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14
P12931
O14746
1
phosphorylation
down-regulates
0.418
Hydrogen peroxide triggers nuclear export of telomerase reverse transcriptase via src kinase family-dependent phosphorylation of tyrosine 707
SIGNOR-102097
P18846
P35680
2
binding
up-regulates activity
0.307
The mammalian two-hybrid system showed that the region aa 393 to 476 of LFB3 is involved in the interaction with CREB or ATF1. The importance of this region for mediating cAMP induction was confirmed in transient transfection assays.
SIGNOR-241320
P40763
P08581
0
phosphorylation
up-regulates activity
0.706
It has been reported that c-Met can activate STAT3 at the endosome and phosphorylated STAT3 induced by c-Met is colocalized with EEA1, an early endosome marker.
SIGNOR-280041
P78368
O15534
1
phosphorylation
down-regulates
0.394
Ck1_ and ck1_2 can promote proteasome-dependent per1 degradation in mammalian tissue culture cells, and their removal by rnai leads to an increased abundance of per1.
SIGNOR-137751
Q96BI3
P49810
2
binding
up-regulates
0.923
Gamma secretase subunit. Leads to ps1/ps2 eterodimer complex stabilisation. By using co-immunoprecipitation and nickel affinity pull-down approaches, we now show that mammalian aph-1 (maph-1), a conserved multipass membrane protein, physically associates with nicastrin and the heterodimers of the presenilin amino- and carboxyl-terminal fragments in human cell lines and in rat brain.
SIGNOR-93265
P01116
Q92565
0
guanine nucleotide exchange factor
up-regulates
0.436
Gefs catalyse the transition from gdp-bound, inactive ras to gtp-bound, active ras.
SIGNOR-183735
Q96CW9
Q9HBW1
2
binding
up-regulates activity
0.73
The NGL (netrin-G ligand; LRRC4) family of synaptic cell adhesion molecules belongs to the superfamily of leucine-rich repeat (LRR) proteins. The three known members of the NGL family, NGL-1, NGL-2, and NGL-3, are mainly localized to the postsynaptic side of excitatory synapses, and interact with the presynaptic ligands, netrin-G1, netrin-G2, and LAR, respectively.
SIGNOR-264048
P01185
P30518
2
binding
up-regulates
0.738
We report here the cloning of a complementary dna encoding the hepatic v1a arginine vasopressin receptor. The liver cdna encodes a protein with seven putative transmembrane domains, which binds arginine vasopressin.
SIGNOR-20185
P0C0L4
P48740
0
cleavage
up-regulates activity
0.606
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-263438
P20248
Q6P3R8
2
binding
up-regulates activity
0.2
NEK5 promotes breast cancer cell proliferation through up-regulation of Cyclin A2
SIGNOR-273874
Q02962
P19544
2
transcriptional regulation
up-regulates quantity by expression
0.598
Cotransfection of Pax2 with the Wt1 reporter construct led to moderate activation of the Wt1 promoter.
SIGNOR-252290
P46100
O96006
2
binding
up-regulates activity
0.413
XNP/dATRX physically interacts with DREF. our results show that DREF is required for the proper expression of pnr and that XNP/dATRX binds to DREF at the DRE sites, resulting in the repression of pnr gene expression.
SIGNOR-239729
O96017
Q9H4B4
0
phosphorylation
up-regulates activity
0.66
Plk3 phosphorylates Chk2 at two residues, serine 62 (S62) and serine 73 (S73) in vitro, and this phosphorylation facilitates subsequent phosphorylation of Chk2 on T68 by ATM in response to DNA damage. When the Chk2 mutant construct GFP-Chk2 S73A (serine 73 mutated to alanine) is transfected into cells, it no longer associates with a large complex in vivo, and manifests a significant reduction in kinase activity. 
SIGNOR-276051
P35813
P84022
1
dephosphorylation
down-regulates activity
0.622
Ppm1a dephosphorylates and promotes nuclear export of tgfbeta-activated smad2/3; these results suggest that phospho-smad2 is a direct substrate of mg2+-dependent ppm1a. in conclusion, ppm1a is a bona fide phosphatase that directly dephosphorylates the critical sxs motif of r-smads.
SIGNOR-232110
P78317
P41229
1
sumoylation
up-regulates activity
0.2
Hendriks and coworkers showed that, in response to alkylation damage by methyl methanesulfonate (MMS), SUMOylated JARID1B (KDM5B) is ubiquitylated by the SUMOtargeted ubiquitin ligase RNF4 and degraded by the proteasome, whereas JARID1C (KDM5C) is SUMOylated and recruited to the chromatin to demethylate histone H3K4 (Hendriks et al., 2015).
SIGNOR-271576
Q92974
Q7KZI7
0
phosphorylation
down-regulates
0.503
We also show that par1b-induced serine 885/serine 959 phosphorylation inhibits rhoa-specific gef activity of gef-h1. As a consequence, gef-h1 phosphorylated on both of the serine residues loses the ability to stimulate rhoa and thereby fails to induce rhoa-dependent stress fiber formation
SIGNOR-177100
O60610
P61586
0
null
up-regulates activity
0.785
We find that the small GTPase Rho regulates R-cadherin adherens junction formation via Dia1 (also known as p140mDia) and profilin-1-mediated signaling pathway. The role played by Rho in regulating R-cadherin is underscored by the fact that constitutively active RhoA(Q63L) induces R-cadherin junction formation in MDA-MB-231 cells.|Data presented thus far demonstrated that Rho, Dia1, and profilin-1 were required for R-cadherin junction formation in N480 cells.
SIGNOR-253108
O43612
O43614
2
binding
up-regulates
0.776
Identification and initial biological characterization of two orexins as well as their two receptors
SIGNOR-55848
O14757
Q92934
1
phosphorylation
down-regulates activity
0.2
Chkl binds and phosphorylates BAD protein.|Taken together, our results suggest that Chk1 may inactivate BAD by associating with and phosphorylating residues critical for BAD function in response to DNA damage.
SIGNOR-279159
Q9UHD2
P06239
0
phosphorylation
down-regulates activity
0.2
The Src family kinases (SFKs) Lck, Hck, and Fgr directly phosphorylate TBK1 at Tyr354/394, to prevent TBK1 dimerization and activation. 
SIGNOR-276724
P36507
P27361
1
phosphorylation
up-regulates
0.742
The primary structure of mek, a protein kinase that phosphorylates the erk gene product
SIGNOR-19244
P16220
Q9Y2T3
1
transcriptional regulation
up-regulates quantity by expression
0.2
In addition, exposure of the neurons to BDNF increased CREB binding to the cypin promoter and, in line with these data, expression of a dominant negative form of CREB blocked BDNF-promoted increases in cypin protein levels and proximal dendrite branches.
SIGNOR-268968
P10398
Q15796
1
phosphorylation
down-regulates quantity by destabilization
0.37
Araf promotes Smad2 linker phosphorylation through S253.|In this study, we demonstrate that Araf can directly bind to and phosphorylate the linker of Smad2, leading to degradation of activated Smad2.
SIGNOR-279391
P01019-PRO_0000032458
P30556
2
binding
up-regulates activity
0.2
Ang II initiates most of the RAS-attributed physiologic effects through selective interactions with G-proteincoupled Ang II type 1 (AT1) or type 2 (AT2) receptors and subsequent activation of distinct intra cellular signaling pathways
SIGNOR-260238
P19338
P10242
2
binding
down-regulates activity
0.401
We identify nucleolin as one of the nuclear polypeptides that interact specifically with the A-Myb and c-Myb. We show that the interaction of nucleolin with Myb is functional because co-transfection of nucleolin down-regulates Myb transcriptional activity.
SIGNOR-221236
P20701
O60674
0
phosphorylation
up-regulates activity
0.268
PTKs of the JAK and SRC families have a regulatory role in LFA-1 affinity triggering, with JAKs showing a positive role (3), whereas SRCs possibly have a negative role.
SIGNOR-254739
Q16539
P47712
1
phosphorylation
up-regulates activity
0.668
These results provide the first direct evidence that p38 kinase is responsible for cpla2 phosphorylation in sfllrn-stimulated platelets and is involved in the early phosphorylation of cpla2 in thrombin-stimulated platelets
SIGNOR-44673
Q13200
Q9P1W9
0
phosphorylation
up-regulates activity
0.2
Seven of these kinases (PIM1/2/3, MAP4K1/2, PKA, and NEK6) directly and robustly phosphorylated recombinant GST-Rpn1 at S361 in vitro (Fig. 3D and SI Appendix, Fig. S3 A and B). 
SIGNOR-273896
P54727
P35244
2
binding
up-regulates activity
0.522
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-275700
P15927
O60934
2
binding
up-regulates
0.548
The response to replication stress requires the recruitment of rpa and the mre11-rad50-nbs1 (mrn) complex. We observe a direct interaction between rpa with both nbs1 and mre11. By utilizing rpa bound to ssdna, we demonstrate that substituting rpa with phosphorylated rpa or a phosphomimetic weakens the interaction with the mrn complex.
SIGNOR-186651
Q13164
P29590
1
phosphorylation
down-regulates activity
0.474
Big MAP kinase 1 (BMK1) also phosphorylates PML at two sites : S403 and T409.|Mutational analysis demonstrated that BMK1 drives suppression of PML directly through its phosphorylation.
SIGNOR-279074
Q8IVL1
Q9ULU4
0
transcriptional regulation
up-regulates quantity by expression
0.2
We also confirmed transcriptional coactivator functions of ZMYND8 in ERα-driven reporter assays and on endogenous E2-dependent genes (Figure 5F,G). siRNA knockdown of ZMYND8 showed markedly decreased transcription at the presumptive ERα/Z3 target genes ADORA1 and NAV2, while the classical ERα targets pS2/TFF1 and GREB1 appear to be less affected (Figure 5G), suggesting likely gene-specificity of ZMYND8. 
SIGNOR-266209
P35222
Q6P1J9
2
binding
up-regulates
0.695
Parafibromin/hyrax activates wnt/wg target gene transcription by direct association with beta-catenin/armadillo
SIGNOR-146282
P29350
Q14247
1
dephosphorylation
down-regulates activity
0.2
Shp1 interacts with cortactin and reduces cortactin phosphorylation at tyrosine 421; 3.|induction of Shp1-cortactin complex formation impairs cortactin scaffolding-activity and negatively affects invadopodia behaviour; 4.
SIGNOR-277003
Q13546
Q8WZ73
0
ubiquitination
down-regulates quantity by destabilization
0.468
We report that CARP-2, a RING domain-containing ubiquitin protein ligase (E3), is a negative regulator of TNF-induced NF-kappaB activation. By virtue of its phospholipid-binding FYVE domain, CARP-2 localized to endocytic vesicles, where it interacted with internalized TNF-receptor complex, resulting in RIP ubiquitination and degradation.
SIGNOR-271482
P06213
Q07666
1
phosphorylation
up-regulates activity
0.363
Thus, Tyr phosphorylation of Sam68 by IR could modulate its association with the splicing machinery in a similar way to that described for p59 fyn, and this way, it could influence splice site selection.
SIGNOR-278946
Q14596
Q13501
2
binding
up-regulates
0.472
Nbr1 and p62 interact and form oligomers.
SIGNOR-184273
P46734
Q5S007
0
phosphorylation
up-regulates activity
0.393
LRRK2 phosphorylates MKK3 and MKK7 in vitro but has a relatively minor effect on MKK6 phosphorylation.
SIGNOR-279057
Q16539
Q16690
0
dephosphorylation
down-regulates
0.537
The activity of mapks can be also regulated by a family of dusps, which dephosphorylates bot phosphotyrosine and phopsphothreonine residues.
SIGNOR-166574
Q96LB1
P09471
2
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-257260
Q86Y07
O75531
1
phosphorylation
down-regulates
0.502
We demonstrate that phosphorylation of ser4 and/or thr2/thr3 abrogates the interaction of baf with dna and reduces its interaction with the lem domain. Coexpression of vrk1 and gfp-baf greatly diminishes the association of baf with the nuclear chromatin/matrix and leads to its dispersal throughout the cell
SIGNOR-143368
Q6PHR2
P08151
1
phosphorylation
up-regulates activity
0.673
We show that ULK3 is able to phosphorylate three mammalian GLI proteins in vitro. | Our data suggest that serine/threonine kinase ULK3 is involved in the SHH pathway as a positive regulator of GLI proteins.
SIGNOR-260797
Q9H161
Q9UJU2
2
binding
up-regulates quantity by expression
0.445
Alx4 Stably Interacts with LEF-1. LEF-1 enhances Alx4 binding to DNA, suggesting that both interaction with LEF-1 and DNA binding are required to mediate its effects on the N-CAM promoter.
SIGNOR-254547
O14920
Q9UHD2
2
binding
up-regulates
0.403
A physical and functional map of the human tnf-alpha/nf-kappa b signal transduction pathway.
SIGNOR-121576
Q9NQU5
P35222
1
phosphorylation
down-regulates quantity
0.2
Moreover, we find that \u03b2-catenin is also localized with PAK6 in cell-cell junctions and is a novel PAK6 substrate.|PAK6 binds to and phosphorylates beta-catenin.
SIGNOR-279546
O14965
P68431
1
phosphorylation
up-regulates activity
0.2
Phosphorylation at ser-11 (h3s10ph) by aurkb is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis. Phosphorylation at ser-11 (h3s10ph) by aurkb is crucial for chromosome condensation and cell-cycle progression during mitosis and meiosis.
SIGNOR-98289
P33076
Q92769
0
deacetylation
down-regulates quantity by repression
0.413
We report that CIITA and histone deacetylase 2 (HDAC2) interact in smooth muscle cells and macrophages as assayed by co-immunoprecipitations. HDAC2 deacetylates CIITA whereas both the HDAC inhibitor trichostatin A (TSA) and over-expression of HDAC2 interfering RNA increase CIITA acetylation. HDAC2 down-regulates CIITA recruitment to target promoters as evidenced by chromatin immunoprecipitation assays, and suppresses MHC II activation and collagen repression mediated by CIITA in luciferase reporter assays.
SIGNOR-254231
P36897
O75604
0
deubiquitination
up-regulates activity
0.2
Here, we report the role of USP2a in promoting metastasis by facilitating TGF-β-triggered signaling. USP2a interacts with TGFBR1 and TGFBR2 upon TGF-β stimulation and removes K33-linked polyubiquitin chains from Lys502 of TGFBR1, promoting the recruitment of SMAD2/3. Simultaneously, TGFBR2 phosphorylates Ser207/Ser225 of USP2a, leading to the disassociation of SMAD2/3 from TGFBR1.
SIGNOR-273605
O60341
Q96BD5
2
binding
down-regulates activity
0.716
BHC80 Inhibits LSD1 Demethylase Activity In Vitro. in contrast to CoREST, which is a positive regulator of LSD1 activity, the in vitro evidence presented above suggests that BHC80 may function to inhibit LSD1 activity.
SIGNOR-264505
P15172
P17252
0
phosphorylation
down-regulates activity
0.363
FGF inactivates myogenic helix-loop-helix proteins through phosphorylation of a conserved protein kinase C site in their DNA-binding domains.
SIGNOR-248845
Q14493
P0C0S5
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-265408
Q6UB99
Q9BR76
1
transcriptional regulation
up-regulates quantity by expression
0.2
Neurite growth-related genes such as Trkb, Bdnf, Gap43, Coronin 1B, and Rab13 are downregulated in ANKRD11-deficient neurons. 
SIGNOR-266737
P06493
O15151
1
phosphorylation
down-regulates
0.407
Cdc2p34 phosphorylates mdmx on ser 96 in vitro. Mutation within this site (mdmx(s96a)) impairs, whereas phosphomimic substitution (mdmx(s96d)) increases the cytoplasmic localization of mdmx, suggesting that cdk2/cdc2p34 phosphorylation is required for export of mdmx from the nucleus
SIGNOR-134388
Q9NR19
Q13131
0
phosphorylation
up-regulates activity
0.275
This translocation is mediated by AMP-activated protein kinase (AMPK)-dependent ACSS2 Ser659 phosphorylation and subsequent exposure of the nuclear localization signal of ACSS2 to KPNA1/importin α5 for binding. In the nucleus, ACSS2 forms a complex with TFEB (transcription factor EB) and utilizes the acetate generated from histone deacetylation to locally produce acetyl-CoA for histone acetylation in the promoter regions of TFEB target genes.
SIGNOR-271822
O75581
P12830
2
binding
up-regulates
0.363
P12Beta-catenin_ also associates to the_ wnt_ co-receptor lrp5/6, an interaction mediated by e-cadherin.
SIGNOR-168464
P49910
Q969W9
1
transcriptional regulation
down-regulates quantity by repression
0.271
ZNF165 drives the unrestrained activation of transforming growth factor β (TGFβ) signalling by directly inactivating the expression of negative feedback pathway regulators, SMURF2, SMAD7 and PMEPA1.
SIGNOR-266094
P28356
O00470
2
binding
up-regulates activity
0.508
We find that DNA binding by MEIS1A is absolutely required for the formation of a cooperative complex with HOXD9
SIGNOR-220721
Q9UN19
P06239
0
phosphorylation
up-regulates activity
0.646
Src family kinases mediate receptor-stimulated, phosphoinositide 3-kinase-dependent, tyrosine phosphorylation of dual adaptor for phosphotyrosine and 3-phosphoinositides-1 in endothelial and B cell lines|yrosine phosphorylation of DAPP-1 appears important for appropriate intracellular targeting and creates a potential binding site for Src homology 2 domain-containing proteins.
SIGNOR-249373
Q9Y4L5
P01106
1
ubiquitination
down-regulates quantity by destabilization
0.448
These results suggest that Rabring7 antagonizes function of c-Myc possibly through degradation of c-Myc.|Unexpectedly, we found that Rabring7 more strongly binds to c-Myc than to MM-1 (XREF_FIG) and that Rabring7 stimulates poly-ubiquitination of c-Myc in a T58 dependent manner (XREF_FIG).
SIGNOR-278662
Q07817
Q14457
2
binding
down-regulates
0.915
The anti-apoptotic proteins bcl-2 and bcl-x(l) bind and inhibit beclin-1, an essential mediator of autophagy.
SIGNOR-154480
P67775
Q8TD08
1
dephosphorylation
down-regulates
0.289
Erk8 (extracellular-signal-regulated protein kinase 8) expressed in escherichia coli or insect cells was catalytically active and phosphorylated at both residues of the thr-glu-tyr motif. Dephosphorylation of the threonine residue by pp2a (protein serine/threonine phosphatase 2a) decreased erk8 activity by over 95% in vitro, whereas complete dephosphorylation of the tyrosine residue by ptp1b (protein tyrosine phosphatase 1b) decreased activity by only 15-20%
SIGNOR-142977
Q9NQ66
P63092
2
binding
up-regulates activity
0.324
The beta- but not the gamma- and delta-type isozymes of inositol phospholipid-specific phospholipase c (plc) are activated by g protein alpha q and beta gamma subunits.
SIGNOR-265066
Q96GD4
Q92974
1
phosphorylation
down-regulates activity
0.25
The mitotic kinases Aurora A/B and Cdk1/Cyclin B phosphorylate GEF-H1, thereby inhibiting GEF-H1 catalytic activity.
SIGNOR-276062
P12644
Q04206
0
transcriptional regulation
down-regulates quantity by repression
0.2
Co-transfection with pCMV4-RelA alone or in combination with pCMV4p50 repressed pSLA4.1 EX-Lux activity by approximately 75 percent in both H441 and A549 cells 
SIGNOR-266087
P84022
P59595
2
binding
up-regulates activity
0.2
In this study, we demonstrate that SARS-associated coronavirus (SARS-CoV) nucleocapsid (N) protein potentiates transforming growth factor-beta (TGF-beta)-induced expression of plasminogen activator inhibitor-1 but attenuates Smad3/Smad4-mediated apoptosis of human peripheral lung epithelial HPL1 cells. The promoting effect of N protein on the transcriptional responses of TGF-beta is Smad3-specific. N protein associates with Smad3 and promotes Smad3-p300 complex formation while it interferes with the complex formation between Smad3 and Smad4. These findings provide evidence of a novel mechanism whereby N protein modulates TGF-beta signaling to block apoptosis of SARS-CoV-infected host cells and meanwhile promote tissue fibrosis.
SIGNOR-260434
P08603
P01024
2
binding
down-regulates activity
0.918
As a regulator of the alternative pathway, FH binds to C3b and inhibits the binding of factor B to C3b, acts as a cofactor for the factor I-mediated cleavage of C3b to iC3b (cofactor activity), and accelerates the decay of C3bBb, the alternative pathway C3 convertase (decay-accelerating activity)
SIGNOR-252141
P12830
Q05655
0
phosphorylation
down-regulates activity
0.2
Phosphorylation of E-cadherin at threonine 790 by protein kinase Cδ reduces β-catenin binding and suppresses the function of E-cadherin.
SIGNOR-260893
P12931
O14744
1
phosphorylation
down-regulates activity
0.261
Here, we demonstrate that PRMT5 is phosphorylated at residue Y324 by Src kinase, a negative regulator of its activity.
SIGNOR-277523
P23246
Q9UM73
0
phosphorylation
down-regulates
0.2
Furthermore, psf was shown to be a direct substrate of purified alk kinase domain in vitro, and psf tyr293 was identified as the site of phosphorylation. Psf phosphorylation also increased its binding to rna and decreased the psf-mediated suppression of gage6 expression.
SIGNOR-155298
Q99836
Q9Y4K3
2
binding
up-regulates activity
0.922
In innate immunity, nearly all Toll-like receptors (TLRs), as well as the receptors of the interleukin 1 (IL-1) family of cytokines, initiate signaling by recruiting the adaptor protein MyD88. This is followed by the interaction of IL-1-receptor (IL-R)-associated kinase 4 (IRAK4) with MyD88 and then the interaction of other IRAK family members with IRAK4, to form an oligomeric complex, termed the Myddosome (8, 9). IRAK1 and IRAK2 can then interact with TRAF6 (10, 11) and induce TRAF6 dimerization (12), which triggers the activation of its E3 ligase activity
SIGNOR-260160
P37173
P36897
1
phosphorylation
up-regulates activity
0.722
Recent studies have revealed that upon TGF-beta binding several serine and threonine residues in the GS domain of TGF-beta type I receptor (T beta R-I) are phosphorylated by TGF-beta type II receptor (T beta R-II) and that the phosphorylation of GS domain is essential for TGF-beta signalingThese observations indicate that serine 172 and threonine 176 of T beta R-I are dispensable for extracellular matrix protein production but essential to the growth inhibition by TGF-beta
SIGNOR-246728
Q92985
Q9UHD2
0
phosphorylation
up-regulates activity
0.768
In most cell types, IRF7 is phosphorylated and activated by IKK\u03b5 and TBK1 after viral infection.|We found that phosphorylation of IRF7 on Ser477 and Ser479 by IKK\u03b5 or TBK1 is inhibited by ORF45.
SIGNOR-278216
O00141
P14672
1
phosphorylation
up-regulates activity
0.312
We evaluated the putative role of sgk1 in the modulation of glut4. Coexpression of the kinase along with glut4 in xenopus oocytes stimulated glucose transport. The enhanced glut4 activity was paralleled by increased transporter abundance in the plasma membrane. Disruption of the sgk1 phosphorylation site on glut4 ((s274a)glut4) abrogated the stimulating effect of sgk1. In summary, sgk1 promotes glucose transporter membrane abundance via glut4 phosphorylation at ser274.
SIGNOR-236653
Q99523
P02649
2
binding
up-regulates quantity
0.427
Here, we identified the pro-neurotrophin receptor sortilin as major endocytic pathway for clearance of APOE/Aβ complexes in neurons. Sortilin binds APOE with high affinity. Lack of receptor expression in mice results in accumulation of APOE and of Aβ in the brain and in aggravated plaque burden. Sortilin interacts with all human APOE isoforms.
SIGNOR-273721
Q13191
P10721
1
ubiquitination
down-regulates activity
0.328
KIT binds to and induces the phosphorylation of Cbl proteins, which in turn act as E3 ligases, mediating the ubiquitination and degradation of KIT and themselves. Tyrosine kinase binding and RING finger domains of Cbl are essential for Cbl-mediated ubiquitination and degradation of KIT.
SIGNOR-260105
Q9Y243
O15111
1
phosphorylation
up-regulates
0.414
Although there are likely to be multiple levels of crosstalk between the pi3k-akt and nf-kb pathways, one mechanism has been attributed to direct phosphorylation of the amino acid residue t23 on ikb kinase alfa (ikkalfa) by akt, thereby leading to activation of this kinase upstream of nf-kb akt mediates ikkalpha phosphorylation at threonine 23 akt transiently associates in vivo with ikk and induces ikk activation. Akt mediates ikkalfa phosphorylation at threonine 23.Akt phosphorylates ikkalpha on t23, and this phosphorylation event is a prerequisite for the phosphorylation of p65 at s534 by ikkalpha and beta
SIGNOR-187062
Q01718
P42127
2
binding
down-regulates activity
0.498
The melanocortin (MC) receptor family consists of five Gs-coupled receptors that control various physiological functions in response to four distinct agonists, adrenocorticotropic hormone (ACTH, also known as corticotrophin) and α, β, and γ melanocyte–stimulating hormone (MSH), which are derived from the proopiomelanocortin precursor protein, and two inverse agonists, agouti and agouti-related proteins
SIGNOR-268695
P00519
Q8N488
2
binding
down-regulates
0.333
We identified a novel protein, aap1 (abl-associated protein 1), that associates with these c-abl domains and fails to bind to the sh3 domain in the activated oncoprotein bcrabl. we conclude that aap1 inhibits c-abl tyrosine kinase activity
SIGNOR-45325
Q8WZ42
O15273
2
binding
up-regulates activity
0.908
TCAP, a core sarcomeric component capping the titin proteins, was identified as a positive hit (Figure 1A). TCAP is a small (19 kDa), highly abundant cytoplasmic protein expressed exclusively in skeletal muscle and the heart (Valle et al., 1997). TCAP interacts with titin through its N-terminal beta sheet to anchor titin to the Z-disc
SIGNOR-264854
O43889
P68400
0
phosphorylation
down-regulates quantity by destabilization
0.2
Here, we found that human CREB3 is phosphorylated within its transcription activation domain on serine 46 by protein kinase CK2. However, phosphorylation at serine 46 reduced the stability of CREB3.
SIGNOR-277501
O75155
Q15386
0
ubiquitination
down-regulates quantity by destabilization
0.39
We show that KIAA10 indeed associates with 26 S proteasomes in mammalian cells but that this interaction is likely to depend on contacts with a subunit(s) besides S2/Rpn1. Most importantly, we provide strong evidence that TIP120B (TBP-interacting protein 120B (22)) is a specific substrate that is targeted for degradation in skeletal muscle through KIAA10-catalyzed polyubiquitination.
SIGNOR-271454
Q13237
Q12778
1
phosphorylation
up-regulates activity
0.356
Biochemical assays using mammalian cGKII and FoxO1 reveal that cGKII enhances the transcriptional activity of FoxO1 through phosphorylation of the FoxO1 S319 site in the same manner as LRRK2.
SIGNOR-279564
P0DP25
Q96RR4
2
binding
up-regulates
0.588
The ca2+-calmodulin-dependent protein kinase (cam kinase) cascade includes three kinases: cam-kinase kinase (camkk);and the cam kinases camki and camkiv, which are phosphorylated and activated by camkk.
SIGNOR-266345
P25103
O95837
2
binding
up-regulates activity
0.433
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-257423
Q9H981
Q13315
0
phosphorylation
down-regulates activity
0.2
These findings indicate that ATM dependent phosphorylation on ARP8-S412 reduces ARP8 INO80 interaction.|These findings raised the possibility that ATM negatively regulates the interaction of ARP8 with INO80 after etoposide treatment.
SIGNOR-279437
O15151
P31749
0
phosphorylation
up-regulates quantity by stabilization
0.509
We demonstrate that the serine/threonine kinase akt mediates phosphorylation of mdmx at ser367. This phosphorylation leads to stabilization of mdmx and consequent stabilization of mdm2.
SIGNOR-252517
P11388
P05129
0
phosphorylation
up-regulates activity
0.359
Here, we have shown that the enzymatic activity of topoisomerase II alpha protein purified from HeLa cell nuclei was strongly enhanced following phosphorylation by protein kinase C. | Site-directed mutagenesis studies indicated that phosphorylation of serine 29 generated both of these phosphopeptides.
SIGNOR-249196
Q04206
O14920
0
phosphorylation
up-regulates activity
0.886
Rela is phosphorylated at ser536 by ikkbeta, ikkalfa, ikkepsilon, nf-kb activating kinase (nak, also known as tank-binding kinase-1 tbk1) and rsk1 (also known as p90 ribosomal protein s6 kinase (p90s6k). We now present evidence that suggests that the upstream kinase ikkbeta plays an important role in tax-induced p53 inhibition through phosphorylation of p65/rela at ser-536. Ikkbeta plays an important role in tax-induced p53 inhibition through phosphorylation of p65/rela at ser-536.
SIGNOR-138903
P12830
P48730
0
phosphorylation
down-regulates activity
0.27
Casein kinase 1 is a novel negative regulator of E-cadherin-based cell-cell contacts|CK1 colocalizes with E-cadherin and phosphorylates the cytoplasmic domain of E-cadherin in vitro and in a cell culture system. We show that the major CK1 phosphorylation site of E-cadherin is serine 846
SIGNOR-274046
O94826
P07900
2
binding
up-regulates activity
0.2
The Tom70 receptor is a membrane-localized cochaperone that integrates the Hsp70/Hsp90 chaperones with mitochondrial preprotein targeting and translocation. In mammals, preprotein in the cytosol is associated with both Hsp90 and Hsp70 in a multichaperone complex, and docking of Hsp90 and/or Hsp70 onto Tom70 is essential for preprotein targeting.
SIGNOR-261379
P68363
Q14980
2
binding
up-regulates
0.263
Direct binding of numa to tubulin is mediated by a novel sequence motif in the tail domain that bundles and stabilizes microtubules.
SIGNOR-116472
P36894
Q13253
2
binding
down-regulates activity
0.611
Noggin binds the domain that is re-quired for bmp-7 to interact with bmp type i and type ii receptors (PMID 22298955).Noggin Inhibits bmp by blocking the molecular interfaces of the binding epitopes for both type i and type ii receptors.
SIGNOR-219221
Q9UPY8
Q96GD4
0
phosphorylation
up-regulates
0.472
Phosphorylation of eb3 at s176 by aurora b ensures successful cytokinesis completion by promoting midbody mt stability and midbody stabilization.
SIGNOR-202130
P68400
Q9ULV4
1
phosphorylation
up-regulates
0.2
We demonstrate that crn2 is a binding partner and substrate of protein kinase ck2, which phosphorylates crn2 at s463 in its c-terminal coiled coil domain
SIGNOR-196193
P35222
P33151
2
binding
up-regulates activity
0.76
At its C-terminus, cadherin interacts with β-catenin, which dynamically associates with α-catenin, a direct binding partner of filamentous actin
SIGNOR-265867
P50052
P01019-PRO_0000032458
2
binding
up-regulates activity
0.2
Ang II initiates most of the RAS-attributed physiologic effects through selective interactions with G-proteincoupled Ang II type 1 (AT1) or type 2 (AT2) receptors and subsequent activation of distinct intra cellular signaling pathways
SIGNOR-260237
Q03431
P50148
2
binding
up-regulates activity
0.275
This calciotropic hormone exerts its actions via binding to the PTH/PTH-related peptide receptor (PTH1R), which couples to multiple heterotrimeric G proteins, including Gs and Gq/11.
SIGNOR-270550
Q9P0J1
P24752
0
acetylation
down-regulates activity
0.34
We previously reported that the mitochondrial fraction of FLT3 activates acetyl-CoA acetyltransferase ACAT1 in mitochondria via Y407 phosphorylation to acetylate and inhibit mitochondrial pyruvate dehydrogenase A (PDHA) and PDH phosphatase 1 (PDP1)
SIGNOR-267635
P01375
P19438
2
binding
up-regulates activity
0.925
For TNFR1, the cytokine TNFα binds to the receptor and triggers its trimerization, which leads to the assembly of the receptor complex and initiation of signaling.
SIGNOR-199091
P01106
Q9ULJ6
0
transcriptional regulation
up-regulates quantity by expression
0.362
The N-terminal domain (NTD) of Zmiz1 is important for driving Myc transcription and proliferation […] Zmiz1 directly interacted with Notch1 via a tetratricopeptide repeat domain at a special class of Notch-regulatory sites.
SIGNOR-263939