The challenge of emerging SARS-CoV-2 mutants to vaccine development.

The challenge of emerging SARS-CoV-2 mutants to vaccine development.
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DOI:
10.1016/j.jgg.2021.03.001
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发表时间:
2021-02-20
期刊:
Journal of genetics and genomics = Yi chuan xue bao
影响因子:
--
通讯作者:
Zhang H
Zhang H
中科院分区:
其他
文献类型:
--
作者:
Li R;Liu J;Zhang H

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自大流行爆发以来,由携带新突变的严重急性呼吸综合征冠状病毒2 (SARS-CoV-2)变体引起的流行病浪潮从未停止过。在全球范围内,它经历了以单核苷酸多态性(SNP)为主的快速突变,而ORF1ab和刺突基因在一年内报告的20,000多个突变位点中包含最多(Fang等人,2021)。由于刺突蛋白与病毒受体血管紧张素转换酶2 (ACE2)相互作用,介导病毒进入靶细胞,因此其突变对病毒传播和免疫逃逸的潜在影响受到高度关注。2020年初发现的D614G是一个全球显性突变(Korber et al, 2020)。2020年底,报告了几种变体,导致了大陆流行病,最终导致了全球流行病。这些值得注意的变体包括B. 1.1。7血统(501Y)V1,关注变量[VOC] 202012/01), 501Y。V2变体(称为B. 1.351谱系)和P. 1谱系(也称为501Y)。V3)。与2020年初鉴定的D614G和D614谱系相比,它们在刺突蛋白内含有大量突变(图1)。
Since the outbreak of the pandemic, waves of epidemics caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants that harbor novel mutations have never paused. Globally, it undergoes rapid mutations that involve single-nucleotide polymorphism (SNP) dominantly, whereas ORF1ab and spike genes contain the most of more than 20,000 mutation sites reported within a year (Fang et al., 2021). Mutations inside spike protein are highly concerned for their potential impact on viral transmissibility and immune evasion, as spike protein is responsible for the interaction with the viral receptor angiotensin-converting enzyme 2 (ACE2) to mediate viral entry to the target cells. D614G identified in early 2020 is a globally dominant mutation (Korber et al., 2020). In late 2020, several variants were reported, which had caused continental and eventually worldwide epidemics. These notable variants include B. 1.1. 7 lineage (501Y. V1, Variant of Concern [VOC] 202012/01), 501Y. V2 variant (known as B. 1.351 lineage), and P. 1 lineage (also named 501Y. V3). In comparison with the D614G and D614 lineages identified in early 2020, they contain a large number of mutations within spike protein (Fig. 1).
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