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Structure activity relationship (SAR) and quantitative structure activity relationship (QSAR) studies showed plant flavonoids as potential inhibitors of dengue NS2B-NS3 protease.
BMC Structural Biology Pub Date : 2018-04-19 , DOI: 10.1186/s12900-018-0084-5
Muhammad Waseem Sarwar 1 , Adeel Riaz 1 , Syed Muhammad Raihan Dilshad 2 , Ahmed Al-Qahtani 3, 4, 5 , Muhammad Shah Nawaz-Ul-Rehman 1 , Muhammad Mubin 1
Affiliation  

BACKGROUND Due to dengue virus disease, half of the world population is at severe health risk. Viral encoded NS2B-NS3 protease complex causes cleavage in the nonstructural region of the viral polyprotein. The cleavage is essentially required for fully functional viral protein. It has already been reported that if function of NS2B-NS3 complex is disrupted, viral replication is inhibited. Therefore, the NS2B-NS3 is a well-characterized target for designing antiviral drug. RESULTS In this study docking analysis was performed with active site of dengue NS2B-NS3 protein with selected plant flavonoids. More than 100 flavonoids were used for docking analysis. On the basis of docking results 10 flavonoids might be considered as the best inhibitors of NS2B-NS3 protein. The interaction studies showed resilient interactions between ligand and receptor atoms. Furthermore, QSAR and SAR studies were conducted on the basis of NS2B-NS3 protease complex docking results. The value of correlation coefficient (r) 0.95 shows that there was a good correlation between flavonoid structures and selected properties. CONCLUSION We hereby suggest that plant flavonoids could be used as potent inhibitors of dengue NS2B-NS3 protein and can be used as antiviral agents against dengue virus. Out of more than hundred plant flavonoids, ten flavonoid structures are presented in this study. On the basis of best docking results, QSAR and SAR studies were performed. These flavonoids can directly work as anti-dengue drug or with little modifications in their structures.

中文翻译:

结构活性关系(SAR)和定量结构活性关系(QSAR)研究表明,植物类黄酮是登革热NS2B-NS3蛋白酶的潜在抑制剂。

背景技术由于登革热病毒疾病,全世界一半的人口处于严重的健康风险中。病毒编码的NS2B-NS3蛋白酶复合物在病毒多蛋白的非结构区引起切割。裂解是功能完整的病毒蛋白所必需的。已经报道,如果NS2B-NS3复合物的功能被破坏,则病毒复制被抑制。因此,NS2B-NS3是设计抗病毒药物的特征明确的靶标。结果在本研究中,对登革热NS2B-NS3蛋白与选定植物类黄酮的活性位点进行了对接分析。100多种类黄酮用于对接分析。根据对接结果,可将10种黄酮类化合物视为NS2B-NS3蛋白的最佳抑制剂。相互作用研究表明配体和受体原子之间具有弹性相互作用。此外,基于NS2B-NS3蛋白酶复合物对接结果进行了QSAR和SAR研究。相关系数(r)为0.95,表明类黄酮结构与所选特性之间具有良好的相关性。结论我们在此建议植物类黄酮可用作登革热NS2B-NS3蛋白的有效抑制剂,并可用作抗登革热病毒的抗病毒剂。在这项研究中,从一百多种植物类黄酮中提出了十种类黄酮结构。在最佳对接结果的基础上,进行了QSAR和SAR研究。这些类黄酮可以直接用作抗登革热药物或对其结构进行少量修饰。95显示类黄酮结构与所选特性之间具有良好的相关性。结论我们在此建议植物类黄酮可用作登革热NS2B-NS3蛋白的有效抑制剂,并可用作抗登革热病毒的抗病毒剂。在这项研究中,从一百多种植物类黄酮中提出了十种类黄酮结构。在最佳对接结果的基础上,进行了QSAR和SAR研究。这些类黄酮可以直接用作抗登革热药物或对其结构进行少量修饰。95显示类黄酮结构与所选特性之间具有良好的相关性。结论我们在此建议植物类黄酮可用作登革热NS2B-NS3蛋白的有效抑制剂,并可用作抗登革热病毒的抗病毒剂。在这项研究中,从一百多种植物类黄酮中提出了十种类黄酮结构。根据最佳对接结果,进行了QSAR和SAR研究。这些类黄酮可以直接用作抗登革热药物或对其结构进行少量修饰。这项研究提出了十种类黄酮结构。在最佳对接结果的基础上,进行了QSAR和SAR研究。这些类黄酮可以直接用作抗登革热药物或对其结构进行少量修饰。这项研究提出了十种类黄酮结构。根据最佳对接结果,进行了QSAR和SAR研究。这些类黄酮可以直接用作抗登革热药物或对其结构进行少量修饰。
更新日期:2018-04-19
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