Endowing homodimeric carbamoyltransferase GdmN with iterative functions through structural characterization and mechanistic studies.
Endowing homodimeric carbamoyltransferase GdmN with iterative functions through structural characterization and mechanistic studies.
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DOI:
10.1038/s41467-022-34387-2
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发表时间:
2022-11-03
影响因子:
16.6
通讯作者:
Bai L
中科院分区:
文献类型:
--
作者:
Wei J;Zhang X;Zhou Y;Cheng X;Lin Z;Tang M;Zheng J;Wang B;Kang Q;Bai L
Iterative enzymes, which catalyze sequential reactions, have the potential to improve the atom economy and diversity of industrial enzymatic processes. Redesigning one-step enzymes to be iterative biocatalysts could further enhance these processes. Carbamoyltransferases (CTases) catalyze carbamoylation, an important modification for the bioactivity of many secondary metabolites with pharmaceutical applications. To generate an iterative CTase, we determine the X-ray structure of GdmN, a one-step CTase involved in ansamycin biosynthesis. GdmN forms a face-to-face homodimer through unusual C-terminal domains, a previously unknown functional form for CTases. Structural determination of GdmN complexed with multiple intermediates elucidates the carbamoylation process and identifies key binding residues within a spacious substrate-binding pocket. Further structural and computational analyses enable multi-site enzyme engineering, resulting in an iterative CTase with the capacity for successive 7-O and 3-O carbamoylations. Our findings reveal a subclade of the CTase family and exemplify the potential of protein engineering for generating iterative enzymes. Carbamoyltransferases are a class of enzymes catalyzing carbamoylation of primary and secondary metabolites. Here, the authors show the molecular structure of the ansamycin-modifying carbamoyltransferase GdmN and repurpose the enzyme for the iterative carbamoylation of ansamitocins.
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影响因子:
21.8
作者:
Dodani SC;Kiss G;Cahn JK;Su Y;Pande VS;Arnold FH
通讯作者:
Arnold FH
影响因子:
12.9
作者:
Huang, Qun;Zhang, Xuan;Wang, Jian-bo
通讯作者:
Wang, Jian-bo
影响因子:
3
作者:
Grimme, S
通讯作者:
Grimme, S
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
影响因子:
4.4
作者:
JORGENSEN, WL;CHANDRASEKHAR, J;KLEIN, ML
通讯作者:
KLEIN, ML