IdA
stringlengths
6
21
IdB
stringlengths
6
21
labels
float64
0
2
mechanism
stringclasses
40 values
effect
stringclasses
10 values
score
float64
0.1
0.99
sentence
stringlengths
10
1.63k
signor_id
stringlengths
12
14
P63279
P05412
1
sumoylation
down-regulates activity
0.42
We report here that lysine 265 of c-Fos is conjugated by the peptidic posttranslational modifiers SUMO-1, SUMO-2, and SUMO-3 and that c-Jun can be sumoylated on lysine 257 as well as on the previously described lysine 229. Sumoylation of c-Fos preferentially occurs in the context of c-Jun/c-Fos heterodimers.|Inhibition of c-Fos and c-Jun sumoylation stimulates AP-1-dependent transcription activity.
SIGNOR-263001
P24158
P25116
1
cleavage
down-regulates activity
0.42
PAR1E and PAR2E (10 microM) were incubated in the presence of the different proteases | The enzymes were used at the following concentrations: 0.5 unit/mL thrombin, 2.5 nM trypsin, 20 nM plasmin, 20 nM cathepsin G, 20 nM elastase, 20 nM proteinase 3, and 2 units/mL calpain I and II|Protease-activated receptors (PARs) mediate cell activation after proteolytic cleavage of their extracellular amino terminus.|Protease-activated receptors (PARs) mediate cell activation after proteolytic cleavage of their extracellular amino terminus.|Plasmin, calpain and leukocyte elastase, cathepsin G, and proteinase 3 cleaved at multiple sites and would be expected to disable PAR1 by cleaving COOH-terminal to the activation site.
SIGNOR-263577
O00712
Q14938
1
transcriptional regulation
up-regulates quantity
0.42
We report that, in the absence of Nfia or Nfib, there is a marked reduction in the spinal cord expression of NFIX, and that NFIB can transcriptionally activate Nfix expression in vitro. These data demonstrate that NFIX is part of the downstream transcriptional program through which NFIA and NFIB coordinate gliogenesis within the spinal cord.
SIGNOR-268870
P12931
P29474
1
phosphorylation
up-regulates activity
0.42
Two kinases, i.e. abelson-tyrosine protein kinase (ABL)1 and Src were identified as eNOS Tyr81 kinases as their inhibition and down-regulation significantly reduced the basal and Yoda1-induced tyrosine phosphorylation and activity of eNOS.
SIGNOR-277520
P45983
O15350
1
phosphorylation
up-regulates activity
0.42
Therefore, it is likely that p73 recruitment to the \u0394Np73 promoter is mediated by its JNK-1-dependent phosphorylation.
SIGNOR-279219
P27361
P14598
1
phosphorylation
up-regulates
0.42
Upon activation, several serine residues on the cytosolic oxidase subunit p47phox become phosphorylated. Mitogen-activated protein kinase phophorylated only the peptide containing ser345/348.
SIGNOR-40821
Q13315
Q7L7X3
1
phosphorylation
up-regulates
0.42
The dna damage kinase ataxia telangiectasia mutated (atm) phosphorylates taos in vitro;radiation induces phosphorylation of tao on a consensus site for phosphorylation by the atmprotein kinase in cells.
SIGNOR-154171
Q13362
P27361
2
binding
down-regulates
0.42
B56-containing pp2a dephosphorylate erk and their activity is controlled by the early gene iex-1 and erk
SIGNOR-144328
Q8NFP9
Q92796
1
binding
up-regulates activity
0.42
Interestingly, a recent proteomic analysis (Lauks et al., 2012) revealed that Nbea binds SAP102, which interacts with glutamate receptors early in the biosynthetic route and regulates their targeting. This finding, along with the interaction of Nbea with the glycine receptor beta subunit (del Pino et al., 2011), further strengthens the notion that Nbea targets neurotransmitter receptors to synapses.
SIGNOR-266004
Q00535
P07197
1
phosphorylation
down-regulates quantity
0.42
Converse to the effect of PKA overexpression, overexpression of CDK5 and its activator, p35, decreased the association between spinophilin and NF-M as well as the expression of NF-M.|Moreover, CDK5 phosphorylates NF-M [ xref ], and this was also apparent in our data, given a dramatic molecular weight shift in the NF-M band following CDK5 overexpression.
SIGNOR-279683
Q9UHD2
P42345
1
phosphorylation
up-regulates activity
0.42
They later demonstrated that TANK-binding kinase 1 (TBK1) interacts with and phosphorylates mTOR on Ser 2159, to promote catalytic activity of mTOR [216].
SIGNOR-278237
Q7Z6Z7
O95140
1
ubiquitination
down-regulates quantity by destabilization
0.42
AMBRA1 regulates mitophagy at two critical steps. Upon mitophagy stimulation, AMBRA1 mediates the HUWE1 E3 ubiquitin ligase translocation from cytosol to mitochondria (light blue). AMBRA1 acts as a cofactor for HUWE1 E3 ubiquitin ligase activity, favouring its binding to its substrate MFN2 (and maybe other OMM substrates) and targeting it to the proteasome
SIGNOR-272978
P31751
P98170
1
phosphorylation
up-regulates
0.42
Here, we demonstrate that akt, including akt1 and akt2, interacts with and phosphorylates x-linked inhibitor of apoptosis protein (xiap) at residue serine-87 in vitro and in vivo. Phosphorylation of xiap by akt protects xiap from ubiquitination and degradation in response to cisplatin. Moreover, autoubiquitination of xiap is also inhibited by akt.
SIGNOR-119492
Q13164
P14921
1
phosphorylation
up-regulates
0.42
9-cis retinoid x receptor alpha (rxr alpha) interacted with erk2 but not erk5 in intact cells, whereas ets-1 interacted preferentially with erk5. Increased phosphorylation of rxr alpha and ets-1 was detected in response to 1,25d. Activated erk2 and erk5 specifically phosphorylated rxr alpha and ets-1, respectively.Mutagenesis of ets-1 (t38a) reduced cyp24 promoter activity to levels observed with the dominant-negative mek5(a) and inhibited erk5-directed phosphorylation. Mutated rxr alpha (s260a) inhibited 1,25d-induced cyp24 promoter activity and abolished phosphorylation by activated erk2.
SIGNOR-88666
P52306
P62834
1
binding
up-regulates
0.42
Smggds has been previously shown to activate a wide variety of small gtpases, including the ras family members rap1a, rap1b, and k-ras, as well as the rho family members cdc42, rac1, rac2, rhoa, and rhob
SIGNOR-171482
P27361
Q13362
2
phosphorylation
down-regulates
0.42
Iex-1 binds to b56 subunits and perk independently, enhances b56 phosphorylation by erk at a conserved ser/pro site in this complex and triggers dissociation from the catalytic subunit.
SIGNOR-144317
Q8NE79
Q15836
1
binding
up-regulates activity
0.42
Taken together, these data demonstrate that Bves interacts with VAMP3 and facilitates receptor recycling both in vitro and during early development.
SIGNOR-237771
Q9UH99
P20339
1
binding
up-regulates activity
0.42
Rab5ip represents a novel rab5 interacting protein that may function on endocytic vesicles as a receptor for rab5-GDP and participate in the activation of rab5
SIGNOR-261309
P11309
P36888
1
phosphorylation
up-regulates quantity
0.42
Pim-1 Kinase Phosphorylates and Stabilizes 130 kDa FLT3 and Promotes Aberrant STAT5 Signaling in Acute Myeloid Leukemia with FLT3 Internal Tandem Duplication[...]Pim-1 inhibition also decreased phosphorylation of FLT3 at tyrosine 591 and of STAT5, and expression of Pim-1 itself, consistent with inhibition of the FLT3-ITD-STAT5 signaling pathway.
SIGNOR-259927
Q7KZI7
Q7L804
1
phosphorylation
up-regulates
0.42
We identified the kinase that phosphorylated rab11-fip2 as mark2/emk1/par-1balpha (mark2), and recombinant mark2 phosphorylated rab11-fip2 only on serine 227. In calcium switch assays, cells expressing rab11-fip2(s227a) showed a defect in the timely reestablishment of p120-containing junctional complexes.
SIGNOR-147118
Q00535
Q8N5V2
1
phosphorylation
up-regulates activity
0.42
Importantly, ephexin1, a Rho GEF, is phosphorylated by Cdk5 in vivo .
SIGNOR-279021
P06493
Q8NEB9
1
phosphorylation
down-regulates
0.42
We show that vps34 is phosphorylated on thr159 by cdk1, thr159 phosphorylation negatively regulates the ptdins3 kinase activity of vps34 and autophagy
SIGNOR-165768
O15169
Q9Y6R4
1
binding
up-regulates
0.42
Mekk4, also binds to axin in vivo and mediates axin-induced jnk activation.
SIGNOR-104003
Q13177
Q9BUB5
1
phosphorylation
down-regulates activity
0.42
Phosphorylation of Mnk1 by caspase-activated Pak2/gamma-PAK inhibits phosphorylation and interaction of eIF4G with Mnk. When 293T cells are subjected to apoptotic induction by hydrogen peroxide, Mnk1 is phosphorylated at both Thr(22) and Ser(27). These results indicate a role for Pak2 in the down-regulation of translation initiation in apoptosis by phosphorylation of Mnk1.
SIGNOR-250221
P34925
O14641
1
binding
up-regulates
0.419
Ryk also binds to dishevelled, through which it activates the canonical wnt, providing a link between wnt and dishevelled.
SIGNOR-129571
Q96L34
P10636
1
phosphorylation
down-regulates activity
0.419
AMPK phosphorylation inhibits tau binding of microtubules. In order to study further the phosphorylation of tau by AMPK, we compared phosphorylation of tau by MARK4 or AMPK using a panel of phospho-tau antibodies (Figure 2A). Five phosphorylation sites common to both kinases were identified (Thr231, Ser262, Ser356, Ser396 and Ser422). In addition, AMPK, but not MARK4, was capable of phosphorylating Ser214 (Figure 2A).
SIGNOR-273935
P46934
P42261
1
ubiquitination
down-regulates quantity
0.419
Finally, we show that ubiquitination of GluA1 by Nedd4-1 becomes more prevalent as neurons mature.|The ability of Nedd4-1 to reduce surface GluA1 levels required its ligase activity, since co-expression of a catalytically-inactive version of Nedd4-1 (Nedd4-1 CS) did not decrease surface GluA1 levels .
SIGNOR-278572
Q8TEW6
P12931
1
binding
up-regulates
0.419
Insulin receptor-phosphorylated irs5/dok4 associates with rasgap, crk, src, and fyn, but not phosphatidylinositol 3-kinase p85, grb2, shp-2, nck, or phospholipase cgamma src homology 2 domains, and activates mapk in cells.
SIGNOR-101002
P00519
P00533
1
phosphorylation
up-regulates
0.419
we show that activated Abl phosphorylates the EGFR primarily on tyrosine 1173Furthermore, we show that activated Abl allows the ligand-activated EGFR to escape Cbl-dependent down-regulation by inhibiting the accumulation of Cbl at the plasma membrane in response to epidermal growth factor stimulation and disrupting the formation of the EGFR.Cbl complex without affecting Cbl protein stability. These findings reveal a novel role for Abl in promoting increased cell-surface expression of the EGFR and suggest that Abl/EGFR signaling may cooperate in human
SIGNOR-149277
P10827
P13631
2
binding
up-regulates
0.419
We report that the retinoic acid receptors (rars), a distinct class of nuclear receptors, are also efficient heterodimer partners for trs.
SIGNOR-133246
Q9H2X6
O15297
1
phosphorylation
down-regulates quantity by destabilization
0.419
HIPK2 phosphorylates WIP1 at Ser54 and Ser85, and phosphorylated WIP1 is subject to proteasomal degradation so that WIP1 is maintained at low levels.
SIGNOR-278230
Q96L34
P10636-5
1
phosphorylation
down-regulates activity
0.419
AMPK phosphorylation inhibits tau binding of microtubules. In order to study further the phosphorylation of tau by AMPK, we compared phosphorylation of tau by MARK4 or AMPK using a panel of phospho-tau antibodies (Figure 2A). Five phosphorylation sites common to both kinases were identified (Thr231, Ser262, Ser356, Ser396 and Ser422). In addition, AMPK, but not MARK4, was capable of phosphorylating Ser214 (Figure 2A).
SIGNOR-273932
P46934
Q96NT3
1
polyubiquitination
down-regulates quantity by destabilization
0.419
The E3 ligase NEDD4 regulates GUCD1 degradation. many polyubiquitinylated species of GUCD1 appeared as high molecular weight forms, suggesting that GUCD1 is degraded by the proteasome, after polyubiquitin chain formation, in the presence of NEDD4-1.
SIGNOR-272846
P13631
P10827
2
binding
up-regulates
0.419
We report that the retinoic acid receptors (rars), a distinct class of nuclear receptors, are also efficient heterodimer partners for trs
SIGNOR-133237
O15264
Q6JBY9
1
phosphorylation
down-regulates activity
0.419
CapZIP was also phosphorylated rapidly by SAPK3/p38γ and SAPK4/p38δ, and even faster and more extensively by JNK1α1, these protein kinases phosphorylating CapZIP in vitro to >3, approx. 2 and >5 mol of phosphate/mol of protein respectively within a few minutes. Following tryptic digestion and C18 chromatography, further sites phosphorylated by JNK1α1 were identified as Ser-68, Ser-83 and Ser-216 (results not shown), and are highlighted in Figure 3.Using this antibody, we showed by immunoblotting that bacterially expressed CapZIP was phosphorylated at Ser-108 by SAPK4/p38δ, JNK1α1 and ERK2 in vitro, as well as by SAPK3/p38γ (results not shown).An important clue to the function of CapZIP and its phosphorylation came from the finding that it binds to the actin-capping protein CapZ (Figure 7A), and that cellular stresses trigger the dissociation of these two proteins (Figure 7B).Such an effect is presumably lost when CapZIP is phosphorylated and dissociates from CapZ.
SIGNOR-263084
Q9UF56
Q9UMX1
1
ubiquitination
down-regulates quantity by destabilization
0.419
Here, we show that Fbxl17 (F-box and leucine-rich repeat protein 17) targets Sufu for proteolysis in the nucleus. The ubiquitylation of Sufu, mediated by Fbxl17, allows the release of Gli1 from Sufu for proper Hh signal transduction
SIGNOR-253545
P22392
O15554
1
phosphorylation
up-regulates
0.419
We previously showed that nucleoside diphosphate kinase beta (ndpk-b), a mammalian histidine kinase, is required for kca3.1 channel activation in human cd4 t lymphocytes.
SIGNOR-181083
Q13315
P46527
1
phosphorylation
up-regulates quantity by stabilization
0.419
We also uncovered that ATM phosphorylates p27Kip1 on a previously uncharacterized residue (Ser-140), which leads to its stabilization after induction of DNA double-strand breaks.
SIGNOR-279392
P49356
P01116
1
null
up-regulates activity
0.419
Major investments have been made to target Ras through indirect routes. Inhibition of farnesyl transferase to block Ras maturation has failed in large clinical trials.
SIGNOR-242556
P19793
P35222
1
binding
down-regulates
0.419
Rxr agonists still inactivated endogenous beta-catenin via rxr alpha.
SIGNOR-101293
P06493
Q14493
1
phosphorylation
down-regulates quantity by destabilization
0.419
Phosphorylation of threonine 61 by cyclin a/Cdk1 triggers degradation of stem-loop binding protein at the end of S phase
SIGNOR-265258
O14965
O95239
1
phosphorylation
up-regulates activity
0.419
We show that Aurora A phosphorylates the condensin I-dependent pool of KIF4A and thus actively promotes chromosome congression from the spindle poles to the metaphase plate. In vitro kinase assays showed that recombinant KIF4A can be phosphorylated by Aurora A and that this activity is inhibited by the specific Aurora A inhibitor MLN8537 (Fig. 7 C).
SIGNOR-265993
P50148
Q9NZN5
1
binding
up-regulates activity
0.419
Leukemia-associated Rho guanine nucleotide exchange factor promotes G alpha q-coupled activation of RhoA.
SIGNOR-256520
Q9H1C0
P08754
1
binding
up-regulates activity
0.419
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-256861
Q5JTC6
P49841
1
relocalization
up-regulates activity
0.419
Amer1 binds ck1gamma, recruits axin and gsk3beta to the plasma membrane and promotes complex formation between axin and lrp6.
SIGNOR-171892
Q9P2P5
Q8IY63
1
ubiquitination
up-regulates activity
0.419
These results clearly indicate that HECW2 ubiquitinates AMOTL1 with K63-linked polyubiquitin chains.|Unlike NEDD4.2, HECW2 targeted AMOTL1 and promoted its stability.
SIGNOR-278811
Q14012
Q9UQL6
1
phosphorylation
down-regulates
0.419
Camk phosphorylates serines -259 and -498 in hdac5, which subsequently serve as docking sites for 14-3-3. Our studies suggest that 14-3-3 binding to hdac5 is required for camk-dependent disruption of mef2hdac complexes and nuclear export of hdac5, and implicate 14-3-3 as a signal-dependent regulator of muscle cell differentiation.
SIGNOR-85022
P45984
Q14934
1
phosphorylation
up-regulates activity
0.419
Here, we showed that the nuclear factor of activated T3 (NFAT3) is phosphorylated by JNK1 or JNK2 at Ser(213) and Ser(217), which are located in the conserved SP motif.|Moreover, a 3xNFAT-luc reporter gene assay indicated that NFAT3 transcriptional activity was increased in a dose-dependent manner by JNK1 or JNK2.
SIGNOR-280036
P27361
Q13485
1
phosphorylation
up-regulates
0.419
Our results suggest that map kinase can phosphorylate thr276 of smad4 and that phosphorylation can lead to enhanced tgf-beta-induced nuclear accumulation and, as a consequence, enhanced transcriptional activity of smad4.
SIGNOR-101664
P06493
Q8IZP0
1
phosphorylation
down-regulates activity
0.419
We identified serine 216 of Abi1 as a target of CDK1/cyclin B kinase that is phosphorylated in cells at the onset of mitosis.|Bcr-Abl-induced actin polymerization requires the Abi1 pathway, as the blockade of the signal transduction from Bcr-Abl to Abi1 abolishes the F-actin assembly|serine phosphorylation of Abi1 by CDK1/cyclin B serves as a cell cycle-dependent regulatory mechanism that inhibits actin assembly
SIGNOR-264421
Q96L34
P10636-4
1
phosphorylation
down-regulates activity
0.419
AMPK phosphorylation inhibits tau binding of microtubules. In order to study further the phosphorylation of tau by AMPK, we compared phosphorylation of tau by MARK4 or AMPK using a panel of phospho-tau antibodies (Figure 2A). Five phosphorylation sites common to both kinases were identified (Thr231, Ser262, Ser356, Ser396 and Ser422). In addition, AMPK, but not MARK4, was capable of phosphorylating Ser214 (Figure 2A).
SIGNOR-273934
P01137
P62736
1
transcriptional regulation
up-regulates quantity by expression
0.419
A TGF-β1 response element that has a sequence different to that known for Smad binding has been identified in the α- SM actin promoter and seems to be essential for expression of α-SM actin in both SM cells 72 and myofibroblasts73 . How TGF-β1 activates expression of α-SM actin through this TGF-β1 control element is, as yet, unknown
SIGNOR-277681
P48729
Q12778
1
phosphorylation
down-regulates
0.418
Additionally, ck1, dyrk1a, and cdk2 also phosphorylate foxos at various sites to inhibit foxos activity
SIGNOR-183658
P50613
P13631
1
phosphorylation
up-regulates activity
0.418
RARg Is Phosphorylated by cdk7 in Its B and F Regions | Mutation into alanine of Ser-77 and Ser-79 located in the A/B region reduced the transcriptional activity of hRARg1 (Fig. 9A), confirming that these phosphorylation sites are required for optimal transcription.
SIGNOR-259853
P11309
P27448
1
phosphorylation
down-regulates
0.418
Here we show that the protein kinase cdc25 c-associated kinase 1 (c-tak1) is a binding partner and a substrate of pim-1.
SIGNOR-128264
Q9P0L2
P11137
1
phosphorylation
down-regulates activity
0.418
Here we show that p110mark phosphorylates analogous KXGS sites in the microtubule binding domains of the neuronal MAP2 and the ubiquitous MAP4. Phosphorylation in vitro leads to the dissociation of MAP2 and MAP4 from microtubules and to a pronounced increase in dynamic instability.
SIGNOR-250166
P05771
Q16236
1
phosphorylation
up-regulates
0.418
Phosphorylation of nrf2 at ser-40 by protein kinase c regulates antioxidant response element-mediated transcription / recently we reported evidence for the involvement of protein kinase c (pkc) in phosphorylating nrf2 and triggering its nuclear translocation in response to oxidative stress
SIGNOR-91830
Q6ZUJ8
P42338
1
binding
up-regulates
0.418
This accumulation of tyrosine-phosphorylated bcap at the membrane with its associated pi3k would then allow for the catalysis of ptd ins p2 to ptd ins p3 and downstream pi3k-dependent signals. Therefore, bcap is an essential activator of the pi3k pathway downstream of tlr signaling, providing a brake to limit potentially pathogenic excessive tlr responses.
SIGNOR-191667
Q96KB5
Q96S44
1
phosphorylation
up-regulates activity
0.418
In this study, we provide evidence showing that TOPK promotes metastasis of colorectal carcinoma, which is mediated through its phosphorylation of PRPK at Ser250.|Therefore, we conclude that TOPK directly promotes metastasis of colorectal cancer by modulating PRPK.
SIGNOR-278236
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
Q96S59
Q9Y463
1
binding
down-regulates activity
0.418
Serine/threonine kinase Mirk/Dyrk1B is an inhibitor of epithelial cell migration and is negatively regulated by the Met adaptor Ran-binding protein M.
SIGNOR-238008
Q8IYD8
Q92547
1
relocalization
up-regulates
0.418
The enzymatic activity of fan cm is then required to remodel and stabilize the fork to allow topbp1 access to activate atr , in a 9-1-1-independent manner.
SIGNOR-164765
O60674
Q6N021
1
phosphorylation
up-regulates activity
0.418
Specifically, cytokine receptor-associated JAK2 phosphorylates TET2 at tyrosines 1939 and 1964. Phosphorylated TET2 interacts with the erythroid transcription factor KLF1, and this interaction with TET2 is increased upon exposure to erythropoietin. 
SIGNOR-277289
O43303
O15182
1
binding
up-regulates activity
0.418
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-265968
Q03468
P27695
1
binding
down-regulates activity
0.418
CSB stimulates the AP site incision activity of APE1 on normal (i.e. fully paired) and bubble AP-DNA substrates, with the latter being more pronounced (up to 6-fold). This activation is ATP-independent, and specific for the human CSB and full-length APE1 protein. CSB and APE1 were also found in a common protein complex in human cell extracts, and recombinant CSB, when added back to CSB-deficient whole cell extracts, resulted in increased total AP site incision capacity.
SIGNOR-251932
P26447
P35579
1
binding
down-regulates activity
0.418
Our results show that S100A4 regulates cell polarization during directed motility by affecting the localization of protrusions through interactions with myosin-IIA, with S100A4 expressing cells displaying few side protrusions and extensive forward protrusions during chemotaxis compared with control cells. The mechanisms by which these antibodies and S100A4 increase protrusive activity and promote cellular motility are not well understood, but the observation that S100A4 can inhibit the actin-activated ATPase of myosin-IIA (34) suggests that S100A4 could function as a myosin-IIA inhibitor in vivo.
SIGNOR-269282
P24941
P49916
1
phosphorylation
down-regulates
0.418
Dna ligase iii_ is specifically phosphorylated in replicating cells by the cell cycle kinase cdk2. However, in response to oxidative dna damage, dna ligase iii_ is dephosphorylated in a pathway that is dependent upon the dna damage-activated, phosphatidylinositol 3-phosphate (pi3)1-related kinase atm.
SIGNOR-150121
P32249
P63096
1
binding
up-regulates activity
0.418
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-256715
P18031
P35968
1
dephosphorylation
down-regulates activity
0.418
This led to increased PTPN1 (PTP1b)-mediated dephosphorylation of VEGFR2 at Y 1175 , the site involved in activating ERK signaling.
SIGNOR-277011
Q92835
P43405
1
dephosphorylation
down-regulates activity
0.418
An adaptor protein Dok-3 mediates the suppressive function of LYN. The Dok-3 phosphorylated by LYN upon BCR stimulation forms a complex with GRB2, which allows it to enter into the signalosome and associate with activation of SHIP protein. This translocation facilitates the efficient inhibition of PLCc2 and SYK from activation, subsequently resulting in the suppression of downstream Ca2+ signaling.
SIGNOR-268456
P06213
Q14451
1
binding
up-regulates
0.418
Insulin induces the ir-grb7 interaction in cells expressing physiological levels of the proteins, suggesting that grb7 is implicated in insulin signaling.
SIGNOR-77153
P57059
Q6UUV7
1
phosphorylation
down-regulates
0.418
These results suggested that sik1 could phosphorylate all torcs and thereby repress their transactivation activities.
SIGNOR-147703
Q15637
Q01844
1
binding
down-regulates
0.418
Here we report that zfm1 also interacts withews / overexpression of zfm1 in hepg2 cells represses the transactivation of reporter gene expression driven by gal4-ews-ntd fusion protein and this repression correlates with zfm1 binding to ews.
SIGNOR-58928
Q9NRM7
P38936
1
phosphorylation
down-regulates quantity
0.417
Phosphorylation by Lats2 induces degradation of p21 and promotes apoptosis.|Subsequently, Lats2 phosphorylates p21 at S146.
SIGNOR-279530
Q8NG66
P30304
1
phosphorylation
down-regulates
0.417
Nek11 regulates cdc25a degradation and the ir-induced g2/m checkpointincubation of wild-type cdc25a with nek11 led to a marked increase in phosphorylation of ser 82 and 88 as detected with the phosphospecific antibody recognizing these sites
SIGNOR-187867
Q9HCK8
O96020
1
transcriptional regulation
up-regulates quantity by expression
0.417
In order to identify CHD8 target genes, we performed a transcriptomic analysis of CHD8-depleted cells, finding out that CHD8 controls the expression of cyclin E2 (CCNE2) and thymidylate synthetase (TYMS), two genes expressed in the G1/S transition of the cell cycle. CHD8 was also able to co-activate the CCNE2 promoter in transient transfection experiments. Chromatin immunoprecipitation experiments demonstrated that CHD8 binds directly to the 5' region of both CCNE2 and TYMS genes.
SIGNOR-268804
O15530
P17252
1
phosphorylation
up-regulates
0.417
One of the most studied events controlled by ptdins(3,4,5)p3, comprises the activation of a of agc family protein kinases, including isoforms of protein kinase b (pkb)/akt, p70 ribosomal s6 kinase (s6k), serum and glucocorticoid-induced protein kinase (sgk) and protein kinase c (pkc), which play crucial roles in regulating physiological processes relevant to metabolism, growth, proliferation and survival. Here, we review recent biochemical, genetic and structural studies on the 3-phosphoinositide-dependent protein kinase-1 (pdk1), which phosphorylates and activates the agc kinase members regulated by pi 3-kinase. We also discuss whether inhibitors of pdk1 might have chemotherapeutic potential in the treatment of cancers in which the pdk1-regulated agc kinases are constitutively activated.
SIGNOR-126066
P17252
Q05586
1
phosphorylation
up-regulates activity
0.417
Serines 890 and 896 of the NMDA receptor subunit NR1 are differentially phosphorylated by protein kinase C isoforms. The results show that PKC alpha phosphorylates preferentially S896 and PKC gamma preferentially S890.
SIGNOR-263177
O75116
Q15306
1
phosphorylation
up-regulates
0.417
Carock2 phosphorylated irf4 at either of 2 distinct phosphorylation sites, s446 and s447 / rock2-mediated phosphorylation of irf4 regulated the synthesis of il-17 and il-21 and the differentiation of th17 cells.
SIGNOR-167471
P28702
P43354
1
binding
up-regulates
0.417
The recent discovery that the nuclear transcription factor, nurr1, in heterodimeric tandem with rxr, is unequivocally necessary for the expression of dopaminergic neurons
SIGNOR-58309
Q13153
O14965
1
phosphorylation
up-regulates
0.417
The upstream pak1 kinase can phosphorylate aurora a at t288, autophosphorylation appears to be the essential mode of activation. Our experiments suggest that phosphorylation of t288 is important for regulation of the aurora2 kinase both for its activity and its stability
SIGNOR-205110
P12931
P46934-4
1
phosphorylation
up-regulates activity
0.417
Activation of c-Src by epidermal growth factor (EGF) also promoted tyrosine phosphorylation and enhanced the activity of NEDD4. 
SIGNOR-276860
P23471
Q9NRY4
1
dephosphorylation
down-regulates activity
0.417
Protein tyrosine phosphatase receptor type Z is involved in hippocampus-dependent memory formation through dephosphorylation at Y1105 on p190 RhoGAP| Furthermore, Ptprz selectively dephosphorylated pY1105 of p190 RhoGAP in vitro, and the tyrosine phosphorylation at Y1105 controls p190 RhoGAP activity in vivo.
SIGNOR-248451
P12931
Q15746
1
phosphorylation
up-regulates
0.417
Ec mlck-1 is phosphorylated by p60(src) on tyr(464) and tyr(471), resulting in a 2- to 3-fold increase in ec mlck-1 enzymatic activity.
SIGNOR-85009
Q96K30
Q06330
1
binding
down-regulates
0.417
Thus, we propose that rita acts as a negative modulator of the notch signalling pathway, controlling the level of nuclear rbp-j/cbf-1, where its amounts are limiting.
SIGNOR-170089
P18031
P29320
1
dephosphorylation
down-regulates activity
0.417
Nevertheless, the finding that phosphorylation of the activation loop tyrosine (EphA3-Y779), a recently identified PTP1B substrate (Mertins et al., 2008), is essential for ligand-induced endocytosis (Janes et al., 2009)
SIGNOR-248426
P16144
P42336
1
binding
up-regulates
0.417
Stable expression of alpha6beta4 increased carcinoma invasion in a pi3k-dependent manner, and transient expression of a constitutively active pi3k increased invasion in the absence of alpha6beta4. Ligation of alpha6beta4 stimulated significantly more pi3k activity than ligation of beta1 integrins, establishing specificity among integrins for pi3k activation.
SIGNOR-54530
P78527
Q92831
1
phosphorylation
up-regulates activity
0.417
In response to UV-induced DNA damage, DNA-PK phosphorylates and activates PCAF, and activated PCAF is transferred to photo lesion sites and further acetylates RPA1 at K163.
SIGNOR-280092
Q13627
P04637
1
phosphorylation
up-regulates
0.417
Dyrk1a phosphorylates p53 and inhibits proliferation of embryonic neuronal cells. we found that dyrk1a phosphorylates p53 at ser-15 in vitro and in immortalized rat embryonic hippocampal progenitor h19-7 cells. In addition, dyrk1a-induced p53 phosphorylation at ser-15 led to a robust induction of p53 target genes
SIGNOR-167407
Q01344
Q06945
1
binding
up-regulates activity
0.417
Sox4 activation by IL-5R_ appears to be direct, with syntenin functioning as an adaptor molecule. Syntenin mediates IL-5–induced Sox4 activation.
SIGNOR-223010
P19338
P10243
1
binding
down-regulates activity
0.417
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-221233
Q6DKK2
Q9H444
1
binding
up-regulates activity
0.417
We show that PtdIns(3)P localizes to the midbody during cytokinesis and recruits a centrosomal protein, FYVE-CENT (ZFYVE26), and its binding partner TTC19, which in turn interacts with CHMP4B, an endosomal sorting complex required for transport (ESCRT)-III subunit implicated in the abscission step of cytokinesis. On the basis of these data and the high-content microscopy described above, we propose that PtdIns(3)P controls the KIF13A-dependent recruitment of FYVE-CENT and TTC19 to the midbody, and that TTC19 is the most downstream effector of the three, possibly controlling the function of CHMP4B.
SIGNOR-265541
O75122
P46940
1
binding
up-regulates activity
0.416
IQGAP1 is a novel CLASP2-interacting protein| nonphosphorylated CLASP2 on microtubules is allowed to associate with IQGAP1 for the coupling of microtubules to actin filaments at the front of migrating cells.
SIGNOR-264828
Q96Q27
O75369
1
binding
down-regulates quantity by destabilization
0.416
Here, we provide the first evidence that a novel ASB2 isoform, ASB2beta, is important for muscle differentiation. ASB2beta is expressed in muscle cells during embryogenesis and in adult tissues. ASB2beta is part of an active E3 ubiquitin ligase complex and targets the actin-binding protein filamin B (FLNb) for proteasomal degradation.  Altogether, our results indicated that ASB2β can assemble with elongin B, elongin C, Cullin 5 and Rbx2 to reconstitute an active E3 ubiquitin ligase complex.ASB2β induces polyubiquitylation of FLNb.
SIGNOR-271795
Q86UR5
Q96E17
1
relocalization
up-regulates activity
0.416
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-264382
Q8N5S9
Q8IU85
1
phosphorylation
up-regulates activity
0.416
CaM-KIdelta exhibits Ca(2+)/CaM-dependent activity that is enhanced (approximately 30-fold) in vitro by phosphorylation of its Thr180 by CaM-K kinase (CaM-KK)alpha, consistent with detection of CaM-KIdelta-activating activity in HeLa cells. | This sustained activation of CaM-KIdelta was completely abolished by Thr180Ala mutation and inhibited by CaM-KK inhibitor, STO-609, indicating a functional CaM-KK/CaM-KIdelta cascade in HeLa cells.
SIGNOR-250715
P12931
Q9Y6K9
1
phosphorylation
down-regulates activity
0.416
Either IKKγ/NEMO WT or the Y374F mutant was coexpressed with each member of the Src family protein tyrosine kinases (SF-PTKs) in HEK 293T cells. Our study thus demonstrates that the Y374 or S377 residue located at the C-terminal proline-rich domain of human IKKγ/NEMO undergoes phosphorylation upon TNF-α treatment or KvFLIP expression, respectively, resulting in the suppression of IKKγ/NEMO activity to induce NF-κB activation. 
SIGNOR-276370
P60510
P53350
1
dephosphorylation
down-regulates activity
0.416
PPP4C dephosphorylated PLK1 at the S137 site, negatively regulating its activity in the DSB response in early embryonic cells.
SIGNOR-277076
O15111
Q9Y618
1
phosphorylation
down-regulates
0.416
Nf-kappab transcription requires ikkalpha to phosphorylate smrt on chromatin, stimulating the exchange of corepressor for coactivator complexes. Ikk directly phosphorylates smrt to stimulate nuclear export. Ikkalpha orchestrates smrt derepression, a prerequisite for nf-kappab transcription and survival.
SIGNOR-129956
P21860
O00329
1
binding
up-regulates
0.416
Pi3k is the sole binding partner to six tyrosines of erbb3 and one in erbb4.
SIGNOR-146867