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14
P07196
P27348
2
binding
down-regulates activity
0.299
These results suggest the important role of 14-3-3 in the dynamic regulation of NF-L assembly, and in the capacity to prevent the formation of NF-L aggregates. all seven isoforms specifically interacted with NF-L, but not NF-M or NF-H. specific interaction of 14-3-3 proteins with phosphorylated NF-L subunits also indicated the role of 14-3-3 and NF-L phosphorylation in the disassembly of neurofilaments. What is more, binding of 14-3-3 to phosphorylated NF-L subunits may prevent the dephosphorylation of these subunits by phosphatases, maintaining the hyperphosphorylation state of the subunits, which facilitates the disassembly of neurofilaments.
SIGNOR-252399
P28482
P11362
1
phosphorylation
down-regulates
0.309
Erk-mediated phosphorylation of fibroblast growth factor receptor 1 on ser777 inhibits signaling
SIGNOR-200880
Q9GZV5
Q15562
2
binding
up-regulates
0.808
When dephosphorylated, yap/taz enter nuclei and induce gene transcription by interacting with transcription factors tead14.
SIGNOR-201382
P28336
P50148
2
binding
up-regulates
0.472
G-proteins of the q family have been implicated as mediators of bombesin receptors action. This suggests that nmb-r couples to g?q, and that grp-r and nmb-r show distinct g-protein coupling preferences in the xenopus oocyte.
SIGNOR-35864
P25398
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-266084
Q00535
Q9GZM8
1
phosphorylation
up-regulates activity
0.772
Three specific phosphorylation sites (Ser198, Thr219 and Ser231) and two weak phosphorylation sites (Ser242 and Thr245) for CDK5/p35 are located in this region of NUDEL | Each single or double mutant compromised,and the triple mutant completely eliminated, interaction with 14-3-3ε. | 14-3-3ε sustains NUDEL phosphorylation and protects it from phosphatase.e dynein motor function.
SIGNOR-250676
P60953
P52306
2
binding
up-regulates
0.288
Smggds has been previously shown to activate a wide variety of small gtpases, including the ras family members rap1a, rap1b, and k-ras, as well as the rho family members cdc42, rac1, rac2, rhoa, and rhob
SIGNOR-171412
Q96J02
O95835
1
ubiquitination
down-regulates quantity by destabilization
0.516
Furthermore, ITCH mediated degradation of LATS1 was associated with enhanced cell growth, induction of epithelial-mesenchymal transition, and increased tumorigenicity.|Ubiquitination of LATS1 catalyzed by ITCH stimulated the proteasomal degradation of LATS1.
SIGNOR-278816
A1X283
Q86UR1
2
binding
up-regulates activity
0.347
Tks4 and Tks5 bind NoxA1 through their SH3 domains in a Rac-independent manner|NoxO1 is required for full Nox1 and Nox3 oxidase activity at least partially because of its role in the plasma membrane recruitment of the NoxA1 activator protein|Tks4 and Tks5 support Nox1- and Nox3-dependent ROS generation
SIGNOR-264707
Q9UBP6
P31749
0
phosphorylation
down-regulates
0.335
The trna methylase mettl1 is phosphorylated and inactivated by pkb and rsk in vitro and in cells
SIGNOR-24994
P19105
Q13464
0
phosphorylation
up-regulates activity
0.561
Phosphorylation of myosin II regulatory light chain (MRLC) is important for cell motility and cytokinesis in nonmuscle cells. Although the regulation of monophosphorylated MRLC at serine 19 throughout the cell cycle was examined in detail, MRLC diphosphorylation at both threonine 18 and serine 19 is still unclear. Here we found that Rho-kinase has an activity for MRLC diphosphorylation in nonmuscle cells using sequential column chromatographies.
SIGNOR-263074
P06493
P12830
1
phosphorylation
up-regulates activity
0.368
We show that adequate accumulation of Cin8 and Kip1 requires inactivation of the anaphase promoting complex-activator Cdh1 through sequential phosphorylation by Cdk1 and polo kinase.|We show that adequate accumulation of Cin8 and Kip1 requires inactivation of the anaphase-promoting complex-activator Cdh1 through sequential phosphorylation by Cdk1 and polo kinase.
SIGNOR-280204
P58400
Q14118
2
binding
up-regulates activity
0.426
The DGC is potentially recruited to the postsynaptic membrane though a direct neurexin–dystroglycan interaction and an indirect interaction with NL2 via the synaptic scaffolding protein S-SCAM.
SIGNOR-265459
Q15437
Q9NR31
2
binding
up-regulates quantity
0.677
Biogenesis of COPII vesicles is initiated by the activation of the small guanosine triphosphate (GTP)-binding protein secretion-associated Ras-related protein 1 (Sar1) at specialized subdomains of the ER, called ER exit sites (ERES) or transitional ER (tER). Membrane-bound Sar1 then recruits the inner COPII coat subcomplex, the Sec23/24 heterodimer.
SIGNOR-265298
P01100
P11511
1
transcriptional regulation
up-regulates quantity by expression
0.346
We found that both SF1 and LRH1 can transcriptionally cooperate with the AP-1 family members c-JUN and c-FOS, known to be associated with enhanced proliferation of endometrial carcinoma cells, to further enhance activation of the STAR, HSD3B2, and CYP19A1 PII promoters.
SIGNOR-254879
Q04206
Q9UHD2
0
phosphorylation
up-regulates
0.614
Chromatographic fractionation of cell extracts allowed the identification of two distinct enzymatic activities phosphorylating ser-536. Peak 1 represents an unknown kinase, whereas peak 2 contained ikkalpha, ikkbeta, ikkepsilon, and tbk1. collectively, our results provide evidence for at least five kinases that converge on ser-536 of p65 and a novel function for this phosphorylation site in the recruitment of components of the basal transcriptional machinery to the interleukin-8 promoter.
SIGNOR-129951
P08047
P24821
1
transcriptional regulation
up-regulates quantity by expression
0.2
Sp1 and Ets1 are potent transactivators of the TN-C promoter.
SIGNOR-261600
Q03135
Q8ND25
0
polyubiquitination
down-regulates quantity by destabilization
0.364
The ubiquitin ligase ZNRF1 promotes caveolin-1 ubiquitination and degradation to modulate inflammation. ZNRF1 mediates CAV1 polyubiquitination at lysine 39 and promote CAV1 degradation to modulate TLR4-mediated immune response.
SIGNOR-272327
Q16678
P35869
0
transcriptional regulation
up-regulates quantity by expression
0.489
The formation of the AHR/ARNT dimerization complex converts the AHR into a high affinity DNA-binding form that recognizes specific DNA recognition sites termed DREs. In this manner, the agonist activated AHR upregulates a battery of target genes, including those involved in the metabolism of chemical carcinogens, such as CYP1A1 and CYP1B1 .
SIGNOR-253642
Q9UKV5
P04035
1
ubiquitination
down-regulates quantity by destabilization
0.492
Gp78 mediates the sterol regulated ubiquitination of HMGCR.
SIGNOR-278622
P30679
P30556
2
binding
up-regulates activity
0.499
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-257223
Q9UQF2
Q9BY84
2
binding
up-regulates
0.44
Here we report that jip-1 also binds the dual-specificity phosphatases mkp7 and m3/6 via a region independent of its jnk binding domain. when mkp7 is bound to jip-1 it reduces jnk activation leading to reduced phosphorylation of the jnk target c-jun
SIGNOR-97173
Q07352
P31749
0
phosphorylation
down-regulates
0.657
Here we report that protein kinase b (pkb/akt) stabilizes are transcripts by phosphorylating brf1 at serine 92 (s92). Recombinant brf1 promoted in vitro decay of are-containing mrna (are-mrna), yet phosphorylation by pkb impaired this activity.
SIGNOR-130376
P17252
Q05586
1
phosphorylation
up-regulates activity
0.417
Serines 890 and 896 of the NMDA receptor subunit NR1 are differentially phosphorylated by protein kinase C isoforms. The results show that PKC alpha phosphorylates preferentially S896 and PKC gamma preferentially S890.
SIGNOR-263177
O43307
Q9NQX3
2
binding
up-regulates activity
0.604
Gephyrin is believed to act as a scaffold at inhibitory synapses, in a manner analogous to that of the prototypic excitatory synaptic scaffold, PSD-95. The best-known function of gephyrin is to bring the inhibitory synaptic receptors and to stabilize them at the inhibitory synapses. gephyrin interacts with NL-2 and collybistin, suggesting that it may be critical for the maturation or maintenance of inhibitory synapses.
SIGNOR-264973
P25490
O15379
0
deacetylation
down-regulates activity
0.6
Previous studies have established that YY1 interacts with histone acetyltransferases p300 and CREB-binding protein (CBP) and histone deacetylase 1 (HDAC1), HDAC2, and HDAC3. Here, we present evidence that the activity of YY1 is regulated through acetylation by p300 and PCAF and through deacetylation by HDACs. YY1 was acetylated in two regions: both p300 and PCAF acetylated the central glycine-lysine-rich domain of residues 170 to 200, and PCAF also acetylated YY1 at the C-terminal DNA-binding zinc finger domain. Acetylation of the central region was required for the full transcriptional repressor activity of YY1 and targeted YY1 for active deacetylation by HDACs.
SIGNOR-268837
P46108
P08069
0
phosphorylation
down-regulates activity
0.722
On activation of the IGF-I receptor, Crk-II binds to phosphorylated tyrosine residues, especially in the juxtamembrane region. As a result of this binding, the IGF-I receptor kinase phosphorylates Tyr-221 of Crk-II, resulting in a change in intramolecular folding and binding of the SH2 domain to the phosphorylated Tyr-221, which causes rapid disassociation of the Crk-II-IGF-I receptor complex.
SIGNOR-251273
Q7Z6J0
Q15011
1
ubiquitination
up-regulates activity
0.324
Upon TG induced ER calcium store depletion, POSH promotes Herp lys-63-linked polyubiquitination, which in turn promotes the redistribution of Herp to the ER .|Upon thapsigargin-induced endoplasmic reticulum calcium store depletion, POSH promotes Herp lys-63-linked polyubiquitination, which in turn promotes the redistribution of Herp to the endoplasmic reticulum .
SIGNOR-278779
P46937
P35222
2
binding
up-regulates
0.531
Additionally, the hippo and wnts also cooperate in the nucleus, where yap interacts with beta-catenin and induces the expression of canonical wnt target genes, such as sox2 and snai2 in mouse heart tissue.
SIGNOR-201939
P56704
Q9NPG1
2
binding
up-regulates activity
0.64
Here we focus on the role of Wnts, their putative receptors Frizzled and the soluble antagonist Frzb1 in regulating mammalian myogenesis. Although it is becoming evident that the signaling downstream of Frizzled receptors is much more complex than anticipated, it is conceivable that it may lead to transcriptional activation of Myf5 and MyoD and to initiation of myogenesis.
SIGNOR-73039
P46531
Q13526
2
binding
up-regulates
0.384
Prolyl-isomerase pin1 interacts with notch1 and affects notch1 activation. Pin1 potentiates notch1 cleavage by gamma-secretase, leading to an increased release of the active intracellular domain and ultimately enhancing notch1. pin1 potentiates notch1 cleavage by gamma-secretase
SIGNOR-183461
Q99836
Q13114
2
binding
up-regulates activity
0.694
Using MyD88 as a prototypical adaptor, we identified TNF receptor-associated factor 3 (TRAF3) as a new component of TIR signalling complexes that is recruited along with TRAF6.
SIGNOR-256079
Q9UK80
Q16539
0
phosphorylation
up-regulates activity
0.253
In this study, we found that USP21 is an important deubiquitinating enzyme for STING and that it negatively regulates the DNA virus-induced production of type I interferons by hydrolyzing K27/63-linked polyubiquitin chain on STING. HSV-1 infection recruited USP21 to STING at late stage by p38-mediated phosphorylation of USP21 at Ser538. I
SIGNOR-273670
P14174
P00441
1
relocalization
down-regulates quantity by destabilization
0.307
Here, we show that MIF inhibits mutant SOD1 nuclear clearance when overexpressed in motor neuron-like NSC-34 cells|SOD1WT is evenly distributed between the cytoplasm and the nucleus while mutant SOD1G93A shows predominantly cytoplasmic distribution (Fig. 1a, b). Expression of MIF in cells expressing SOD1WT had no effect on the distribution of the SOD1WT–EGFP protein. However, expression of MIF together with the mutant SOD1G93A–EGFP, inhibited the nuclear clearance of misfolded SOD1 resulting in a more wild-type-like distribution of the mutant SOD1 protein
SIGNOR-262797
P31749
Q13043
1
phosphorylation
down-regulates
0.397
Akt interacts with mst1 and phosphorylates a highly conserved residue threonine 120 of mst1, which leads to inhibition of its kinase activity and nuclear translocation as well as the autophosphorylation of thr(183).
SIGNOR-252507
Q13950
Q8IYA7
0
transcriptional regulation
up-regulates quantity by expression
0.301
MKX is a meniscus-enriched transcription factor. In human meniscus cells, MKX regulates the expression of meniscus marker genes, OA-related genes, and other transcription factors, including Scleraxis (SCX), SRY Box 5 (SOX5), and Runt domain-related transcription factor 2 (RUNX2).
SIGNOR-267215
P05111
Q03167
2
binding
down-regulates
0.589
Type iii tgf-beta receptor, betaglycan, can function as an inhibin co-receptor with actrii. Betaglycan binds inhibin with high affinity and enhances binding in cells co-expressing actrii and betaglycan. ability of betaglycan to facilitate inhibin antagonism of activin
SIGNOR-76470
P27361
Q9UQC2
1
phosphorylation
up-regulates
0.617
Phosphorylation of grb2-associated binder 2 on serine 623 by erk mapk regulates its association with the phosphatase shp-2 and decreases stat5 activation.We and others have demonstrated that il-2-induced tyrosine phosphorylation of gab2 and its interaction with its sh2 domain-containing partners, shp-2, p85 pi3k, and crkl (5, 26, 27). we report that pretreatment of kit 225 cells with the mek inhibitor u0126, strongly decreased the characteristic shift of gab2 in response to il-2 and increased gab2/shp-2 association, an effect that could be ascribed to erk phosphorylation of serine 623.
SIGNOR-128731
P40763
Q9NZQ7
1
transcriptional regulation
up-regulates quantity by expression
0.464
STAT3 and HIF-1α cooperatively enhance PD-L1 expression in EML4-ALK-translocated pADC cells under hypoxia.The protein-DNA binding assay revealed that pSTAT3 was bound to the PD-L1 promoter region in H23 cells transfected with EML4-ALK.
SIGNOR-259188
P00734
Q96RI0
2
binding
up-regulates
0.697
Thrombin activates platelets by binding and cleaving protease-activated receptors 1 and 4 (par1 and par4).
SIGNOR-196003
P31749
P28482
1
phosphorylation
up-regulates activity
0.533
AKT1 stimulated PLD activity via activation of ERK.|AKT1 actually phosphorylated ERK2 as a substrate (K(m) 1 \u03bcm).
SIGNOR-279136
Q96JC1
P36897
2
binding
up-regulates activity
0.2
TLP interacts with TGF-β and activin receptors in vivo. Endogenous TLP associates with both active and kinase-deficient TGF-beta and activin type II receptors, but interacts with the common-mediator Smad4 only in the presence of TGF-beta/activin signaling.
SIGNOR-261375
Q9HCE7
O95947
1
polyubiquitination
down-regulates quantity by destabilization
0.257
Smad6 mediates Tbx6 ubiquitination and proteasomal degradation. Tbx6 forms a ternary complex with Smad6 and Smurf1. Here, we report that Tbx6 interacts directly with Smad6, an inhibitory Smad that antagonizes the BMP signal. This interaction is mediated through the Mad homology 2 (MH2) domain of Smad6 and residues 90-180 of Tbx6. We demonstrate that Smad6 facilitates the degradation of Tbx6 protein through recruitment of Smurf1, a ubiquitin E3 ligase.
SIGNOR-272784
O14578
P12931
0
phosphorylation
up-regulates activity
0.273
CitK is tyrosine phosphorylated by Src in response to EphB2 signaling.
SIGNOR-279484
P35813
O14920
1
dephosphorylation
down-regulates
0.308
Using a functional genomic approach, we have identified two protein serine/threonine phosphatases, ppm1a and ppm1b, as ikkbeta phosphatases. Overexpression of ppm1a or ppm1b results in dephosphorylation of ikkbeta at ser177 and ser181 and termination of ikkbeta-induced nf-kappab activation
SIGNOR-181659
P30968
P63096
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-257064
P02461
Q8NBJ5
0
glycosylation
up-regulates activity
0.404
Recombinant GLT25D1 and GLT25D2 enzymes showed a strong galactosyltransferase activity toward various types of collagen and toward the serum mannose-binding lectin MBL, which contains a collagen domain. Amino acid analysis of the products of GLT25D1 and GLT25D2 reactions confirmed the transfer of galactose to hydroxylysine residues.
SIGNOR-261154
Q16584
O95819
0
phosphorylation
up-regulates activity
0.304
The MAP4K4 and MLK3 associates with each other, and MAP4K4 phosphorylates MLK3 on Thr738 and increases MLK3 kinase activity and downstream signaling.
SIGNOR-277571
P21731
P50148
2
binding
up-regulates activity
0.654
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-256887
Q04721
Q8NBL1
2
binding
up-regulates
0.575
O-glucosylation of epidermal growth factor-like (egf) repeats in the extracellular domain of notch is essential for notch function. O-glucose can be elongated by xylose to the trisaccharide, xylalfa1-3xylalfa1-3glcbeta1-o-ser, whose synthesis is catalyzed by the consecutive action of three glycosyltransferases. A udp-glucose:protein o-glucosyltransferase (poglut/rumi) transfers o-glucose to serine within the o-glucose consensus.
SIGNOR-198716
O15524
P15260
2
binding
down-regulates
0.674
Suppressor of cytokine signaling (socs)-1, the key negative regulator of interferon (ifn)-gamma-dependent signaling, is induced in response to ifngamma. Socs-1 binds to and inhibits the ifngamma receptor-associated kinase janus-activated kinase (jak) 2 and inhibits its function in vitrothe binding of socs-1 to tyr441 also blocks the access of stat1 to tyr419 and that this effect may be the principal mechanism of inhibition of downstream signaling
SIGNOR-180140
P27448
Q15831
0
phosphorylation
up-regulates activity
0.315
Regulation of the wnt signalling component par1a by the peutz-jeghers syndrome kinase lkb1. Lkb1 is a master kinase that activates 13 kinases of the ampk subfamily, including mark/par-1. Mark3 is activated by phosphorylation on thr-211.
SIGNOR-104059
P20749
Q00653
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
Q15661
P55085
2
binding
up-regulates activity
0.251
Mast cells contribute to tissue repair in fibrous tissues by stimulating proliferation of fibroblasts through the release of tryptase which activates protease-activated receptor-2 (PAR-2).|Taken together, our data show that tryptase can stimulate myoblast proliferation and this effect is part of a signaling cascade dependent on PAR-2 activation and on the downstream activation of COX-2.
SIGNOR-251744
Q15759
Q15796
1
phosphorylation
down-regulates
0.352
Smads can also be phosphorylated in the linker region most prominently by the action of mitogen-activated protein (map) kinaseslinker region phosphorylation can prevent nuclear translocation of smads and inhibit tgf-_ signalling, potentially leading to oncogenesis.
SIGNOR-167848
P62136
P24941
0
phosphorylation
down-regulates activity
0.377
Both of these pp1 isoforms contain an arg-pro-ile/val-thr-pro-pro-arg sequence near the c terminus, a known site of phosphorylation by cdc/cdk kinases, and phosphorylation attenuates phosphatase activity
SIGNOR-92265
P11908
Q9NRM7
0
phosphorylation
down-regulates quantity by destabilization
0.2
 Recruitment of TRAF2 to PRPS1/2 requires phosphorylation of PRPS1 S285 or PRPS2 T285, which is mediated by low stiffness-activated large tumor suppressor (LATS)1/2 kinases.LATS1/2-dependent S/T285 phosphorylation is required for PRPS1/2 ubiquitination and degradation at low stiffness.
SIGNOR-276507
Q8WU20
Q06124
1
phosphorylation
up-regulates
0.78
In addition to the direct interactions with grb2, tyrosine-phosphorylated frs2 forms a complex with the sh2 domain-containing protein tyrosine phosphatase shp2. This interaction results in tyrosine phosphorylation of shp2 and complex formation between shp2 and grb2. the catalytic activity of shp2 is essential for a sustained map kinase response and for potentiation of fgf-induced neurite outgrowth in pc12 cells
SIGNOR-58196
Q9NR80
P60953
1
guanine nucleotide exchange factor
up-regulates activity
0.739
We therefore developed a screening-compatible live-cell imaging assay, using FRET-based biosensors for the prototype GTPases RHOA, RAC1 and CDC4215,19,20 (Extended Data Fig. 2 and Supplementary Note 1)|We found catalytic activities for 45/75 RhoGEFs and 48/63 RhoGAPs| Our data thus not only reveal extensive promiscuity among regulators, but also that the inactivating RhoGAPs are less selective than the activating RhoGEFs (p-value=0.02)(Supplementary Table 2).
SIGNOR-260532
Q13418
Q9UMS6
1
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
Q03112
P84022
2
binding
down-regulates
0.491
Evi-1 interacts with smad3, an intracellular mediator of tgf-beta signalling, thereby suppressing the transcriptional activity of smad3.
SIGNOR-59132
P49792
O60260
0
ubiquitination
down-regulates quantity by destabilization
0.2
Our findings suggested that the intracellular levels of RanBP2 and its functional activity may be modulated by Parkin-mediated ubiquitination and proteasomal pathways. Furthermore, Parkin controls the intracellular levels of sumoylated HDAC4, as a result of the ubiquitination and degradation of RanBP2.
SIGNOR-259116
P01106
P20839
1
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
Q8NG68
Q9NY65
1
tyrosination
down-regulates
0.31
Tubulin tyrosine ligase (ttl) adds a c-terminal tyr to __tubulin as part of a tyrosination/detyrosination cycle present in most eukaryotic cells. / ttl inhibits spontaneous tubulin polymerization
SIGNOR-176930
P30281
P49841
0
phosphorylation
down-regulates
0.435
We have previously shown that both basal and camp-induced degradation of cyclin d3 in reh cells is dependent on thr-283 phosphorylation by glycogen synthase kinase-3beta (gsk-3beta).
SIGNOR-142880
Q16539
Q13115
0
dephosphorylation
down-regulates
0.665
This result suggests that dusp4 represses gluconeogenesis through dephosphorylation of p38
SIGNOR-147958
Q9UGL1
P06493
0
phosphorylation
down-regulates activity
0.258
Phosphorylation of the histone demethylase KDM5B and regulation of the phenotype of triple negative breast cancer|Here, we demonstrate that KDM5B is phosphorylated at Ser1456 by the cyclin-dependent kinase 1 (CDK1). Phosphorylation of KDM5B at Ser1456 attenuated the occupancy of KDM5B on the promoters of pluripotency genes.
SIGNOR-273435
Q96LT7
P62820
2
binding
up-regulates activity
0.474
C9orf72 acts as an effector of Rab1a that recruits active Rab1a to theULK1 complex to promote translocation of the ULK1 complex to thephagophore during autophagy initiation
SIGNOR-261297
Q14654
Q13557
0
phosphorylation
down-regulates
0.2
Results showed that activation of camkii triggered dynamin-dependent internalization of k(atp) channels. This process required phosphorylation of threonine at 180 and 224 and an intact (330)yskf(333) endocytosis motif of the k(atp) channel kir6.2 pore-forming subunit.
SIGNOR-200027
P15173
Q99750
2
binding
down-regulates activity
0.374
We demonstrate that I-mf inhibits the transactivation activity of the MyoD family and represses myogenesis. I-mf associates with MyoD family members and retains them in the cytoplasm by masking their nuclear localization signals.
SIGNOR-240493
P16157
O00631
2
binding
down-regulates activity
0.257
These results suggest that sAnk1 interacts with SLN both directly and in complex with SERCA1 and reduces SLN's inhibitory effect on SERCA1 activity.
SIGNOR-265930
Q9UM73
P10636
1
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
P37231
P36406
0
ubiquitination
up-regulates quantity by stabilization
0.2
In this study, we showed that TRIM23 mediates atypical polyubiquitin conjugation including M1- and K27 linked ubiquitin chains to PPARgamma and that ubiquitination of PPARgamma by TRIM23 causes reduced recognition of PPARgamma by 26S proteasome.
SIGNOR-278577
P0DP23
Q08209
2
binding
up-regulates
0.751
Calcium-bound calmodulin associates with calcineurin (cn), releasing the phosphatase from the repressive effects on an autoinhibitory domain.
SIGNOR-114098
O15226
P01574
1
transcriptional regulation
down-regulates quantity by repression
0.358
Constitutive silencing of IFN-beta promoter is mediated by NRF (NF-kappaB-repressing factor), a nuclear inhibitor of NF-kappaB
SIGNOR-266227
Q9NX47
O75460
1
ubiquitination
down-regulates activity
0.2
MITOL promotes K63-linked chain ubiquitination of IRE1\u03b1 at lysine 481 (K481), thereby preventing hyper-oligomerization of IRE1\u03b1 and regulated IRE1\u03b1-dependent decay (RIDD).
SIGNOR-278609
P10070
O43791
0
ubiquitination
down-regulates quantity
0.71
RNAi knockdown of Spop (a substrate-binding adaptor for the cullin3-based ubiquitin E3 ligase) in Sufu mutant mouse embryonic fibroblasts (MEFs) can restore the levels of Gli2 and Gli3 full-length proteins
SIGNOR-268860
Q9H2X6
O15379
1
phosphorylation
down-regulates activity
0.2
Mechanistically, HIPK2 bound and phosphorylated histone deacetylase 3 (HDAC3) at serine 374 to inhibit its enzymatic activity, thus reducing the deacetylation of p65 at lysine 218 to suppress NF-κB activation.
SIGNOR-277568
Q96KB5
P60484
1
phosphorylation
down-regulates activity
0.504
PTEN is phosphorylated by TOPK and is required for mitotic entry. In addition, reduced PTEN phosphorylation levels upon TOPK knockdown correlated with decreased Akt activation (Fig. 4e) suggesting that TOPK mediated phosphorylation may lead to PTEN inactivation. By using various PTEN mutants in a kinase assay we concluded that TOPK phosphorylates PTEN at S380 residue in vitro (Fig. 4c).
SIGNOR-271472
P36897
P01137
2
binding
up-regulates activity
0.846
TGFbeta signals are transmitted via a cell surface receptor complex consisting of the TGFbeta type I receptor (TbetaRI) and TGFbeta type II receptor (TbetaRII). To initiate signal transduction, TGFbeta binds to TbetaRII, which in turn recruits TbetaRI, leading to the formation of a tetrameric receptor complex.
SIGNOR-249548
Q15139
Q9UQL6
1
phosphorylation
down-regulates activity
0.516
Here, we demonstrate that signaling by protein kinase C (PKC) is sufficient and, in some cases, necessary to drive nuclear export of class II HDAC5 in cardiomyocytes.
SIGNOR-249270
Q9BYF1
P01019
1
cleavage
up-regulates activity
0.759
The ACE2 hydrolytic activity is dependent on the C terminus sequence of the substrate, which is evident from the data with the angiotensin peptides. After 2 h, ACE2 hydrolyzes Ang I partially and Ang II completely, although there is no hydrolysis of angiotensin 1–9, angiotensin 1–7, and angiotensin 1–5, which possess the same N terminus.
SIGNOR-256315
P11362
Q02156
0
phosphorylation
up-regulates
0.2
Phosphorylation of serine 779 in fibroblast growth factor receptor 1 and 2 by protein kinase c(epsilon) regulates ras/mitogen-activated protein kinase signaling and neuronal differentiationour findings show that in addition to fgfr tyrosine phosphorylation, the phosphorylation of a conserved serine residue, ser(779), can quantitatively control ras/mapk signaling to promote specific cellular responses.
SIGNOR-201671
O43521-1
Q9H6Z9
0
hydroxylation
up-regulates quantity by stabilization
0.254
EglN3 hydroxylase stabilizes BIM-EL linking VHL type 2C mutations to pheochromocytoma pathogenesis and chemotherapy resistance|EglN3 Hydroxylates BIM-EL at the Proline67/70 Residues
SIGNOR-262003
P17252
Q13043
0
phosphorylation
up-regulates activity
0.2
Mst1 and Mst2 activate PKC\u03b1 to disrupt the LyGDI-Rac complex.|Thus, the phosphorylation of PKC\u03b1 at Ser226 and Thr228 by Mst1 and Mst2 is required for the optimal activation of PKC\u03b1.
SIGNOR-280146
P69905
Q9NZD4
2
binding
up-regulates quantity by stabilization
0.774
α-Hemoglobin stabilizing protein (AHSP) binds α-hemoglobin (Hb), avoiding its precipitation and its pro-oxidant activity.
SIGNOR-251770
O00308
P48431
1
ubiquitination
down-regulates quantity
0.361
Among the four E3 ligases, only WWP2 knockdown was found to increase SOX2 protein levels in GSCs (Fig.\u00a04A).|We first verified that WWP2 ubiquitinates SOX2 in vitro.
SIGNOR-278798
P49841
Q9Y4K3
1
phosphorylation
down-regulates quantity by destabilization
0.479
TRAF6 was phosphorylated at Thr266 by GSK3B in most clinical CRC, which triggered K48-linked polyubiquitination and degradation of TRAF6 and thereby attenuated its inhibitory activity towards the autophagy-dependent CTNNB1 signaling.
SIGNOR-277438
O43614
P19086
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-257124
Q969R2
P45983
0
phosphorylation
up-regulates activity
0.2
CK1a1, JNK1 and CDK1 had the highest site-specific activity for ORP4L, while CDK1, GSK3a, CK1a1 and GSK3b showed the highest specificity for the site when corrected for background activity with ORP4L-S4A. Because of the complexity of the serine/proline-rich site, we did not determine which serine(s) in ORP4L were phosphorylated by candidate kinases.|We conclude that phosphorylation of a unique serine/proline motif in the ORD induces a conformation change in ORP4L that enhances interaction with vimentin and cholesterol extraction from membranes.
SIGNOR-264876
P04637
Q9NYY3
0
phosphorylation
up-regulates activity
0.592
Other investigators have demonstrated that Plk2 phosphorylates mutant p53 in a positive feedback loop.
SIGNOR-278980
P08754
P25101
2
binding
up-regulates activity
0.434
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-257165
Q9NX95
Q16623
1
relocalization
up-regulates activity
0.421
Conventional kinesin I heavy chain binds to syntabulin and associates with syntabulin-linked syntaxin vesicles in vivo. These findings suggest that syntabulin functions as a linker molecule that attaches syntaxin-cargo vesicles to kinesin I, enabling the transport of syntaxin-1 to neuronal processes.
SIGNOR-264812
O43318
Q8N5C8
2
binding
up-regulates activity
0.833
We have identified a new binding partner of the tgfbeta (transforming growth factor-beta)-activated protein kinase (tak1), termed tab.two distinct tak1 complexes are present in cells. One comprises tak1 complexed with tab1 and tab2, and the other tak1 complexed with tab1 and tab3 (tak1-binding protein-3). Both complexes are activated in response to tumour necrosis factor-alpha or interleukin-1.
SIGNOR-120325
P42702
P15018
2
binding
up-regulates
0.76
Lif binds at low-affinity to lifr, the structure of which is closely related to that of gp130 (42). Lifr then becomes heterodimerized with gp130 to form the high-affinity and signaling-competent complex (43). Osm utilizes this type of heterodimer, i.e. the lifr/gp130 complex (43, 44).
SIGNOR-139102
Q96J02
Q9NZQ7
1
ubiquitination
down-regulates quantity by destabilization
0.2
ITCH Ubiquitinates and Down-Regulates Tumor-Surface PD-L1.|The current study supports a model (Fig. 7) in which the E3 ligase ITCH mediates poly-ubiquitination of PD-L1 and down-regulates tumor cell-surface PD-L1 levels (via ubiquitin-directed lysosomal degradation) in MAPKi-adapted melanoma cells and in potentially other biologic contexts such quasi-mesenchymal tumor cell-states that contribute to therapy resistance and metastatic potential.
SIGNOR-278815
P42229
Q9ULZ2
2
binding
up-regulates activity
0.421
STAP-1 was tyrosine-phosphorylated by activated c-kit. An in vitro binding assay suggested that the STAP-1 SH2 domain interacted with several tyrosine-phosphorylated proteins including c-kit and STAT5. These suggest that STAP-1 functions as an adaptor molecule downstream of c-kit in hematopoietic stem cells.
SIGNOR-261821
P61970
P37198
2
binding
up-regulates activity
0.845
Our data suggest that NTF2 interacts directly with NPC protein 1362 and exerts its effect at a relatively late step in the nuclear protein import pathway. We obtained a cDNA encoding NTF2 and showed that the recombinant protein restores transport activity to p62-pretreated cytosol.
SIGNOR-261255
P68400
Q9HCU9
1
phosphorylation
down-regulates quantity by destabilization
0.473
We show that BRMS1 is posttranslationally regulated by TNF-induced casein kinase 2 catalytic subunit (CK2α') phosphorylation of nuclear BRMS1 on serine 30 (S30), resulting in 14-3-3ε-mediated nuclear exportation, increased BRMS1 cytosolic expression, and ubiquitin-proteasome-induced BRMS1 degradation.
SIGNOR-266407
Q9HCP0
Q12778
1
phosphorylation
down-regulates activity
0.494
Phosphorylation of Ser319 forms a consensus sequence for phosphorylation by CK1, allowing it to phosphorylate Ser322, which in turn primes the CK1-catalysed phosphorylation of Ser325 | Multisite phosphorylation of the region containing Ser319, Ser322, Ser325 and Ser329 provides a signal for the nuclear exclusion of FKHR
SIGNOR-250822