphorylates ezh2 at threonines 345 and 487.Phosphorylation of thr-345 and thr-487 promotes ezh2 ubiquitination and subsequent degradation by the proteasome
SIGNOR-174058
P62136
P06493
0
phosphorylation
down-regulates activity
0.575
Both of these pp1 isoforms contain an arg-pro-ile/val-thr-pro-pro-arg sequence near the c terminus, a known site of phosphorylation by cdc/cdk kinases, and phosphorylation attenuates phosphatase activity.
SIGNOR-151799
Q15797
P46937
0
binding
up-regulates
0.575
Yap binds to the phosphorylated smad1 to activate gene transcription.
SIGNOR-201462
O95405
P29590
0
binding
up-regulates
0.574
Cytoplasmic pml physically interacts with smad2/3 and sara (smad anchor for receptor activation) and is required for association of smad2/3 with sara and for the accumulation of sara and tgf-beta receptor in the early endosome.
SIGNOR-128744
P61586
Q14344
0
binding
up-regulates
0.574
Ga12/13 recruitment of rho-gefs causes rhoa activation and f-actin assembly, which promotes lats1/lat2 inactivation by an unknown, but myosin-independent mechanism.
SIGNOR-192111
O75461
O14757
0
phosphorylation
down-regulates activity
0.574
the checkpoint kinase Chk1 phosphorylates E2F6 leading to its dissociation from promoters.
SIGNOR-266371
P63000
Q05397
0
phosphorylation
up-regulates activity
0.574
Both Src and FAK phosphorylate Rac1 at tyrosine 64.|Our investigations of direct interactions between Rac1, Src, and FAK were motivated by our previous insights into FAK augmentation of Rac1 activation during cell spreading, and the Cerione lab 's work on the interactions between Src and Cdc42 , .
SIGNOR-279652
Q9P2K8
Q13217
0
binding
down-regulates activity
0.574
€ we show that p58IPK is a general inhibitor of the eIF2 kinases in that it also interacts with GCN2
SIGNOR-246204
P43403
P06241
0
phosphorylation
up-regulates activity
0.574
Subsequently, Lck and Fyn phosphorylate and activate the Syk family kinase ZAP-70 when it is recruited to the phosphorylated ITAM motifs xref .
SIGNOR-279043
Q8N5C8
Q13546
0
binding
up-regulates activity
0.574
Tab2 and tab3 activate the jun n-terminal kinase and nuclear factor-kappab pathways through the specific recognition of lys 63-linked polyubiquitin chains by its npl4 zinc-finger (nzf) domain.
SIGNOR-161787
Q02750
P41279
0
phosphorylation
up-regulates
0.574
Activation of mek family kinases requires phosphorylation of two conserved ser/thr residues.Phosphopeptide analysis demonstrated that serine residues 218 and 222 of human mek1 are the primary sites for phosphorylation by c-raf
SIGNOR-36453
Q14344
P21731
0
binding
up-regulates activity
0.574
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-257139
Q16584
Q92918
0
phosphorylation
up-regulates
0.574
Hpk1 also phosphorylated mlk-3 activation loop in vitro, and ser281 was found to be the major phosphorylation site, indicating that hpk1 also activates mlk-3 via phosphorylation of the kinase activation loop.
SIGNOR-83415
P37231
Q00535
0
phosphorylation
down-regulates activity
0.574
CDK5 in turn phosphorylates PPARgamma at Ser273 and prevents the transcription of specific PPARgamma target genes that have anti-diabetic effects .
SIGNOR-278189
Q13485
O43541
0
binding
down-regulates activity
0.574
On the other hand, Smad6 competes with R-Smad and forms a non-functional complex with Smad4, which will inhibit BMP signaling in bone formation. Smad6 is involved in a negative feedback loop regulating BMP signaling and is required to limit BMP signaling during endochondral bone formation.
SIGNOR-195648
Q15011
Q86TM6
0
binding
up-regulates activity
0.574
FAM8A1 enhances binding of Herp to Hrd1, an interaction that is required for ERAD. Our findings support a model of Hrd1 complex formation, where the Hrd1 cytoplasmic domain and FAM8A1 have a central role in the assembly and activity of this ERAD machinery. A conserved Hrd1 cytoplasmic domain interacts with FAM8A1 and Herp
SIGNOR-261349
Q06413
Q92831
0
binding
up-regulates
0.573
The cofactors grip-1, cbp/p300 and pcaf have hat activity and function as co-activators for mef-2c during myogenesis.
SIGNOR-84032
Q15154
O00444
0
phosphorylation
up-regulates activity
0.573
Plk4‚Äêmediated phosphorylation of PCM1 at S372 is critical for the proper localisation of centriolar satellites, its dimer formation and interaction with other satellite components|Therefore, Plk4 is responsible for PCM1 phosphorylation at S372.
SIGNOR-279556
Q02156
O15530
0
phosphorylation
up-regulates
0.573
In the present study, we analysed the contribution of the phosphoinositide-dependent kinase 1 (pdk-1) and pkcepsilon kinase activity in controlling the phosphorylation of thr(566) and ser(729). pdk-1 phosphorylation of the activation loop triggers autophosphorylation of the hydrophobic motif
SIGNOR-117320
Q96EB6
Q15831
0
phosphorylation
up-regulates activity
0.573
 Resveratrol promotes the binding between LKB1 and Sirt1, which we first reported, and this binding leads to LKB1-mediated phosphorylation of Sirt1 at three different serine residues in the C terminus of Sirt1. Mechanistically, LKB1-mediated phosphorylation increases intramolecular interactions in Sirt1, such as the binding of the C terminus to the deacetylase core domain, thereby eliminating DBC1 (Deleted in Breast Cancer 1, Sirt1 endogenous inhibitor) inhibition and promoting Sirt1-substrate interaction. 
SIGNOR-277323
Q86XR7
Q02156
0
phosphorylation
up-regulates
0.573
Here we show that tram is transiently phosphorylated by pkcepsilon on serine-16 our study provides a possible target for these molecules in lps signaling. Dag may activate pkc?, Leading to the phosphorylation and activation of tram.
SIGNOR-146991
P50148
O14842
0
binding
up-regulates activity
0.573
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-257272
Q00653
P20749
0
binding
up-regulates
0.573
The cyclin d1 elevation is caused not by increased p65/p50 action but rather by increased nuclear activity of bcl-3-associated nf-kappab p50 and p52.
SIGNOR-146768
P01106
Q13526
0
binding
up-regulates
0.573
Pin1 prolyl isomerase enhances recruitment of serine 62-phosphorylated myc and its coactivators to select promoters during gene activation.
SIGNOR-202134