IdA
stringlengths
6
21
IdB
stringlengths
6
21
labels
int64
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
Q16543
P19784
0
phosphorylation
up-regulates activity
0.489
Phosphorylation of serine 13 is required for the proper function of the Hsp90 co-chaperone, Cdc37. | In this report, we demonstrate that mammalian Cdc37 is phosphorylated on Ser13 in situ in rabbit reticulocyte lysate and in cultured K562 cells and that casein kinase II is capable of quantitatively phosphorylating recombinant Cdc37 at this site.
SIGNOR-250982
O95837
P35348
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-257195
Q13153
O14950
1
phosphorylation
up-regulates activity
0.484
It has been shown that PAK1 phosphorylates and activates MLC2, leading to cell motility [ xref ].
SIGNOR-280053
P41597
P13500
2
binding
up-regulates activity
0.786
The investigators showed that myoblasts constitutively express receptors for CCL2 (CCR2), CCL3 (CCR1 and CCR5), and CCL4 (CCR5), and that stimulation with either CCL2 or CCL4 was sufficient to promote myoblast proliferation. 
SIGNOR-255113
Q13542
P42345
0
phosphorylation
down-regulates
0.661
Here, we show that cancer cells acquire resistance to astori by downregulating eukaryotic translation initiation factor (eif4e)-binding proteins (4e-bps-eif4ebp1, eif4ebp2).
SIGNOR-122014
P17612
P52565
1
phosphorylation
down-regulates
0.387
The results indicate that phosphorylation of gdi_ at ser174 by pka suppresses rhoa activity, providing a potential protective signaling mechanism for inflammatory injury.
SIGNOR-180576
P23759
Q03164
2
binding
up-regulates
0.2
Carm1 specifically methylates multiple arginines in the n-terminus of pax7. Methylated pax7 directly binds the c-terminal cleavage forms of the trithorax proteins mll1/2 resulting in the recruitment of the ash2l:mll1/2:wdr5:rbbp5 histone h3k4 methyltransferase complex to regulatory enhancers and the proximal promoter of myf5.
SIGNOR-198626
Q9C0B5
P06241
0
phosphorylation
up-regulates quantity by stabilization
0.388
Our study demonstrates that under basal conditions, PSD-95 and Fyn cooperatively stabilize DHHC5 at the synaptic membrane through Fyn-mediated phosphorylation of DHHC5 at tyrosine residue 533 and the subsequent inhibition of DHHC5 association with endocytic proteins (Fig. 10).
SIGNOR-279738
P53350
P12830
1
phosphorylation
down-regulates quantity by destabilization
0.297
Priming phosphorylation of Cdh1 by the Cdk2/cyclin A kinase complex allows Plk1 to bind to Cdh1 and phosphorylate Cdh1 at Ser138 and Ser146. Phosphorylation of Cdh1 at Ser138 and Ser146 then triggers its interaction with, and subsequent ubiquitination by, SCFbeta-TRCP
SIGNOR-274054
P37840
P43405
0
phosphorylation
down-regulates
0.532
Here, we show that alpha-synuclein (alpha-syn) is an outstanding substrate for the protein tyrosine kinase p72syk (syk), which phosphorylates three tyrosyl residues in its c-terminal domain (y-125, y-133, and y-136), here, we show that _-syn is an outstanding substrate for syk and that once it is tyrosine phosphorylated, it loses the ability to form oligomers.
SIGNOR-113065
P15941
O43474
2
binding
up-regulates activity
0.281
Previous work has shown that the Kruppel-like factor 4 (KLF4) transcription factor represses p53 transcription by binding to the PE21 element. Our results show that MUC1-C binds constitutively to KLF4, occupies PE21 with KLF4, and enhances the KLF4 occupancy of PE21. 
SIGNOR-270543
P01308
P08069
2
binding
up-regulates
0.89
Because of the sequence homology and tertiary structure similarities between proinsulin (pi) and insulin-like growth factor-i (igf-i), it is possible that pi interacts with the igf-i receptor with higher affinity than insulin.
SIGNOR-22083
Q9GZM8
P60510
0
dephosphorylation
down-regulates activity
0.395
Protein phosphatase 4 catalytic subunit regulates Cdk1 activity and microtubule organization via NDEL1 dephosphorylation|PP4c selectively dephosphorylates NDEL1 at Cdk1 sites. We also demonstrate that PP4c negatively regulates Cdk1 activity at the centrosome.|We next examined the ability of PP4c to dephosphorylate a Cdk1 phosphorylation site, phospho-T219
SIGNOR-248550
P01111
Q07889
0
guanine nucleotide exchange factor
up-regulates activity
0.78
Sos and Ras-GRF are two families of guanine nucleotide exchange factors that activate Ras proteins in cells. Sos proteins are ubiquitously expressed and are activated in response to cell-surface tyrosine kinase stimulation Sos1 and Ras-GRF1 activate the Ras proteins Ha-Ras, N-Ras, and Ki-Ras
SIGNOR-110566
P31749
P48431
1
phosphorylation
up-regulates quantity by stabilization
0.532
In contrast, phosphorylation of Sox2 by AKT1 at T118 blocks K119me by Set7 and stabilizes Sox2.
SIGNOR-279003
Q13469
P19883
1
transcriptional regulation
up-regulates quantity by expression
0.2
MyoD, CREB, and NFAT Mediate the Transcriptional Activation of the Follistatin Promoter Induced by TSA
SIGNOR-251729
Q9NRC8
P22087
1
deacetylation
up-regulates activity
0.271
Here, we show that FBL is acetylated at several lysine residues by the acetyltransferase CBP and deacetylated by SIRT7.|hyperacetylation impairs the interaction of FBL with histone H2A and chromatin, thereby compromising H2AQ104 methylation (H2AQ104me) and rDNA transcription. SIRT7-dependent deacetylation of FBL ensures H2AQ104me and high levels of rRNA synthesis during interphase. |Global acetylome studies have shown that FBL is acetylated at four conserved lysine residues (K102, K121, K205, and K206)
SIGNOR-275894
Q9UHC6
Q6ZVD7
0
transcriptional regulation
down-regulates quantity by repression
0.2
In this study we performed chromatin immunoprecipitation coupled to shotgun cloning to discover novel STOX1A target genes. Our results show that CNTNAP2, a member of the neurexin family, is directly downregulated by STOX1A.
SIGNOR-269065
Q9NVD7
P28482
0
phosphorylation
up-regulates activity
0.259
Actopaxin (alpha-parvin) is a paxillin, integrin-linked kinase, and F-actin binding focal adhesion protein with several serine phosphorylation sites in the amino terminus that contribute to the regulation of cell spreading and migration.|Actopaxin phosphorylation of Ser4/8 enhances cell migration whereas a nonphosphorylatable (Quint) mutant suppresses migration in U2OS osteosarcoma cells (7).
SIGNOR-265759
P10589
P22888
1
transcriptional regulation
down-regulates quantity by repression
0.275
Functional analysis showed that EAR2 and EAR3/COUP-TFI repressed the hLHR promoter activity, whereas TR4 activated hLHR gene transcription.
SIGNOR-266218
O75376
P31749
0
phosphorylation
down-regulates
0.424
Akt-induced phosphorylation of n-cor at serine 1450 contributes to its misfolded conformational dependent loss (mcdl) in acute myeloid leukemia of the m5 subtype.
SIGNOR-198913
P54132
Q8IYW5
0
ubiquitination
up-regulates activity
0.262
Here, we demonstrate that the ubiquitin/SUMO-dependent DNA damage response (UbS-DDR), controlled by the E3 ligases RNF8/RNF168, triggers BLM recruitment to sites of replication fork stalling via ubiquitylation in the N-terminal region of BLM and subsequent BLM binding to the ubiquitin-interacting motifs of RAP80. 
SIGNOR-272114
P00533
Q8ND25
1
phosphorylation
up-regulates activity
0.27
Together, these results demonstrate that EGFR-dependent phosphorylation of ZNRF1 at Y103 promotes degradation of AKT and resultant activation of GSK3\u03b2, which mediates oxidative stress\u2013induced neuronal apoptosis ( xref ).
SIGNOR-279522
P04637
Q15759
0
phosphorylation
up-regulates
0.611
We show that prak activates p53 by direct phosphorylation.
SIGNOR-152843
O43586
P50570
2
binding
down-regulates
0.374
We show that pstpip1 associates with the regulator of endocytosis, dynamin 2, and pstpip1 expression impairs transferrin uptake and endocytosis
SIGNOR-178628
Q13200
Q05086
0
ubiquitination
down-regulates quantity by destabilization
0.277
Our experiments collectively suggest that UBE3A stimulates Wnt pathway activation by interacting with, ubiquitinating, and reducing the levels of multiple (PSMB1, PSMC2, PSMD2, and PSMD7) proteasome subunits.
SIGNOR-265133
P50148
P34998
2
binding
up-regulates activity
0.286
Previous studies have indicated that CRHR could couple to multiple Galpha proteins including Gs, Gi, and Gq/11 and then go on to induce changes in AC activity and activation of PLC-beta3
SIGNOR-268619
P78545
Q13153
0
phosphorylation
up-regulates
0.456
Phosphorylation-dependent regulation of stability and transforming potential of ets transcriptional factor ese-1 by p21-activated kinase 1. Pak1 selectively phosphorylates ese-1 at ser(207). Intriguingly, pak1 phosphorylation inactive mutant ese1-s207a is more unstable
SIGNOR-154743
Q9BPV8
P30679
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-257143
Q96T88
P24941
0
phosphorylation
down-regulates quantity by destabilization
0.303
UHRF1 is phosphorylated by CDK2/cyclin A. In vitro kinase assay was performed with CDK2/cyclin A using recombinant wild-type UHRF1 or UHRF1-S674A mutant 
SIGNOR-277192
Q01543
Q13547
0
deacetylation
up-regulates
0.2
Hdac1 interacts with fli1 and mediates its deacetylation / our previous studies have shown that pcaf-dependent acetylation of fli1 at lysine 380 decreases its protein stability / p300 promotes the interaction of fli1 with hdac1 and increases the dna binding ability of fli1 through deacetylation of lysine 380
SIGNOR-202689
P68400
P18146
1
phosphorylation
down-regulates activity
0.464
Casein kinase II associates with Egr-1 and acts as a negative modulator of its DNA binding and transcription activities in NIH 3T3 cells. | There are three CKII recognition sites (S376XXD, T389XE, and T516XXXD) in fragment 10.
SIGNOR-250858
O14965
P55072
2
binding
down-regulates activity
0.313
The UBXN-2/p37/p47 adaptors of CDC-48/p97 regulate mitosis by limiting the centrosomal recruitment of Aurora A.|We found that UBXN-2 and CDC-48 coimmunoprecipitated with AIR-1 from embryonic extracts
SIGNOR-265044
P25098
O95398
1
phosphorylation
down-regulates activity
0.2
The observation that GRK2 co-immunoprecipitates with Epac1 suggests a direct association between GRK2 and Epac1 in DRGs. xref A detailed study of the influence of GRK2 on the Epac1 level found that phosphorylation of ser108 in Epac1 by GRK2 can lead to a reduction of Epac1 activation. xref Downstream consequence of a reduction of GRK2 was explored. xref Low GRK2 expression in GRK2(\u00b1) DRGs was found to facilitate CPT-induced Rap1 activation and increase the phosphorylated ERK1/2 level.
SIGNOR-280001
Q96DX5
P12277
1
polyubiquitination
down-regulates quantity by destabilization
0.683
We demonstrate that creatine kinase B (CKB) interacts with Asb-9 in a specific, SOCS box-independent manner. This interaction increases the polyubiquitylation of CKB and decreases total CKB levels within the cell. The targeting of CKB for degradation by Asb-9 was primarily SOCS box-dependent and suggests that Asb-9 acts as a specific ubiquitin ligase regulating levels of this evolutionarily conserved enzyme.
SIGNOR-271623
P15735
P46019
2
binding
down-regulates activity
0.916
Phk is among the most complex of the protein kinases so far elucidated. It has one catalytic (gamma) subunit and three different regulatory (alpha, beta, and delta) subunits, a molecular mass of 1.3 X 106 daltons, and each holoenzyme molecule is presumed to contain four molecules of each subunit. The three regulatory subunits inhibit the phosphotransferase activity of the gamma subunit.
SIGNOR-267406
Q9UQM7
P29475
1
phosphorylation
down-regulates activity
0.471
It was found that purified recombinant nNOS was phosphorylated by CaM-K Ialpha, CaM-K IIalpha, and CaM-K IV at Ser847 in vitro. Replacement of Ser847 with Ala (S847A) prevented phosphorylation by CaM kinases. Phosphorylated recombinant wild-type nNOS at Ser847 (approximately 0.5 mol of phosphate incorporation into nNOS) exhibited a 30% decrease of Vmax with little change of both the Km for L-arginine and Kact for CaM relative to unphosphorylated enzyme. The activity of mutant S847D was decreased to a level 50-60% as much as the wild-type enzyme. The decreased NOS enzyme activity of phosphorylated nNOS at Ser847 and mutant S847D was partially due to suppression of CaM binding, but not to impairment of dimer formation which is thought to be essential for enzyme activation.
SIGNOR-250635
Q92915
Q8NEV1
0
phosphorylation
up-regulates activity
0.269
Bioluminescence-based screening of small molecule modulators of the FGF14:Nav1.6 complex identified 4,5,6,7 -: tetrabromobenzotriazole (TBB), a potent casein kinase 2 (CK2) inhibitor, as a strong suppressor of FGF14:Nav1.6 interaction. Inhibition of CK2 through TBB reduces the interaction of FGF14 with Nav1.6 and Nav1.2 channels. Mass spectrometry confirmed direct phosphorylation of FGF14 by CK2 at S228 and S230, and mutation to alanine at these sites modified FGF14 modulation of Nav1.6-mediated currents.
SIGNOR-275743
Q00653
P20749
2
binding
up-regulates
0.573
The cyclin d1 elevation is caused not by increased p65/p50 action but rather by increased nuclear activity of bcl-3-associated nf-kappab p50 and p52.
SIGNOR-146768
Q8ND76
P06493
0
phosphorylation
down-regulates activity
0.595
Therefore, CDK1 may trigger CFP1 degradation through some indirect mechanisms rather than CFP1 phosphorylation.|This result suggests that, although CDK1 triggers both phosphorylation and degradation of CFP1 protein, phosphorylation of CFP1 by CDK1 is not a prerequisite for its degradation during cell division.
SIGNOR-279012
P63096
P28335
2
binding
up-regulates activity
0.293
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-256734
Q9HC97
P09471
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 ≥ -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-256996
Q15466
P10275
2
binding
down-regulates
0.415
We demonstrated that shp inhibited both ar-lbd and ntd-dependent transactivation, which evidenced for the first time a protein capable of inhibiting a steroid receptor amino-terminal-dependent transactivation. We further characterized the shp mechanism of action by showing that shp reversed ar coactivator-mediated activation
SIGNOR-112589
P12931
P20701
1
phosphorylation
down-regulates activity
0.421
PTKs of the JAK and SRC families have a regulatory role in LFA-1 affinity triggering, with JAKs showing a positive role (3), whereas SRCs possibly have a negative role.
SIGNOR-254741
P15172
Q02363
2
binding
down-regulates activity
0.54
Id1 and Id2 interacted strongly with MyoD and Myf-5.Each Id was able to disrupt the ability of E protein-MyoD complexes to transactivate from a muscle creatine kinase reporter construct in vivo.
SIGNOR-240268
P16403
O76064
0
polyubiquitination
down-regulates
0.2
ITCH interacts with and ubiquitinates linker histone H1.2 at K46. ITCH biochemically competes with RNF168 and RNF8 to polyubiquitinate histone H1.2.
SIGNOR-272928
P78527
P50876
0
polyubiquitination
down-regulates quantity by destabilization
0.568
We show that RNF144A induces ubiquitination of DNA-PKcs in vitro and in vivo and promotes its degradation.
SIGNOR-272213
Q6ZNA4
P61956
1
polyubiquitination
down-regulates quantity by destabilization
0.626
Arkadia ubiquitinates poly-SUMO2 chains in a SIM- and RING-dependent manner.
SIGNOR-272882
P52948
P59634
2
binding
down-regulates activity
0.2
Orf6 of SARS-CoV antagonizes host interferon signaling by perturbing nuclear transport, and the NUP98-RAE1 interaction with Orf6 may perform the same function for SARS-CoV-2.
SIGNOR-260976
Q05397
Q05209
0
dephosphorylation
down-regulates activity
0.538
We demonstrate here that activated Ras induces tyrosine dephosphorylation and inhibition of FAK mediated by the Ras downstream Fgd1-Cdc42-PAK1-MEK-ERK signaling cascade.| PIN1 binding and prolyl isomerization of FAK cause PTP-PEST to interact with and dephosphorylate FAK Y397. Inhibition of FAK mediated by this signal relay promotes Ras-induced cell migration, invasion, and metastasis.
SIGNOR-248661
Q86V86
Q92934
1
phosphorylation
down-regulates activity
0.346
Pim kinases phosphorylate multiple sites on Bad and promote 14-3-3 binding and dissociation from Bcl-XL. pim kinases are constitutively active when expressed in HEK-293 cells and are able to phosphorylate the Bcl-2 family member Bad on three residues, Ser112, Ser136 and Ser155 in vitro and in cells.
SIGNOR-250399
P10828
P27361
0
phosphorylation
down-regulates activity
0.428
We concluded that serine 142 of the tr dbd is the likely site of phosphorylation by t(4)-activated mapk and that the docking site on tr for activated mapk includes residues 128-133 (kgffrr), a basic amino acid-enriched motif novel for mapk substrates. Tr mutations in the proposed mapk docking domain and at residue 142 modulated t(4)-conditioned shedding of co-repressor and recruitment of co-activator proteins by the receptor, and they altered transcriptional activity of tr in a thyroid hormone response element-luciferase reporter assay.
SIGNOR-102224
Q99661
Q13153
0
phosphorylation
down-regulates
0.385
Here we found that mcak is a cognate substrate of pak1 wherein pak1 phosphorylates mcak on serines 192 and 111 both in vivo and in vitro. Furthermore, we found that pak1 phosphorylation of mcak on serines 192 and 111 preferentially regulates its microtubule depolymerization activity and localization to centrosomes
SIGNOR-199084
Q96SB3
P17612
0
phosphorylation
down-regulates activity
0.31
Spinophilin is phosphorylated in vitro by protein kinase A (PKA). two major sites of phosphorylation, Ser-94 and Ser-177, that are located within the actin-binding domain of spinophilin. Phosphorylation of spinophilin by PKA modulated the association between spinophilin and the actin cytoskeleton. phosphorylation of spinophilin reduced the stoichiometry of the spinophilin-actin interaction. In contrast, the ability of spinophilin to bind to PP1 remained unchanged.
SIGNOR-250035
Q86TM6
Q16236
1
ubiquitination
down-regulates quantity by destabilization
0.2
NRF2 is negatively regulated by three E3 ubiquitin ligase complexes: the KEAP1-CUL3-RBX1 complex, the β-TrCP-SKP1-CUL1-RBX1 complex, and HRD1.
SIGNOR-267360
P16333
P00533
2
binding
up-regulates activity
0.576
We show that epidermal growth factor or platelet-derived growth factor stimulation of intact human or murine cells leads to phosphorylation of Nck protein on tyrosine, serine, and threonine residues
SIGNOR-252089
Q96SN8
O95613
2
binding
up-regulates activity
0.819
Our observation that Cep215 may function downstream of pericentrin suggests that the two proteins affect centrosome cohesion through a common mechanism. |Finally, depletion of pericentrin caused an almost complete loss of Cep215 from centrosomes, a detectable reduction in centrosomal levels of Cep68 and rootletin, but no significant effect on C-Nap1 (Fig. 6C and Table 1). Taken together, these results point to functional (and perhaps molecular) interactions between (1) Cep68 and rootletin and (2) Cep215 and pericentrin.
SIGNOR-260309
P13501
P51681
2
binding
up-regulates activity
0.937
CCL5, also known RANTES (regulated on activation, normal T cell expressed and secreted), is a potent chemoattractant for a variety of leukocytes, including T cells, mono- cytes, NK cells, and basophils, signaling via the CCR1, CCR3, and CCR5 cell surface receptors [59]. Among these receptors, CCL5 has the highest affinity for CCR5.
SIGNOR-277726
P27361
P48431
1
phosphorylation
down-regulates activity
0.452
Mass spectrum analysis was employed after an in vitro kinase assay in which cells were incubated with or without ERK1-active kinase, and the results demonstrated that Sox2 was phosphorylated by ERK1 directly at S251, which was further verified by western blotting for the specific antibody targeting S251 phosphorylated Sox2 after the in vitro kinase assay.|Mechanistically, ERK1 kinase promoted autophagic degradation of Sox2 via phosphorylation of Sox2 at Ser251 and further SUMOylation of Sox2 at Lys245 in non CSCs.
SIGNOR-279071
P36941
Q12933
2
binding
up-regulates activity
0.586
Endogenous association of traf2, traf3, ciap1, and smac with lymphotoxin beta receptor reveals a novel mechanism of apoptosis.
SIGNOR-97950
Q5S007
Q96CW1
1
phosphorylation
up-regulates activity
0.259
These data confirmed that LRRK2 phosphorylates AP2M1 at Thr 156 in vitro.
SIGNOR-278183
Q12778
P30304
0
dephosphorylation
up-regulates activity
0.313
In this study, we revealed that Cdc25A enhances Foxo1 stability by dephosphorylating Cdk2, and Foxo1 was shown to directly regulate transcription of the metastatic factor MMP1.
SIGNOR-277139
P63096
Q96P68
2
binding
up-regulates activity
0.385
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-257042
P45983
Q13526
1
phosphorylation
up-regulates quantity by stabilization
0.272
Mechanistically, the JNK kinases directly bind to and phosphorylate PIN1 at Ser115, and this phosphorylation prevents PIN1 mono-ubiquitination at Lys117 and its proteasomal degradation.
SIGNOR-277562
P35900
P49137
0
phosphorylation
up-regulates activity
0.2
P38 phosphorylates the type II keratin, K8 at Ser73, whereas MK2 phosphorylates the binding partners K18 at Ser52 and K20 at Ser13.
SIGNOR-263071
Q9NQL2
Q8NFG4
0
gtpase-activating protein
up-regulates activity
0.683
The folliculin tumor suppressor is a GAP for the RagC/D GTPases that signal amino acid levels to mTORC1 [..} RagC/D is a key regulator of the interaction of mTORC1 with the Rag heterodimer and that, unexpectedly, RagC/D must be GDP-bound for the interaction to occur
SIGNOR-256504
P20309
O95837
2
binding
up-regulates activity
0.411
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-257134
P42574
Q4V328
1
cleavage
up-regulates activity
0.414
These results suggest that the region of GRASP‐1 downstream of the Caspase‐3‐cleavage site is capable of activating the JNK signaling pathway by enhancing the phosphorylation of JNK. these results suggest that full length GRASP‐1 does not enhance JNK pathway activity, possibly due to the inhibitory effect of the N‐terminal fragment on the C‐terminal fragment. In contrast, Caspase‐3 cleavage of GRASP‐1 releases the C‐terminal fragment, which in turn activates JNK signaling by serving as a scaffold protein.
SIGNOR-260641
P40763
Q14289
0
phosphorylation
up-regulates activity
0.428
These results imply that following EGF stimulation, PYK2 enhances a STAT3-dependent IL8 expression, thus creating a positive feedback loop between ErbB receptors, PYK2, and IL8.|These results suggest that PYK2-induced STAT3 phosphorylation is crucial for IL8 secretion, while IL8 is crucial for EGF-induced MMP9 transcription (Figure xref ) and for SKBR3 invasion (Figure xref ).
SIGNOR-279429
Q96DT5
Q92949
0
transcriptional regulation
up-regulates quantity by expression
0.361
FOXJ1 expression in basal cells induced the expression of a panel of cilia-associated genes, including centrin 2 (CETN2); dynein, axonemal, heavy chain 11 (DNAH11); dynein, axonemal, intermediate chain 1 (DNAI1); dynein, axonemal, light intermediate chain 1 (DNALI1); EF-hand domain, C-terminal, containing 1 (EFHC1); sperm associated antigen 6 (SPAG6); tektin 1 (TEKT1), TEKT2 and tubulin, alpha 1a (TUBA1A; Figure 3C and Additional file 2: Table S1).
SIGNOR-266931
P31948
P08238
2
binding
down-regulates activity
0.855
Hsp90 chaperone cycle is tightly regulated by another group of proteins referred to as ‘co-chaperones'. Their stability does not depend on Hsp90 function but they interact with distinct Hsp90 conformational states, providing directionality to the Hsp90 cycle4. Furthermore, certain co-chaperones, such as HOP and Cdc37p50 inhibit the Hsp90 chaperone cycle, assisting in delivery of distinct sets of client proteins (steroid hormone receptors and kinases, respectively) to the Hsp90 chaperone machine.
SIGNOR-261412
P19086
P41146
2
binding
up-regulates activity
0.252
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-257117
Q01094
Q99608
2
binding
down-regulates activity
0.601
Necdin interacts with E2F transcription factors and suppresses E2F1-dependent transcriptional activation of the cyclin-dependent kinase Cdk1 gene. Here we show that necdin serves as a suppressor of NPC proliferation in the embryonic neocortex.
SIGNOR-253382
P01137
P01222
1
transcriptional regulation
down-regulates quantity by repression
0.2
TGF-β inhibits thyroid-stimulated hormone (TSH)-induced NIS mRNA and protein levels in a dose-dependent manner. This effect takes place at the transcriptional level, as TGF-β inhibits TSH-induced transcription
SIGNOR-251991
Q06124
Q99683
1
dephosphorylation
up-regulates
0.367
Previously we have shown that tyrosine 718 of ask1 when phosphorylated is critical for socs1 binding and socs1-mediated degradation of ask1we identified jak2 and shp2 as a tyr-718-specific kinase and phosphatase, respectively.
SIGNOR-184604
P23560
P16220
0
transcriptional regulation
up-regulates quantity
0.488
Brain-derived neurotrophic factor (BDNF) is a critical molecule for learning and memory. Brain BDNF levels correlate with cognitive status. Activation of CREB facilitates the transcription of crucial proteins for activity-dependent plasticity particularly BDNF.
SIGNOR-265062
P78527
P15927
1
phosphorylation
down-regulates activity
0.579
We showed previously that UV irradiation increases phosphorylation of the p34 subunit of human replication protein A (RPA) and that this hyperphosphorylation correlated with loss of activity of the DNA replication complex. | we detected phosphorylation of the RPA complex by DNA-PK on RPA-p34 sites Ser-23, Ser-29, and Ser-11, -12, or -13
SIGNOR-248981
Q9Y210
Q13976
0
phosphorylation
down-regulates activity
0.491
PKG phosphorylated TRPC6, and both T70 and S322 were targeted. Both sites were functionally relevant, as 8Br-cGMP strongly suppressed current in wild-type TRPC6 channels, but not in those with phospho-silencing mutations (T70A, S322A or S322Q). 
SIGNOR-276271
Q96EP1
Q14527
1
polyubiquitination
down-regulates quantity by destabilization
0.482
CHFR functions as a ubiquitin ligase for HLTF to regulate its stability and functions. CHFR negatively regulates and ubiquitinates HLTF. Taken together, this is the first report identifying the regulatory mechanism of HLTF by CHFR, suggesting that CHFR-mediated downregulation of HLTF may help protect against cancer.
SIGNOR-271460
O00755
P09238
1
transcriptional regulation
up-regulates quantity by expression
0.2
We first proved that Wnt7a activated the canonical Wnt pathway through direct regulation of the MMP10 gene.
SIGNOR-278867
Q01813
Q9Y4P1
1
phosphorylation
up-regulates activity
0.2
In vitro kinase assay validated that PFKP functioning as a protein kinase phosphorylated ATG4B at S34. This phosphorylation could enhance ATG4B activity and p62 degradation. In addition, PFKP S386 phosphorylation was important to ATG4B S34 phosphorylation and autophagy in HEK293T cells.
SIGNOR-275832
P60953
P42768
2
binding
up-regulates activity
0.957
Cdc42 can induce Arp2/3-mediated filopodia formation through the activation of WASp (Wiskott-Aldrich syndrome proteins) and neuronal N-WASp (Rohatgi et al., 1999). Similarly, Rac1-enhanced lamellipodia formation is related to Arp2/3 activation by the WAVE (WASP-family verprolin-homologous) complex
SIGNOR-261869
Q8IXL6
Q13316
1
phosphorylation
up-regulates quantity
0.659
Fam20c knockdown decreased Dmp1 mRNA and increased Fgf23 mRNA in UMR-106 cells.|Relative migration distances of OPN and DMP1, which were the ratio of the migration distances of OPN or DMP1 co-expressed with mutant FAM20C to that with WT FAM20C, showed that only WT FAM20C could fully phosphorylate OPN and DMP1.
SIGNOR-280011
P10828
P28702
2
binding
up-regulates
0.636
Like many receptors belonging to the superfamily of steroid/thyroid nuclear receptors, thyroid hormone receptors (trs) bind to specific th-dna responsive elements (tre) upstream of target gene in heterodimeric complex with the 9-cis retinoid acid receptor (rxr
SIGNOR-81455
O14746
P31749
0
phosphorylation
up-regulates
0.732
Akt kinase enhances human telomerase activity through phosphorylation of htert subunit as one of its substrate proteins.
SIGNOR-67313
O14965
P30305
1
phosphorylation
up-regulates
0.722
We show that bypass of the g2/m checkpoint by the chk1 kinase inhibitor ucn-01 results in the activation of aurora-a and phosphorylation of cdc25b on s353
SIGNOR-139396
Q16763
P31749
0
phosphorylation
up-regulates quantity by stabilization
0.437
Mechanistically, Akt1 physically interacted with and phosphorylated UBE2S at Thr 152, enhancing its stability by inhibiting proteasomal degradation.
SIGNOR-265078
Q8IWT3
O15392
1
ubiquitination
down-regulates quantity
0.489
CUL9 promotes the ubiquitylation and degradation of survivin and is inhibited by CUL7.|Together, these results demonstrate the specificity of survivin ubiquitylation by CUL9 E3 ligase complex.
SIGNOR-278808
P17252
Q969H0
1
phosphorylation
down-regulates activity
0.345
Here, we report that Fbw7α, the only Fbw7 isoform detected in eggs, is phosphorylated by PKC (protein kinase C) at a key residue (S18) in a manner coincident with Fbw7α inactivation.
SIGNOR-277249
Q96A56
O95166
2
binding
up-regulates
0.345
Tp53inp1 is also able to interact with atg8-family proteins
SIGNOR-196664
P01106
Q9NVW2
0
ubiquitination
down-regulates quantity by destabilization
0.37
This suggests that RLIM negatively regulates the transcriptional activity of c-Myc.|We further showed that RLIM can promote polyubiquitination of c-Myc in cells.
SIGNOR-278551
P00519
O95433
1
phosphorylation
up-regulates activity
0.251
Here, we show that c-Abl kinase phosphorylates Y223 in human Aha1 (hAha1), promoting its interaction with Hsp90. This, consequently, results in an increased Hsp90 ATPase activity
SIGNOR-260938
P00519
P42345
1
phosphorylation
down-regulates
0.453
Abl binds directly to raft1 and phosphorylates raft1 in vitro and in vivo. c-abl inhibits autophosphorylation of raft1 and raft1-mediated phosphorylation p70(s6k).
SIGNOR-76562
P29317
Q13239
2
binding
down-regulates quantity by destabilization
0.414
These data are consistent with a model where SLAP induces Ephrin-independent EPHA2 degradation. | This activity is independent from CBL but requires SLAP SH3 interaction with the ubiquitination factor UBE4A and SLAP SH2 interaction with pTyr594-EPHA2.
SIGNOR-262964
O75473
Q6UXX9
2
binding
up-regulates
0.693
Here we demonstrate that lgr4 and lgr5 bind the r-spondins with high affinity and mediate the potentiation of wnt/betBeta-catenin signaling by enhancing wnt-induced lrp6 phosphorylation
SIGNOR-174532
Q9NR96
P58753
2
binding
up-regulates activity
0.439
To initiate the innate immune response, Toll-like receptors (TLRs) associate with cytoplasmic adaptor proteins through TIR (Toll/interleukin-1 receptor) domain interactions. The four principal signaling adaptor proteins include MyD88, MAL, TRIF and TRAM, and the fifth protein SARM, involved in negative regulation of TLR pathways, is usually considered a part of the TIR domain-containing adaptor protein group
SIGNOR-266748
P17677
Q6UB99
0
transcriptional regulation
up-regulates quantity by expression
0.2
Neurite growth-related genes such as Trkb, Bdnf, Gap43, Coronin 1B, and Rab13 are downregulated in ANKRD11-deficient neurons. 
SIGNOR-266736
P48730
Q9Y6Q9
1
phosphorylation
up-regulates
0.284
In this study, we show that both eralpha and aib1 are substrates for ck1delta in vitro, and identify a novel aib1 phosphorylation site (s601) targeted by ck1delta, significant for the co-activator function of aib1.
SIGNOR-184946
Q9UL54
O14733
2
binding
up-regulates
0.2
Immunoprecipitated psk phosphorylates myelin basic protein and transfected psk stimulates mkk4 and mkk7 and activates the c-jun n-terminal kinase mitogen-activated protein kinase pathway.
SIGNOR-74867
P14416
P41732
2
binding
down-regulates quantity
0.252
Tetraspanin-7 (TSPAN7) is expressed to variable degrees in different tissues, with the highest level in the brain, and multiple mutations in TSPAN7 have been implicated in intellectual disability. Our results showed that TSPAN7 was associated with DRD2 and reduced its surface expression by enhancing DRD2 internalization.Finally, TSPAN7 negatively affects DRD2-mediated signaling.
SIGNOR-265557