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Q9UI95
Q92733
0
relocalization
up-regulates
0.496
We found that the human papillary renal cell carcinoma-associated proteinprccinteracts with the cell cycle control proteinmad2b, and translocates this protein to the nucleus where it exerts its mitotic checkpoint function.
SIGNOR-126516
P17612
Q01970
1
phosphorylation
down-regulates
0.26
These data indicate that pkc and pka act similarly in that they inhibit galpha(q)-stimulated plcbeta(3) as a result of phosphorylation of ser(1105).
SIGNOR-79148
P67775
P19429
1
dephosphorylation
down-regulates
0.401
The major phosphatase thought to dephosphorylate ctni and phospholamban is type 2a protein phosphatase (pp2a) [61]. Activation of pp2a and ensuing dephosphorylation of regulatory proteins is involved in the anti-adrenergic effects of adenosine and muscarinic receptor activation see also fig2.
SIGNOR-134601
P29375
Q16695
1
demethylation
up-regulates activity
0.2
KDM5 subfamily is capable of removing tri‐ and di‐ methyl marks from lysine 4 on histone H3 (H3K4). Depending on the methylation site, its effect on transcription can be either activating or repressing.
SIGNOR-264300
P29371
P38405
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-256937
P31749
P55211
1
phosphorylation
down-regulates activity
0.775
Akt phosphorylated recombinant casp9 in vitro on serine-196 and inhibited its protease activity
SIGNOR-252581
Q9NPB6
P37173
0
phosphorylation
up-regulates
0.466
We demonstrate that Par6, a regulator of epithelial cell polarity and tight-junction assembly, interacts with TGFbeta receptors and is a substrate of the type II receptor, TbetaRII. [...] These data suggest that T_RII phosphorylates Par6 at its penultimate residue, Ser345.
SIGNOR-227484
Q01196
Q92794
2
binding
up-regulates
0.465
The activation domain of aml1 is required for its interaction with moz / moz activates aml1_mediated transcription
SIGNOR-113056
Q13489
Q7Z570
0
transcriptional regulation
down-regulates quantity by repression
0.2
ZNF804A has been implicated in susceptibility to schizophrenia by several genome-wide association studies (GWAS), follow-up association studies and meta-analyses. ZNF804A was identified as a schizophrenia-associated gene by GWAS and was predicted to play a role in DNA binding and transcription To identify the genes that are affected by ZNF804A, we manipulated the expression of the ZNF804A protein in HEK293 human embryonic kidney cell lines and performed a cDNA microarray analysis followed by qPCR. We found that ZNF804A-overexpression up-regulated four genes (ANKRD1, INHBE, PIK3AP1, and DDIT3) and down-regulated three genes (CLIC2, MGAM, and BIRC3).
SIGNOR-269467
P12931
Q9UKT4
1
phosphorylation
up-regulates
0.324
We found that emi1 stability was regulated by phosphorylation and mutation of tyrosine 142 reduced the stability. Our data suggested bcr-abl-induced emi1 phosphorylation might be mediated by src kinase.
SIGNOR-167529
O43164
Q9Y4C4
1
ubiquitination
up-regulates activity
0.403
These results suggest that the ubiquitylation of MFHAS1 by praja2 has a vital role in M1 macrophage polarization and promotes the transformation of M2 macrophages to M1 macrophages through both the JNK and p38 pathways.
SIGNOR-278559
P68400
P35638
1
phosphorylation
down-regulates activity
0.344
CHOP transcription factor phosphorylation by casein kinase 2 inhibits transcriptional activation. | The serine to alanine substituted site CHOP mutant was not phosphorylated by CK2, indicating that serines 14–15 and 30–31 of CHOP are the CK2 phosphoacceptor sites
SIGNOR-250850
P23396
P06493
0
phosphorylation
up-regulates
0.362
These results suggest that the phosphorylation of rps3 by cdk1 occurs at thr221 during g2/m phase and, moreover, that this event is important for nuclear accumulation of rps3.
SIGNOR-176131
P24941
P30304
2
phosphorylation
down-regulates
0.83
We show here that dna-responsive checkpoints activate pp2a/b56delta phosphatase complexes to dephosphorylate cdc25 at a site distinct from ser287 (t138), the phosphorylation of which is required for 14-3-3 release.
SIGNOR-150839
Q9H2T7
P15923
2
binding
up-regulates
0.2
Yeast two-hybrid, mammalian two-hybrid, and co-immunoprecipitation analyses demonstrate specific interaction of e12 with ranbp17, a novel member of the importin-beta superfamily;this interaction maps to the crm1 homology region of ranbp17. Ectopic expression of ranbp17 leads to a approximately 3-fold increase in e2a/myod mediated transactivation of an e-box regulated luciferase reporter gene.
SIGNOR-165655
P55040
P0DP25
2
binding
up-regulates activity
0.2
Inhibition of voltage-gated calcium channels by Gem requires GTP and calmodulin binding, but not phosphorylation of serine 261 or 289. Calmodulin binding in the C-terminal extension of Gem is required for maximal inhibition of HVA Ca2+ channels by ectopically expressed Gem, as determined by measurement of electrical activity in primary neurons and by Ca2+-evoked secretion in PC12 cells.
SIGNOR-266342
P50148
Q13639
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-257367
Q9UQE7
Q14582
2
binding
down-regulates activity
0.296
We identified a novel ZIP-containing protein, Mmip1 (Mad member interacting protein 1) that strongly dimerizes with all four Mad members, but not with c-myc. Mmip1 can inhibit DNA binding by Max-Mad heterodimers and, in vivo, can reverse the suppressive e€ects of Mad proteins on c-myc functions.
SIGNOR-241284
P60484
Q8NFU7
0
transcriptional regulation
up-regulates quantity by expression
0.373
We also found that TET1 directly binds to the promoter region of PTEN and activates its transcription through demethylation of CpG islands
SIGNOR-259096
Q9NR20
Q9NR20
2
phosphorylation
up-regulates activity
0.2
Autophosphorylation of DYRK4 in the Activation Loop Is Required for Kinase Activity
SIGNOR-260827
P17252
P35611
1
phosphorylation
up-regulates
0.2
These data demonstrate that adducin is a significant in vivo substrate for pkc or other pma-activated kinases in a variety of cells, and that phosphorylation of adducin occurs in dendritic spines that are believed to respond to external signals by changes in morphology and reorganization of cytoskeletal structures. Ser-726 and ser-713 in the c-terminal marcks-related domains of alpha- and beta-adducin, respectively, were identified as the major phosphorylation sites common for pka and pkc.
SIGNOR-43744
P07203
P42684
0
phosphorylation
up-regulates activity
0.322
GPx1 also functions as a substrate for c-Abl- and Arg-mediated phosphorylation on Tyr-96. The results further show that c-Abl and Arg stimulate GPx activity and that these kinases contribute to GPx-mediated protection of cells against oxidative stress.
SIGNOR-104328
O15111
O15350
1
phosphorylation
up-regulates activity
0.336
IKK-alpha had an ability to stabilize p73 by inhibiting its polyubiquitination, and enhanced p73 mediated transcriptional activation as well as proapoptotic activity.|In addition, IKK-alpha phosphorylated the NH 2 -terminal portion of p73 and a kinase deficient mutant form of IKK-alpha had undetectable effect on p73.
SIGNOR-279697
P84243
P51812
0
phosphorylation
down-regulates activity
0.2
Phosphorylation at ser-11 (h3s10ph) by rps6ka4 and rps6ka5 is important during interphase because it enables the transcription of genes following external stimulation, like mitogens, stress, growth factors or uv irradiation and result in the activation of genes, such as c-fos and c-jun.
SIGNOR-138471
P09471
P30989
2
binding
up-regulates activity
0.274
Altogether, these results reveal for the first time the ability of hNTS1 to directly activate the Gαq-, Gαi1-, GαoA-, and Gα13-mediated signaling pathways
SIGNOR-278061
P01308
Q8WZA2
0
relocalization
up-regulates quantity
0.377
Activation of EPAC2 has recently been shown to increase the density of insulin‐containing granules near the plasma membrane, facilitating insulin secretion from the β cells
SIGNOR-278140
Q9UMS6
Q13418
0
phosphorylation
up-regulates activity
0.503
Fourth, ILK dependent phosphorylation of myopodin is found both in vivo and in vitro.|The ILK dependent activation of myopodin provides a novel link between extracellular matrix-integrin-ILK signaling and myopodin tumor suppression.
SIGNOR-279622
P17252
Q02952
0
relocalization
up-regulates activity
0.459
A-kinase-anchoring protein 250 (AKAP250; gravin) acts as a scaffold that binds protein kinase A (PKA), protein kinase C and protein phosphatases, associating reversibly with the beta(2)-adrenergic receptor.
SIGNOR-271836
Q9H2D6
Q5T447
0
polyubiquitination
down-regulates quantity by destabilization
0.438
Here, we identify a novel Tara-binding protein HECTD3, a putative member of HECT E3 ubiquitin ligases. HECTD3 directly binds Tara in vitro and forms a complex with Tara in vivo. Overexpression of HECTD3 enhances the ubiquitination of Tara in vivo and promotes the turnover of Tara, whereas depletion of HECTD3 by small interfering RNA decreases Tara degradation.
SIGNOR-271770
P42768
Q05209
0
dephosphorylation
down-regulates
0.444
Furthermore, we demonstrate that pstpip serves as a scaffold protein between ptp-pest and wasp and allows ptp-pest to dephosphorylate wasp. This finding suggests a possible mechanism for ptp-pest to directly modulate actin remodeling through the pstpip-wasp interaction.
SIGNOR-121136
Q9NZV8
P21333
2
binding
up-regulates activity
0.353
Filamin may function as a scaffold protein in the postsynaptic density, mediating a direct link between Kv4.2 and the actin cytoskeleton, and that this interaction is essential for the generation of appropriate Kv4.2 current densities.
SIGNOR-269003
Q92794
P04637
1
acetylation
up-regulates
0.67
We show here that moz is an acetyltransferase of p53 at k120 and k382 and colocalizes with p53 in promyelocytic leukemia (pml) nuclear bodies following cellular stress. The moz-pml-p53 interaction enhances moz-mediated acetylation of p53, and this ternary complex enhances p53-dependent p21 expression
SIGNOR-201486
Q07812
Q07812
2
binding
up-regulates activity
0.2
Following bid-induced conformational change, bax oligomerizes and inserts tightly within the outer mitochondrial membrane. The integration of bax in the outer mitochondrial membrane is followed by cytochrome crelease
SIGNOR-73895
O60674
Q92888
1
phosphorylation
up-regulates
0.325
We found that angiotensin ii activates arhgef1 through a previously undescribed mechanism in which jak2 phosphorylates tyr738 of arhgef1
SIGNOR-163557
P05129
P49768
1
phosphorylation
up-regulates activity
0.2
A phosphorylation site at serine residue 346 was identified that is selectively phosphorylated by PKC but not by PKA. This site is localized within a recognition motif for caspases, and phosphorylation strongly inhibits proteolytic processing of PS1 by caspase activity during apoptosis.
SIGNOR-249238
P49768
Q8WW43
2
binding
up-regulates
0.911
Biochemical and genetic studies have recently identified nicastrin, aph-1, and pen-2 as essential cofactors that physically interact with ps1 and are necessary for the gamma-secretase activity.
SIGNOR-97107
Q9UM11
Q96BY2
2
binding
down-regulates quantity by destabilization
0.298
MOAP-1 is an APC/CCdh1 substrate. Here, we identify MOAP-1 as a novel APC/CCdh1 substrate. MOAP-1 is degraded during G1 by APC/CCdh1, and this degradation is inhibited by Trim39 acting on the APC/C.
SIGNOR-272913
O60674
P51692
1
phosphorylation
up-regulates
0.865
Jak2 kinase induces tyrosine phosphorylation, dimerization, nuclear translocation, and dna binding of a concomitantly expressed stat5 protein
SIGNOR-56894
Q92777
P60709
2
binding
up-regulates activity
0.2
Synapsins, a family of neuron-specific phosphoproteins, have been demonstrated to regulate the availability of synaptic vesicles for exocytosis by binding to both synaptic vesicles and the actin cytoskeleton in a phosphorylation-dependent manner.
SIGNOR-269182
P42684
O15304
1
phosphorylation
up-regulates
0.334
Our results also demonstrate that mutation of the siva-1 tyr48 site abrogates the apoptotic function of siva-1 and that apoptosis induced by siva-1 is dependent on expression of kinase-active arg.
SIGNOR-104992
O14641
P49674
0
phosphorylation
up-regulates
0.693
We demonstrated that dvl2 is phosphorylated at s143 and t224 in a manner that requires both non-canonical wnt5a ligand and casein kinase 1 epsilon (ck1_), and that this event is critical to interact with plk1 in early stages of the cell cycle
SIGNOR-197555
P28360
Q07687
2
binding
down-regulates activity
0.399
We demonstrate that dimerization by Msx and Dlx proteins is mediated through their homeodomains and that the residues required for this interaction correspond to those necessary for DNA binding. Unlike most other known examples of homeoprotein interactions, association of Msx and Dlx proteins does not promote cooperative DNA binding; instead, dimerization and DNA binding are mutually exclusive activities. Msx proteins act as transcriptional repressors and Dlx proteins act as activators, while in combination, Msx and Dlx proteins counteract each other's transcriptional activities.
SIGNOR-240929
P19784
Q12972
1
phosphorylation
up-regulates activity
0.473
Phosphorylation of NIPP-1 in a heterodimeric complex with the catalytic subunit of protein phosphatase-1 resulted in an activation of the holoenzyme without a release of NIPP-1. Sequencing and phosphoamino acid analysis of tryptic phosphopeptides enabled us to identify Ser178 and Ser199 as the phosphorylation sites of protein kinase A, whereas Thr161 and Ser204 were phosphorylated by protein kinase CK2.
SIGNOR-251023
P04275
P00451
2
binding
up-regulates activity
0.789
Binding of FVIII to VWF is needed to maintain appropriate plasma levels, as FVIII plasma levels and half-life are remarkably reduced in the absence of VWF
SIGNOR-251967
P43405
Q13422
1
phosphorylation
up-regulates
0.404
Syk phoshorylatesikarosat unique c-terminal serine phosphorylation sites s358 and s361, thereby augmenting its nuclear localization and sequence-specific dna binding activity. Mechanistically, we establish that syk-inducedikarosactivation is essential for its nuclear localization and optimal transcription factor function.
SIGNOR-199100
Q05513
P35611
1
phosphorylation
up-regulates
0.2
These data demonstrate that adducin is a significant in vivo substrate for pkc or other pma-activated kinases in a variety of cells, and that phosphorylation of adducin occurs in dendritic spines that are believed to respond to external signals by changes in morphology and reorganization of cytoskeletal structures. Ser-726 and ser-713 in the c-terminal marcks-related domains of alpha- and beta-adducin, respectively, were identified as the major phosphorylation sites common for pka and pkc.
SIGNOR-43834
P50549
P17612
0
phosphorylation
up-regulates activity
0.292
The camp-dependent protein kinase a (pka) phosphorylates er81 on ser(191)/ser(216)ser(191) and ser(216), were identified, whose mutation to alanine reduces er81 activity upon erk-mapk stimulation.
SIGNOR-92447
O00300
O14788
2
binding
up-regulates
0.942
Receptor activator of nf-kappa b ligand (rankl, also known as odf and opgl), a member of the tumor necrosis factor (tnf) family, triggers osteoclastogenesis by forming a complex with its receptor, rank.
SIGNOR-112539
P99999
Q9BXM7
0
null
down-regulates quantity
0.382
There is a strong cyto-protective role of PINK1 in maintaining mitochondrial homeostasis via different mechanisms. Overexpression of wild-type PINK1 in SH-SY5Y neuroblastoma cells stabilizes respiring mitochondrial networks through various mechanisms that include maintaining mitochondrial membrane potential, reducing basal and neurotoxin-induced ROS, suppression of cytochrome c release, reversal of toxin-induced fission, and suppression of autophagy
SIGNOR-249704
P63000
Q9UQB8
2
binding
up-regulates
0.739
Here we demonstrate that irsp53, a substrate for insulin receptor with unknown function, is the 'missing link' between rac and wave. Activated rac binds to the amino terminus of irsp53, and carboxy-terminal src-homology-3 domain of irsp53 binds to wave to form a trimolecular complex.
SIGNOR-85302
P0DTD1-PRO_0000449619
P15880
2
binding
down-regulates activity
0.2
Nsp1 Locks the 40S in a Conformation Incompatible with mRNA Loading and Disrupts Initiation Factor Binding. Molecular interactions between C-Nsp1 and 40S ribosome components, including uS3, h18, and uS5.
SIGNOR-262508
P45983
P19419
1
phosphorylation
up-regulates activity
0.512
However, both of these stimuli strongly activate two other mapks, jnk1 and jnk2, and stimulate elk-1 transcriptional activity and phosphorylation jnk phosphorylation sites include ser383 and ser389, the major residues whose phosphorylation is responsible for enhancement of elk-1 trascriptional activity.
SIGNOR-236432
Q14457
Q13043
0
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
P11831
O43474
2
binding
down-regulates
0.368
Klf4 antagonizes contractile gene expression through diverse mechanisms including (i) inhibiting the binding of srf-myocd or srf-mrtfs to the carg box by direct association with srf.
SIGNOR-174258
P18206
P23470
0
dephosphorylation
down-regulates activity
0.2
PTPRG activation by the P1-WD peptide affected the tyrosine phosphorylation of several signaling molecules. Data analysis identified 31 molecules whose phosphorylation was modified in a statistically significant manner (Table I). inhibition of ABL1, BMX, BTK, DAB1, ITGB1, JAK2, KDR, KIT, LIMK1, MET, PDGFRB, SHC1, and VCL correlates with tyrosine dephosphorylation. In contrast, SRC inhibition correlates with hyperphosphorylation of the inhibitory Tyr530 residue and with dephosphorylation of the activatory Tyr419. Moreover, CDK2 and CTTN inhibition correlates with a hyperphosphorylation of the inhibitory Tyr15 and Tyr470, respectively. In contrast, a subgroup of 13 proteins, including BLNK, DOK2, ERBB2, GRIN2B, INSR, PDGFRA, PRKCD, PXN, STAT1, STAT2, STAT3, STAT5A, and ZAP70, appears to be activated by PTPRG activity.
SIGNOR-254731
P06239
Q05655
1
phosphorylation
up-regulates activity
0.526
The tyrosine phosphorylation sites of PKC delta in the H(2)O(2)-treated cells were identified as Tyr-311, Tyr-332, and Tyr-512 by mass spectrometric analysis with the use of the precursor-scan method and by immunoblot analysis with the use of phosphorylation site-specific antibodies. Tyr-311 was the predominant modification site among them. In an in vitro study, phosphorylation at this site by Lck, a non-receptor-type tyrosine kinase, enhanced the basal enzymatic activity and elevated its maximal velocity in the presence of diacylglycerol. phosphorylation at Tyr-311 between the regulatory and catalytic domains is a critical step for generation of the active PKC delta in response to H(2)O(2).
SIGNOR-251386
P24588
P48454
1
relocalization
up-regulates activity
0.262
Using a viral-mediated molecular replacement strategy in rat hippocampal slices, we found that AKAP is required for NMDA receptor-dependent long-term depression solely because of its interaction with calcineurin
SIGNOR-261291
P31749
Q9Y2I7
1
phosphorylation
up-regulates
0.491
Here we report that serine318 on the fyve domain-containing ptdins3p 5-kinase (pikfyve) is a novel substrate for pkb, and show that phosphorylation stimulates the ptdins3p 5-kinase activity of the enzyme.
SIGNOR-252474
P03372
P27361
0
phosphorylation
up-regulates
0.704
In several estrogen response element-containing genes, the s118a mutation strongly reduced induction by e(2), and u0126 did not further reduce expression. Here, we show that serines 104 (s104) and 106 (s106) are also phosphorylated by mapk in vitro and upon stimulation of mapk activity in vivo.Phosphorylation at serines 104 and 106 by erk1/2 mapk is important for estrogen receptor-alpha activity
SIGNOR-156864
Q14457
Q9C0C7
2
binding
up-regulates activity
0.786
we show that the BECLIN 1-VPS34 complex is tethered to the cytoskeleton through an interaction between the BECLIN 1-interacting protein AMBRA1 and dynein light chains 1/2.
SIGNOR-168252
P05198
Q9NZJ5
0
phosphorylation
down-regulates activity
0.766
We now demonstrate a major role for Rheb in inhibiting protein synthesis by enhancing the phosphorylation of eIF2α by protein kinase-like ER kinase (PERK).
SIGNOR-260874
O00308
Q01860
1
ubiquitination
down-regulates quantity
0.453
WWP2 promotes degradation of transcription factor OCT4 in human embryonic stem cells|Here, we report that human WWP2, an E3 ubiquitin (Ub)-protein ligase, interacts with OCT4 specifically through its WW domain and enhances Ub modification of OCT4 both in vitro and in vivo.
SIGNOR-268850
P12931
Q9UKA9
0
post transcriptional regulation
down-regulates quantity by repression
0.285
Splicing of the c-src N1 exon in neuronal cells depends in part on an intronic cluster of RNA regulatory elements called the downstream control sequence (DCS). |nPTB binds more stably to the DCS RNA than PTB does but is a weaker repressor of splicing in vitro. nPTB also greatly enhances the binding of two other proteins, hnRNP H and KSRP, to the DCS RNA.
SIGNOR-261267
P06493
P52732
1
phosphorylation
up-regulates activity
0.638
Nek6 phosphorylated Eg5 at several sites in vitro and one of these sites, Ser1033, is phosphorylated in vivo during mitosis. Whereas CDK1 phosphorylates nearly all Eg5 at Thr926 during mitosis, Nek6 phosphorylates approximately 3% of Eg5, primarily at the spindle poles. 
SIGNOR-273887
Q9UNE7
O00257
1
ubiquitination
down-regulates quantity by destabilization
0.2
The phosphorylation of CBX4 at T437 by casein kinase 1α (CK1α) facilitated its ubiquitination at both K178 and K280 and subsequent degradation by CHIP, and this phosphorylation of CBX4 could be reduced by TNFα. 
SIGNOR-277513
Q13075
P55211
2
binding
down-regulates
0.459
These results demonstrate that naip is distinct from the other iaps, both in demonstrating a ligand-dependent caspase-9 interaction and in demonstrating a distinct mechanism of inhibition.
SIGNOR-127193
P17612
Q12972
1
phosphorylation
down-regulates activity
0.484
NIPP-1 is the RNA-binding subunit of a major species of protein phosphatase-1 in the nucleus. The purified recombinant protein was a potent (Ki = 9.9 +/- 0.3 pM) and specific inhibitor of protein phosphatase-1 and was stoichiometrically phosphorylated by protein kinases A and CK2. At physiological ionic strength, phosphorylation by these protein kinases drastically decreased the inhibitory potency of free NIPP-1. Sequencing and phosphoamino acid analysis of tryptic phosphopeptides enabled us to identify Ser178 and Ser199 as the phosphorylation sites of protein kinase A
SIGNOR-250033
P16591
P16591
2
phosphorylation
up-regulates activity
0.2
 Mutation analysis unveiled a tyrosine (Tyr(616)) embedded in the Hsp90 recognition loop, which is required for the kinase activity of Fer. Replacement of this tyrosine by phenylalanine (Y616F) disabled the auto-phosphorylation activity of Fer and abolished its ability to phosphorylate Stat3. 
SIGNOR-276236
Q16620
O43559
1
phosphorylation
up-regulates activity
0.602
The tyrosine phosphoryla tion of FRS2/SNT2 was stimulated dependently on the TrkB activation. to explore the possibility that tyrosine residues 417 and 455 on FRS2/SNT2 function as the binding sites for Shp2, we coexpressed Y417F or Y455F phenylalanine mutants and the Y417/455F double phenylalanine mutant of Myc/Histagged FRS2/SNT2 with TrkB. The active TrkB induced somewhat reduced tyrosine phosphorylation of all of the phenylalanine mutants of FRS2/SNT2 in comparison with tyrosine phosphorylation of the wild type
SIGNOR-250202
Q9H093
O95835
1
phosphorylation
down-regulates
0.307
Phosphorylation at ser-464 by nuak1 and nuak2 leads to decreased protein level and is required to regulate cellular senescence and cellular ploidy
SIGNOR-161796
P06241
P35354
1
phosphorylation
up-regulates activity
0.389
We report that FYN phosphorylates human COX2 on Tyr 446, and while corresponding phospho-mimetic COX2 mutation promotes COX2 activity, the phosphorylation blocking mutation prevents FYN-mediated increase in COX2 activity. FYN and LYN kinases phosphorylate COX2 on two distinct residues in vitro.
SIGNOR-276644
P31749
P45985
1
phosphorylation
down-regulates
0.594
Akt phosphorylated sek1 on serine 78.
SIGNOR-236494
P25440
Q96DB2
2
binding
down-regulates activity
0.339
Ex vivo and cell-based assays revealed that HDAC11 catalytic activity suppresses the BAT transcriptional program, in both the basal state and in response to β-adrenergic receptor signaling, through a mechanism that is dependent on physical association with BRD2, a bromodomain and extraterminal (BET) acetyl-histone-binding protein.
SIGNOR-262058
Q7Z434
Q15366
2
binding
down-regulates quantity by destabilization
0.646
PCBP2 mediates degradation of the adaptor MAVS via the HECT ubiquitin ligase AIP4.
SIGNOR-260360
P35222
P52333
0
phosphorylation
up-regulates activity
0.444
Jak3 phosphorylates Tyr 30, Tyr 64, and Tyr 86 of beta-catenin in intestinal epithelial cells.
SIGNOR-278180
P17612
Q9Y6D6
1
phosphorylation
up-regulates activity
0.2
Within 20 min after addition of 8-Br-cAMP, BIG1 accumulated in nuclei, and this effect was blocked by protein kinase A (PKA) inhibitors H-89 and PKI, suggesting a dependence on PKA-catalyzed phosphorylation. |Mutant BIG1 (S883A) in which Ala replaced Ser-883, a putative PKA phosphorylation site, did not move to the nucleus with cAMP addition, whereas replacement with Asp (S883D) resulted in nuclear accumulation of BIG1 without or with cAMP exposure, consistent with the mechanistic importance of a negative charge at that site
SIGNOR-272146
P12931
P29317
1
phosphorylation
up-regulates activity
0.454
SRC phosphorylates EPHA2 on Tyr594|. It is therefore likely that this phosphorylation site is included in the binding motif of an additional signalling molecule required for cell transformation.
SIGNOR-246104
P31749
Q96GX5
1
phosphorylation
up-regulates activity
0.2
Here, we report that AKT phosphorylates MASTL at residue T299, which plays a critical role in its activation.
SIGNOR-277515
Q9HAZ1
O75030
1
phosphorylation
down-regulates quantity by destabilization
0.2
Mechanistically, wild type CLK4 (WT-CLK4) but not kinase-dead CLK4-K189R mutant phosphorylated MITF at Y360. This modification promoted its interaction with E3 ligase COP1 and its K63-linked ubiquitination at K308/K372, leading to sequestosome 1 recognition and autophagic degradation. 
SIGNOR-274116
Q14790
P06493
0
phosphorylation
down-regulates
0.361
In this study, we demonstrate that procaspase-8 is phosphorylated in mitotic cells by cdk1na interference-mediated silencing of cyclin b1 or treatment with the cdk1 inhibitor ro-3306 enhances the fas-mediated activation and processing of procaspase-8 in mitotic cells/cyclin b1 on ser-387
SIGNOR-168446
P25774
P02818
1
cleavage
down-regulates quantity by destabilization
0.309
This study has been undertaken to compare the degradation of BGP by the cysteine proteinases cathepsins L, B, H, S, and the aspartic proteinase cathepsin D. Cathepsins B, L, H, and S readily cleave BGP at the G7-A8 bond; cathepsin L also cleaves at R43-R44; cathepsin B also cleaves at R44-F45; and cathepsin D cleaves only at A41-Y42.
SIGNOR-256323
Q9UKX2
Q14814
0
transcriptional regulation
up-regulates quantity by expression
0.327
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-238712
P31749
Q9BVI0
1
phosphorylation
down-regulates
0.552
Akt phosphorylates phf20 at ser(291) in vitro and in vivo, which results in its translocation from the nucleus to the cytoplasm and attenuation of phf20 function.
SIGNOR-252529
Q96JK9
Q04721
2
binding
up-regulates
0.756
We report here the cloning and characterization of two new genes, maml2 and maml3, that also function as transcriptional coactivators for notch receptors.
SIGNOR-94097
Q9HCP0
Q5JTC6
2
binding
up-regulates
0.2
Amer1 binds ck1gamma, recruits axin and gsk3beta to the plasma membrane and promotes complex formation between axin and lrp6.
SIGNOR-171889
P37231
P27361
0
relocalization
down-regulates activity
0.398
The genomic activity of ppargamma is modulated, in addition to ligand binding, by phosphorylation of a serine residue by mapks, such as extracellular signal-regulated protein kinases-1/2 (erk-1/2), or by nucleocytoplasmic compartmentalization through the erk activators mapk kinases-1/2 (mek-1/2). These mapks phosphorylate (in humans) ser 84 in the ppargamma1 and ser 114 in ppargamma2 isoform
SIGNOR-179407
Q15303
P56975
2
binding
up-regulates
0.748
The neuregulins (also called heregulins and neu differentiation factors) nrg-1 and nrg-2 bind erbb-3 and erbb-4;and nrg-3 and nrg-4 bind erbb-4.
SIGNOR-26251
P68400
Q99250
1
phosphorylation
up-regulates activity
0.2
We found that the ankyrin-binding motif of Na(v)1.2 that determines channel concentration at the AIS depends on a glutamate residue (E1111), but also on several serine residues (S1112, S1124, and S1126). We showed that phosphorylation of these residues by protein kinase CK2 (CK2) regulates Na(v) channel interaction with ankyrins. | inhibition of CK2 activity reduced sodium channel accumulation at the AIS of neurons. In conclusion, CK2 contributes to sodium channel organization by regulating their interaction with ankyrin G.
SIGNOR-275761
P07900
P31948
2
binding
down-regulates activity
0.934
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 cycle. 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-261411
P49841
P10071
1
phosphorylation
down-regulates quantity by destabilization
0.537
We show that these phosphoserines prime further phosphorylation at adjacent Glycogen Synthase Kinase 3 (GSK3) and Casein Kinase I (CK1) sites. Alteration of the GSK3 or CK1 sites prevents Ci-155 proteolysis and activates Ci in the absence of Hedgehog.
SIGNOR-219231
Q9HCH0
P06493
0
phosphorylation
down-regulates activity
0.2
Inhibiting Cdk1 with purvalanol A in nocodazole arrested cells increased fluorescent intensity of Cep169 at centrosomes relative to the value at the cytosol (2.36 +/- 0.12), while control cells indicated 1.13 +/- 0.03.|Taken together, these results suggest that the Cdk1-dependent phosphorylation of Cep169 mediates the dissociation from centrosomes during mitosis.
SIGNOR-279144
Q16695
Q13185
2
binding
up-regulates activity
0.2
A core characteristic of heterochromatin is its association with heterochromatin protein 1 (HP1) proteins, a highly conserved family of chromosomal proteins that bind to di- and trimethylated H3K9 via a conserved N-terminal domain called the chromodomain (CD) HP1 proteins are a highly conserved family of eukaryotic proteins that bind to methylated histone H3 lysine 9 (H3K9) and are required for heterochromatic gene silencing.
SIGNOR-264495
Q92934
P22694
0
phosphorylation
down-regulates
0.429
Ser-155 is the major phosphoacceptor site for pka on bad, but that pka also phosphorylates ser-112 and ser-136.
SIGNOR-81141
Q9Y577
Q07820
1
polyubiquitination
down-regulates quantity by destabilization
0.444
Here, we identified Trim17 as a novel E3 ubiquitin-ligase for Mcl-1. Indeed, Trim17 co-immunoprecipitated with Mcl-1. Trim17 ubiquitinated Mcl-1 in vitro. Overexpression of Trim17 decreased the protein level of Mcl-1 in a phosphorylation- and proteasome-dependent manner. Finally, knock down of Trim17 expression reduced both ubiquitination and degradation of Mcl-1 in neurons.
SIGNOR-272032
O60879
Q96GD4
0
phosphorylation
up-regulates
0.288
The microtubule binding fh2 domain of mdia3 is phosphorylated by aurora b kinase in vitro, and cells expressing the nonphosphorylatable mdia3 mutant cannot position chromosomes at the metaphase plate
SIGNOR-172803
P46459
Q5S007
0
phosphorylation
up-regulates activity
0.367
LRRK2 phosphorylates full-length NSF at threonine 645 in the ATP binding pocket of D2 domain. Functionally, NSF phosphorylated by LRRK2 displays enhanced ATPase activity and increased rate of SNARE complex disassembling.
SIGNOR-277196
P21554
O43613
2
binding
up-regulates activity
0.388
Another example is the heteromer between CB1 and orexin 1 receptor (OX1R). The CB1 activation potentiated the OX1R signaling (218), suggesting the interaction of these two receptors. Interaction of their surface distribution was also reported. 
SIGNOR-264269
P06493
Q99459
1
phosphorylation
up-regulates activity
0.624
Cdc5-dependent Net1 phosphorylation and Cdc14 release from the nucleolus require prior Cdc5 activation by Cdk1 and active separase to promote Cdc14 activation.|Cdk1 initially phosphorylates Cdc5, mostly at T242 and T238 (T242 phosphorylation is especially relevant based on our results), and phosphorylation activates its kinase activity, which is essential for anaphase progression.
SIGNOR-279597
O00141
P42858
1
phosphorylation
down-regulates
0.372
The serum- and glucocorticoid-induced kinase sgk inhibits mutant huntingtin-induced toxicity by phosphorylating serine 421 of huntingtin.
SIGNOR-121349
P20749
O15111
0
phosphorylation
up-regulates activity
0.429
Here we show that Akt, Erk2, and IKK1/2 phosphorylate Bcl3. Phosphorylation of Ser33 by Akt induces switching of K48 ubiquitination to K63 ubiquitination and thus promotes nuclear localization and stabilization of Bcl3. Phosphorylation by Erk2 and IKK1/2 of Ser114 and Ser446 converts Bcl3 into a transcriptional coregulator by facilitating its recruitment to DNA. 
SIGNOR-277362