PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21320452-6 2011 We find that 1), a distortion of Glu(183) is important for CPO-catalyzed epoxidation as was postulated previously based on experimental results; 2), the free energy of binding does not provide significant differentiation between structures leading to the respective epoxide enantiomers; and 3), CPO"s enantiospecificity toward cis-beta-methylstyrene is likely to be caused by a specific group of residues which form a hydrophobic core surrounding the oxyferryl heme center. cis-Propenylbenzene 327-349 carboxypeptidase O Homo sapiens 59-62