Curation Details
Interaction ID: IM-21760-1

Unique identifier for interactor Auniprotkb:P42224
Unique identifier for interactor Buniprotkb:O60674
Alternative identifier for interactor Aintact:EBI-1057697
uniprotkb:Q53XW4
uniprotkb:B2RCA0
uniprotkb:Q9UDL5
uniprotkb:A8K989
uniprotkb:D2KFR8
uniprotkb:Q68D00
uniprotkb:D3DPI7
ensembl:ENSP00000354394.4
ensembl:ENSP00000386244.1
ensembl:ENSP00000388240.2
ensembl:ENSP00000438703.2
ensembl:ENSP00000513582.1
uniprotkb:Q53S88
Alternative identifier for interactor Bintact:EBI-518647
ensembl:ENSP00000371067.4
uniprotkb:O14636
uniprotkb:O75297
intact:EBI-28977715
Aliases for Apsi-mi:stat1_human(display_long)
uniprotkb:STAT1(gene name)
psi-mi:STAT1(display_short)
uniprotkb:Transcription factor ISGF-3 components p91/p84(gene name synonym)
Aliases for Bpsi-mi:jak2_human(display_long)
uniprotkb:Janus kinase 2(gene name synonym)
uniprotkb:JAK2(gene name)
psi-mi:JAK2(display_short)
Interaction detection methodspsi-mi:"MI:0424"(protein kinase assay)
First authorMenegazzi et al. (2013)
Identifier of the publicationpubmed:24255956
imex:IM-21760
NCBI Taxonomy identifier for interactor Ataxid:9606(human)
taxid:9606(Homo sapiens)
NCBI Taxonomy identifier for interactor Btaxid:9606(human)
taxid:9606(Homo sapiens)
Interaction typespsi-mi:"MI:0217"(phosphorylation reaction)
Source databases and identifierspsi-mi:"MI:0471"(MINT)
Interaction identifier(s) in the corresponding source databaseintact:EBI-8843412
imex:IM-21760-1
Confidence scoreintact-miscore:0.44
Complex expansion-
Biological role AEnzyme target
Biological role BEnzyme
Experimental role ANeutral component
Experimental role BNeutral component
Interactor type AProtein
Interactor type BProtein
Annotations for the interactionfigure legend:f5 sf3
comment:"\"To demonstrate that the direct interaction occurring between active catechins and STAT1 is one of the principal molecular mechanisms of STAT1 Tyr701 phosphorylation inhibition, a cell-free kinase in vitro assay was performed. Recombinant STAT1, pre-incubated with active catechins, were mixed with recombinant active JAK2. Western blot shows the ability of anti-STAT1 catechins to reduce, in a dose-dependent manner, in vitro STAT1 phosphorylation (Figure 5). In line with our hypothesis, we also demonstrated that the inactive compounds were not able to prevent STAT1 phosphorylation (data not shown).\""
comment:Finally, cell free JAK2-kinase assays support SPR and docking data, and confirm that the direct binding of active catechins with STAT1 protein is an important event to affect Tyr701 phosphorylation. Indeed, in vitro kinase assay data indicate that wtSTAT1-catechins pre-treatmentwas able to inhibit, in a dose dependent manner, STAT1 Tyr701 phosphorylation otherwise these effect was not observed with H568A-STAT1 protein
full coverage:Only protein-protein interactions
curation depth:imex curation
NCBI Taxonomy identifier for the host organismtaxid:-1(in vitro)
taxid:-1(In vitro)
Parameters of the interaction-
Creation date2013/11/05
Update date2014/10/16
negative Boolean valuefalse
Feature(s) for interactor Aphosphorylated residue:701-701
Feature(s) for interactor BN-phosphorylated residue:1008-1008
Stoichiometry for interactor A-
Stoichiometry for interactor B-
Participant identification method for interactor AWestern blot
Participant identification method for interactor BWestern blot