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阿弗菌素是生物合成途径中阿弗拉菌素和阿弗菌素之间的黄曲霉毒素B1前体。

Averufanin is an aflatoxin B1 precursor between averantin and averufin in the biosynthetic pathway.

作者信息

McCormick S P, Bhatnagar D, Lee L S

出版信息

Appl Environ Microbiol. 1987 Jan;53(1):14-6. doi: 10.1128/aem.53.1.14-16.1987.

Abstract

Wild-type Aspergillus parasiticus produces, in addition to the colorless aflatoxins, a number of pigmented secondary metabolites. Examination of these pigments demonstrated that a major component was an anthraquinone, averufanin. Radiolabeling studies with [14C]averufanin showed that 23% of the label was incorporated into aflatoxin B1 by the wild type and that 31% of the label was incorporated into O-methylsterigmatocystin by a non-aflatoxin-producing isolate. In similar studies with blocked mutants of A. parasiticus the 14C label from averufanin was accumulated in averufin (72%) and versicolorin A (54%) but not averantin. The results demonstrate that averufanin is a biosynthetic precursor of aflatoxin B1 between averantin and averufin.

摘要

野生型寄生曲霉除了产生无色黄曲霉毒素外,还产生多种有色次生代谢产物。对这些色素的检测表明,主要成分是一种蒽醌,即疣孢青霉醌。用[14C]疣孢青霉醌进行的放射性标记研究表明,野生型将23%的标记物掺入黄曲霉毒素B1中,而一个不产生黄曲霉毒素的分离株将31%的标记物掺入O-甲基柄曲霉素中。在对寄生曲霉阻断突变体的类似研究中,来自疣孢青霉醌的14C标记物积累在疣孢菌素(72%)和杂色曲霉素A(54%)中,但未积累在疣孢青霉醇中。结果表明,疣孢青霉醌是黄曲霉毒素B1在疣孢青霉醇和疣孢菌素之间的生物合成前体。

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Averufin in the biosynthesis of aflatoxin B.阿弗菌素在黄曲霉毒素B的生物合成中。
J Am Chem Soc. 1973 Mar 7;95(5):1668-9. doi: 10.1021/ja00786a056.
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Biosynthetic relationship among aflatoxins B1, B2, M1, and M2.黄曲霉毒素B1、B2、M1和M2之间的生物合成关系。
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