Directed Evolution of 2'-Fluoro-Modified, RNA-Supported Carbohydrate Clusters That Bind Tightly to HIV Antibody 2G12.
Directed Evolution of 2'-Fluoro-Modified, RNA-Supported Carbohydrate Clusters That Bind Tightly to HIV Antibody 2G12.
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DOI:
10.1021/jacs.1c03194
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发表时间:
2021-06-16
影响因子:
15
通讯作者:
Krauss IJ
中科院分区:
文献类型:
--
作者:
Redman RL;Krauss IJ
Carbohydrate binding proteins (CBPs) are attractive targets in medicine and biology. Multivalency, with several glycans binding to several binding pockets in the CBP, is important for high-affinity interactions. Herein, we describe a novel platform for design of multivalent carbohydrate cluster ligands by directed evolution, in which serum-stable 2′-fluoro modified RNA (F-RNA) backbones evolve to present the glycan in optimal clusters. We have validated this method by the selection of oligomannose (Man9) glycan clusters from a sequence pool of ~1013 that bind to broadly neutralizing HIV antibody 2G12 with 13 to 36 nM affinities.
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