PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
8504753-4	1993	We used site-directed mutagenesis to construct expression vectors for the conservative P450c17 mutations Ser106-->Thr and Ser106-->Ala.	Threonine	117-120	cytochrome P450 family 17 subfamily A member 1	Homo sapiens	87-94