Rational Design of a β-Glycosidase with High Regiospecificity for Triterpenoid Tailoring
Triterpenoids with desired glycosylation patterns have attracted considerable attention as potential therapeutics for inflammatory diseases and various types of cancer. Sugar‐hydrolyzing enzymes with high substrate specificity would be far more efficient than other methods for the synthesis of such...
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Published in | Chembiochem : a European journal of chemical biology Vol. 16; no. 5; pp. 854 - 860 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
23.03.2015
WILEY‐VCH Verlag |
Subjects | |
Online Access | Get full text |
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Summary: | Triterpenoids with desired glycosylation patterns have attracted considerable attention as potential therapeutics for inflammatory diseases and various types of cancer. Sugar‐hydrolyzing enzymes with high substrate specificity would be far more efficient than other methods for the synthesis of such specialty triterpenoids, but they are yet to be developed. Here we present a strategy to rationally design a β‐glycosidase with high regiospecificity for triterpenoids. A β‐glycosidase with broad substrate specificity was isolated, and its crystal structure was determined at 2.0 Å resolution. Based on the product profiles and substrate docking simulations, we modeled the substrate binding modes of the enzyme. From the model, the substrate binding cleft of the enzyme was redesigned in a manner that preferentially hydrolyzes glycans at specific glycosylation sites of triterpenoids. The designed mutants were shown to produce a variety of specialty triterpenoids with high purity.
Triterpenoids with desired glycosylation patterns are of great significance as potential therapeutics. A promiscuous β‐glycosidase was isolated and crystallized, and docking simulations led to rationally designed β‐glycosidases that produced specialty triterpenoids with high purity and regiospecificity. |
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Bibliography: | Minisry of Science, ICT and Future Planing Ministry of Education ArticleID:CBIC201500004 ark:/67375/WNG-4FLPT5MH-Q National Research Foundation (NRF) - No. 2014-004198 istex:57D097A0C42FD8721708FB1DCF40FDF013444E59 These authors contributed equally to this work. ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1439-4227 1439-7633 |
DOI: | 10.1002/cbic.201500004 |