Biosynthesis of the erythromycin macrolactone and a rational approach for producing hybrid macrolides
The three eryA genes involved in the formation of the polyketide portion of the macrolide antibiotic erythromycin in Saccharopolyspora erythraea, appear to be organized in a single transcriptional unit on the basis of the results of gene disruption experiments. An insertion sequence-like element of...
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Veröffentlicht in: | Gene 1992-06, Vol.115 (1), p.97-103 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The three
eryA genes involved in the formation of the polyketide portion of the macrolide antibiotic erythromycin in
Saccharopolyspora erythraea, appear to be organized in a single transcriptional unit on the basis of the results of gene disruption experiments. An insertion sequence-like element of lower G + C content separates
eryAI from
eryAII. The organization of the enzymatic domains present in the
eryA-encoded multifunctional polypeptides, determined by computer-assisted analysis, is presented. This has enabled the determination of a putative dehydratase domain. A rational approach for producing novel macrolides by introducing selected changes in polyketide synthase genes is outlined. The isolation of a lactone intermediate resulting from an early synthesis step in macrolactone formation is also presented. |
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ISSN: | 0378-1119 1879-0038 |
DOI: | 10.1016/0378-1119(92)90546-2 |