Immunogen sequence: QGSLIIHPRK DGEKRNSLPQ IPMLNLEARR SHLSESCSIE SDIYAEIPDE TLRRPGGPQY GIAREDVVLN RILGEGFFGE VYEGVYTNHK G. PTK2B (FAK2) is a cytoplasmic tyrosine kinase involved in calcium-induced regulation of ion channels and activation of the map kinas