计算机模拟分析显示,新冠病毒(SARS-CoV-2)的C241T变体与宿主复制因子MADP1和hnRNP-1的转录效率较低。

In-Silico analysis reveals lower transcription efficiency of C241T variant of SARS-CoV-2 with host replication factors MADP1 and hnRNP-1.

作者信息

Chaudhari Armi, Chaudhari Minal, Mahera Sapna, Saiyed Zuber, Nathani Neelam M, Shukla Shantanu, Patel Dhaval, Patel Chirag, Joshi Madhvi, Joshi Chaitanya G

机构信息

Gujarat Biotechnology Research Centre (GBRC), Sector- 11, Gandhinagar - 382011, Gujarat, India.

Genome Science and Technology, The University of Tennessee, Knoxville, TN - 37996, United States.

出版信息

Inform Med Unlocked. 2021;25:100670. doi: 10.1016/j.imu.2021.100670. Epub 2021 Jul 21.

Abstract

Novel severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) has claimed more than 3.3 million lives worldwide and still counting. As per the GISAID database, the genomics of SARS-CoV-2 has been extensively studied, with more than 500 genome submissions per day. Out of several hotspot mutations within the SARS-CoV-2 genome, recent research has focused mainly on the missense variants. Moreover, significantly less attention has been accorded to delineate the role of the untranslated regions (UTRs) of the SARS-CoV-2 genome in the disease progression and etiology. One of the most frequent 5' UTR variants in the SARS-CoV-2 genome is the C241T, with a global frequency of more than 95 %. In the present study, the effect of the C241T mutation has been studied with respect to the changes in RNA structure and its interaction with the host replication factors MADP1 Zinc finger CCHC-type and RNA-binding motif 1 (hnRNP1). The results obtained from molecular docking and molecular dynamics simulation indicated weaker interaction of C241T mutant stem-loops with the host transcription factor MADP1, indicating a reduced replication efficiency. The results are also correlated with increased recovery rates and decreased death rates of global SARS-CoV-2 cases.

摘要

新型严重急性呼吸综合征冠状病毒2(SARS-CoV-2)已在全球夺走了超过330万人的生命,且仍在增加。根据全球共享流感数据倡议组织(GISAID)数据库,SARS-CoV-2的基因组学已得到广泛研究,每天有超过500份基因组提交。在SARS-CoV-2基因组内的几个热点突变中,近期研究主要集中在错义变异上。此外,对于阐明SARS-CoV-2基因组非翻译区(UTR)在疾病进展和病因学中的作用,关注明显较少。SARS-CoV-2基因组中最常见的5'UTR变异之一是C241T,全球频率超过95%。在本研究中,针对C241T突变对RNA结构变化及其与宿主复制因子MADP1锌指CCHC型和RNA结合基序1(hnRNP1)相互作用的影响进行了研究。分子对接和分子动力学模拟结果表明,C241T突变茎环与宿主转录因子MADP1的相互作用较弱,表明复制效率降低。这些结果也与全球SARS-CoV-2病例的康复率上升和死亡率下降相关。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1383/8294647/e103226fa23d/gr1_lrg.jpg

相似文献

引用本文的文献

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