Tyrosine-protein kinase Yes (YES1)

Non-receptor protein tyrosine kinase that is involved in the regulation of cell growth and survival, apoptosis, cell-cell adhesion, cytoskeleton remodeling, and differentiation. Stimulation by receptor tyrosine kinases (RTKs) including EGRF, PDGFR, CSF1R and FGFR contributes to recruitment of YES1 to the phosphorylated receptor, and activation and phosphorylation of downstream substrates.

Upon EGFR activation, promotes the phosphorylation of PARD3 to prefer epithelial tight junction assembly. Participates in the phosphorylation of specific junctional components such as CTNND1 by stimulating the FYN and FER tyrosine kinases in cell-cell contacts.