A Polyketide Cyclase That Forms Medium-Ring Lactones.
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ABSTRACT: Medium-ring lactones are synthetically challenging due to unfavorable energetics involved in cyclization. We have discovered a thioesterase enzyme DcsB, from the decarestrictine C1 (1) biosynthetic pathway, that efficiently performs medium-ring lactonizations. DcsB shows broad substrate promiscuity toward linear substrates that vary in lengths and substituents, and is a potential biocatalyst for lactonization. X-ray crystal structure and computational analyses provide insights into the molecular basis of catalysis.
SUBMITTER: Gao DW
PROVIDER: S-EPMC8126169 | biostudies-literature |
REPOSITORIES: biostudies-literature
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