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Basic Characteristics of Mutations
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Mutation Site
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G662S |
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Mutation Site Sentence
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Orf1B:G662S enhances replication possibly by contributing to the stability of the replication complex and may enhance viral fitness. |
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Mutation Level
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Amino acid level |
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Mutation Type
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Nonsynonymous substitution |
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Gene/Protein/Region
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ORF1b |
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Standardized Encoding Gene
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ORF1b
|
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Genotype/Subtype
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- |
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Viral Reference
|
-
|
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Functional Impact and Mechanisms
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Disease
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COVID-19
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Immune
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- |
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Target Gene
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-
|
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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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Location
|
- |
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Literature Information
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PMID
|
40100755
|
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Title
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A Phylogenetic Method Identifies Candidate Drivers of the Evolution of the SARS-CoV-2 Mutation Spectrum
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Author
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Corbett-Detig R
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Journal
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Molecular biology and evolution
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Journal Info
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2025 Apr 1;42(4):msaf059
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Abstract
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The molecular processes that generate new mutations evolve, but the causal mechanisms are largely unknown. In particular, the relative rates of mutation types (e.g. C > T), the mutation spectrum, sometimes vary among closely related species and populations. I present an algorithm for subdividing a phylogeny into distinct mutation spectra. By applying this approach to a SARS-CoV-2 phylogeny comprising approximately 8 million genome sequences, I identify ten shifts in the mutation spectrum. I find strong enrichment consistent with candidate causal amino-acid substitutions in the SARS-CoV-2 polymerase, and strikingly three appearances of the same homoplasious substitution are each associated with decreased C > T relative mutation rates. With rapidly growing genomic datasets, this approach and future extensions promise new insights into the mechanisms of the evolution of mutational processes. Keywords: Mutation Spectrum; Phylogenetic Analysis; SARS-CoV-2 Evolution.
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Sequence Data
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-
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