Diene incorporation by a dehydratase domain variant in modular polyketide synthases.
Diene incorporation by a dehydratase domain variant in modular polyketide synthases.
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DOI:
10.1038/s41589-022-01127-y
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发表时间:
2022-12
影响因子:
14.8
通讯作者:
Challis GL
中科院分区:
文献类型:
--
作者:
Hobson C;Jenner M;Jian X;Griffiths D;Roberts DM;Rey-Carrizo M;Challis GL
Modular polyketide synthases (PKSs) are biosynthetic assembly lines that construct structurally diverse natural products with wide-ranging applications in medicine and agriculture. Various mechanisms contribute to structural diversification during PKS-mediated chain assembly, including dehydratase (DH) domain-mediated elimination of water from R and S-configured 3-hydroxy thioesters to introduce E and Z-configured carbon-carbon double bonds, respectively. Here we report the discovery of a novel DH domain variant that catalyses the sequential elimination of two molecules of water from a (3R, 5S)-3, 5-dihydroxy thioester during polyketide chain assembly, introducing a - conjugated E, Z-diene into various modular PKS products. We show that the reaction proceeds via a (2E, 5S)-2-enoyl-5-hydroxy thioester intermediate and involves an additional universally conserved histidine residue that is absent from the active site of most conventional DH domains. These findings expand the diverse range of chemistries mediated by DH-like domains in modular PKSs, highlighting the catalytic versatility of the double hot dog fold.
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影响因子:
64.8
作者:
Jumper J;Evans R;Pritzel A;Green T;Figurnov M;Ronneberger O;Tunyasuvunakool K;Bates R;Žídek A;Potapenko A;Bridgland A;Meyer C;Kohl SAA;Ballard AJ;Cowie A;Romera-Paredes B;Nikolov S;Jain R;Adler J;Back T;Petersen S;Reiman D;Clancy E;Zielinski M;Steinegger M;Pacholska M;Berghammer T;Bodenstein S;Silver D;Vinyals O;Senior AW;Kavukcuoglu K;Kohli P;Hassabis D
通讯作者:
Hassabis D
影响因子:
15
作者:
Fiers WD;Dodge GJ;Sherman DH;Smith JL;Aldrich CC
通讯作者:
Aldrich CC
DOI:
10.1073/pnas.1818686116
发表时间:
2019-04-02
影响因子:
11.1
作者:
Dodge, Greg J.;Patel, Ashay;Burkart, Michael D.
通讯作者:
Burkart, Michael D.
影响因子:
2.9
作者:
Quadri, LEN;Weinreb, PH;Walsh, CT
通讯作者:
Walsh, CT
DOI:
10.1002/anie.201805363
发表时间:
2018-09-03
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Meoded RA;Ueoka R;Helfrich EJN;Jensen K;Magnus N;Piechulla B;Piel J
通讯作者:
Piel J