PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 28796517-5 2017 The ozone-initiated cyclohexene oxidation mechanism was perturbed by the introduction of the HO2 radical, leading to the formation of closed-shell hydroperoxides. Hydrogen Peroxide 147-161 heme oxygenase 2 Homo sapiens 93-96