PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 33376139-9 2021 We conclude that OhyA accelerates acid-catalyzed alkene hydration by positioning the fatty acid double bond to attack the active site hydronium ion, followed by the addition of water to the transient carbocation intermediate. Alkenes 49-55 AT695_RS03350 Staphylococcus aureus 17-21