PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11340572-3 2001 Steroid 5alpha-reductase type II (SRD5A2), which converts testosterone to the metabolically more active dihydrotestosterone, exhibits 2 polymorphisms: V89L, which substitutes leucine for valine at codon 89, and A49T, which substitutes threonine for alanine at codon 49. Testosterone 58-70 steroid 5 alpha-reductase 2 Homo sapiens 34-40