IdA
string
IdB
string
labels
int64
mechanism
string
effect
string
score
float64
sentence
string
signor_id
string
P51398
Q05655
0
phosphorylation
up-regulates
0.2
Dap3 is phosphorylated by protein kinase cdelta on thr237. Dap3 was originally identified as a pro-apoptotic protein. The mutation of the phosphorylation site thr237 to alanine reversed the cell death caused by the wild-type dap3
SIGNOR-160488
P17612
P05549
1
phosphorylation
up-regulates
0.2
Recombinant ap-2 was phosphorylated in vitro by protein kinase a (pka) at ser239. Mutation of ser239 to ala abolished in vitro phosphorylation of ap-2 by pka, but not the dna binding activity of ap-2. Cotransfection studies showed that pka stimulated the effect of ap-2 on the apoe promoter, but not that of the s239a mutant.
SIGNOR-64955
Q7L7L0
Q86Y13
0
monoubiquitination
up-regulates activity
0.2
 2A-HUB catalyzes monoubiquitination of H2A at lysine 119, functioning as a combinatoric component of the repression machinery required for specific gene regulation programs. Thus, 2A-HUB mediates a selective repression of a specific set of chemokine genes in macrophages, critically modulating migratory responses to TLR activation. H2A monoubiquitination acts to prevent FACT recruitment at the transcriptional promoter region, blocking RNA polymerase II release at the early stage of elongation.
SIGNOR-271757
Q13315
Q6UWZ7
1
phosphorylation
up-regulates activity
0.2
In this study, we demonstrate that ionizing radiation (IR)-induces ATM-dependent phosphorylation of serine 404 (S404) next to the pSPxF motif. Crystal structures of BRCT/Abraxas show that phosphorylation of S404 is important for extensive interactions through the N-terminal sequence outside the pSPxF motif and leads to formation of a stable dimer.
SIGNOR-255587
P41161
Q14938
0
transcriptional regulation
down-regulates quantity
0.2
By integrating transcriptomic profiling (RNA-seq) of Nfia- and Nfix-deficient GNPs with epigenomic profiling (ChIP-seq against NFIA, NFIB and NFIX, and DNase I hypersensitivity assays), we reveal that these transcription factors share a large set of potential transcriptional targets, suggestive of complementary roles for these NFI family members in promoting neural development
SIGNOR-268886
B0YJ81
P49327
1
chemical activation
up-regulates activity
0.2
Very long-chain fatty acids are produced through a four-step cycle. However, the 3-hydroxyacyl-CoA dehydratase catalyzing the third step in mammals has remained unidentified. Mammals have four candidates, HACD1-4, based on sequence similarities to the recently identified yeast Phs1, although HACD3 and HACD4 share relatively weak similarity. We demonstrate that all four of these human proteins are indeed 3-hydroxyacyl-CoA dehydratases,
SIGNOR-267760
P12931
P08069
1
phosphorylation
up-regulates activity
0.582
The insulin-like growth factor type I (IGF-I) receptor can become tyrosine phosphorylated and enzymatically activated either in response to ligand or because of the activity of the Src tyrosine kinaseWe mapped the sites of IGF-I receptor autophosphorylation to peptides representing three different receptor domains: tyrosines 943 and 950 in the juxtamembrane region; tyrosines 1131, 1135, and 1136 within the kinase domain; and tyrosine 1316 in the carboxyl-terminal domain.
SIGNOR-247193
Q13618
P61586
1
ubiquitination
down-regulates quantity by destabilization
0.396
BACURDs form ubiquitin ligase complexes, which selectively ubiquitinate RhoA, with Cul3. Our studies reveal a previously unknown mechanism for controlling RhoA degradation and regulating RhoA function in various biological contexts, which involves a Cul3/BACURD ubiquitin ligase complex.
SIGNOR-264238
Q16665
P41229
1
transcriptional regulation
up-regulates quantity by expression
0.259
To this end, we confirm that KDM3A, KDM4B, KDM4C, KDM5B, KDM5C, and KDM62 are direct targets of HIF-1a while extent the list of known targets to KDM2A, KDM2B, KDM4D, KDM5A, and KDM6A. The results demonstrated that majority of the KDMs were similarly induced (KDM2A, KDM2B, KDM3A, KDM4B, KDM4C, KDM4D, KDM5A, KDM5B, KDM5C, KDM6B, and KDM7A) or repressed (KDM NO66 and KDM1A) by both HIF-1a and HIF-2a.
SIGNOR-271564
O14965
O43521
1
phosphorylation
down-regulates quantity by destabilization
0.376
 We observed that BimEL is phosphorylated by Aurora A early in mitosis and reversed by PP2A after mitotic exit. Aurora A phosphorylation stimulated binding of BimEL to the F-box protein beta-transducin repeat containing E3 ubiquitin protein ligase and promoted ubiquitination and degradation of BimEL. 
SIGNOR-276248
Q13148
P49841
1
post transcriptional regulation
down-regulates quantity by repression
0.267
Importantly, we found that TDP-43 protein could interact with GSK3β mRNA and regulate the level of GSK3β protein translation. Taken together, our findings suggest that TDP-43 may activate the Wnt/β-catenin pathway by targeting the inhibition of GSK3β protein translation|TDP-43 activates Wnt/β-catenin pathway probably by inhibiting the GSK3β protein translation. A. Interaction between TDP-43 protein and GSK3β mRNA was analyzed using RIP assay.
SIGNOR-262113
P40763
Q15256
0
dephosphorylation
down-regulates activity
0.2
Here, we report identification of signal transducer and activator of transcription 3 (STAT3) as a substrate of PTPRT. Phosphorylation of a tyrosine at amino acid Y705 is essential for the function of STAT3, and PTPRT specifically dephosphorylated STAT3 at this position.
SIGNOR-248719
Q05513
Q13164
1
phosphorylation
down-regulates activity
0.577
Furthermore, PKC\u03b6 phosphorylates ERK5, and mutation analysis showed that the preferred site is S486.|PKCzeta decreases eNOS protein stability via inhibitory phosphorylation of ERK5
SIGNOR-280090
O00712
P54764
1
transcriptional regulation
up-regulates quantity
0.2
For example, within the NFI targetome, we identified 6 collagen genes, 13 genes encoding potassium channel or glutamate receptor subunits and a range of factors related to axon guidance (e.g. Slit1, Robo1, Epha4, Epha5, Epha8)
SIGNOR-268901
P42229
P12931
0
phosphorylation
up-regulates
0.75
Src can thus directly tyrosine-phosphorylate the activation site of stat5 (tyr 694 in stat5a), and src may contribute to epo-induced signal transduction via stat5.
SIGNOR-111078
Q8NB16
Q12866
0
phosphorylation
up-regulates quantity by stabilization
0.2
TAM kinases phosphorylate MLKL to promote necroptosis. MLKL is then recruited to the plasma membrane, where TAM kinases phosphorylate MLKL at Tyr376 (Figure 5G, step 5), promoting its oligomerization and formation of membrane-rupturing pores that result in necrotic cell death (Figure 5G, step 6).
SIGNOR-274118
Q15418
P32004
1
phosphorylation
up-regulates activity
0.506
Western blot analysis demonstrated that the L1 kinase activity from PC12 cells that phosphorylated this site was co-eluted with the S6 kinase, p90(rsk). Moreover, S6 kinase activity and p90(rsk) immunoreactivity co-immunoprecipitate with L1 from brain, and metabolic labeling studies have demonstrated that Ser1152 is phosphorylated in vivo in the developing rat brain. | These data demonstrate that the membrane-proximal 15 amino acids of the cytoplasmic domain of L1 are important for neurite outgrowth on L1, and the interactions it mediates may be regulated by phosphorylation of Ser1152.
SIGNOR-248948
Q13976
Q9Y210
1
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
Q12778
Q16828
0
dephosphorylation
up-regulates activity
0.428
It has been previously demonstrated that MKP-3 dephosphorylates FOXO1 on Ser256 and promotes nuclear translocation of FOXO1 , which subsequentially binds to the promoters of gluconeogenic genes and turns on the gluconeogenic program.|We also reported that MKP-3 can activate FOXO1 by at least dephosphorylating Ser 256, one of the Akt phosphorylation sites xref .
SIGNOR-276983
P36956
P27361
0
phosphorylation
up-regulates activity
0.443
Map kinases erk1/2 phosphorylate sterol regulatory element-binding protein (srebp)-1a at serine 117 in vitro. mutation of serine 117 to alanine abolished erk2-mediated phosphorylation in vitro and the map kinase-related transcriptional activation of srebp-1a by insulin and platelet-derived growth factor in vivo.
SIGNOR-80096
Q96GD4
Q9UKV0
1
phosphorylation
down-regulates
0.262
We define the precise site of aurb-mediated phosphorylation as a conserved serine within the nuclear localization signals of hdac4, hdac5, and hdac9 at ser265, ser278, and ser242, respectivelyduring mitosis, aurb-mediated phosphorylation may localize class iia hdacs to a phosphorylation gradient at the spindle midzone, permitting temporal and spatial regulatory mechanisms altering hdac protein interactions
SIGNOR-198654
Q8WUI4
Q13131
0
phosphorylation
down-regulates
0.273
Another recently described set of transcriptional regulators targeted by ampk and its related family members across a range of eukaryotes are the class iia family of histone deacetylases (hdacs).
SIGNOR-176491
P27361
P04637
1
phosphorylation
up-regulates
0.704
Mutant p53 is constitutively phosphorylated at serine 15 in uv-induced mouse skin tumors: involvement of erk1/2 map kinase.
SIGNOR-100270
P17252
P46940
1
phosphorylation
up-regulates
0.258
Using a mass spectrometry-based assay, we show that egf induces phosphorylation of iqgap1 ser(1443), a residue known to be phosphorylated by pkcthe nonphosphorylatable iqgap1 s1441a/s1443a had no effect. In contrast, the s1441e/s1443d mutation markedly enhanced the ability of iqgap1 to induce neurite outgrowth.
SIGNOR-128714
P67870
Q86VB7
1
phosphorylation
up-regulates activity
0.307
Interaction of CD163 with the regulatory subunit of casein kinase II (CKII) and dependence of CD163 signaling on CKII and protein kinase C. | Inhibition studies using specific kinase inhibitors reveal that both CKII and PKC are involved in the CD163 signaling mechanism resulting in the secretion of proinflammatory cytokines.
SIGNOR-251056
O75385
Q9Y478
0
phosphorylation
up-regulates
0.537
Ampk and ulk1 interact and that the latter is phosphorylated by ampk. This phosphorylation leads to the direct activation of ulk1 by ampk bypassing mtor-inhibition
SIGNOR-173044
Q5TEC6
Q92830
0
acetylation
down-regulates activity
0.2
The HAT module within the SAGA and ADA complexes acetylates histone H3, mainly on residues K9 and K14.
SIGNOR-269599
Q9GZV9
Q8IXL6
0
phosphorylation
down-regulates activity
0.64
Here we show that Fam20C directly phosphorylates FGF23 on Ser(180) | Our above results support, phosphorylation of FGF23 at Ser180 inhibits O-glycosylation and would therefore promote hormone proteolysis and thus inactivation. 
SIGNOR-260925
A6NFN3
Q14938
0
transcriptional regulation
up-regulates quantity
0.2
For example, within the NFI targetome, we identified 6 collagen genes, 13 genes encoding potassium channel or glutamate receptor subunits and a range of factors related to axon guidance (e.g. Slit1, Robo1, Epha4, Epha5, Epha8)
SIGNOR-268913
O95251
Q15139
0
phosphorylation
up-regulates quantity by stabilization
0.2
We show that PKD1 directly interacts and phosphorylates KAT7 at Thr97 and Thr331 in vitro and in vivo. PKD1-mediated phosphorylation of KAT7 enhances its expression levels and stability by reducing its ubiquitination-mediated degradation. 
SIGNOR-277828
P23443
P03372
1
phosphorylation
up-regulates
0.595
Serine 167 is the major phosphorylation site on the human estrogen receptor. Phosphorylation is mediated by casein kinase ii.
SIGNOR-34117
P16885
P51451
0
phosphorylation
up-regulates activity
0.557
Lyn, Syk, Btk, and Blk can also phosphorylate and enhance the activation of phospholipase C gamma 2 (PLCgamma2), which hydrolyzes PI (4,5) P2 to create inositol 3,4,5-trisphosphate (IP3) and diacylglycerol (DAG), stimulating Ca 2+ mobilization and protein kinase C (PKC), respectively.
SIGNOR-280195
O00592
P19544
0
transcriptional regulation
up-regulates quantity by expression
0.409
Binding of WT1 to conserved elements within the Podocalyxin gene promoter results in potent transcriptional activation, and the specific expression pattern of Podocalyxin in the developing kidney mirrors that of WT1 itself.
SIGNOR-252300
O14508
P42229
0
transcriptional regulation
up-regulates quantity by expression
0.668
We have also found SOCS2 and SOCS3 specifically induced in 32D/Flt3-ITD, both of which are STAT3/5 target genes and known negative regulators of receptor signaling
SIGNOR-261547
Q13547
O43524
1
deacetylation
up-regulates activity
0.368
The ability of HDAC1 to cause muscle atrophy required its deacetylase activity and was linked to the induction of several atrophy genes by HDAC1, including atrogin-1, which required deacetylation of FoxO3a
SIGNOR-256486
Q9UD71
P17612
0
phosphorylation
up-regulates activity
0.504
DARPP-32 (dopamine and cyclic AMP-regulated phospho-protein, relative molecular mass 32,000) is converted into an inhibitor of protein phosphatase 1 when it is phosphorylated by protein kinase A (PKA) at threonine 34.‚ 
SIGNOR-250031
P36888
P11309
0
phosphorylation
up-regulates quantity
0.42
Pim-1 Kinase Phosphorylates and Stabilizes 130 kDa FLT3 and Promotes Aberrant STAT5 Signaling in Acute Myeloid Leukemia with FLT3 Internal Tandem Duplication[...]Pim-1 inhibition also decreased phosphorylation of FLT3 at tyrosine 591 and of STAT5, and expression of Pim-1 itself, consistent with inhibition of the FLT3-ITD-STAT5 signaling pathway.
SIGNOR-259927
P28482
Q14247
1
phosphorylation
up-regulates
0.467
Cortactin is regulated by multiple phosphorylation events, including phosphorylation of s405 and s418 by extracellular regulated kinases (erk)1/2. Erk1/2 phosphorylation of cortactin has emerged as an important positive regulatory modification, enabling cortactin to bind and activate the arp2/3 regulator neuronal wiskott-aldrich syndrome protein (n-wasp), promoting actin polymerization and enhancing tumor cell movement.
SIGNOR-165200
P78337
P18031
0
dephosphorylation
down-regulates quantity by destabilization
0.354
PTP1B dephosphorylates PITX-1 at Y160, 175 and Y179.|Through directly dephosphorylating PITX-1 at Y160, Y175 and Y179, PTP1B promoted proteasomal degradation of PITX-1, thus leaded in downregulating p120RasGAP and CRC cell survival.
SIGNOR-276973
Q9UBS5
P28482
0
phosphorylation
down-regulates quantity by destabilization
0.2
We found that, in addition to CaMKIIβ, also ERK1/2 is involved in the degradation pathway of GABAB receptors under physiological and ischemic conditions. In contrast to our previous view, CaMKIIβ does not appear to directly phosphorylate S867. Instead, the data support a mechanism in which CaMKIIβ activates ERK1/2, which then phosphorylates S867 and T872 in GABAB1.
SIGNOR-277857
Q9P286
Q92934
1
phosphorylation
down-regulates activity
0.2
P21-Activated kinase 5 (Pak5) localizes to mitochondria and inhibits apoptosis by phosphorylating BAD. Pak5 phosphorylates BAD Ser-112
SIGNOR-250247
P42226
P17706
0
dephosphorylation
down-regulates activity
0.679
These results identify TCPTP as a physiological regulator of STAT6 phosphorylation and suggest that specific increases in TCPTP expression in ABC-like DLBCLs may contribute to the different biological characteristics of these tumors
SIGNOR-235192
Q9Y2J4
P11362
0
phosphorylation
up-regulates activity
0.2
These data support an idea that Amotl2 Tyr-103 can be phosphorylated by FGF receptor tyrosine kinase activity. We then determined whether Amotl2 Tyr-103 is required for its interaction with c-Src. |Amotl2 promotes MAPK/ERK activation via c-Src, which is dependent on phosphorylation of tyrosine residue at position 103 but independent of the C-terminal PDZ-binding domain.
SIGNOR-271869
P17676
Q99988
1
transcriptional regulation
up-regulates quantity by expression
0.276
Promoter analysis and chromatin immunoprecipitation analysis revealed that CEBPB could contribute to K7174-mediated transcriptional activation of GDF15.
SIGNOR-254050
P78352
P12931
0
phosphorylation
up-regulates
0.565
These results indicate that psd-95 phosphorylation by src facilitates the integration of pyk2 to psd-95 signal complex, the activation of pyk2/src, as well as the subsequent tyrosine phosphorylation of nr2a, which ultimately results in the upregulation of nmda receptor function and synaptic transmission.
SIGNOR-205120
P51668
Q6PJ69
1
ubiquitination
up-regulates activity
0.298
Ubiquitination assays demonstrate that TRIM65 is an ubiquitin E3 ligase for TNRC6 proteins. The combination of overexpression and knockdown studies establishes that TRIM65 relieves miRNA-driven suppression of mRNA expression through ubiquitination and subsequent degradation of TNRC6. TRIM65 regulates ubiquitination and stability of TNRC6. (A) In vitro ubiquitination of TNRC6A by TRIM65 plus E1, E2 (UBCH5A, also known as UBE2D1), ATP, and HA-Ub. GST-tagged TRIM65 and mutant TRIM65 were purified from bacteria. TRIM65 regulates ubiquitination and stability of TNRC6. (A) In vitro ubiquitination of TNRC6A by TRIM65 plus E1, E2 (UBCH5A, also known as UBE2D1), ATP, and HA-Ub. GST-tagged TRIM65 and mutant TRIM65 were purified from bacteria.
SIGNOR-272175
Q16665
Q9P0U3
0
desumoylation
up-regulates
0.325
Sumo-specific protease 1 is essential for stabilization of hif1alpha during hypoxia / our results support a model in which sumoylated hif1_ is unstable but can be stabilized when sumo is removed by senp1
SIGNOR-158891
P49137
Q13151
1
phosphorylation
up-regulates activity
0.531
MAPKAP-K2 phosphorylated hnRNP A0 at Ser84 in vitro and this residue became phosphorylated in LPS-stimulated cells. The simplest explanation for these findings is that the phosphorylation of hnRNP A0 at Ser84 by MAPKAP-K2 enhances binding to the AREs of these mRNAs or allows hnRNP A0 to displace another protein(s) from the AREs.
SIGNOR-262951
Q99835
P25098
0
phosphorylation
up-regulates
0.2
We find that two molecules interact with mammalian smo in an activation-dependent manner: g protein-coupled receptor kinase 2 (grk2) leads to phosphorylation of smo, and beta-arrestin 2 fused to green fluorescent protein interacts with smo. Ck1a, grk2, and another still-unidentified protein kinase phosphorylate the c-tail of mammalian smo in the presence of hh proteins
SIGNOR-174539
P49591
P18848
0
transcriptional regulation
up-regulates quantity by expression
0.2
QRICH1 promotes the expression of translation-related genes. our combined ChIP-seq and RNA-seq analyses identified that QRICH1 and ATF4 were enriched at the promoters of these specific tRNA synthetases, and that ER stress positively regulated their transcription (Fig. 4I). Together, these findings suggest that QRICH1 and ATF4 modulate tRNA metabolic processes to promote secreted protein synthesis during ER stress.
SIGNOR-269424
P49768
P05129
0
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
P09619
P18031
0
dephosphorylation
down-regulates
0.691
Ptp1b blocked pdgf-induced tyr716 and tyr751 phosphorylation of the pdgfr.
SIGNOR-179064
P15924
P17612
0
phosphorylation
down-regulates activity
0.328
HeLa cells treated with forskolin indicated that stimulation of protein kinase A in transfected cells could decrease the interaction of DP.AN.SerC23 with keratin IF networks. phosphorylation of Ser-C23 could destabilize interactions that occur either directly through this 20 residue sequence or that are dependent on its correct conformation
SIGNOR-250353
P45984
P16104
1
phosphorylation
up-regulates
0.2
H2ax interacts with numerous proteins required for dna damage signaling and repair when phosphorylated on ser-140. Phosphorylation of ser-140 (h2ax139ph) in response to ionizing radiation is mediated by both atm and prkdc. Our data showed that h2ax is phosphorylated by uva-activated jnk.
SIGNOR-160210
P29474
P23467
0
dephosphorylation
down-regulates activity
0.267
VE-PTP interacts with eNOS and dephosphorylates Tyr81
SIGNOR-277521
Q14765
O60674
0
phosphorylation
up-regulates
0.676
Janus family tyrosine kinases jak2 and tyk2, which in turn phosphorylate stat4 on tyrosine 693. The p38 mitogen-activated protein kinase (mapk) signaling pathway is also activated in response to il-12, followed by phosphorylation of stat4 on serine 721, which is required for stat4 full transcriptional activity
SIGNOR-142736
P38936
P04637
0
transcriptional regulation
up-regulates quantity by expression
0.876
The ability of p53 to activate transcription from specific sequences suggests that genes induced by p53 may mediate its biological role as a tumor suppressor. Using a subtractive hybridization approach, we identified a gene, named WAF1, whose induction was associated with wild-type but not mutant p53 gene expression in a human brain tumor cell line. The WAF1 gene was localized to chromosome 6p21.2, and its sequence, structure, and activation by p53 was conserved in rodents.
SIGNOR-37145
Q9UHD2
O00571
1
phosphorylation
up-regulates activity
0.721
Coexpression of TBK1 strongly increased the activity of DDX3X.|This suggests that DDX3X is rather specifically phosphorylated by TBK1 and IKK-i.
SIGNOR-278997
Q9UHD2
P60891
1
phosphorylation
up-regulates activity
0.2
Here, we show that ionizing radiation results in TBK1-mediated phosphorylation of phosphoribosyl pyrophosphate synthetase (PRPS)1/2 at T228, thereby enhancing PRPS1/2 catalytic activity and promoting deoxyribonucleotide synthesis. 
SIGNOR-277316
P08047
Q9NVW2
1
transcriptional regulation
up-regulates quantity by expression
0.2
Thus, RLIM is a novel target of p53, and p53 exerts its inhibitory effect on RLIM expression by interfering with Sp1-mediated transcriptional activation on RLIM.|Although p53 does not directly bind to the RLIM promoter, it physically interacts with and prevents the binding of Sp1 to the RLIM promoter.
SIGNOR-268980
Q9NRC8
Q16531
1
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
P20839
P01106
0
transcriptional regulation
up-regulates quantity by expression
0.243
Here, we report that the majority of genes in human purine and pyrimidine biosynthesis pathway were induced and directly bound by c-Myc in the P493-6 human Burkitt's lymphoma model cell line. The mRNA levels of IMPDH1 and IMPDH2, the rate-limiting enzyme in purine de novo synthesis, increased with MYC induction both in vitro and in vivo.
SIGNOR-267378
P48729
Q00535
1
phosphorylation
up-regulates activity
0.297
We also show that casein kinase I, but not casein kinase II, can phosphorylate and activate cdk5 in vitro. Ser(159) in cdk5 is homologous to the regulatory Thr(160) in cdk2.
SIGNOR-275966
Q14653
P49841
0
phosphorylation
up-regulates activity
0.346
Invitro, both GSK3alpha and GSK3beta phosphorylate IRF3 at the linker region.
SIGNOR-279182
Q00987
Q8N6T7
1
ubiquitination
down-regulates quantity
0.415
These results suggest that MDM2 degrades SIRT6 in a proteasome dependent manner.|USP10 has been shown to deubiquitinate and stabilize p53, a well-known substrate of MDM2, suggesting a mechanism whereby SIRT6 is ubiquitinated and destabilized by MDM2, which could be reversed by USP10 mediated deubiquitination.
SIGNOR-278702
P10636
Q9UM73
0
phosphorylation
up-regulates quantity
0.2
All these results point to the critical role played by ALK in the phosphorylation and accumulation of tau and in the associated memory impairment seen in 3xTg-AD mice.
SIGNOR-279318
O15391
P04637
1
transcriptional regulation
up-regulates quantity by expression
0.572
YY2 activated the p53 promoter. However, in contrast to YY1, which represses the activity of c-Fos, YY2 increased the activity of the c-Fos promoter.
SIGNOR-266213
P17252
P29350
1
phosphorylation
down-regulates
0.364
Protein kinase calpha therefore critically and negatively regulates shp-1 function, forming part of a mechanism to retain shp-1 in a basal active state through interaction with its sh2 domains, and phosphorylating its c-terminal ser591 upon cellular activation
SIGNOR-126876
P68400
P20810
1
phosphorylation
up-regulates activity
0.2
 We also showed that casein kinase 2, a pro-survival kinase overexpressed in many cancer types, phosphorylated calpastatin at Ser-633. Our results indicate that calpastatin phosphorylation promotes radiation resistance in GBM cells by increasing the activity of calpain proteases, which are known to promote survival and invasion in cancer.
SIGNOR-277388
Q15208
Q2M2I8
1
phosphorylation
up-regulates activity
0.27
We identified 5 potential NDR1 substrates in the mouse brain and chose two for functional validation. We show that one NDR1 substrate is another kinase, AP-2 associated kinase-1 (AAK1) which regulates dendritic branching as a result of NDR1 phosphorylation. Another substrate is the Rab8 guanine nucleotide exchange factor (GEF) Rabin8 (a Sec2p homolog) which we find is involved in spine synapse formation. AAK1 phosphorylation regulates dendrite branching and length
SIGNOR-263034
Q8TAP9
P06493
0
phosphorylation
up-regulates
0.341
Ttdn1 is phosphorylated by cdk1 in vitro and in vivo. Ttdn1 is phosphorylated at multiple residues, including ser93 and ser104. Mutation of thr120 of ttdn1 abolishes its interaction with plk1, suggesting phosphorylation of thr120 in the consensus plk1-binding motif is required for its interaction with plk1
SIGNOR-153308
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
Q9NYV4
Q13177
1
phosphorylation
up-regulates activity
0.2
Mechanistically, CDK12 directly binds to and phosphorylates PAK2 at T134/T169 to activate MAPK signaling pathway
SIGNOR-273110
P62753
O96006
0
transcriptional regulation
up-regulates quantity by expression
0.2
HDRE-like sequences act as positive regulatory elements for RP gene promoter activities in vivo. | Cotransfection of a plasmid expressing hDREF increased luciferase expression directed by each RP gene promoter more than 30% compared with the values obtained without the hDREF-expressing plasmid.
SIGNOR-266082
Q00535
O60229
1
phosphorylation
up-regulates activity
0.4
We then demonstrated that Cdk5 phosphorylates Kalirin 7 on Thr 1590 , increasing its GEF activity slightly and changing its solubility properties.
SIGNOR-279603
P26678
P31749
0
phosphorylation
down-regulates activity
0.289
Akt interacts with and phosphorylates PLN at Thr(17), the Ca(2+)-calmodulin-dependent kinase IIdelta site, whereas silencing Akt signaling, through the knock-out of phosphatidylinositol-dependent kinase-1, resulted in reduced phosphorylation of PLN at Thr(17).
SIGNOR-252578
Q06609
P42229
0
transcriptional regulation
up-regulates quantity by expression
0.263
FLT3-ITD-TKD dual mutants induce hyperactivation of STAT5 and up-regulation of its downstream targets Bcl-x(L) and RAD51 in Ba/F3 cells
SIGNOR-261552
P35637
Q15424
0
relocalization
up-regulates activity
0.363
SAFB1 as well as Matrin3 to regulate splicing and ligand-mediated transcription| In addition, depletion of SAFB1 reduced FUS's localization to chromatin-bound fraction and splicing activity, suggesting SAFB1 could tether FUS to chromatin compartment thorough N-terminal DNA-binding motif.
SIGNOR-262821
O15297
P46527
1
dephosphorylation
down-regulates activity
0.259
Increased expression of wildtype WIP1 reduces stability of p27 Kip1 while increased expression of similar amounts of phosphatase-dead WIP1 has no effect on p27 Kip1 protein stability.|We demonstrate that wildtype, but not phosphatase-dead WIP1, efficiently dephosphorylates p27 Kip1 Ser140 both in vitro and in cells and that this dephosphorylation is sensitive to the WIP1 specific inhibitor GSK 2830371.
SIGNOR-277109
P35222
P04629
0
phosphorylation
up-regulates activity
0.415
EGFR and TRKA effect on WNT3a mediated Topflash induction was abolished by U0126 or expression of dominant negative LRP6-5A mutant (XREF_FIG), demonstrating that both EGFR and TRKA signal via ERK and LRP6 pathway to upregulate WNT and beta-catenin signaling.|FGFR2, FGFR3, EGFR and TRKA Phosphorylate \u03b2-catenin at Tyr142.
SIGNOR-279240
P24941
Q96MT8
0
relocalization
up-regulates activity
0.372
Primary microcephaly (MCPH) associated proteins CDK5RAP2, CEP152, WDR62 and CEP63 colocalize at the centrosome. We found that they interact to promote centriole duplication and form a hierarchy in which each is required to localize another to the centrosome, with CDK5RAP2 at the apex, and CEP152, WDR62 and CEP63 at sequentially lower positions. MCPH proteins interact with distinct centriolar satellite proteins; CDK5RAP2 interacts with SPAG5 and CEP72, CEP152 with CEP131, WDR62 with MOONRAKER, and CEP63 with CEP90 and CCDC14. These satellite proteins localize their cognate MCPH interactors to centrosomes and also promote centriole duplication. Consistent with a role for satellites in microcephaly, homozygous mutations in one satellite gene, CEP90, may cause MCPH. The satellite proteins, with the exception of CCDC14, and MCPH proteins promote centriole duplication by recruiting CDK2 to the centrosome.
SIGNOR-271725
P28482
P14598
1
phosphorylation
up-regulates
0.45
Erk1/2 are the kinases involved in p47phox_ phosphorylation on ser345 in gm-csfprimed human neutrophils._ Phosphorylation of ser345 is required for the priming of nadph oxidase activity in neutrophil-like cells
SIGNOR-147170
Q86YJ5
P01880
1
ubiquitination
down-regulates quantity by destabilization
0.2
MARCH9, a member of the RING-CH family of transmembrane E3 ubiquitin ligases, down-regulates CD4, major histocompatibility complex-I (MHC), and ICAM-1 in lymphoid cells. To identify novel MARCH9 substrates, we used high throughput flow cytometry and quantitative mass spectrometry by stable isotope labeling by amino acids in cell culture (SILAC) to determine the differential expression of plasma membrane proteins in a MARCH9-expressing B cell line. This combined approach identified 13 potential new MARCH9 targets. 
SIGNOR-271542
Q13315
P15336
1
phosphorylation
up-regulates
0.566
Here, we demonstrate that the protein kinase atm phosphorylates atf2 on serines 490 and 498 following ionizing radiation (ir). dose- and time-dependent phosphorylation of atf2 by atm that results in its rapid colocalization with gamma-h2ax and mrn components into ir-induced foci (irif)
SIGNOR-137619
P53350
P35869
1
phosphorylation
down-regulates activity
0.251
In this study, we demonstrate that PLK1 phosphorylates AHR at S489 in LUAD, leading to epithelial-mesenchymal transition (EMT) and metastatic events. 
SIGNOR-277885
Q13315
Q7L7X3
1
phosphorylation
up-regulates
0.42
The dna damage kinase ataxia telangiectasia mutated (atm) phosphorylates taos in vitro;radiation induces phosphorylation of tao on a consensus site for phosphorylation by the atmprotein kinase in cells.
SIGNOR-154171
Q8IUQ4
Q6IE81
1
polyubiquitination
down-regulates quantity by destabilization
0.291
Siah-1 decreases Jade-1 abundance and enhances Jade-1 ubiquitination
SIGNOR-272915
P17612
O60825
1
phosphorylation
up-regulates activity
0.444
PFK-2 that was phosphorylated on Ser466, but not Ser483, by PKA did not bind to 14-3-3s‚ 
SIGNOR-250025
P11387
P06493
0
phosphorylation
up-regulates activity
0.349
In vitro kinase assays demonstrated that Ser(10) can be phosphorylated by casein kinase II, Ser(21) can be phosphorylated by protein kinase Calpha, and Ser(112) and Ser(394) can be phosphorylated by Cdk1.Collectively these results indicate that topo I is phosphorylated during mitosis at multiple sites, one of which enhances DNA relaxation activity in vitro and interaction with DNA in cells.
SIGNOR-276157
P42345
Q9H1K1
1
phosphorylation
up-regulates
0.2
Here, we demonstrate that mtorc1 associates with iscu and phosphorylates iscu at serine 14. This phosphorylation stabilized iscu protein.
SIGNOR-201595
P05549
P02511
1
transcriptional regulation
up-regulates quantity by expression
0.259
Aberrant expression of CRYAB has been shown to be associated with several neurological diseases and malignant neoplasms. To identify transcriptional regulators of CRYAB expression, we examined its promoter for binding sites of transcription factors and identified four potential AP-2 binding sites in addition to a p53 binding site reported previously|Taken together, our results indicate that AP-2_ up-regulates the transcription of the CRYAB gene through stabilizing p53
SIGNOR-253636
P02461
P03956
0
cleavage
down-regulates quantity by destabilization
0.35
In vitro, MMP1 initiates degradation of native fibrillar collagens, crucial components of vertebrate extracellular matrix (ECM), by cleaving the peptide bond between Gly775–Ile776 or Gly775–Lys776 in native type I, II or III collagen molecules3,4. 
SIGNOR-272339
P55085
P08246
0
cleavage
down-regulates activity
0.395
PAR1E and PAR2E (10 microM) were incubated in the presence of the different proteases | The enzymes were used at the following concentrations: 0.5 unit/mL thrombin, 2.5 nM trypsin, 20 nM plasmin, 20 nM cathepsin G, 20 nM elastase, 20 nM proteinase 3, and 2 units/mL calpain I and II|Protease-activated receptors (PARs) mediate cell activation after proteolytic cleavage of their extracellular amino terminus.|Mass spectrometry studies of PAR2E predicted activation of PAR2 by trypsin through cleavage at the Arg36-Ser37 site, no effect of thrombin, and inactivation of the receptor by plasmin, calpain and leukocyte elastase, cathepsin G, and proteinase 3
SIGNOR-263588
P31749
O15519
1
phosphorylation
down-regulates quantity
0.466
TNFalpha enhanced FLIP(L) serine phosphorylation, which was increased by activated Akt-1. Serine 273, a putative Akt-1 phosphorylation site in FLIP(L), was critical for the activation-induced reduction of FLIP(L). Thus, these observations document a novel mechanism where by TNFalpha facilitates the reduction of FLIP(L) protein, which is dependent on the phosphatidylinositol 3-kinase/Akt signaling.
SIGNOR-252548
Q8N1E6
P01106
1
ubiquitination
down-regulates quantity by destabilization
0.349
 In this study, we demonstrate that the deubiquitinase USP13 stabilizes c-Myc by antagonizing FBXL14-mediated ubiquitination to maintain GSC self-renewal and tumorigenic potential. USP13 was preferentially expressed in GSCs, and its depletion potently inhibited GSC proliferation and tumor growth by promoting c-Myc ubiquitination and degradation.
SIGNOR-274125
Q09472
P28482
0
phosphorylation
up-regulates
0.466
Erk2-mediated c-terminal serine phosphorylation of p300 (ser-2279, ser-2315, and ser-2366) is vital to the regulation of epidermal growth factor-induced keratin 16 gene expression.
SIGNOR-156891
Q15746
Q9C009
0
transcriptional regulation
down-regulates quantity by repression
0.2
Results from this analysis revealed that the inhibitory activity of HFH-1 was contained within the forkhead DNA-binding domain. Truncated HFH-1 proteins that lack the entire forkhead domain were unable to repress telokin promoter activity, in contrast expression of the forkhead domain alone was able to repress promoter activity
SIGNOR-261609
P17612
Q92837
1
phosphorylation
down-regulates
0.2
Phosphorylation of ser188 by pka inhibited the ability of frat1 to activate beta-catenin-dependent transcription.
SIGNOR-149689
Q13526
Q16584
0
phosphorylation
up-regulates
0.263
Here we demonstrate that mixed-lineage kinase 3 (mlk3), a map3k family member, phosphorylates pin1 on a ser138 site to increase its catalytic activity and nuclear translocation.
SIGNOR-205586
Q13315
O94916
1
phosphorylation
up-regulates
0.271
Tonebp/orebp contains atm consensus phosphorylation sites at ser-1197, ser-1247, and ser-1367. In conclusion, signaling via atm is necessary for full activation of tonebp/orebp
SIGNOR-125077