使用MCSS来设计小目标库:应用到picornavirus连接体
D Joseph-McCarthy1, S K Tsang, D J Filman
1Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115, USA.
Journal of the American Chemical Society
|December 26, 2001
概括
通过计算方法成功设计了抗皮科纳病毒囊结合联体. 这项研究验证了基于结构的药物设计,强调了蛋白质灵活性在抗病毒疗法的计算建模中的重要性.
科学领域:
- 计算化学和结构生物学
- 抗病毒药物发现的发现.
- 分子建模分子建模
背景情况:
- 抗冠状病毒疗法对于治疗由脊髓灰质炎病毒和犀牛病毒引起的感染至关重要.
- 基于结构的药物设计为开发新型抗病毒药物提供了合理的方法.
- 了解体-蛋白相互作用在体结合口袋是设计有效抑制剂的关键.
研究的目的:
- 使用计算方法设计和合成基于结构的抗冠状病毒囊结合联体的组合图书馆.
- 为了验证多副本同时搜索 (MCSS) 程序在预测连接体结合位点方面的准确性.
- 评估蛋白质灵活性对药物设计计算对接结果的影响.
主要方法:
- 利用多副本同时搜索 (MCSS) 程序在脊髓灰质炎病毒和犀牛病毒体结构上生成不同功能组的功能地图.
- 基于MCSS的预测,设计和合成了三单体化合物的小型组合库.
- 采用非细胞基质谱,免疫沉测定和晶体分析来证明和验证联体结合.
主要成果:
- 在MCSS计算中,准确地预测了设计的配体的结合位点,在一个配体中正确识别了所有三个单体单位,在另一个配体中确定了三分之二.
- 实验分析证实了合成的配体与病毒囊的结合.
- 将蛋白质灵活性纳入MCSS计算,提高了预测带结合位置的准确性.
结论:
- 使用的计算方法被验证用于设计基于结构的抗皮科纳病毒连接体.
- 微妙的蛋白质结构变化显著影响对接结果,强调需要考虑目标灵活性.
- 该研究强调了在计算药物设计过程中包括连接体和标灵活性的重要性,以提高准确性和有效性.
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