Genes specific for the biosynthesis of clavam metabolites antipodal to clavulanic acid are clustered with the gene for clavaminate synthase 1 in Streptomyces clavuligerus.

Abstract excerpt

Portions of the Streptomyces clavuligerus chromosome flanking cas1, which encodes the clavaminate synthase 1 isoenzyme (CAS1), have been cloned and sequenced. Mutants of S. clavuligerus disrupted in cvm1, the open reading frame located immediately upstream of cas1, were constructed by a gene replacement procedure. Similar techniques were used to generate S. clavuligerus mutants carrying a deletion that...

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