Genome Mining and Assembly-Line Biosynthesis of the UCS1025A Pyrrolizidinone Family of Fungal Alkaloids.
Genome Mining and Assembly-Line Biosynthesis of the UCS1025A Pyrrolizidinone Family of Fungal Alkaloids.
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DOI:
10.1021/jacs.8b00056
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发表时间:
2018-02-14
影响因子:
15
通讯作者:
Tang Y
中科院分区:
文献类型:
--
作者:
Li L;Tang MC;Tang S;Gao S;Soliman S;Hang L;Xu W;Ye T;Watanabe K;Tang Y
UCS1025A is a fungal polyketide/alkaloid that displays strong inhibition of telomerase. The structures of UCS1025A and related natural products are featured by a tricyclic furopyrrolizidine connected to a trans-decalin fragment. We mined the genome of a thermophilic fungus and activated the ucs gene cluster to produce UCS1025A at a high titer. Genetic and biochemical analysis revealed a PKS-NRPS assembly line that activates 2S, 3S-methylproline derived from L-isoleucine, followed by Knoevenagel condensation to construct the pyrrolizidine moiety. Oxidation of the 3S-methyl group to a carboxylate leads to an oxa-Michael cyclization and furnishes the furopyrrolizidine. Our work reveals a new strategy used by nature to construct heterocyclic alkaloid-like ring systems using assembly line logic.
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影响因子:
15
作者:
Li L;Yu P;Tang MC;Zou Y;Gao SS;Hung YS;Zhao M;Watanabe K;Houk KN;Tang Y
通讯作者:
Tang Y
影响因子:
8.4
作者:
Lukat P;Katsuyama Y;Wenzel S;Binz T;König C;Blankenfeldt W;Brönstrup M;Müller R
通讯作者:
Müller R
DOI:
10.1002/anie.201705239
发表时间:
2017-09-25
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Li J;Tang X;Awakawa T;Moore BS
通讯作者:
Moore BS
DOI:
10.1002/anie.201504337
发表时间:
2015-08-03
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Nicolaou KC;Shah AA;Korman H;Khan T;Shi L;Worawalai W;Theodorakis EA
通讯作者:
Theodorakis EA
影响因子:
5.2
作者:
Agatsuma, T;Akama, T;Kanda, Y
通讯作者:
Kanda, Y