1cp9
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(New page: 200px<br /> <applet load="1cp9" size="450" color="white" frame="true" align="right" spinBox="true" caption="1cp9, resolution 2.50Å" /> '''CRYSTAL STRUCTURE O...)
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Revision as of 16:35, 29 October 2007
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CRYSTAL STRUCTURE OF PENICILLIN G ACYLASE FROM THE BRO1 MUTANT STRAIN OF PROVIDENCIA RETTGERI
Overview
Penicillin G acylase is an important enzyme in the commercial production, of semisynthetic penicillins used to combat bacterial infections. Mutant, strains of Providencia rettgeri were generated from wild-type cultures, subjected to nutritional selective pressure. One such mutant, Bro1, was, able to use 6-bromohexanamide as its sole nitrogen source. Penicillin, acylase from the Bro1 strain exhibited an altered substrate specificity, consistent with the ability of the mutant to process 6-bromohexanamide., The X-ray structure determination of this enzyme was undertaken to, understand its altered specificity and to help in the design of, site-directed mutants with desired specificities. In this paper, the, structure of the Bro1 penicillin G acylase has been solved at 2.5 A, resolution by ... [(full description)]
About this Structure
1CP9 is a [Protein complex] structure of sequences from [Providencia rettgeri] with CA and SO4 as [ligands]. Active as [[1]], with EC number [3.5.1.11]. Full crystallographic information is available from [OCA].
Reference
Crystal structure of penicillin G acylase from the Bro1 mutant strain of Providencia rettgeri., McDonough MA, Klei HE, Kelly JA, Protein Sci. 1999 Oct;8(10):1971-81. PMID:10548042
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