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Basic Characteristics of Mutations
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Mutation Site
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W672L |
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Mutation Site Sentence
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Fig. 2. V2-apex targeting plasma nAbs predominate in HIV-1 infected infants. |
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Mutation Level
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Amino acid level |
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Mutation Type
|
Nonsynonymous substitution |
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Gene/Protein/Region
|
Env |
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Standardized Encoding Gene
|
Env
|
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Genotype/Subtype
|
HIV-1 |
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Viral Reference
|
AF067155.1
|
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Functional Impact and Mechanisms
|
|
Disease
|
HIV Infections
|
|
Immune
|
- |
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Target Gene
|
-
|
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Clinical and Epidemiological Correlations
|
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Clinical Information
|
- |
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Treatment
|
Env |
|
Location
|
India |
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Literature Information
|
|
PMID
|
32879304
|
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Title
|
Broadly neutralizing plasma antibodies effective against autologous circulating viruses in infants with multivariant HIV-1 infection
|
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Author
|
Mishra N,Sharma S,Dobhal A,Kumar S,Chawla H,Singh R,Makhdoomi MA,Das BK,Lodha R,Kabra SK,Luthra K
|
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Journal
|
Nature communications
|
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Journal Info
|
2020 Sep 2;11(1):4409
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Abstract
|
Broadly neutralizing antibodies (bnAbs) develop in a subset of HIV-1 infected individuals over 2-3 years of infection. Infected infants develop plasma bnAbs frequently and as early as 1-year post-infection suggesting factors governing bnAb induction in infants are distinct from adults. Understanding viral characteristics in infected infants with early bnAb responses will provide key information about antigenic triggers driving B cell maturation pathways towards induction of bnAbs. Herein, we evaluate the presence of plasma bnAbs in a cohort of 51 HIV-1 clade-C infected infants and identify viral factors associated with early bnAb responses. Plasma bnAbs targeting V2-apex on the env are predominant in infant elite and broad neutralizers. Circulating viral variants in infant elite neutralizers are susceptible to V2-apex bnAbs. In infant elite neutralizers, multivariant infection is associated with plasma bnAbs targeting diverse autologous viruses. Our data provides information supportive of polyvalent vaccination approaches capable of inducing V2-apex bnAbs against HIV-1.
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Sequence Data
|
MN703343-MN703404;?MT366192-MT366197.
|