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ITGB1BP1
The cytoplasmic domains of integrins are essential for cell adhesion. The protein encoded by this gene binds to the beta1 integrin cytoplasmic domain. The interaction between this protein and beta1 integrin is highly specific. Two isoforms of this protein are derived from alternatively spliced transcripts. The shorter form of this protein does not interact with the beta1 integrin cytoplasmic domain. The longer form is a phosphoprotein and the extent of its phosphorylation is regulated by the cell-matrix interaction, suggesting an important role of this protein during integrin-dependent cell adhesion. [provided by RefSeq, Jul 2008]
Predicted location
Intracellular
Single cell type specificity
Cell type enhanced (Distal tubular cells)
Immune cell specificity
Low immune cell specificity
Cell line specificity
Low cell line specificity
Interaction
Interacts (via N-terminus and PTB domain) with ROCK1 (By similarity). Found in a complex, at least composed of ITGB1BP1, KRIT1 and RAP1A. Interacts (via C-terminal region) with ITGB1 (via C-terminal cytoplasmic tail); the interaction prevents talin TLN1 binding to ITGB1 and KRIT1 and ITGB1 compete for the same binding site. Interacts with KRIT1 (via N-terminal NPXY motif); the interaction induces the opening conformation of KRIT1 and KRIT1 and ITGB1 compete for the same binding site. Isoform 2 does not interact with ITGB1. Interacts with CDC42 (GTP- or GDP-bound form); the interaction is increased with the CDC42-membrane bound forms and prevents both CDC42 activation and cell spreading. Interacts (via C-terminal domain region) with NME2. Interacts with FERMT2 and RAC1.
Molecular function
Mitogen
More Types Infomation
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- Species Reactivity: Human
- Application: WB
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For Research Use Only. Not For Clinical Use.