三肽
抗氧化剂
化学
阿布茨
数量结构-活动关系
生物化学
氨基酸
肽
对接(动物)
立体化学
医学
DPPH
护理部
作者
Jiayi Yin,Ya-Ning Han,Mengqi Liu,Zan-Hao Piao,Xu Zhang,Yuting Xue,Yinghua Zhang
出处
期刊:Food Chemistry
[Elsevier]
日期:2022-03-01
卷期号:373: 130999-130999
被引量:19
标识
DOI:10.1016/j.foodchem.2021.130999
摘要
Human health can be damaged by free radicals, and antioxidant peptides are excellent radical scavengers. Antioxidant tripeptides data set based on 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulofnic acid) (ABTS) assay was created, 9 types of descriptors were integrated and 4 quantitative structure-activity relationship (QSAR) models were constructed in this study. Several structural factors influencing the activity of antioxidant tripeptides and the dominant amino acids at each position of tripeptides were revealed by the optimal model. Ten food-derived tripeptides with higher activity were selected for synthesis and activity determination. Molecular docking results demonstrated that these tripeptides were stably bound to the Keap1 receptor, further elucidating the antioxidant mechanism. It was known from the simulation of gastrointestinal digestion experiments that the model results possessed a guiding effect on the selection of proteins with high antioxidant activity. The performance of the model was proved to be robust after validation.
科研通智能强力驱动
Strongly Powered by AbleSci AI