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Basic Characteristics of Mutations
|
|
Mutation Site
|
F490S |
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Mutation Site Sentence
|
F490S contributed more than L452Q in affecting the neutralization. |
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Mutation Level
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Amino acid level |
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Mutation Type
|
Nonsynonymous substitution |
|
Gene/Protein/Region
|
S |
|
Standardized Encoding Gene
|
S
|
|
Genotype/Subtype
|
Lambda |
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Viral Reference
|
-
|
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Functional Impact and Mechanisms
|
|
Disease
|
COVID-19
|
|
Immune
|
- |
|
Target Gene
|
-
|
|
Clinical and Epidemiological Correlations
|
|
Clinical Information
|
- |
|
Treatment
|
- |
|
Location
|
- |
|
Literature Information
|
|
PMID
|
35461042
|
|
Title
|
Increased resistance of SARS-CoV-2 Lambda variant to antibody neutralization
|
|
Author
|
Guo H,Fan Q,Song S,Shen S,Zhou B,Wang H,Cheng L,Ge X,Ju B,Zhang Z
|
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Journal
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Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology
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Journal Info
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2022 Jun;150-151:105162
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Abstract
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A recently identified SARS-CoV-2 variant, Lambda, has spread to many countries around the world. Here, we measured and evaluated the reduced sensitivity of Lambda variant to the neutralization by plasma polyclonal antibodies elicited by the natural SARS-CoV-2 infection and inactivated vaccine. The combination of two substitutions appearing in the RBD of spike protein (L452Q and F490S) resulted in noticeably reduced neutralization against Lambda variant. F490S contributed more than L452Q in affecting the neutralization. In addition, the neutralization test with 12 published nAbs binding to RBD of SARS-CoV-2 with defined structures suggested that Lambda variant resisted the neutralization by some antibodies from Class 2 and Class 3. Overall, these results suggest that pre-existing antibody neutralization established by natural infection from non-Lambda variants or immunization could be significantly decreased, re-emphasizing the importance of ongoing viral mutation monitoring.
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Sequence Data
|
-
|