期刊
INFECTION GENETICS AND EVOLUTION
卷 94, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.meegid.2021.105013
关键词
SARS-CoV-2; COVID-19; Spike protein; E484K; R; 1; Mutation of concern; Immune escape; Spatiotemporal distribution
资金
- Japan Agency for Medical Research and the Development Research Program on Emerging and Re-emerging Infectious Diseases [JP20fk0108103, JP19fk0108104]
- Ministry of Health, Labor, and Welfare, Japan [20HA2007]
Three waves of COVID-19 in Japan have been characterized by distinct PANGO lineages, with the E484K mutation in the spike protein of the R.1 lineage showing up to 40% predominance. It is essential to pay attention to potential variants to prevent the emergence of mutants, highlighting the importance of real-time genome surveillance in containing COVID-19 clusters.
Three COVID-19 waves in Japan have been characterized by the presence of distinct PANGO lineages (B.1.1. 162, B.1.1.284, and B.1.1.214). Recently, in addition to the B.1.1.7 lineage, which shows 25% abundance, an R.1 lineage carrying the E484K mutation in the spike protein was found to show up to 40% predominance. E484K could be a pivotal amino acid substitution with the potential to mediate immune escape; thus, more attention should be paid to such potential variants of concern to avoid the emergence of mutants of concern. Such comprehensive real-time genome surveillance has become essential for the containment of COVID-19 clusters.
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