Suppr超能文献

作为HIV-1蛋白酶抑制剂的富勒烯衍生物的定量构效关系及对接计算

The QSAR and docking calculations of fullerene derivatives as HIV-1 protease inhibitors.

作者信息

Saleh Noha A

机构信息

Biophysics Department, Faculty of Science, University of Cairo, Giza, Egypt.

出版信息

Spectrochim Acta A Mol Biomol Spectrosc. 2015 Feb 5;136 Pt C:1523-9. doi: 10.1016/j.saa.2014.10.045. Epub 2014 Oct 30.

Abstract

The inhibition of HIV-1 protease is considered as one of the most important targets for drug design and the deactivation of HIV-1. In the present work, the fullerene surface (C60) is modified by adding oxygen atoms as well as hydroxymethylcarbonyl (HMC) groups to form 6 investigated fullerene derivative compounds. These compounds have one, two, three, four or five O atoms+HMC groups at different positions on phenyl ring. The effect of the repeating of these groups on the ability of suggested compounds to inhibit the HIV protease is studied by calculating both Quantitative Structure Activity Relationship (QSAR) properties and docking simulation. Based on the QSAR descriptors, the solubility and the hydrophilicity of studied fullerene derivatives increased with increasing the number of oxygen atoms+HMC groups in the compound. While docking calculations indicate that, the compound with two oxygen atoms+HMC groups could interact and binds with HIV-1 protease active site. This is could be attributed to the active site residues of HIV-1 protease are hydrophobic except the two aspartic acids. So that, the increase in the hydrophilicity and polarity of the compound is preventing and/or decreasing the hydrophobic interaction between the compound and HIV-1 protease active site.

摘要

抑制HIV-1蛋白酶被认为是药物设计和使HIV-1失活的最重要靶点之一。在本研究中,通过添加氧原子以及羟甲基羰基(HMC)基团对富勒烯表面(C60)进行修饰,以形成6种被研究的富勒烯衍生物化合物。这些化合物在苯环的不同位置含有一个、两个、三个、四个或五个氧原子+HMC基团。通过计算定量构效关系(QSAR)性质和对接模拟,研究了这些基团的重复对所建议化合物抑制HIV蛋白酶能力的影响。基于QSAR描述符,所研究的富勒烯衍生物的溶解度和亲水性随着化合物中氧原子+HMC基团数量的增加而增加。而对接计算表明,含有两个氧原子+HMC基团的化合物能够与HIV-1蛋白酶活性位点相互作用并结合。这可能归因于HIV-1蛋白酶的活性位点残基除了两个天冬氨酸外都是疏水的。因此,化合物亲水性和极性的增加会阻止和/或减少化合物与HIV-1蛋白酶活性位点之间的疏水相互作用。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验