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14
P25445
Q13158
2
binding
up-regulates activity
0.91
Aggregation-induced conformational changes in fas lead to the formation of the death-inducing signalling complex (disc) which involves recruitment of the adaptor protein fadd/mort1 through a homotypic interaction of death domains, present in both the intracellular region of fas and the c-terminus of fadd.
SIGNOR-176651
P05198
Q9P2K8
0
phosphorylation
down-regulates activity
0.914
Translation initiation factor 2α [eukaryotic translation initiation factor 2α (eIF2α)] kinase phosphorylates serine51 (Ser51) of eIF2α and downregulates cellular protein synthesis.
SIGNOR-246157
Q9NX09
P49841
0
phosphorylation
down-regulates quantity by destabilization
0.339
It has been reported that GSK3beta phosphorylates REDD1 at residues Thr23 and Thr25, resulting in REDD1 recruitment to the Cullin 4a-beta-Trcp E3 ligase complex.
SIGNOR-279526
Q15831
Q15418
0
phosphorylation
down-regulates activity
0.288
Negative regulation of the LKB1/AMPK pathway by ERK in human acute myeloid leukemia cellsBRAFV600E activates downstream molecules, including ERK and p90 ribosomal S6 kinase (RSK), and leads to the phosphorylation of LKB-1 at Ser428 by these kinases. This cascade results in the dissociation of LKB1 from AMPK.
SIGNOR-209871
Q9BZY9
O75037
2
binding
up-regulates activity
0.2
Here we show that the ubiquitin E3 ligase TRIM3, also known as BERP, interacts with KIF21B via its RBCC domain ||he E3-ligase function of TRIM3 is not involved in KIF21B degradation, however TRIM3 depletion reduces the motility of the motor. Together, our data suggest that TRIM3 is a regulator in the modulation of KIF21B motor function
SIGNOR-272479
Q6STE5
Q16539
0
phosphorylation
up-regulates activity
0.368
P38 phosphorylates the baf60 subunit of the swi-snf chromatin remodelling complex, and p38 recruits this complex to differentiation-specific loci.
SIGNOR-176557
Q9UJZ1
P06239
2
binding
up-regulates activity
0.2
In these studies, we also found that SLP-2 interacted with Lck, ZAP70, LAT, and PLC-gamma1 during the 30-min period following stimulation in vitro|The SLP-2-associated pool of these molecules became phosphorylated/activated in a sequential manner, a profile compatible with their temporal involvement in early TCR signalling.
SIGNOR-260376
Q9ULH1
Q14289
0
phosphorylation
down-regulates activity
0.458
The tyrosine kinase Pyk2 regulates Arf1 activity by phosphorylation and inhibition of the Arf-GTPase-activating protein ASAP1. Pyk2 directly phosphorylates ASAP1 on tyrosine residues in vitro and increases ASAP1 tyrosine phosphorylation when co-expressed in HEK293T cells.Phosphorylation of tyrosine 308 and 782 affects the phosphoinositide binding profile of ASAP1, and fluorimetric Arf-GTPase assays with purified proteins revealed an inhibition of ASAP1 GTPase-activating protein activity by Pyk2-mediated tyrosine phosphorylation.
SIGNOR-263186
Q16539
P38936
1
phosphorylation
up-regulates quantity by stabilization
0.445
The stress-activated protein kinases p38 alpha and jnk1 stabilize p21(cip1) by phosphorylation.|p38 alpha and JNK1 phosphorylated p21 in vivo, and both p38 alpha and JNK1 phosphorylated p21 at Ser(130) in vitro.
SIGNOR-89436
Q6VVB1
Q9UQK1
1
ubiquitination
down-regulates quantity by destabilization
0.741
We have recently described that the activity of R5/PTG is down-regulated by the laforin-malin complex, composed of a dual specificity phosphatase (laforin) and an E3-ubiquitin ligase (malin). We now demonstrate that phosphorylation of R5/PTG at Ser-8 by AMPK accelerates its laforin/malin-dependent ubiquitination and subsequent proteasomal degradation, which results in a decrease of its glycogenic activity. 
SIGNOR-276238
Q04206
P01584
1
transcriptional regulation
down-regulates activity
0.555
Early Inhibition of IL-1 beta Expression by IFN-gamma Is Mediated by Impaired Binding of NF-kappa B to the IL-1 beta Promoter but Is Independent of Nitric Oxide|We report that IFN-γ suppressed bacterial RNA and LPS induced IL-1β transcription in primary murine macrophages
SIGNOR-251736
Q92905
O14920
0
phosphorylation
down-regulates activity
0.33
Overexpression of IKKalpha or IKKbeta leads to enhanced phosphorylation of CSN5, the catalytic subunit for CSN deneddylase activity. Mutational analyses have revealed that phosphorylation at serine 201 and threonine 205 of CSN5 impairs CSN-mediated deneddylation activity in vitro.
SIGNOR-275519
P21917
P19086
2
binding
up-regulates activity
0.278
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-257098
P41279
P31749
0
phosphorylation
up-regulates activity
0.558
Akt-dependent phosphorylation of Cot occurs exclusively on serines 400 and 413. Akt to phosphorylate Cot at two sites in the carboxy-terminal domain, at least one of which may promote binding of substrates or coactivators to Cot, or alternatively may relieve binding of a negative regulator.
SIGNOR-252572
P04629
P51149
2
binding
down-regulates activity
0.471
Endogenous TrkA and Rab7 form a complex. Inhibition of Rab7 potentiates the signaling of TrkA in response to brief stimulations with NGF
SIGNOR-261305
O43318
P45985
1
phosphorylation
up-regulates activity
0.711
Mitogen-activated protein kinase kinase 4 (mkk4)/stress-activated protein kinase/extracellular signal-regulated kinase (sek1), a dual-specificity kinase that phosphorylates and activates jnk, synergized with tak1 in activating jnk.Taken together, these results identify TAK1 as a regulator in the HPK1 --> TAK1 --> MKK4/SEK1 --> JNK kinase cascade and indicate the involvement of JNK in the TGF-beta signaling pathway.
SIGNOR-50618
Q9UNE7
P13569
1
polyubiquitination
down-regulates quantity by destabilization
0.471
Here we show that CHIP functions with Hsc70 to sense the folded state of CFTR and targets aberrant forms for proteasomal degradation by promoting their ubiquitination. 
SIGNOR-272584
Q13794
Q9NX47
0
ubiquitination
down-regulates quantity
0.2
MARCH5 promotes ubiquitination of MCL1 and NOXA.|Of note, MARCH5 depletion led to the accumulation of MCL1 and NOXA in asynchronous as well as G2 cells, suggesting that MARCH5 controls NOXA/MCL1 levels throughout the cell cycle.
SIGNOR-278758
P33991
P06493
0
phosphorylation
down-regulates activity
0.592
We report here that human mcm4, a subunit of the putative dna replicative helicase, is extensively phosphorylated in hela cells when they are incubated in the presence of inhibitors of dna synthesis or are exposed to uv irradiation. The data presented here indicate that the consecutive actions of atr-chk1 and cdk2 kinases are involved in this phosphorylation in the presence of hydroxyurea. Phosphorylation of t19 correlates with lowered level of dna helicase activity of the purified mcm4,6,7 complex.
SIGNOR-100877
Q8IXJ6
P12931
0
phosphorylation
down-regulates quantity by destabilization
0.291
In this study, we investigated the potential regulation of SIRT2 function by c-Src. We found that the protein levels of SIRT2 were decreased by c-Src, and subsequently rescued by the addition of a Src specific inhibitor, SU6656, or by siRNA-mediated knockdown of c-Src. The c-Src interacts with and phosphorylates SIRT2 at Tyr104.
SIGNOR-263104
Q12933
Q13490
2
binding
up-regulates activity
0.873
The c-iaps associate with traf1 and traf3
SIGNOR-39527
O60315
Q13363
2
binding
up-regulates activity
0.474
The two members of the ZEB family of zinc finger factors (ZEB-1/deltaEF1 and ZEB-2/SIP1) regulate TGFbeta/BMP signaling in opposite ways: ZEB-1/deltaEF1 synergizes with Smad-mediated transcriptional activation, while ZEB-2/SIP1 represses it. Here we report that these antagonistic effects by the ZEB proteins arise from the differential recruitment of transcriptional coactivators (p300 and P/CAF) and corepressors (CtBP) to the Smads. Thus, while ZEB-1/deltaEF1 binds to p300 and promotes the formation of a p300-Smad transcriptional complex, ZEB-2/SIP1 acts as a repressor by recruiting CtBP.
SIGNOR-268953
Q9HBY8
O43524
1
phosphorylation
down-regulates activity
0.521
Protein kinase SGK mediates survival signals by phosphorylating the forkhead transcription factor FKHRL1 (FOXO3a)|However, SGK and Akt display differences with respect to the efficacy with which they phosphorylate the three regulatory sites on FKHRL1. While both kinases can phosphorylate Thr-32, SGK displays a marked preference for Ser-315 whereas Akt favors Ser-253. These findings suggest that SGK and Akt may coordinately regulate the function of FKHRL1 by phosphorylating this transcription factor at distinct sites. The efficient phosphorylation of these three sites on FKHRL1 by SGK and Akt appears to be critical to the ability of growth factors to suppress FKHRL1-dependent transcription, thereby preventing FKHRL1 from inducing cell cycle arrest and apoptosis.
SIGNOR-249130
Q9UNS1
P04150
0
transcriptional regulation
up-regulates quantity by expression
0.252
GR directly regulates transcription of circadian clock components in mouse and human primary MSCs. Per2, E4bp4, Per1, and Timeless rapidly respond to glucocorticoid stimulation. Primary glucocorticoid receptor (GR) target genes are those at which GR occupies a nearby genomic glucocorticoid response element (GRE) and regulates target gene transcription
SIGNOR-268052
Q9UHF4
Q9UHD0
2
binding
up-regulates
0.745
Il-19 signals only through the type i il-20r complex.
SIGNOR-110671
Q96RT1
Q9UQB3
2
binding
up-regulates activity
0.2
We characterized the interactions between the Erbin PDZ domain and both ARVCF and δ-catenin in vitro and in vivo. endogenous δ-catenin and Erbin co-localized in and co-immunoprecipitated from neurons. These results suggest that δ-catenin and ARVCF may function to mediate the association of Erbin with the junctional cadherin-catenin complex.
SIGNOR-252120
Q8N4C8
Q96MT3
1
phosphorylation
up-regulates activity
0.293
We show that Mink1 phosphorylates Prickle on a conserved threonine residue and regulates its Rab5-dependent endosomal trafficking, a process required for the localized plasma membrane accumulation and function of Prickle.
SIGNOR-263095
P23769
P15976
0
transcriptional regulation
down-regulates quantity by repression
0.443
GATA-2 induces the expression of GATA-1, which first activates its cofactor FOG-1, and then downregulates GATA-2 cooperatively with FOG-1.
SIGNOR-256060
Q12824
P51531
2
binding
up-regulates activity
0.924
The remodeling activity of brg1 and hbrm is stimulated by baf170/baf155 and is further stimulated when ini1 is added.
SIGNOR-65181
P60484
Q9UHC7
0
ubiquitination
down-regulates quantity by destabilization
0.43
EGFR/PI3K/AKT-mediated ubiquitination and degradation of PTEN are dependent on the MKRN1 E3 ligase.|In fact, epidermal growth factor-stimulated pAKT phosphorylates and subsequently stabilizes MKRN1, which then ubiquitinates and induces the degradation of PTEN.
SIGNOR-278830
Q8IYW5
O95071
0
ubiquitination
down-regulates quantity
0.442
Here, we show that TRIP12 and UBR5, two HECT domain ubiquitin E3 ligases, control accumulation of RNF168, a rate-limiting component of a pathway that ubiquitylates histones after DNA breakage. We find that RNF168 can be saturated by increasing amounts of DSBs. Depletion of TRIP12 and UBR5 allows accumulation of RNF168 to supraphysiological levels, followed by massive spreading of ubiquitin conjugates and hyperaccumulation of ubiquitin-regulated genome caretakers such as 53BP1 and BRCA1.
SIGNOR-266782
Q14596
O95166
2
binding
up-regulates
0.757
We performed glutathione s-transferase (gst) pull-down assays using extracts from hek293 cells overexpressing an ha-tagged nbr1(d50r) mutant, which lacks the ability to bind p62 (lamark et al., 2003) (figures s1a and s1b, available online), and gst fusions of six human atg8 homologs: gabarap, gabarapl1, gabarapl2, lc3a, lc3b, and lc3c. Indeed, nbr1 interacted with all these members of the mammalian atg8 protein family
SIGNOR-184261
Q9NZJ5
P23458
0
phosphorylation
up-regulates activity
0.2
JAK1 interacts with and phosphorylates PERK. PERK-dependent activation of JAK1 and STAT3 contributes to endoplasmic reticulum stress-induced inflammation. Similarly, PERK is associated with and phosphorylated by JAK1 at Y585 and Y619 (and possibly other JAKs) during ER stress, resulting in PERK- and JAK1-dependent activation of STAT3.
SIGNOR-276677
Q14674
O95997
2
binding
down-regulates activity
0.945
Prior to anaphase, separase is kept inactive by its inhibitor securin
SIGNOR-275538
P34981
P50148
2
binding
up-regulates activity
0.491
TRH receptors are textbook calcium-mobilizing receptors: they are coupled to Gq and G11, which activate phospholipase Cβ (PLCβ).
SIGNOR-267202
P17252
P00533
1
phosphorylation
down-regulates activity
0.609
Biochemical and morphological analyses indicate that threonine-phosphorylated EGFR molecules undergo normal internalization, but instead of sorting to lysosomal degradation, they recycle back to the cell surfaceThe inhibitory effects of pkc are mediated by a single threonine residue (threonine 654) of egfr
SIGNOR-77421
Q9Y5X5
O15130
2
binding
up-regulates
0.772
Npff specifically bound to npff1 (k(d) = 1.13 nm) and npff2 (k(d) = 0.37 nm), and both receptors were activated by npff in a variety of heterologous expression systems
SIGNOR-82961
O15078
P61006
2
binding
up-regulates activity
0.742
CEP290 cooperates with Rab8a to promote ciliogenesis and this function is antagonized by CP110. CEP290 recruits Rab8a to centrosomes. Depletion of CEP290 results in a significant decrease of Rab8a at the centrosome and at the cilium, raising the possibility that CEP290 first recruits Rab8a through direct protein-protein interactions to the centrosome in cycling cells and later promotes ciliogenesis by allowing the entry of Rab8a into the cilium
SIGNOR-252146
Q06710
P01137
2
binding
down-regulates activity
0.2
DNA Binding Activity of Pax8 to the NIS Promoter Is Reduced by Smad3. TGF-β decreases Pax8 DNA binding to the NIS promoter and also found a physical interaction between Pax8 and Smad3.
SIGNOR-251993
Q92633
O95837
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-257200
Q8N752
Q86UY5
2
binding
up-regulates quantity
0.2
We identified members of the FAM83 family of proteins as partners of CK1 in cells. All eight members of the FAM83 family (FAM83A–H) interacted with the α and α-like isoforms of CK1; FAM83A, -B, -E, and -H also interacted with the δ and ε isoforms of CK1. The intrinsic catalytic activity of CK1 is not affected by or required for the association of CK1 with FAM83 proteins. Our findings imply that the DUF1669 domains of FAM83 proteins anchor CK1 α, α-like, δ, and ε isoforms in specific subcellular compartments and potentially mediate their association with substrates.
SIGNOR-273756
Q504Q3
Q99708
1
deubiquitination
up-regulates activity
0.2
Here, we identify that USP52 directly interacts with and deubiquitinates CtIP, thereby promoting DNA end resection and HR. Mechanistically, USP52 removes the ubiquitination of CtIP to facilitate the phosphorylation and activation of CtIP at Thr-847. In addition, USP52 is phosphorylated by ATM at Ser-1003 after DNA damage, which enhances the catalytic activity of USP52. 
SIGNOR-273509
O14757
O14974
1
phosphorylation
down-regulates quantity by destabilization
0.2
 MYPT1 is phosphorylated by CDK1, thus recruiting protein phosphatase 1β (PP1cβ) to dephosphorylate and inactivate Plk1. Here we identified that Chk1 directly interacts with MYPT1 and preferentially phosphorylates MYPT1 at Ser20, which is essential for MYPT1-PP1cβ interaction and subsequent Plk1 dephosphorylation.
SIGNOR-277870
P35613-2
P06241
0
phosphorylation
up-regulates activity
0.269
Our findings demonstrated that Fyn directly phosphorylates CD147 at Y140 and Y183. Moreover, the CD147-FF (Y140F/Y183F) mutation impaired the interaction between CD147 and GnT-V, leading to decreased CD147 glycosylation and membrane recruitment.
SIGNOR-273999
P16144
P42336
2
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
O60260
Q8IWA4
1
ubiquitination
down-regulates quantity
0.2
Parkin and PINK1 are required for ubiquitination of MFN-1 and MFN-2.  Decreases in MFN-1 and MFN-2 protein levels seen at later timepoints are difficult to interpret as it is unclear whether this is due to degradation by the proteasome and/or loss of whole mitochondria by mitophagy.
SIGNOR-272779
P16949
Q13153
0
phosphorylation
down-regulates
0.374
The hgf-induced wave2 transport, lamellipodia formation, stathmin/op18 phosphorylation at ser38 and binding to kinesin-wave2 complex, but not stathmin/op18 phosphorylation at ser25 and microtubule growth, were abrogated by pak1 inhibitor ipa-3
SIGNOR-183503
Q99717
P36894
0
phosphorylation
up-regulates activity
0.688
Two types of bmp-induced signaling pathways are known, the smad and p38 mapk pathways. In the former case, bmpr1 phosphorylates smad-1,-5,-8, which forms a complex with smad4 that translocates into the nucleus and regulates gene expression.
SIGNOR-255261
P19429
P05129
0
phosphorylation
down-regulates
0.2
Phosphorylation at ser 23/24 (e.g., by pka or pkg) results in reduction in myofilament ca2+ sensitivity and an increase in crossbridge cycling rate, leading to acceleration of relaxation and an increase in power output but a reduced economy of contraction. Conversely, phosphorylation at ser 43/45 (by pkc) is associated with reduced maximum ca2+-activated force and decreased crossbridge cycling rates, which are likely to reduce power output and delay relaxation, with an increased economy of contraction.
SIGNOR-134632
Q00535
Q9Y4G8
1
phosphorylation
up-regulates activity
0.39
Our results demonstrate that the Cdk5-dependent activation of RapGEF2, spatial activation of Rap1 signalling and Rap1-facilitated surface localization of N-cadherin in the upper intermediate zone control neuronal migration and ultimately the architecture of the mammalian cerebral cortex.|This demonstrates that Cdk5 phosphorylates RapGEF2 at Ser1124 in vitro .
SIGNOR-278258
O43791
P10071
1
ubiquitination
down-regulates quantity
0.704
RNAi knockdown of Spop (a substrate-binding adaptor for the cullin3-based ubiquitin E3 ligase) in Sufu mutant mouse embryonic fibroblasts (MEFs) can restore the levels of Gli2 and Gli3 full-length proteins
SIGNOR-268861
Q9Y5G4
Q9Y5I2
2
binding
up-regulates activity
0.2
The clustered protocadherins comprise the largest subfamily of the cadherin superfamily and are predominantly expressed in the nervous system. Pcdh-alpha proteins interact with beta1-integrin to promote cell adhesion. They also form oligomers with Pcdh-gamma proteins at the same membrane sites.
SIGNOR-265700
Q9NRY4
P23471
0
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
Q14469
P04150
1
transcriptional regulation
down-regulates quantity by repression
0.2
HES1 binding to the promoter of the NC3C1 gene inhibits its expression and results in insufficient production of the encoded glucocorticoid receptor- rendering these cells resistant to treatment with dexamethasone
SIGNOR-251674
P18206
P00519
0
phosphorylation
up-regulates activity
0.38
Abl is the tyrosine kinase that phosphorylates vinculin Y822.|Finally we show that Abl inhibition prevents vinculin actions in cadherin containing complexes, resulting in defects in cell stiffening.
SIGNOR-278464
Q9P275
Q15910
1
deubiquitination
up-regulates quantity by stabilization
0.2
We observed a MELK-mediated increase of EZH2 S220 phosphorylation along with a concomitant loss of EZH2 K222 ubiquitination, suggesting a phosphorylation-dependent regulation of EZH2 ubiquitination.  Furthermore, we identify USP36 as the deubiquitinating enzyme that deubiquitinates EZH2 at K222.
SIGNOR-277481
P08754
P32745
2
binding
up-regulates activity
0.452
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-256820
P01137
Q06710
2
binding
down-regulates activity
0.2
DNA Binding Activity of Pax8 to the NIS Promoter Is Reduced by Smad3. TGF-β decreases Pax8 DNA binding to the NIS promoter and also found a physical interaction between Pax8 and Smad3.
SIGNOR-251993
Q99250
Q96PU5
0
ubiquitination
down-regulates quantity by destabilization
0.317
The control of Nav density at the cell membrane is crucial to ensuring normal neuronal excitability. Navs are subject to posttranslational modifications that may influence their cell membrane availability. Ubiquitylation is a key process that orchestrates the internalization and subsequent degradation or recycling of Navs. This is accomplished by ubiquitin protein ligases, such as NEDD4-2 (neuronal precursor cell expressed developmentally downregulated-4 type 2).
SIGNOR-253459
Q99961
Q5S007
0
phosphorylation
down-regulates
0.467
We show that lrrk2 affects synaptic endocytosis by phosphorylating endoa at s75, a residue in the bar domain / our work uncovers a regulatory mechanism that indicates that reduced lrrk2 kinase activity facilitates endoa membrane association, while increased kinase activity inhibits membrane association.
SIGNOR-192068
Q13043
Q14457
1
phosphorylation
up-regulates activity
0.312
These results suggest that Mst1 directly stimulates interaction between Beclin1 and Bcl-2.|We here demonstrate that Mst1-induced phosphorylation of Beclin1 in its BH3 domain at Thr 108 promotes binding of Beclin1 with Bcl-2/Bcl-xL.
SIGNOR-278502
Q06187
P42336
0
phosphorylation
up-regulates activity
0.514
Activation of Btk occurs by transphosphorylation of tyrosine 551 in the catalytic domain, resulting in a dramatic increase in the catalytic activity of the kinase (11, 12, 13). This allows for autophosphorylation at tyrosine 223 in the SH3 domain (14). Both Lyn and Syk have been demonstrated to be involved in BCR-mediated Btk activation (11), but processes that drive colocalization of these kinases are ill-defined. Recently, it was suggested that phosphatidylinositol 3-kinase (PI3-K) is also involved in Btk activation
SIGNOR-249610
Q14164
Q13370
1
phosphorylation
up-regulates activity
0.2
While IKK\u03b5 phosphorylates and activates PDE3B to induce catecholamine resistance, TBK1 inhibits AMPK activity to reduce catabolism via this pathway.
SIGNOR-278517
O75969
Q9BYT3
0
phosphorylation
up-regulates quantity by stabilization
0.2
Differential phosphoproteomic analysis and in vitro kinase assay identified novel phosphorylation substrates of STK33, fibrous sheath components AKAP3 and AKAP4, whose expression levels decreased in testis after deletion of Stk33.
SIGNOR-272955
Q15678
Q03135
1
dephosphorylation
down-regulates activity
0.2
Finally, PTPN14 overexpression in B16F10 cells reduced the ability of CAV1 to induce metastasis in vivo.|Moreover, the CAV1 (Y14F) mutant protein was shown to co-immunoprecipitate with PTPN14 even in the absence of E-cadherin, and overexpression of PTPN14 reduced CAV1 phosphorylation on tyrosine 14, as well as suppressed CAV1 enhanced cell migration, invasion and Rac-1 activation in B16F10, metastatic colon [HT29 (US)] and breast cancer (MDA-MB-231) cell lines.
SIGNOR-277054
Q9Y4A8
P15559
1
transcriptional regulation
down-regulates quantity by repression
0.338
Deletion mutation analysis revealed that Nrf3 repression of NQO1 gene expression required heterodimerization and DNA binding domains but not transcriptional activation domain of Nrf3.
SIGNOR-268976
P30086
Q05655
0
phosphorylation
up-regulates
0.301
Here we show that the raf kinase inhibitor protein (rkip) is a physiological inhibitor of grk-2. After stimulation of gpcr, rkip dissociates from its known target, raf-1 (refs 6-8), to associate with grk-2 and block its activity. This switch is triggered by protein kinase c (pkc)-dependent phosphorylation of the rkip on serine 153.
SIGNOR-119551
Q14576
O14672
1
post transcriptional regulation
up-regulates quantity
0.2
Neuronal ELAV (nELAV) proteins are RNA-binding proteins which play a physiological role in controlling gene expression in memory formation, and their alteration may contribute to cognitive impairment associated with neurodegenerative pathologies such as Alzheimer's disease (AD). The experiments show for the first time that ADAM10mRNA represents a nELAV target and that these RNA-binding proteins can play a role in the post-transcriptional regulation of ADAM10 expression. nELAV proteins specifically bind the ADAM10 mRNA and this binding is disrupted following Aβ exposure
SIGNOR-266864
P08047
P08243
1
transcriptional regulation
up-regulates quantity by expression
0.2
Sp1 and Sp3 Activate Transcription Driven by the AS Promoter
SIGNOR-268019
P12882
Q14814
0
transcriptional regulation
up-regulates quantity by expression
0.34
Myocyte enhancer factor-2 and serum response factor binding elements regulate fast Myosin heavy chain transcription in vivo. We show that the upstream promoter region of the gene most abundantly expressed in mouse skeletal muscles, IIb MyHC, retains binding activity and transcriptional activation for three positive transcription factors, the serum response factor, Oct-1, and myocyte enhancer factor-2, whereas the other two genes (IIa and IId/x) have nucleotide substitutions in these sites that reduce binding and transcriptional activation
SIGNOR-238751
P00519
P43351
1
phosphorylation
up-regulates activity
0.685
C-Abl tyrosine kinase associates with and phosphorylates Rad52 on tyrosine 104. he functional significance of c-Abl-dependent phosphorylation of Rad52 is underscored by our findings that cells that express the phosphorylation-resistant Rad52 mutant, in which tyrosine 104 is replaced by phenylalanine, exhibit compromised nuclear foci formation in response to IR.
SIGNOR-251435
Q05682
P27361
0
phosphorylation
down-regulates
0.478
The actin binding properties of the minimal inhibitory region of caldesmon, residues 750-779, alter upon map kinase phosphorylation of ser-759. This phosphorylation leads to markedly diminished actin affinity.
SIGNOR-86741
Q13501
Q05655
0
phosphorylation
up-regulates activity
0.367
Data presented here suggested that Vps34 stimulates tumor development mainly through PKC-\u03b4- activation of p62.|In conclusion, elevation of Vps34 results in tumor progression via the PKC-\u03b4-phosphorylation of p62 at S349 and PKC-\u03b4 involved phosphorylation of Raf 1 at Y340/341.|Vps34 induces PKC-\u03b4-dependent phosphorylation of p62.
SIGNOR-280086
P23769
P01222
1
transcriptional regulation
up-regulates quantity by expression
0.39
Pit-1, is necessary but not sufficient to allow basal transcription of the mTSHβ gene.The analysis of the mTSHβ gene described in this report provides evidence for the participation of a zinc finger factor, GATA-2, with a POU homeodomain partner, Pit-1, on a such a composite element.In summary, we have shown the requirement for at least two different classes of transcription factors to regulate mTSHβ gene expression. Both GATA-2 and Pit-1 can bind independently to the P1 region of the promoter, form a heteromeric complex with DNA, and functionally synergize to activate TSHβ promoter activity.
SIGNOR-267253
Q16531
Q9NRC8
0
deacetylation
down-regulates activity
0.357
Here, we show that DDB1 is acetylated and acetylation promotes DDB1 binding to CUL4. We also identify nucleolar sirtuin 7 (SIRT7) as a major deacetylase that negatively regulates DDB1-CUL4 interaction.
SIGNOR-275900
P35226
P35226
2
transcriptional regulation
up-regulates quantity by expression
0.2
Here, we report that BMI1 autoactivates its own promoter via an E-box present in its promoter.
SIGNOR-245344
P10997
P16519
0
cleavage
up-regulates activity
0.465
The processing of proinsulin to insulin occurs in the secretory granules at the C-terminal end of pairs of basic amino acids, Arg31-Arg32 and Lys64-Arg65 [9,10]. Following cleavage, by the prohormone convertases, PC3 (also known as PC1) and PC2, the pair of basic amino acids are removed rapidly by carboxypeptidase E (CPE) to produce the mature insulin molecule
SIGNOR-261791
Q9P1W9
Q13541
1
phosphorylation
up-regulates activity
0.414
Further, PIM2 triggered phosphorylation of AKT and 4EBP1 (XREF_FIG) clearly demonstrating the activation of PI3K pathway.
SIGNOR-279091
P30559
O95837
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-257332
Q9UBF6
P42574
1
ubiquitination
down-regulates activity
0.2
SAG (Sensitive to Apoptosis Gene), also known as RBX2 (RING box protein 2), ROC2 (Regulator of Cullins 2), or RNF7 (RING Finger Protein 7), was originally cloned in our laboratory as a redox inducible antioxidant protein and later characterized as the second member of the RBX/ROC RING component of the SCF (SKP1-CUL-F-box Proteins) E3 ubiquitin ligase.  by forming a complex with other components of the SCF E3 ligase, SAG promotes ubiquitination and degradation of a number of protein substrates, including c-JUN, DEPTOR, HIF-1α, IκBα, NF1, NOXA, p27, and procaspase-3, thus regulating various signaling pathways and biological processes.
SIGNOR-271448
Q01344
P07948
0
phosphorylation
up-regulates activity
0.475
Lyn activate and expand IL-5RA intracellular signaling through FIP1L1-PDGFRA/JAK2/Lyn/Akt network complex, provoking eosinophils proliferation and exaggerated activation manifested as CEL.|We further delineated that Lyn can induce IL-5RA tyrosine phosphorylation and physically associate with IL-5RA in F/P expressing cells.
SIGNOR-279059
P19484
P00519
0
phosphorylation
down-regulates activity
0.2
Our data show that c-Abl promotes TFEB tyrosine phosphorylation and that its inhibition induces TFEB activity.|c-Abl Inhibition Activates TFEB and Promotes Cellular Clearance in a Lysosomal Disorder Summary The transcription factor EB ( TFEB ) has emerged as a master regulator of lysosomal biogenesis , exocytosis , and autophagy , promoting the clearance of substrates stored in cells .
SIGNOR-279583
Q02156
Q8NER1
1
phosphorylation
up-regulates activity
0.2
We found that mutation of S800 to alanine significantly reduced the PMA-induced enhancement of capsaicin-evoked currents and the direct activation of TRPV1 by PMA. Mutation of S502 to alanine reduced PMA enhancement of capsaicin-evoked currents, but had no effect on direct activation of TRPV1 by PMA. Conversely, mutation of T704 to alanine had no effect on PMA enhancement of capsaicin-evoked currents but dramatically reduced direct activation of TRPV1 by PMA.
SIGNOR-249232
Q00987
Q99466
1
ubiquitination
down-regulates
0.37
We demonstrate that the intracellular domain of notch 4 is targeted for ubiquitylation and hence degradation by the ubiquitin ligase mdm2.
SIGNOR-172826
P60880
O95295
2
binding
up-regulates activity
0.582
In the present study, we used yeast two-hybrid analysis to identify a new binding partner of torsinA, the SNARE-associated protein snapin. We have reported that snapin shows a robust interaction with wild type and mutant torsinA. we have demonstrated that this portion of torsinA and/or the adjacent linker region has the additional role of recruiting snapin. we found that snapin, which binds SNAP-25 (synaptosome-associated protein of 25,000 Da) and enhances the association of the SNARE complex with synaptotagmin, is an interacting partner for both wild type and mutant torsinA.
SIGNOR-261171
P15056
P27361
0
phosphorylation
down-regulates
0.645
Erk-induced phosphorylation of b-raf on t753 promoted the disassembly of raf heterodimers, and the mutation of t753 prolonged growth factor-induced heterodimerization. The b-raf t753a mutant enhanced differentiation of pc12 cells, which was previously shown to be dependent on sustained erk signaling. Site is critical for v-src dependent modulation of slk kinase activity.
SIGNOR-144827
Q9Y3M2
P35222
2
binding
down-regulates
0.693
Here we report a conserved nuclear protein, named chibby, which was identified in a screen for proteins that directly interact with the c-terminal region of beta-catenin. In mammalian cultured cells we demonstrate that chibby inhibits beta-catenin-mediated transcriptional activation by competing with lef-1 to bind to beta-catenin.
SIGNOR-100835
O95863
Q9NRM7
0
phosphorylation
up-regulates
0.528
Lats2 kinase potentiates snail1 activity by promoting nuclear retention upon phosphorylation. during tgf_-induced emt lats2 is activated and snail1 phosphorylated at t203.
SIGNOR-176647
P27361
Q8N122
1
phosphorylation
up-regulates activity
0.469
We found three proline-directed residues within raptor, ser(8), ser(696), and ser(863), which are directly phosphorylated by erk1/2. Expression of phosphorylation-deficient alleles of raptor revealed that phosphorylation of these sites by erk1/2 normally promotes mtorc1 activity and signaling to downstream substrates, such as 4e-bp1.
SIGNOR-169530
Q14790
P55210
1
cleavage
up-regulates
0.742
Casp8 can activate downstream caspases like caspase-6, and caspase-7 by directly cleaving them.
SIGNOR-58118
P35222
Q9UJ99
2
binding
up-regulates activity
0.332
At its C-terminus, cadherin interacts with β-catenin, which dynamically associates with α-catenin, a direct binding partner of filamentous actin
SIGNOR-265860
Q9UBK2
O00327
1
transcriptional regulation
up-regulates quantity by expression
0.519
Transcriptional coactivator PGC-1α integrates the mammalian clock and energy metabolism. Here we show that PGC-1alpha (Ppargc1a), a transcriptional coactivator that regulates energy metabolism, is rhythmically expressed in the liver and skeletal muscle of mice. PGC-1alpha stimulates the expression of clock genes, notably Bmal1 (Arntl) and Rev-erbalpha (Nr1d1), through coactivation of the ROR family of orphan nuclear receptors.
SIGNOR-268031
Q8N726
Q00987
1
relocalization
down-regulates activity
0.765
We propose that p14(arf) increases the binding of p53-mdm2 complexes to chromatin, thereby limiting the access of protein deacetylases to p53.
SIGNOR-192697
P05129
P30086
1
phosphorylation
up-regulates activity
0.381
Here we report that one mechanism involves dissociation of Raf kinase inhibitory protein (RKIP) from Raf-1. Classic and atypical but not novel PKC isoforms phosphorylate RKIP at serine 153 (Ser-153). RKIP Ser-153 phosphorylation by PKC either in vitro or in response to 12-O-tetradecanoylphorbol-13-acetate or epidermal growth factor causes release of RKIP from Raf-1, whereas mutant RKIP (S153V or S153E) remains bound. I
SIGNOR-249190
P17483
P08833
1
transcriptional regulation
up-regulates quantity by expression
0.2
These data showed that Hox genes selectively activate the transcription of theIGFBP-1
SIGNOR-261636
Q13315
O43504
1
phosphorylation
up-regulates activity
0.336
Strikingly, we found that the kinase ataxia telangiectasia mutated (ATM) phosphorylated HBXIP at Ser (108).|The knockdown of ATM by siRNA remarkably decreased the levels of serine phosphorylation and blocked the nuclear import of HBXIP.
SIGNOR-279791
P06239
Q08881
1
phosphorylation
up-regulates
0.554
Lck phosphorylates the activation loop tyrosine of the Itk kinase domain and activates Itk kinase activity. The major site of Lck phosphorylation on Itk was mapped to the conserved tyrosine (Tyr511) in the activation loop of the Itk kinase domain.
SIGNOR-251380
Q38SD2
P53350
0
phosphorylation
up-regulates activity
0.345
Here we show that LRRK1 is a PLK1 substrate that is phosphorylated on Ser 1790. PLK1 phosphorylation is required for CDK1-mediated activation of LRRK1 at the centrosomes
SIGNOR-275467
P48729
P63104
1
phosphorylation
down-regulates activity
0.579
This protein kinase has been identified as casein kinase Ialpha (CKIalpha) by peptide mapping analysis and sequencing. Among mammalian 14-3-3, only 14-3-3 tau possesses a phosphorylatable residue at the same position (Ser-233), and we show that this residue is also phosphorylated by CKI. In addition, we show that 14-3-3 zeta is exclusively phosphorylated on Thr-233 in human embryonic kidney 293 cells. The residue 233 is located within a region shown to be important for the association of 14-3-3 to target proteins. | We have now shown that in vivo phosphorylation of 14-3-3 zeta at the CKIalpha site (Thr-233) negatively regulates its binding to c-Raf, and may be important in Raf-mediated signal transduction.
SIGNOR-250796
P53350
Q96PY5
2
binding
up-regulates activity
0.2
Phosphorylation of hCenexin1 at S796 is critical for the hCenexin1-Plk1 interaction.Here we show that a splice variant of hODF2 called hCenexin1, but not hODF2 itself, efficiently localizes to somatic centrosomes via a variant-specific C-terminal extension and recruits Plk1 through a Cdc2-dependent phospho-S796 motif within the extension. This interaction and Plk1 activity were important for proper recruitment of pericentrin and gamma-tubulin, and, ultimately, for formation of normal bipolar spindles.
SIGNOR-273614