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Basic Characteristics of Mutations
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Mutation Site
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T19I |
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Mutation Site Sentence
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Finally, Spike T19I, which is also now found in the Omicron BA.2 sublineage, arose after treatment with Bamlanivimab. |
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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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Omicron(BA.2) |
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Viral Reference
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MN908947.3
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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
|
Y |
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Treatment
|
- |
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Location
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- |
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Literature Information
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PMID
|
37692895
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Title
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Evolution of a globally unique SARS-CoV-2 Spike E484T monoclonal antibody escape mutation in a persistently infected, immunocompromised individual
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Author
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Halfmann PJ,Minor NR,Haddock Iii LA,Maddox R,Moreno GK,Braun KM,Baker DA,Riemersa KK,Prasad A,Alman KJ,Lambert MC,Florek K,Bateman A,Westergaard R,Safdar N,Andes DR,Kawaoka Y,Fida M,Yao JD,Friedrich TC,O'Connor DH
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Journal
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Virus evolution
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Journal Info
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2022 Nov 5;9(2):veac104
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Abstract
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Prolonged infections in immunocompromised individuals may be a source for novel Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) variants, particularly when both the immune system and antiviral therapy fail to clear the infection and enable within-host evolution. Here we describe a 486-day case of SARS-CoV-2 infection in an immunocompromised individual. Following monotherapy with the monoclonal antibody Bamlanivimab, the individual's virus acquired resistance, likely via the earliest known occurrence of Spike amino acid variant E484T. Recently, E484T has arisen again as a derivative of E484A in the Omicron Variant of Concern, supporting the hypothesis that prolonged infections can give rise to novel variants long before they become prevalent in the human population.
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Sequence Data
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-
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