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Basic Characteristics of Mutations
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Mutation Site
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A117T |
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Mutation Site Sentence
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Recently, we demonstrated that direct transmission of ZIKV between vertebrate hosts leads to rapid adaptation resulting in enhanced virulence in mice and the emergence of three amino acid substitutions (NS2A-A117V, NS2A-A117T, and NS4A-E19G) shared among all vertebrate-passaged lineages. |
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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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NS2A |
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Standardized Encoding Gene
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NS2A
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Genotype/Subtype
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- |
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Viral Reference
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PRVABC59
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Functional Impact and Mechanisms
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Disease
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Cell line
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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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- |
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Location
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Puerto Rico |
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Literature Information
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PMID
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37800949
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Title
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Gain without pain: adaptation and increased virulence of Zika virus in vertebrate host without fitness cost in mosquito vector
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Author
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Jaeger AS,Marano J,Riemersma KK,Castaneda D,Pritchard EM,Pritchard JC,Bohm EK,Baczenas JJ,O'Connor SL,Weger-Lucarelli J,Friedrich TC,Aliota MT
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Journal
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Journal of virology
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Journal Info
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2023 Oct 31;97(10):e0116223
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Abstract
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Previously, we modeled direct transmission chains of Zika virus (ZIKV) by serially passaging ZIKV in mice and mosquitoes and found that direct mouse transmission chains selected for viruses with increased virulence in mice and the acquisition of non-synonymous amino acid substitutions. Here, we show that these same mouse-passaged viruses also maintain fitness and transmission capacity in mosquitoes. We used infectious clone-derived viruses to demonstrate that the substitution in nonstructural protein 4A contributes to increased virulence in mice.
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Sequence Data
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PRJNA1009075
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