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Basic Characteristics of Mutations
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Mutation Site
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C10809T |
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Mutation Site Sentence
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C10809T disappeared after P0 in Beta, reappearing in 1/3 animals in P17 (Supplemental Fig. 3). |
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Mutation Level
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Nucleotide level |
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Mutation Type
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Nonsynonymous substitution |
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Gene/Protein/Region
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ORF1ab |
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Standardized Encoding Gene
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ORF1ab
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Genotype/Subtype
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Beta |
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Viral Reference
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NC_045512.2
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Functional Impact and Mechanisms
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Disease
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COVID-19
Cell line
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Immune
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Y |
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Target Gene
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HDAC2
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Clinical and Epidemiological Correlations
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Clinical Information
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- |
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Treatment
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- |
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Location
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- |
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Literature Information
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PMID
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38365933
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Title
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SARS-CoV-2 rapidly evolves lineage-specific phenotypic differences when passaged repeatedly in immune-naive mice
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Author
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Willett JDS,Gravel A,Dubuc I,Gudimard L,Dos Santos Pereira Andrade AC,Lacasse E,Fortin P,Liu JL,Cervantes JA,Galvez JH,Djambazian HHV,Zwaig M,Roy AM,Lee S,Chen SH,Ragoussis J,Flamand L
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Journal
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Communications biology
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Journal Info
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2024 Feb 16;7(1):191
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Abstract
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The persistence of SARS-CoV-2 despite the development of vaccines and a degree of herd immunity is partly due to viral evolution reducing vaccine and treatment efficacy. Serial infections of wild-type (WT) SARS-CoV-2 in Balb/c mice yield mouse-adapted strains with greater infectivity and mortality. We investigate if passaging unmodified B.1.351 (Beta) and B.1.617.2 (Delta) 20 times in K18-ACE2 mice, expressing the human ACE2 receptor, in a BSL-3 laboratory without selective pressures, drives human health-relevant evolution and if evolution is lineage-dependent. Late-passage virus causes more severe disease, at organism and lung tissue scales, with late-passage Delta demonstrating antibody resistance and interferon suppression. This resistance co-occurs with a de novo spike S371F mutation, linked with both traits. S371F, an Omicron-characteristic mutation, is co-inherited at times with spike E1182G per Nanopore sequencing, existing in different within-sample viral variants at others. Both S371F and E1182G are linked to mammalian GOLGA7 and ZDHHC5 interactions, which mediate viral-cell entry and antiviral response. This study demonstrates SARS-CoV-2's tendency to evolve with phenotypic consequences, its evolution varying by lineage, and suggests non-dominant quasi-species contribution.
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Sequence Data
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-
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