Crystal structure of the condensation domain from lovastatin polyketide synthase
Crystal structure of the condensation domain from lovastatin polyketide synthase
复制标题
洛伐他汀聚酮合酶缩合结构域的晶体结构
DOI:
10.1016/j.synbio.2018.11.003
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发表时间:
2018-11
影响因子:
4.8
通讯作者:
Jianting Zheng
中科院分区:
文献类型:
--
作者:
Lei Wang;Meijuan Yuan;Jianting Zheng
The highly reducing iterative polyketide synthases responsible for lovastatin biosynthesis contains a section homologous to condensation (CON) domain observed in nonribosomal peptide synthetases (NRPSs). In the present study, we expressed the isolated lovastatin CON domain and solved the crystal structure to 1.79 Å resolution. The overall structure shows similarity to canonical condensation domains of NRPSs, containing the N-terminal and C-terminal subdomains that resemble enzymes of chloramphenicol acetyltransferase family, whereas distinct structural features are observed at the active site. The acceptor entry of the substrate channel is blocked by a flexible loop, thereby preventing the loading of substrate for a new round of chain elongation. The mutation of conserved catalytic motif located at the midpoint of substrate channel agrees with the incapability of CON to catalyzed amide-bond formation. The structure helps to understand the function of CON in lovastatin biosynthesis.
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作者:
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作者:
Townsend CA
通讯作者:
Townsend CA
影响因子:
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作者:
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通讯作者:
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作者:
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通讯作者:
Essen, Lars-Oliver
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