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首页> 外文期刊>Bulletin of the Korean Chemical Society >3D-QSAR Studies on Angiotensin-Converting Enzyme(ACE)Inhibitors:a Molecular Design in Hypertensive Agents
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3D-QSAR Studies on Angiotensin-Converting Enzyme(ACE)Inhibitors:a Molecular Design in Hypertensive Agents

机译:血管紧张素转换酶(ACE)抑制剂的3D-QSAR研究:高血压药物的分子设计

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摘要

Angiotensin-converting enzyme(ACE)is known to be primarily responsible for hypertension.Three-dimensional quantitative structure-activity relationship(3D-QSAR)models have been constructed using the comparative molecular field analysis(CoMFA)and comparative molecular similarity indices analysis(CoMSIA)for a series of 28 ACE inhibitors.The availability of ACE crystal structure(1UZF)provided the plausible biological orientation of inhibitors to ACE active site(C-domain).Alignment for CoMFA obtained by docking ligands to 1UZF protein using FlexX program showed better statistical model as compared to superposition of corresponding atoms.The statistical parameters indicate reasonable models for both CoMFA(q~2 = 0.530,r~2 = 0.998)and CoMSIA(q~2 = 0.518,r~2 = 0.990).The 3D-QSAR analyses provide valuable information for the design of ACE inhibitors with potent activity towards C-domain of ACE.The group substitutions involving the phenyl ring and carbon chain at the propionyl and sulfonyl moieties of captopril are essential for better activity against ACE.
机译:已知血管紧张素转换酶(ACE)是导致高血压的主要原因。使用比较分子场分析(CoMFA)和比较分子相似性指标分析(CoMSIA),建立了三维定量构效关系(3D-QSAR)模型)一系列28种ACE抑制剂.ACE晶体结构(1UZF)的存在提供了抑制剂对ACE活性位点(C域)的合理生物学取向。使用FlexX程序将配体与1UZF蛋白对接获得的CoMFA的比对显示出更好的统计模型与相应原子的叠加相比。统计参数表明CoMFA(q〜2 = 0.530,r〜2 = 0.998)和CoMSIA(q〜2 = 0.518,r〜2 = 0.990)的合理模型。 -QSAR分析为设计具有有效作用于ACE C结构域的ACE抑制剂提供了有价值的信息。丙酰基和磺酰基基团上的苯环和碳链的基团取代卡托普利的ES对更好地抵抗ACE至关重要。

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