PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 27604527-1 2016 Heme oxygenases are composed of two isozymes, Hmox1 and Hmox2, that catalyze the degradation of heme to carbon monoxide (CO), ferrous iron, and biliverdin, the latter of which is subsequently converted to bilirubin. Heme 96-100 heme oxygenase 1 Homo sapiens 46-51