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Basic Characteristics of Mutations
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Mutation Site
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E393D |
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Mutation Site Sentence
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In both animals, the circulating viruses contained mutations in the EDIII (K394R in one animal and E393D or K394R in the other) (Figures 1B and 1C). |
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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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EDIII |
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Standardized Encoding Gene
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envelope
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Genotype/Subtype
|
- |
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Viral Reference
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KU321639.1
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Functional Impact and Mechanisms
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Disease
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Cell line
|
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Immune
|
Y |
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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
|
- |
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Location
|
- |
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Literature Information
|
|
PMID
|
30403995
|
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Title
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A Combination of Two Human Monoclonal Antibodies Prevents Zika Virus Escape Mutations in Non-human Primates
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Author
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Keeffe JR,Van Rompay KKA,Olsen PC,Wang Q,Gazumyan A,Azzopardi SA,Schaefer-Babajew D,Lee YE,Stuart JB,Singapuri A,Watanabe J,Usachenko J,Ardeshir A,Saeed M,Agudelo M,Eisenreich T,Bournazos S,Oliveira TY,Rice CM,Coffey LL,MacDonald MR,Bjorkman PJ,Nussenzweig MC,Robbiani DF
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Journal
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Cell reports
|
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Journal Info
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2018 Nov 6;25(6):1385-1394
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Abstract
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Zika virus (ZIKV) causes severe neurologic complications and fetal aberrations. Vaccine development is hindered by potential safety concerns due to antibody cross-reactivity with dengue virus and the possibility of disease enhancement. In contrast, passive administration of anti-ZIKV antibodies engineered to prevent enhancement may be safe and effective. Here, we report on human monoclonal antibody Z021, a potent neutralizer that recognizes an epitope on the lateral ridge of the envelope domain III (EDIII) of ZIKV and is protective against ZIKV in mice. When administered to macaques undergoing a high-dose ZIKV challenge, a single anti-EDIII antibody selected for resistant variants. Co-administration of two antibodies, Z004 and Z021, which target distinct sites on EDIII, was associated with a delay and a 3- to 4-log decrease in peak viremia. Moreover, the combination of these antibodies engineered to avoid enhancement prevented viral escape due to mutation in macaques, a natural host for ZIKV.
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Sequence Data
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-
|
|
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