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Basic Characteristics of Mutations
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Mutation Site
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Y91A |
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Mutation Site Sentence
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Mutagenesis of the LCDR3 similarly resulted in notable reduction in binding observed for Tyr91Ala and Arg96Ala substitutions, although neither of these residues directly contacted the RBD. |
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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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Standardized Encoding Gene
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Genotype/Subtype
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B.1.1.7;B.1.351;P.1;B.1.429;B.1.526;B.1.617.1;B.1.617.2 |
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Viral Reference
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KT444582;AY278554;AY278741;AY515512;AY525636;KC881005;KC881006;KF367457;MK211376;MN908947;MN996532;MG772933;MG772934;MK211374;DQ412042;DQ648856;MK211378;DQ022305;DQ412043;DQ648857;DQ071615;MK211375;MK211377
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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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- |
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Literature Information
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PMID
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34726473
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Title
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A broadly cross-reactive antibody neutralizes and protects against sarbecovirus challenge in mice
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Author
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Martinez DR,Schafer A,Gobeil S,Li D,De la Cruz G,Parks R,Lu X,Barr M,Stalls V,Janowska K,Beaudoin E,Manne K,Mansouri K,Edwards RJ,Cronin K,Yount B,Anasti K,Montgomery SA,Tang J,Golding H,Shen S,Zhou T,Kwong PD,Graham BS,Mascola JR,Montefiori DC,Alam SM,Sempowski G,Sempowski GD,Khurana S,Wiehe K,Saunders KO,Acharya P,Haynes BF,Baric RS
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Journal
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Science translational medicine
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Journal Info
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2022 Jan 26;14(629):eabj7125
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Abstract
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Severe acute respiratory syndrome coronaviruses 1 (SARS-CoV) and 2 (SARS-CoV-2), including SARS-CoV-2 variants of concern, can cause deadly infections. The mortality associated with sarbecovirus infection underscores the importance of developing broadly effective countermeasures against them, which could be key in the prevention and mitigation of current and future zoonotic events. Here, we demonstrate the neutralization of SARS-CoV; bat coronaviruses WIV-1 and RsSHC014; and SARS-CoV-2 variants D614G, B.1.1.7, B.1.351, P.1, B.1.429, B.1.526, B.1.617.1, and B.1.617.2 by a receptor binding domain (RBD)-specific human antibody, DH1047. Prophylactic and therapeutic treatment with DH1047 was protective against SARS-CoV, WIV-1, RsSHC014, and SARS-CoV-2 B.1.351 infection in mice. Binding and structural analysis showed high affinity binding of DH1047 to an epitope that is highly conserved among sarbecoviruses. Thus, DH1047 is a broadly protective antibody that can prevent infection and mitigate outbreaks caused by SARS-related strains and SARS-CoV-2 variants. Our results also suggest that the conserved RBD epitope bound by DH1047 is a rational target for a universal sarbecovirus vaccine.
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Sequence Data
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-
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