Homodimericin A: A Complex Hexacyclic Fungal Metabolite.
Homodimericin A: A Complex Hexacyclic Fungal Metabolite.
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DOI:
10.1021/jacs.6b07588
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发表时间:
2016-09-28
影响因子:
15
通讯作者:
Clardy J
中科院分区:
文献类型:
--
作者:
Mevers E;Saurí J;Liu Y;Moser A;Ramadhar TR;Varlan M;Williamson RT;Martin GE;Clardy J
Microbes sense and respond to their environment with small molecules, and discovering these molecules and identifying their functions informs chemistry, biology, and medicine. As part of a study of molecular exchanges between termite-associated actinobacteria and pathogenic fungi, we uncovered a remarkable fungal metabolite, homodimericin A, which is strongly upregulated by the bacterial metabolite bafilomycin C1. Homodimericin A is a hexacyclic polyketide with a carbon backbone containing eight contiguous stereogenic carbons in a C20 hexacyclic core. Only half of its carbon atoms have an attached hydrogen, which presented a significant challenge for NMR-based structural analysis. In spite of its microbial production and rich stereochemistry, homodimericin A occurs naturally as a racemic mixture. A plausible nonenzymatic reaction cascade leading from two identical achiral monomers to homodimericin A is presented, and homodimericin A’s formation by this path, a six-electron oxidation, could be a response to oxidative stress triggered by bafilomycin C1.
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影响因子:
3.6
作者:
Matsumori, N;Kaneno, D;Tachibana, K
通讯作者:
Tachibana, K
DOI:
10.1002/anie.201502540
发表时间:
2015-08-24
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
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通讯作者:
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影响因子:
21.8
作者:
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通讯作者:
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影响因子:
15
作者:
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通讯作者:
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影响因子:
2.2
作者:
Gil, Sergi;Felix Espinosa, Juan;Parella, Teodor
通讯作者:
Parella, Teodor