[Studies on the function of Ser579 and Arg580 in beta-subunit of penicillin G acylase with the method of site-specific mutagenesis].


According to the comparison of amino acid sequence between PGA (Penicillin G Acylase) and PBPs (Penicillin Binding Protein), We suggest that No. 565-595 peptide fragment in beta-subunit of PGA may be a substrate-binding site of enzyme. Plasmid pTZGA was constructed by cloning the 2.6 kb PGA gene of pWGA into phagemid pTZ18U The technique of site-specific… (More)


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