PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 17018524-1 2006 Src family tyrosine kinases are down-regulated through phosphorylation of a single C-terminal tyrosine by the nonreceptor tyrosine kinase Csk. Tyrosine 11-19 C-terminal Src kinase Homo sapiens 138-141