期刊
ORGANIC & BIOMOLECULAR CHEMISTRY
卷 7, 期 1, 页码 111-116出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b813236d
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资金
- Irish Research Council for Engineering, Science, and Technology
The biosynthesis of the pyrrolylpolyene rumbrin (1) in the fungus Auxarthron umbrinum was elucidated using feeding studies with labelled precursors. Incorporation of stable isotopes from [N-15]-proline, [C-13]-methionine and [C-13]-acetate confirmed that these were the precursors of the pyrrole moiety, methyl groups, and backbone of rumbrin, respectively. Label-dilution experiments with pyrrole-2-carboxylate confirmed it was a direct precursor in the biosynthesis of rumbrin. Both 3- and 4-chloropyrrolecarboxylates were also accepted as precursors in polyene production.
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