Molecular characterization of a gene from Saccharopolyspora erythraea (Streptomyces erythraeus) which is involved in erythromycin biosynthesis
- 27 October 1989
- journal article
- research article
- Published by Wiley in Molecular Microbiology
- Vol. 3 (10), 1405-1414
- https://doi.org/10.1111/j.1365-2958.1989.tb00123.x
Abstract
A 7.3 kbp DNA fragment, encompassing the erythromycin (Em) resistance gene (ermE) and a portion of the gene cluster encoding the biosynthetic genes for erythromycin biosynthesis in Saccharopolyspora erythraea (formerly Streptomyces erythraeus) has been cloned in Streptomyces lividans using the plasmid vector pIJ702, and its nucleotide sequence has been determined using a modified dideoxy chain termination procedure. In particular, we have examined the region immediately 5'' of the resistance determinant, where the tandem promoters for ermE overlap the promoters for a divergently transcribed coding sequence (ORF). Disruption of this ORF using an integrational pIJ702-based plasmid vector gave mutants which were specifically blocked in erythromycin biosynthesis, and which accumulated 3-O-.alpha.-L-mycarosylerythronolide B: this behaviour is identical to that of previously described eryC1 mutants. The eryC1-gene product, a protein of subunit Mr 39,200, is therefore involved either as a structural or as a regulatory gene in the formation of the deoxyamino-sugar desosamine or in its attachment to the macrolide ring.This publication has 24 references indexed in Scilit:
- The use of a chromosome integration vector to map erythromycin resistance and production genes in Saccharopolyspora erythraea (Streptomyces erythraeus)Gene, 1988
- A small, discrete acyl carrier protein is involved in de novo fatty acid biosynthesis in Streptomyces erythraeusFEBS Letters, 1987
- Macrolide antibiotic biosynthesis: isolation and properties of two forms of 6-deoxyerythronolide B hydroxylase from Saccharopolyspora erythraea (Streptomyces erythreus)Biochemistry, 1987
- Homology between Streptomyces genes coding for synthesis of different polyketides used to clone antibiotic biosynthetic genesNature, 1987
- Transfer of the Type Strain of Streptomyces erythraeus (Waksman 1923) Waksman and Henrici 1948 to the Genus Saccharopolyspora Lacey and Goodfellow 1975 as Saccharopolyspora erythraea sp. nov., and Designation of a Neotype Strain for Streptomyces erythraeusInternational Journal of Systematic and Evolutionary Microbiology, 1987
- TRANSCRIPTION TERMINATION AND THE REGULATION OF GENE EXPRESSIONAnnual Review of Biochemistry, 1986
- Improved M13 phage cloning vectors and host strains: nucleotide sequences of the M13mpl8 and pUC19 vectorsGene, 1985
- N-methyl transferase of Streptomyces erythraeus that confers resistance to the macrolidelincosamide-streptogramin B antibiotics: amino acid sequence and its homology to cognate R-factor enzymes from pathogenic bacilli and cocciGene, 1984
- Detection of specific sequences among DNA fragments separated by gel electrophoresisJournal of Molecular Biology, 1975
- Neuere Entwicklungen in der Chemie der NaturstoffeAngewandte Chemie, 1956