调控大鼠烯碳水化合物受体的分子相互作用 多环芳香化合物的活性和预测模型开发
Lingmin Jin1,2, Bangyu Chen1, Guangcai Ma1
1College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
Molecules (Basel, Switzerland)
|October 16, 2024
概括
多环芳香化合物 (PAC) 与老鼠的酸受体 (rAhR) 相互作用. 这项研究确定了驱动这些相互作用的关键残留物和分子力量,有助于风险评估.
科学领域:
- 环境化学环境化学
- 毒理学 毒理学 毒理学
- 计算化学的计算化学
背景情况:
- 多环芳香化合物 (PAC) 具有老鼠的酸受体 (rAhR) 活性,影响生物和毒理结果.
- 了解PAC-rAhR相互作用的分子基础对于评估它们的环境命运和风险至关重要.
研究的目的:
- 研究关键的氨基酸残留物和调控PACs的rAhR活性的分子相互作用.
- 开发定量结构-活动关系 (QSAR) 模型来预测PAC-rAhR活动.
主要方法:
- 采用了包括同质模型,分子对接和分子动力学模拟在内的in silico策略.
- 开发了QSAR模型,以预测非化和化PACs的rAhR活性.
- 对结合能,关键相互作用残留物 (Pro295,Arg316) 和主导力 (范德瓦尔斯) 的分析.
主要成果:
- 对于PAC-rAhR复合物的结合能量在 -7.37 到 -26.39 kcal/mol之间.
- 范德瓦尔斯力是分子相互作用的主要贡献者.
- 在大多数PAC-rAhR复合物中,Pro295和Arg316被确定为关键残留物.
- 开发的QSAR模型显示出良好的预测能力,稳定性和外推能力.
- 分子极化性,电负性,大小和核友性是影响rAhR活动的关键因素.
结论:
- 这项研究阐明了PAC-rAhR活性背后的分子机制和相互作用.
- 开发的QSAR模型可以预测新型PACs的rAhR活性,有助于风险评估.
- 这项研究为PACs的毒理潜力和环境行为提供了宝贵的见解.
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