Functional Studies and Revision of the NFAT-133/TM-123 Biosynthetic Pathway in Streptomyces pactum.
Functional Studies and Revision of the NFAT-133/TM-123 Biosynthetic Pathway in Streptomyces pactum.
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DOI:
10.1021/acschembio.2c00454
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发表时间:
2022-08-19
影响因子:
4
通讯作者:
Mahmud, Taifo
中科院分区:
文献类型:
--
作者:
Zhou, Wei;Alharbi, Hattan A.;Hummingbird, Eshe;Keatinge-Clay, Adrian T.;Mahmud, Taifo
The biosynthetic gene cluster of NFAT-133, an inhibitor of the nuclear factor of activated T cells, was recently identified in Streptomyces pactum ATCC 27456. This cluster is conspicuous by its highly disordered noncollinear type I modular polyketide synthase (PKS) genes that encode PKSs with one module more than those expected for the heptaketide NFAT-133 biosynthesis. Thus, the major metabolite NFAT-133 was proposed to derive from an octaketide analogue, TM-123. Here, we report that further bioinformatic analysis and gene inactivation studies suggest that NFAT-133 is not derived from TM-123, but a product of programmed KS7 extension skipping of a nascent heptaketide from the PKS assembly-line that produces TM-123. Furthermore, identification of NFAT-133/TM-123 analogues from mutants of the ATCC 27456 strain suggests that NftN (a putative dehydrogenase), NftE (a cytochrome P450), and NftG (a putative hydrolase/decarboxylase) function ‘in trans’ during the polyketide chain assembly processes.
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影响因子:
3.2
作者:
MADDURI, K;TORTI, F;HUTCHINSON, CR
通讯作者:
HUTCHINSON, CR
影响因子:
3.3
作者:
Hashida, Junko;Niitsuma, Megumi;Omura, Satoshi
通讯作者:
Omura, Satoshi
影响因子:
--
作者:
Lu, Wanli;Roongsawang, Niran;Mahmud, Taifo
通讯作者:
Mahmud, Taifo
影响因子:
4
作者:
Hirsch, Melissa;Fitzgerald, Brendan J.;Keatinge-Clay, Adrian T.
通讯作者:
Keatinge-Clay, Adrian T.
影响因子:
4.8
作者:
Nogales, J;Canales, A;Díaz, E
通讯作者:
Díaz, E