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使用分子对接和模拟研究,探索Cus17的结构空间

Vikas Tiwari¹, Aditi Pathak¹, Tejaswini Poojary¹

¹National Centre for Biological Sciences (TIFR), GKVK campus, Bangalore 560065, India.

Computational and structural biotechnology journal

|August 12, 2025

概括

黄瓜蛋白质Cus17通过结合碳水化合物来保护植物. 这项研究使用计算方法揭示了更高的基托-寡糖与Cus17的相互作用,发现了稳定的结合,特别是与基托.

科学领域:

植物生物学植物生物学
生物化学生物化学
分子相互作用分子相互作用.

背景情况:

Cus17 是 *Cucumis sativus * 中的一种花蛋白,对植物防御至关重要.
Cus17将碳水化合物与昆虫外骨和真菌细胞结合在一起.
之前的研究阐明了基托 binding,但缺乏结构数据更高的基托-寡糖.

研究的目的:

通过*in-silico*方法研究较高基托-寡糖与Cus17蛋白的结合相互作用.
了解Cus17与各种碳水化合物结构相互作用的分子基础.

主要方法:

使用计算机建模和对接模拟.
分析了基托-寡糖与单体和四体Cus17的相互作用.
进行了分子动力学模拟以评估结合稳定性.

主要成果:

奇托赫普塔与正规的Cus17结合部位残留物 (Trp48,Asp50) 呈现稳定的相互作用.
较小的基托-寡糖在正规结合部位表现出不稳定性.
基托-寡糖体与Cus17四聚合物表现出持久的相互作用.
奇托与Cus17四聚合物表现出最高的结合亲和力和稳定的相互作用.

结论:

在*in-silico*分析提供了对Cus17与较高基托-寡糖糖化合物结合的见解.
这种Cus17四聚合物促进了与各种基托-寡糖化合物的稳定相互作用.
奇托里奥斯对Cus17四聚体具有最佳的结合,这突显了它在植物防御机制中的重要性.

关键词:

非正典的绑定方式橄糖橄糖橄糖蛋白质 - 配体相互作用

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