A Potential SARS-CoV-2 Variant of Interest (VOI) Harboring Mutation E484K in the Spike Protein Was Identified within Lineage B.1.1.33 Circulating in Brazil.
Viruses
; 13(5)2021 04 21.
Article
en En
| MEDLINE
| ID: mdl-33919314
ABSTRACT
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic in Brazil was dominated by two lineages designated as B.1.1.28 and B.1.1.33. The two SARS-CoV-2 variants harboring mutations at the receptor-binding domain of the Spike (S) protein, designated as lineages P.1 and P.2, evolved from lineage B.1.1.28 and are rapidly spreading in Brazil. Lineage P.1 is considered a Variant of Concern (VOC) because of the presence of multiple mutations in the S protein (including K417T, E484K, N501Y), while lineage P.2 only harbors mutation SE484K and is considered a Variant of Interest (VOI). On the other hand, epidemiologically relevant B.1.1.33 deriving lineages have not been described so far. Here we report the identification of a new SARS-CoV-2 VOI within lineage B.1.1.33 that also harbors mutation SE484K and was detected in Brazil between November 2020 and February 2021. This VOI displayed four non-synonymous lineage-defining mutations (NSP3A1711V, NSP6F36L, SE484K, and NS7bE33A) and was designated as lineage N.9. The VOI N.9 probably emerged in August 2020 and has spread across different Brazilian states from the Southeast, South, North, and Northeast regions.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Glicoproteína de la Espiga del Coronavirus
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SARS-CoV-2
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COVID-19
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Mutación
Límite:
Humans
País como asunto:
America do sul
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Brasil
Idioma:
En
Año:
2021
Tipo del documento:
Article