PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15887869-9 2005 Thus, it has been revealed that the synthesis of enzyme 21-OH is controlled by two genes, the active CYP21B gene and the CYP21A pseudogene. 21-oh 56-61 cytochrome P450 family 21 subfamily A member 2 Homo sapiens 101-107