IdA
stringlengths 6
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| IdB
stringlengths 6
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| labels
int64 0
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| mechanism
stringclasses 40
values | effect
stringclasses 10
values | score
float64 0.1
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stringlengths 10
1.63k
⌀ | signor_id
stringlengths 12
14
|
|---|---|---|---|---|---|---|---|
Q15759
|
O75582
| 1
|
phosphorylation
|
up-regulates
| 0.615
|
Mitogen- and stress-activated protein kinase-1 (msk1) is directly activated by mapk and sapk2/p38, and may mediate activation of crebactivated by phosphorylation at ser-360, thr-581 and thr-700 by mapk1/erk2, mapk3/erk1 and mapk14/p38-alpha
|
SIGNOR-59443
|
P04637
|
P53778
| 0
|
phosphorylation
|
up-regulates activity
| 0.474
|
Furthermore, upon activation by oncogenic ras, p38gamma stimulated the transcriptional activity of p53 by phosphorylating p53 at Ser(33), suggesting that the ability of p38gamma to mediate senescence is at least partly achieved through p53.
|
SIGNOR-280026
|
O15111
|
O14920
| 1
|
phosphorylation
|
up-regulates activity
| 0.67
|
Our data indicate that IKKα stimulates IKKβ kinase activity for the IκBα substrate. Finally, we demonstrate that IKKα can phosphorylate IKKβ in in vitro kinase assays.
|
SIGNOR-250772
|
Q99835
|
Q9UBI6
| 2
|
binding
|
up-regulates
| 0.2
|
As pka suppresses the activity of gli, smo might use the stimulation of pi3k by galfai and gbetagamma subu- nits to block pka in cells that have high levels of camp.
|
SIGNOR-152817
|
P01106
|
P50750
| 0
|
phosphorylation
|
down-regulates activity
| 0.54
|
CDK9 promotes phosphorylation of MYC on Ser 62 .
|
SIGNOR-279024
|
P05129
|
P06127
| 1
|
phosphorylation
|
up-regulates
| 0.341
|
Cd5 is a good pkc substrate. Phosphorylation of cd5 is necessary for cd5-mediated lipid second messenger generation.
|
SIGNOR-85183
|
P43405
|
Q9GZY6
| 1
|
phosphorylation
|
up-regulates activity
| 0.592
|
Our results indicated that human LAB was primarily phosphorylated on three membrane-distal tyrosines, Tyr(136), Tyr(193), and Tyr(233). Mutation of these three tyrosines abolished Grb2 binding and LAB function. Our data suggested that these tyrosines are the most important tyrosines for LAB function.The dramatic reduction in phosphorylation of the LAB Y233F mutant suggested that Tyr233 is a primary target of the Syk family kinases.
|
SIGNOR-273576
|
P49841
|
P04198
| 1
|
phosphorylation
|
down-regulates quantity by destabilization
| 0.33
|
Because GSK3\u03b2 phosphorylates Nmyc at T58, we assessed GSK3\u03b2 activation in Dex-treated MB cells.
|
SIGNOR-279722
|
P38405
|
O00254
| 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-256904
|
P06493
|
Q8NHV4
| 1
|
phosphorylation
|
up-regulates activity
| 0.585
|
Here we report that the function of Nedd1 is regulated by Cdk1 and Plk1. During mitosis, Nedd1 is firstly phosphorylated at T550 by Cdk1, which creates a binding site for the polo-box domain of Plk1. Then, Nedd1 is further phosphorylated by Plk1 at four sites: T382, S397, S637 and S426. The sequential phosphorylation of Nedd1 by Cdk1 and Plk1 promotes its interaction with gamma-tubulin for targeting the gammaTuRC to the centrosome and is important for spindle formation.
|
SIGNOR-272973
|
O00429
|
P00519
| 0
|
phosphorylation
|
up-regulates activity
| 0.26
|
In this study, we found that c-Abl phosphorylated Drp1 at tyrosine 266, 368 and 449 in vitro and in vivo, which augmented the GTPase activity of Drp1 and promoted Drp1-mediated mitochondrial fragmentation.
|
SIGNOR-277328
|
P04637
|
Q92630
| 0
|
phosphorylation
|
up-regulates
| 0.67
|
Here, we demonstrate that the dual-specificity tyrosine-phosphorylation-regulated kinase 2 (dyrk2) directly phosphorylates p53 at ser46. these findings indicate that dyrk2 regulates p53 to induce apoptosis in response to dna damage.
|
SIGNOR-153544
|
Q92847
|
Q9UBU3
| 2
|
binding
|
up-regulates
| 0.722
|
In contrast to wild-type mice, acute treatment of ghsr- mice with ghrelin stimulated neither gh release nor food intake, showing that the ghsr is a biologically relevant ghrelin receptor.
|
SIGNOR-123948
|
Q14444
|
Q13283
| 2
|
binding
|
up-regulates activity
| 0.588
|
Caprin-1 and G3BP-1 were directly or indirectly associated in a stable complex. The Caprin-1/G3BP-1 complex occurs in cytoplasmic RNA granules
|
SIGNOR-260982
|
P11831
|
P78527
| 0
|
phosphorylation
|
up-regulates activity
| 0.406
|
The carboxyl-terminal transcription activation domain was mapped within a 71-amino acid region that contains both DNA-PK phosphorylation sites. Amino acid substitutions that interfered with phosphorylation by DNA-PK at Ser-435/446 in GAL4-SRF fusion proteins were reduced in transactivation potency. From these data we suggest that DNA-PK phosphorylation may modulate SRF activity in vivo.
|
SIGNOR-248922
|
P27361
|
P10636-2
| 1
|
phosphorylation
|
down-regulates activity
| 0.501
|
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-275434
|
P18846
|
O75676
| 0
|
phosphorylation
|
up-regulates
| 0.615
|
Msk1 and msk2 directly phosphorilate and activate transcription factors such as creb1, atf1.
|
SIGNOR-116252
|
O15303
|
P63092
| 2
|
binding
|
up-regulates activity
| 0.34
|
MGluRs are members of the G-protein-coupled receptor (GPCR) superfamily, the most abundant receptor gene family in the human genome. GPCRs are membrane-bound proteins that are activated by extracellular ligands such as light, peptides, and neurotransmitters, and transduce intracellular signals via interactions with G proteins. The resulting change in conformation of the GPCR induced by ligand binding activates the G protein, which is composed of a heterotrimeric complex of α, β, and γ subunits.
|
SIGNOR-264084
|
P0DP25
|
P29474
| 2
|
binding
|
up-regulates activity
| 0.565
|
Electrons flow from the C-terminal reductase domain of one NOS monomer to the N-terminal oxygenase domain of the other NOS monomer (Siddhanta et al., 1998). The primary mode of enzyme activation is the binding of calcium-bound calmodulin to the N-terminal CaM-binding domain. This facilitates a structure change and the flow of electrons from NADPH through the flavins to the oxygenase domain of the other eNOS monomer
|
SIGNOR-266339
|
Q53GL7
|
Q13283
| 1
|
post translational modification
|
up-regulates activity
| 0.2
|
Further, we pinpoint the core SG component, G3BP1, as a PARP10 substrate and find that PARP10 regulates SG assembly driven by both G3BP1 and its modeled mechanism. Intriguingly, while PARP10 only adds a single ADP-ribose unit to proteins, G3BP1 is PARylated, suggesting its potential role as a scaffold for protein recruitment. PARP10 knockdown alters the SG core composition, notably decreasing translation factor presence.
|
SIGNOR-273727
|
Q96GD4
|
Q53HL2
| 1
|
phosphorylation
|
up-regulates activity
| 0.82
|
AURKB directly phosphorylated CDCA8 at Ser(154), Ser(219), Ser(275), and Thr(278) and seemed to stabilize CDCA8 protein in cancer cells.|Phosphorylation and activation of cell division cycle associated 8 by aurora kinase B plays a significant role in human lung carcinogenesis.
|
SIGNOR-279506
|
Q8NB16
|
P30530
| 0
|
phosphorylation
|
up-regulates quantity by stabilization
| 0.2
|
TAM kinases phosphorylate MLKL to promote necroptosis. MLKL is then recruited to the plasma membrane, where TAM kinases phosphorylate MLKL at Tyr376 (Figure 5G, step 5), promoting its oligomerization and formation of membrane-rupturing pores that result in necrotic cell death (Figure 5G, step 6).
|
SIGNOR-274119
|
Q05901
|
O00468
| 2
|
binding
|
up-regulates activity
| 0.2
|
Treatment of muscle cells with neural agrin causes tyrosine phosphorylation of the AChR β subunit and induces AChR clustering by promoting anchoring of the receptor protein to postsynaptic cytoskeleton. Regulation of acetylcholine receptor clustering by the tumor suppressor APC. By showing a direct requirement for APC in AChR clustering, our present study suggests that the Wnt/β-catenin pathway may crosstalk with the agrin signaling cascade during the formation of mammalian neuromuscular junction.
|
SIGNOR-264260
|
P00533
|
Q13332
| 0
|
dephosphorylation
|
down-regulates activity
| 0.43
|
Similarly, Pestana et al. (89) have reported that overexpression of RPTPsigma in human A431 carcinoma cells partially inhibits EGFR activation, whereas antisense mediated suppression of RPTPsigma expression enhances EGFR activation, substrate phosphorylation, and signalling.|These data indicate that LAR and RPTPsigma may have a significant role in GPCR induced EGFR signalling.Whereas in A431 cells LAR and RPTPsigma may act to suppress the EGFR in response to GPCR activation, it is possible that the converse may also be true in other cell types.
|
SIGNOR-277145
|
Q8IVH8
|
Q13233
| 1
|
phosphorylation
|
up-regulates
| 0.453
|
With regard to at least mekk1, serine/threonine kinases such as nik,glkand hpk1 appear also to be important for regulation
|
SIGNOR-61814
|
P25116
|
P63096
| 2
|
binding
|
up-regulates
| 0.402
|
Upon proteolysis, the newly formed n terminus acts as a tethered ligand that activates the receptor and initiates signaling cascades through multiple g proteins (galfaq, galfai, and galfa12/13).
|
SIGNOR-196009
|
Q13829
|
Q13618
| 2
|
binding
|
up-regulates activity
| 0.461
|
BACURDs form ubiquitin ligase complexes, which selectively ubiquitinate RhoA, with Cul3. Our studies reveal a previously unknown mechanism for controlling RhoA degradation and regulating RhoA function in various biological contexts, which involves a Cul3/BACURD ubiquitin ligase complex.
|
SIGNOR-264232
|
Q15054
|
P17612
| 0
|
phosphorylation
|
down-regulates
| 0.2
|
In this study, we identified s458, located in the pcna-interacting protein (pip-box) motif of p68, as a phosphorylation site for pka. Phosphomimetic mutation of s458 resulted in a decrease in p68 affinity for pcna as well as the processivity of pol _.
|
SIGNOR-195203
|
Q02156
|
P17302
| 1
|
phosphorylation
|
down-regulates activity
| 0.44
|
Phosphorylation of connexin43 on serine368 by protein kinase C regulates gap junctional communication.|These data strongly suggest that PKC directly phosphorylates Cx43 on S368 in vivo, which results in a change in single channel behavior that contributes to a decrease in intercellular communication.
|
SIGNOR-144465
|
Q14114
|
P06241
| 0
|
phosphorylation
|
up-regulates quantity
| 0.635
|
Fyn phosphorylates ApoER2.|Together these data demonstrate that Fyn activity is necessary for its effects increasing ApoER2 levels.
|
SIGNOR-278197
|
P27361
|
O95997
| 1
|
phosphorylation
|
up-regulates
| 0.304
|
Pttg is phosphorylated in vitro on ser(162) by map kinase and this phosphorylation site plays an essential role in pttg transactivation function.
|
SIGNOR-79519
|
Q96GD4
|
Q9P2J3
| 2
|
binding
|
up-regulates activity
| 0.71
|
Aurora B Interacts with the Cul3 Complex during Mitosis and Is Ubiquitylated in a Cul3-Dependent Manner In Vivo and In Vitro. our results suggest that Cul3/KLHL9/KLHL13 activity is required to remove the chromosomal passenger protein Aurora B from mitotic chromosomes, and that Aurora B is ubiquitylated in vivo and in vitro in a KLHL9/13-dependent manner. We conclude that the Cul3/KLHL9/KLHL13 E3 ligase is an important cell-cycle regulator which, in addition to the anaphase-promoting complex (APC), coordinates mitotic progression and completion of cytokinesis.
|
SIGNOR-271658
|
P12931
|
P04637
| 1
|
phosphorylation
|
down-regulates quantity by destabilization
| 0.524
|
We recently found that ISGylation of the p53 tumor suppressor is an important novel mechanism to control its stability. Here we identified that Isg15-dependent regulation of p53 can be enhanced by different oncogenes. We further show that the Src-mediated phosphorylation of p53 on Tyr126 and Tyr220 has a positive effect on p53 ISGylation by enhancing Herc5 binding.
|
SIGNOR-276668
|
Q15796
|
Q13233
| 0
|
phosphorylation
|
up-regulates activity
| 0.474
|
As yet, the apparent discrepancy between these and above data is not clear, but obviously the type of cell under study and the cellular context may play an important role.In endothelial cells, Smad2 activity is stimulated by MEKK1, a component of the Stress Activated Protein Kinase and c-Jun N terminal kinase (SAPK and JNK) pathway.|Phosphorylation of Smad2 by MEKK1 increased its association with Smad4, its nuclear accumulation and its transcription induction activity .
|
SIGNOR-279064
|
P19474
|
Q13501
| 1
|
ubiquitination
|
down-regulates activity
| 0.404
|
TRIM21 directly ubiquitylates p62 at residue K7 to inhibit its oligomerization and sequestration function.|TRIM21 negatively regulates p62 mediated sequestration of Keap1 and antioxidant response.
|
SIGNOR-278602
|
P49116
|
Q86VZ6
| 2
|
binding
|
down-regulates
| 0.453
|
Tip27 interacts specifically with tak1 / tip27 functions as a tak1-selective repressor
|
SIGNOR-127900
|
Q9UKB1
|
Q9HAW4
| 1
|
ubiquitination
|
down-regulates
| 0.345
|
Claspin degradation was triggered by its interaction with, and ubiquitylation by, the scfbetatrcp ubiquitin ligase.
|
SIGNOR-148438
|
Q9NXA8
|
P11413
| 1
|
catalytic activity
|
up-regulates activity
| 0.278
|
Here, we report that SIRT5 desuccinylates and deglutarylates isocitrate dehydrogenase 2 (IDH2) and glucose-6-phosphate dehydrogenase (G6PD), respectively, and thus activates both NADPH-producing enzymes.
|
SIGNOR-261211
|
Q9NXV6
|
Q00987
| 0
|
ubiquitination
|
down-regulates
| 0.37
|
Carf interacts with hdm2 and is ubiquitinated and negatively regulated by hdm2 by proteasome-dependent degradation.
|
SIGNOR-160974
|
Q93098
|
O75581
| 2
|
binding
|
up-regulates
| 0.617
|
Wnt proteins bind to the frizzled receptors and lrp5/6 co-receptors, and through stabilizing the critical mediator betBeta-catenin, initiate a complex signaling cascade that plays an important role in regulating cell proliferation and differentiation.
|
SIGNOR-132027
|
P07947
|
P46937
| 1
|
phosphorylation
|
up-regulates activity
| 0.721
|
Yes directly phosphorylates YAP and TAZ, resulting in their increased nuclear localization and transcriptional activity.Analysis by mass spectrometry identified Tyr391 and Tyr407 as the two phosphorylation sites of YAP, whereas Tyr305 was the sole phosphorylated residue of TAZ (Fig. 5F and fig. S4, A to C).
|
SIGNOR-277653
|
O60566
|
O14757
| 0
|
phosphorylation
|
up-regulates activity
| 0.447
|
Nonetheless, in our experimental system a Chk1-dependent BubR1 phosphorylation was also observed after Noc treatment.|Possible requirement of Chk1 in U2OS cells to activate the mitotic spindle checkpoint proteins Mad2 and BubR1.
|
SIGNOR-280223
|
P04406
|
Q5XX13
| 0
|
polyubiquitination
|
up-regulates activity
| 0.2
|
Mechanistically, FBXW10 promotes GAPDH polyubiquitination and activation; VRK2-dependent phosphorylation of GAPDH Ser151 residue is critical for GAPDH ubiquitination and activation.
|
SIGNOR-277841
|
P25963
|
Q14164
| 0
|
phosphorylation
|
down-regulates quantity by destabilization
| 0.484
|
The activated ikk complex then phosphorylates ikbalfa (an inhibitor of nf-kb) thereby targeting it for ubiquitination and proteasomal degradation.
|
SIGNOR-167524
|
P16104
|
O76064
| 0
|
ubiquitination
|
up-regulates
| 0.2
|
Rnf8 can ubiquitylate histone h2a and h2ax,
|
SIGNOR-159309
|
P68363
|
Q8NG68
| 0
|
tyrosination
|
down-regulates
| 0.46
|
Tubulin tyrosine ligase (ttl) adds a c-terminal tyr to __tubulin as part of a tyrosination/detyrosination cycle present in most eukaryotic cells. / ttl inhibits spontaneous tubulin polymerization
|
SIGNOR-176915
|
P06241
|
P35222
| 1
|
phosphorylation
|
down-regulates activity
| 0.851
|
Interaction of beta-catenin with alpha-catenin is regulated by the phosphorylation of beta-catenin Tyr-142. This residue can be phosphorylated in vitro by Fer or Fyn tyrosine kinases. Transfection of these kinases to epithelial cells disrupted the association between both catenins.
|
SIGNOR-251162
|
Q13485
|
P28482
| 0
|
phosphorylation
|
up-regulates
| 0.511
|
Phosphorylation of thr276 is shown to be important for tgf-?-Induced nuclear accumulation and, as a consequence, transcriptional activity of smad4. these results suggest that smad4 can be phosphorylated by erk2 at thr276.
|
SIGNOR-101660
|
P62826
|
O43592
| 2
|
binding
|
up-regulates activity
| 0.815
|
The first step in export appears to be the formation of a trimeric tRNA/exportin-t/RanGTP complex. tRNA and RanGTP bind to exportin-t in a highly cooperative manner: tRNA increases the affinity of exportin-t for RanGTP apparently 300-fold (Figure 5A); conversely, RanGTP has to increase the affinity of exportin-t for tRNA by the same factor. RanGTP appears to have at least two functions in this complex. First, it stabilizes the tRNA/exportin-t interaction (see Figure 4B). Second, exportin-t apparently has to bind RanGTP for rapid exit from the nucleus
|
SIGNOR-261392
|
Q969H0
|
Q96KS0
| 1
|
ubiquitination
|
down-regulates quantity by destabilization
| 0.349
|
Mechanistically, we further show that FBW7, an E3 ligase complex component that is frequently downregulated in TNBC, negatively regulates EglN2 protein stability.
|
SIGNOR-261997
|
P55210
|
Q13177
| 0
|
phosphorylation
|
down-regulates
| 0.351
|
Pak2 can bind with caspase-7 and phosphorylate caspase-7 at the ser-30, thr-173, and ser-239 sites. Functionally, the phosphorylation of caspase-7 decreases its activity, thereby inhibiting cellular apoptosis.
|
SIGNOR-173655
|
O43303
|
Q12798
| 2
|
binding
|
up-regulates activity
| 0.483
|
We report that CP110 interacts with two different Ca2+-binding proteins, calmodulin (CaM) and centrin, in vivo. our data demonstrate a functional role for CaM binding to CP110 and suggest that CP110 cooperates with CaM and centrin to regulate progression through cytokinesis.
|
SIGNOR-265966
|
P00519
|
Q92466
| 1
|
phosphorylation
|
down-regulates
| 0.458
|
C-abl might act as a negative regulator of uv-ddb by phosphorylating ddb2
|
SIGNOR-90446
|
O75444
|
P35452
| 2
|
binding
|
down-regulates activity
| 0.367
|
Hoxd12 and MHox, that interact with v-/c-Maf, using the phage display method. The Hox proteins also could associate with the other Maf protein family members, MafB, MafK, MafF, and MafG, but not with Jun and Fos. The Hox proteins negatively regulated the DNA binding, transactivation and cell-transforming abilities of Maf.
|
SIGNOR-221887
|
Q9UQ26
|
P20336
| 1
|
relocalization
|
up-regulates activity
| 0.762
|
N-terminal interactions of RIMs with RAB3 and MUNC13 regulate DCV fusion. Through N-terminal interactions, RIMs position MUNC13 and recruit DCVs via RAB3, which is located on the vesicle
|
SIGNOR-264377
|
P11802
|
Q06413
| 2
|
binding
|
down-regulates
| 0.283
|
In contrast to cdk2, cyclin d/cdk4 blocks myod activity through an as yet unclear mechanism that may involve direct binding. Cyclin d/cdk4 can also block the activity of myogenin and all mef2 isoforms.
|
SIGNOR-176518
|
P01111
|
P42338
| 2
|
binding
|
up-regulates
| 0.668
|
Grb2 binds and activates sos, which then activates ras, and this activates p110 independently of p85./it was also described that ras interacts with pi3k in a direct manner./lysine residue 227 is essential for the interaction of ras with pi3k
|
SIGNOR-175225
|
P51617
|
Q99836
| 2
|
binding
|
up-regulates activity
| 0.848
|
Interleukin-1 (il-1) stimulates the association of the il-1 receptor-associated protein kinase (irak) with the heterodimer of il-iri and il-iracp via the adapter protein myd88. Myd88 binds to both irak (il-1 receptor-associated kinase) and the heterocomplex (the signaling complex) of the two receptor chains and thereby mediates the association of irak with the receptor.
|
SIGNOR-67143
|
Q8IWL8
|
P00519
| 0
|
phosphorylation
|
up-regulates activity
| 0.2
|
STH interacts with tau and Abl, and Abl phosphorylates STH on its single tyrosine residue.
|
SIGNOR-279353
|
P15056
|
Q02750
| 1
|
phosphorylation
|
up-regulates activity
| 0.789
|
Activation of mek family kinases requires phosphorylation of two conserved ser/thr residueserine residues 218 and 222 of human mek1 are the primary sites for phosphorylation by c-raf.
|
SIGNOR-235475
|
P49841
|
Q13976
| 0
|
phosphorylation
|
down-regulates activity
| 0.26
|
Moreover, PrkG1 inhibits GSK3\u03b2 by binding and directly phosphorylating GSK3\u03b2 at its serine-9 residue (Zhao et al., xref ).|Moreover, PrkG1 inhibits GSK3beta by binding and directly phosphorylating GSK3beta at its serine 9 residue.
|
SIGNOR-280094
|
Q9BXM7
|
P99999
| 1
| null |
down-regulates quantity
| 0.382
|
There is a strong cyto-protective role of PINK1 in maintaining mitochondrial homeostasis via different mechanisms. Overexpression of wild-type PINK1 in SH-SY5Y neuroblastoma cells stabilizes respiring mitochondrial networks through various mechanisms that include maintaining mitochondrial membrane potential, reducing basal and neurotoxin-induced ROS, suppression of cytochrome c release, reversal of toxin-induced fission, and suppression of autophagy
|
SIGNOR-249704
|
P23443
|
P08151
| 1
|
phosphorylation
|
up-regulates
| 0.523
|
In this study, we found that an activated mtor/s6k1 pathway promotes gli1 transcriptional activity and oncogenic function through s6k1-mediated gli1 phosphorylation at ser84, which releases gli1 from its endogenous inhibitor, sufu.
|
SIGNOR-196756
|
Q13188
|
P31749
| 0
|
phosphorylation
|
down-regulates
| 0.356
|
We determined that mst2 phosphorylation by akt limits mst2 activity in two ways: first, by blocking its binding to rassf1a and by promoting its association into the raf-1 inhibitory complex, and second, by preventing homodimerization of mst2, which is needed for its activation. we identified t117 and t384 as akt phosphorylation sites in mst2.
|
SIGNOR-163533
|
Q9Y6E7
|
P15336
| 0
|
transcriptional regulation
|
down-regulates quantity by repression
| 0.2
|
Our data suggest that mTORC1 promotes the binding of the E3 ligase, βTrCP, to CREB2 (Figure 4D), promoting CREB2 degradation by the proteasome (Figure 4E). Here, we show that mTORC1 promotes glutamine anaplerosis by activating glutamate dehydrogenase (GDH). This regulation requires transcriptional repression of SIRT4, the mitochondrial-localized sirtuin that inhibits GDH. Mechanistically, mTORC1 represses SIRT4 by promoting the proteasome-mediated destabilization of cAMP-responsive element binding 2 (CREB2).
|
SIGNOR-267831
|
P28482
|
P41182
| 1
|
phosphorylation
|
down-regulates
| 0.489
|
Here we show that antigen receptor activation leads to bcl-6 phosphorylation by mitogen-activated protein kinase (mapk). Phosphorylation, in turn, targets bcl-6 for rapid degradation by the ubiquitin/proteasome pathway.
|
SIGNOR-58481
|
O15055
|
P49674
| 0
|
phosphorylation
|
down-regulates quantity by destabilization
| 0.902
|
Priming-independent clusters located in the C-terminal portion of PER2’s PAS domains are targeted by CK1ε/δ and are required for ubiquitin ligase–mediated degradation of PER2
|
SIGNOR-277419
|
Q7Z6J0
|
P45983
| 2
|
binding
|
up-regulates
| 0.371
|
Posh activates jnk1 in cos-1 cells.
|
SIGNOR-55759
|
Q9HC98
|
Q13200
| 1
|
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-273894
|
Q06187
|
Q08881
| 2
|
phosphorylation
|
up-regulates
| 0.497
|
Tec family protein tyrosine kinases (tfks) play a central role in hematopoietic cellular signaling. Initial activation takes place through specific tyrosine phosphorylation situated in the activation loop. Further activation occurs within the sh3 domain via a transphosphorylation mechanismthe major phosphorylation sites were identified as conserved tyrosines, for itk y180
|
SIGNOR-98036
|
Q16513
|
O15530
| 0
|
phosphorylation
|
up-regulates
| 0.705
|
It is shown that activation in vitro and in vivo involves the activation loop phosphorylation of prk1/2 by 3-phosphoinositide-dependent protein kinase-1 (pdk1) /pdk1 phosphorylates the prks at their conserved activation loop threonines (thr-774 and thr-816 for prk1 and prk2, respectively)
|
SIGNOR-76710
|
P37231
|
P46934
| 0
|
ubiquitination
|
up-regulates activity
| 0.386
|
First, NEDD4 interacts with and ubiquitinates PPARgamma.|NEDD4 increases PPARgamma stability through the inhibition of its proteasomal degradation.
|
SIGNOR-278540
|
Q13153
|
P49593
| 0
|
dephosphorylation
|
down-regulates activity
| 0.39
|
The p21-activated kinase PAK is negatively regulated by POPX1 and POPX2, a pair of serine/threonine phosphatases of the PP2C family|POPX Can Dephosphorylate and Downregulate PAK| To confirm that POPX2 acts on αPAK phospho-Thr422, a key regulator of activity in the kinase activation loop [9], we used phospho-specific antibodies against αPAK P-Thr422 (Figure 3B, lower panel), which proved to be an excellent substrate for POPX2. Similarly, complete loss of αPAK P-Ser57 with 0.2 μg POPX2 contrasts with the slight loss observed with 1.5 μg PP1. On the basis of these results, we suggest PAK is a substrate of POPX.
|
SIGNOR-248530
|
Q9UHD2
|
O95865
| 1
|
phosphorylation
|
down-regulates activity
| 0.2
|
TANK-binding kinase 1 (TBK1), a kinase downstream of MAVS, inhibited DDAH2 by phosphorylating DDAH2 at multiple sites. |The T203D, T211D, S245D, and S253D mutations significantly reduced the inhibitory effect of DDAH2 on RLR signaling, suggesting that phosphorylation of these residues was critical for DDAH2 to inhibit activation o
|
SIGNOR-275648
|
O14757
|
P06493
| 0
|
phosphorylation
|
up-regulates
| 0.411
|
Chk1 itself is also subject to cdk-mediated phosphorylation at serines 286 and 301 (s286 and 301). We show that chk1 s301 phosphorylation increases as cells progress through s and g2 and that both cdk1 and cdk2 are likely to contribute to this modification in vivo. We also find that substitution of s286 and s301 with non-phosphorylatable alanine residues strongly attenuates dna damage-induced chk1 activation and g2 checkpoint proficiency
|
SIGNOR-175071
|
Q9UBF6
|
P67870
| 0
|
phosphorylation
|
up-regulates activity
| 0.329
|
In the present study, we show the evidence that CKBBP1 is phosphorylated on threonine residue at position 10 by CKII in vitro and in vivo. Most importantly, disruption of this phosphorylation in CKBBP1 results in accumulation of IκBα and p27Kip1 in HeLa cells and inhibits cell proliferation that appears to be linked to defects in G1/S transition.
|
SIGNOR-251081
|
P55211
|
P06493
| 0
|
phosphorylation
|
down-regulates
| 0.429
|
Here, we show that the apoptotic initiator protease caspase-9 is regulated during the cell cycle through periodic phosphorylation at an inhibitory site, thr125. This site is phosphorylated by cdk1/cyclin b1 during mitosis and in response to microtubule poisons that arrest cells at this stage of the cell cycle.
|
SIGNOR-141621
|
P35968
|
P35790
| 0
|
phosphorylation
|
down-regulates quantity by destabilization
| 0.249
|
Here, we show for the first time a possible mechanism by which CKI dependent phosphorylation of VEGFR2 at specific sites in its C-terminal tail triggers SCF beta-TRCP -mediated VEGFR2 ubiquitination and destruction.
|
SIGNOR-279029
|
P29350
|
P35968
| 1
|
dephosphorylation
|
down-regulates activity
| 0.668
|
Src homology 2 (SH2) domain containing protein tyrosine phosphatase-1 (SHP-1) dephosphorylates VEGF Receptor-2 and attenuates endothelial DNA synthesis, but not migration|Knockdown of SHP-1 by siRNA or inhibition of c-Src by an inhibitor, results in augmented DNA synthesis perhaps due to increased phosphorylation of at least three tyrosine residues of KDR 996, 1059 and 1175
|
SIGNOR-248474
|
Q12809
|
Q96PU5
| 0
|
ubiquitination
|
down-regulates quantity by destabilization
| 0.399
|
As quantified in Fig. 5 B, only Nedd4-2 significantly increased the basal ubiquitylation of hERG1, while Nedd4-2-C801S and the other ubiquitin ligases had no effect.|The major findings of this study are as follows : 1) hERG1 interacts via its PY motif with the ubiquitin ligase Nedd4-2, 2) this interaction promotes the down-regulation of the functional form of the channel at the plasma membrane through Nedd4-2 ubiquitylation of the channel, and 3) I hERG1 is strongly decreased by Nedd4-2 catalytic dependent activity.The hERG1 PY motif is a highly conserved sequence across animal species lines, highlighting its crucial role in the regulation of the hERG1 channel at the cell surface.
|
SIGNOR-278771
|
P21452
|
P08754
| 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-256879
|
Q92890
|
Q8TAT6
| 2
|
binding
|
up-regulates activity
| 0.2
|
These findings ascribe specific functions to each of the components of the VCP-UFD1L-NPL4 complex in Vpu-mediated CD4 degradation: VCP energizes the process through ATP binding and hydrolysis, UFD1L binds ubiquitinated CD4 through recognition of K48 Ub chains, and NPL4 stabilizes UFD1L. VCP is thus likely to provide the energy required for extraction of CD4 from membranes.
|
SIGNOR-252422
|
P23508
|
Q13535
| 0
|
phosphorylation
|
up-regulates activity
| 0.2
|
MCC is phosphorylated at the ATM/ATR consensus sites Ser118 and Ser120. Finally, mutation of S118/120 to alanine did not affect MCC nuclear shuttling following UV but did impair MCC G2/M checkpoint activity.
|
SIGNOR-273514
|
Q04759
|
O15530
| 0
|
phosphorylation
|
up-regulates
| 0.572
|
We demonstrate that 3-phosphoinositide-dependent kinase 1 (pdk1) has an essential role in this pathway by regulating the activation of pkc and through signal-dependent recruiting of both pkc and card11 to lipid rafts.
|
SIGNOR-134869
|
P25090
|
P08754
| 2
|
binding
|
up-regulates activity
| 0.435
|
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-256745
|
P63092
|
P30550
| 2
|
binding
|
up-regulates activity
| 0.25
|
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 ‚â• -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 ‚â• -1.0 for defining true couplings. | The score associated to this interaction has a LogRAi ‚â• -1.0.
|
SIGNOR-256774
|
Q14012
|
Q8N5S9
| 0
|
phosphorylation
|
up-regulates activity
| 0.414
|
Human calcium-calmodulin dependent protein kinase I: cDNA cloning, domain structure and activation by phosphorylation at threonine-177 by calcium-calmodulin dependent protein kinase I kinase.
|
SIGNOR-250717
|
P84243
|
P49336
| 0
|
phosphorylation
|
down-regulates activity
| 0.2
|
However, within T/G-Mediator, cdk8 phosphorylates serine-10 on histone H3, which in turn stimulates H3K14 acetylation by GCN5L within the complex. Tandem phosphoacetylation of H3 correlates with transcriptional activation, and ChIP assays demonstrate co-occupancy of T/G-Mediator components at several activated genes in vivo.
|
SIGNOR-273173
|
O00141
|
Q96J92
| 1
|
phosphorylation
|
up-regulates activity
| 0.415
|
In addition, we identified a novel SGK1 phosphorylation site (S1201) in WNK4, and phosphorylation at this site is reduced by Ca(2+)/CaM.
|
SIGNOR-276421
|
P98177
|
P11233
| 0
|
phosphorylation
|
up-regulates activity
| 0.2
|
We conclude that Ral-mediated phosphorylation of threonines 447 and 451 is required for proper activity of AFX-WT.
|
SIGNOR-249665
|
P67775
|
Q9Y243
| 1
|
dephosphorylation
|
down-regulates activity
| 0.738
|
Protein phosphatase 2A negatively regulates insulin's metabolic signaling pathway by inhibiting Akt (protein kinase B) activity in 3T3-L1 adipocytes
|
SIGNOR-248654
|
P42574
|
P49137
| 0
|
phosphorylation
|
up-regulates activity
| 0.311
|
MK2 Phosphorylates Caspase-3, Facilitates Nuclear Translocation of Caspase 3, and Regulates Apoptosis.|Over-expression of MK2 led to an increase in nuclear caspase-3 activity.
|
SIGNOR-278960
|
Q99836
|
P14778
| 2
|
binding
|
up-regulates activity
| 0.945
|
Interleukin-1 (il-1) stimulates the association of the il-1 receptor-associated protein kinase (irak) with the heterodimer of il-iri and il-iracp via the adapter protein myd88.
|
SIGNOR-67140
|
Q99835
|
P63211
| 2
|
binding
|
up-regulates
| 0.2
|
Consistent with its predicted topology, smo couples to a specific family of inhibitory g protein (gis) to regulate hh signaling.
|
SIGNOR-148601
|
Q13433
|
P43403
| 0
|
phosphorylation
|
up-regulates activity
| 0.2
|
To summarize, upon TCR triggering Zap70 activates Zip6, which is localized to the IS, through phosphorylation of tyrosine residues likely located in the long cytoplasmic loop.|Zip6 Is Phosphorylated by Zap70 in Response to TCR Stimulation.
|
SIGNOR-280165
|
Q8N165
|
Q05D32
| 0
|
dephosphorylation
|
up-regulates quantity by stabilization
| 0.356
|
We found that peptides corresponding to phosphoserines 194 and 216 of PDIK1L (S385 and S413 of STK35) were efficiently dephosphorylated by SCP4, whereas no activity was detected for the other two phosphopeptides (Figure 6D).
|
SIGNOR-273773
|
Q8TEW6
|
P07949
| 2
|
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
|
Q9BX84
|
P63244
| 2
|
binding
|
down-regulates activity
| 0.2
|
We identified RACK1 as the first TRPM6-associated protein and demonstrated that RACK1 inhibits TRPM6 channel activity depending on the phosphorylation state T1851 in the α-kinase domain.
|
SIGNOR-260921
|
P60953
|
Q96P48
| 0
|
gtpase-activating protein
|
down-regulates activity
| 0.531
|
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-260452
|
P19086
|
Q9HC97
| 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-257112
|
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