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Basic Characteristics of Mutations
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Mutation Site
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D614G |
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Mutation Site Sentence
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The SARS-CoV-2 does not appear to present a mutational "hot spot" as only the D614G mutation has been identified from clinical isolates. |
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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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S |
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Standardized Encoding Gene
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S
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Genotype/Subtype
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- |
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Viral Reference
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-
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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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- |
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Location
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- |
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Literature Information
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PMID
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33105685
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Title
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Viewpoint: Origin of SARS-CoV-2
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Author
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Lundstrom K,Seyran M,Pizzol D,Adadi P,Mohamed Abd El-Aziz T,Hassan SS,Soares A,Kandimalla R,Tambuwala MM,Aljabali AAA,Kumar Azad G,Pal Choudhury P,Uversky VN,Sherchan SP,Uhal BD,Rezaei N,Brufsky AM
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Journal
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Viruses
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Journal Info
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2020 Oct 22;12(11):1203
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Abstract
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The origin of the severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) virus causing the COVID-19 pandemic has not yet been fully determined. Despite the consensus about the SARS-CoV-2 origin from bat CoV RaTG13, discrepancy to host tropism to other human Coronaviruses exist. SARS-CoV-2 also possesses some differences in its S protein receptor-binding domain, glycan-binding N-terminal domain and the surface of the sialic acid-binding domain. Despite similarities based on cryo-EM and biochemical studies, the SARS-CoV-2 shows higher stability and binding affinity to the ACE2 receptor. The SARS-CoV-2 does not appear to present a mutational ""hot spot"" as only the D614G mutation has been identified from clinical isolates. As laboratory manipulation is highly unlikely for the origin of SARS-CoV-2, the current possibilities comprise either natural selection in animal host before zoonotic transfer or natural selection in humans following zoonotic transfer. In the former case, despite SARS-CoV-2 and bat RaTG13 showing 96% identity some pangolin Coronaviruses exhibit very high similarity to particularly the receptor-binding domain of SARS-CoV-2. In the latter case, it can be hypothesized that the SARS-CoV-2 genome has adapted during human-to-human transmission and based on available data, the isolated SARS-CoV-2 genomes derive from a common origin. Before the origin of SARS-CoV-2 can be confirmed additional research is required.
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Sequence Data
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-
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