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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 7
BKCSDE 32(7)
July 20, 2011 

 
Title
Epigallocatechin 3-gallate Binds to Human Salivary α-Amylase with Complex Hydrogen Bonding Interactions
Author
Jee-Young Lee, Ki-Woong Jeong, Yangmee Kim*
Keywords
EGCG, EGC, Amylase, Flavonoids, Docking
Abstract
Amylase is a digestive enzyme that catalyses the starch into sugar. It has been reported that the green tea flavonoid (or polyphenols) (−)-epigallocatechin 3-gallate (EGCG) inhibits human salivary α-amylase (HSA) and induced anti-nutritional effects. In this study, we performed docking study for seven EGCG-like flavonoids and HSA to understand the interaction mechanism of HSA and EGCG and suggest new possible flavonoid inhibitors of HSA. As a result, EGCG and (–)-epicatechin gallate (ECG) bind to HSA with complex hydrogen bonding interactions. These hydrogen bonding interactions are important for inhibitory activity of EGCG against HSA. We suggested that ECG can be a potent inhibitor of HSA. This study will be helpful to understand the mechanism of inhibition of HSA by EGCG and give insights to develop therapeutic strategies against diabetes.
Page
2222 - 2226
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