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The gene coding for the glutaryl 7-aminocephalosporanic acid (GL 7-ACA) acylase from Pseudomonas diminuta KAC-1 was cloned and expressed in Escherichia coli. The acylase gene was composed of 2160 base pairs and encoded a polypeptide of 720 amino acid residues. The E. coli BL21 carrying pET2β, the plasmid construct for high expression of GL 7-ACA acylase gene, produced this enzyme at approx. 30% of...
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