The claR gene of Streptomyces clavuligerus, encoding a LysR-type regulatory protein controlling clavulanic acid biosynthesis, is linked to the clavulanate-9-aldehyde reductase (car) gene.

Abstract excerpt

Two genes, claR and car, encoding proteins involved in clavulanic acid biosynthesis, have been found in a 2.8-kb BglII-EcoRI DNA fragment of Streptomyces clavuligerus adjacent to the region containing the cephamycin and clavulanic acid biosynthesis gene cluster. claR encoded a protein of 431 amino acids (deduced Mr 47080), that showed a significant degree of homology with several transcriptional activators of the...

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