PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15333773-1 2004 A semi-random mutagenesis approach was followed to increase the performance of penicillin acylase PAS2 in the kinetically controlled synthesis of ampicillin from 6-aminopenicillanic acid (6-APA) and activated D-phenylglycine derivatives. Ampicillin 146-156 glycophorin C (Gerbich blood group) Homo sapiens 98-102