Engineering fungal nonreducing polyketide synthase by heterologous expression and domain swapping.

Engineering fungal nonreducing polyketide synthase by heterologous expression and domain swapping.
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DOI:
10.1021/ol303328t
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发表时间:
2013-02-15
期刊:
影响因子:
5.2
通讯作者:
Wang, Clay C. C.
Wang, Clay C. C.
中科院分区:
化学1区
文献类型:
--
作者:
Yeh, Hsu-Hua;Chang, Shu-Lin;Chiang, Yi-Ming;Bruno, Kenneth S.;Oakley, Berl R.;Wu, Tung-Kung;Wang, Clay C. C.

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We re-annotated the A. niger NR-PKS gene, e_gw1_19.204 and its downstream R domain gene, est_GWPlus_C_190476 as a single gene which we name dtbA. Heterologous expression of dtbA in A. nidulans demonstrated that DtbA protein produces two polyketides, 2,4-dihydroxy-3,5,6-trimethylbenzaldehyde 1 and 6-ethyl-2,4-dihydroxy-3,5-dimethylbenzaldehyde 2. Generation of DtbAΔR+TE chimeric PKSs by swapping the DtbA R domain with the AusA (austinol biosynthesis) or ANID_06448 TE domain enabled the production of two metabolites with carboxylic acids replacing the corresponding aldehydes.
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