期刊
CHEMBIOENG REVIEWS
卷 8, 期 1, 页码 15-26出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cben.202000009
关键词
C-glycosylflavonoid; C-glycosyltransferase; Catalytic mechanism; Crystal structure; Protein engineering
资金
- National Key Research and Development Program of China [2019YFA0706900]
- National Natural Science Foundation of China [21702226]
- China Postdoctoral Science Foundation [2019M662575, 2020M682381]
- Hubei Postdoctoral Sustentation Foundation
C-glycosylflavonoids are important polyphenolic phytochemicals with diverse structures and health benefits. This review provides a comprehensive overview of CGTs involved in the biosynthesis of C-glycosylflavonoids, highlighting their evolutionary relationship, substrate specificity, catalytic mechanism, and protein engineering. It offers important guidance for identifying novel flavonoid CGTs, synthesizing C-glycosylflavonoids, and elucidating the function-structure relationship of flavonoid CGTs.
C-glycosylflavonoids are polyphenolic phytochemicals that are ubiquitously distributed in the plant kingdom and confer a wealth of health-promoting benefits to human body. These compounds harbor one or more sugar moieties that are attached to various regions of the flavonoid scaffold through rigid C-C glycosidic bonds. The diverse structures of C-glycosylflavonoids are granted by the prominent reactions of flavonoid C-glycosyltransferases (CGTs). This review gives an extensive overview of CGTs that are involved in the biosynthesis of C-glycosylflavonoids, focusing on their evolutionary relationship and substrate specificity. Furthermore, structural insights into the catalytic mechanism and protein engineering of flavonoid CGTs are summarized. This review provides an important guidance for identification of novel flavonoid CGTs, biosynthesis of C-glycosylflavonoids, and elucidation of the function-structure relationship of flavonoid CGTs.
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