Discovery of catalytic phages by biocatalytic self-assembly.
Discovery of catalytic phages by biocatalytic self-assembly.
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通过生物催化自组装发现催化噬菌体。
DOI:
10.1021/ja509393p
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发表时间:
2014-11-12
影响因子:
15
通讯作者:
Matsui H
中科院分区:
文献类型:
--
作者:
Maeda Y;Javid N;Duncan K;Birchall L;Gibson KF;Cannon D;Kanetsuki Y;Knapp C;Tuttle T;Ulijn RV;Matsui H
Discovery of new catalysts for demanding aqueous reactions is challenging. Here, we describe methodology for selection of catalytic phages by taking advantage of localized assembly of the product of the catalytic reaction that is screened for. A phage display library covering 109 unique dodecapeptide sequences is incubated with nonassembling precursors. Phages which are able to catalyze formation of the self-assembling reaction product (via amide condensation) acquire an aggregate of reaction product, enabling separation by centrifugation. The thus selected phages can be amplified by infection of Escherichia coli. These phages are shown to catalyze amide condensation and hydrolysis. Kinetic analysis shows a minor role for substrate binding. The approach enables discovery and mass-production of biocatalytic phages.
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