Beta-lactam antibiotic biosynthetic genes have been conserved in clusters in prokaryotes and eukaryotes

Autor: P Browne, J Brown, David J. Smith, B Barton, John H. Bull, John M. Ward, Alison Jane Earl, J E Hodgson, M K Burnham, Geoffrey Turner
Rok vydání: 1990
Předmět:
Zdroj: The EMBO journal. 9(3)
ISSN: 0261-4189
Popis: A cosmid clone containing closely linked beta-lactam antibiotic biosynthetic genes was isolated from a gene library of Flavobacterium sp. SC 12,154. The location within the cluster of the DNA thought to contain the gene for delta-(L-alpha-aminoadipyl)-L-cysteinyl-D-valine synthetase (ACVS), the first step in the beta-lactam antibiotic biosynthetic pathway, was identified by a novel method. This DNA facilitated the isolation, by cross-hybridization, of the corresponding DNA from Streptomyces clavuligerus ATCC 27064, Penicillium chrysogenum Oli13 and Aspergillus nidulans R153. Evidence was obtained which confirmed that the cross-hybridizing sequences contained the ACVS gene. In each case the ACVS gene was found to be closely linked to other beta-lactam biosynthetic genes and constituted part of a gene cluster.
Databáze: OpenAIRE