PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 31396090-3 2019 Heme oxygenase (HO) -1 can catabolize free heme into carbon monoxide (CO), ferrous iron, and biliverdin (BV)/bilirubin (BR). Heme 43-47 heme oxygenase 1 Homo sapiens 0-22