Mechanistic basis for potent neutralization of Sin Nombre hantavirus by a human monoclonal antibody.
Mechanistic basis for potent neutralization of Sin Nombre hantavirus by a human monoclonal antibody.
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DOI:
10.1038/s41564-023-01413-y
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发表时间:
2023-07
影响因子:
28.3
通讯作者:
中科院分区:
文献类型:
--
作者:
Rodent-borne hantaviruses are prevalent worldwide and upon spillover to human populations, cause severe disease for which no specific treatment is available. A potent antibody response is key for recovery from hantavirus infection. Here we study a highly neutralizing human monoclonal antibody, termed SNV-42, which was derived from a memory B cell isolated from an individual with previous Sin Nombre virus (SNV) infection. Crystallographic analysis demonstrates that SNV-42 targets the Gn subcomponent of the tetrameric (Gn−Gc)4 glycoprotein assembly that is relevant for viral entry. Integration of our 1.8 Å structure with the (Gn−Gc)4 ultrastructure arrangement indicates that SNV-42 targets the membrane-distal region of the virus envelope. Comparison of the SNV-42 paratope encoding variable genes with inferred germline gene segments reveals high sequence conservation, suggesting that germline-encoded antibodies inhibit SNV. Furthermore, mechanistic assays reveal that SNV-42 interferes with both receptor recognition and fusion during host-cell entry. This work provides a molecular-level blueprint for understanding the human neutralizing antibody response to hantavirus infection. Structural analysis reveals how a potent human monoclonal antibody neutralizes Sin Nombre virus by binding the Gn–Gc heterodimer lattice.
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影响因子:
5.5
作者:
Hooper, Jay W.;Josleyn, Matthew;Ballantyne, John;Brocato, Rebecca
通讯作者:
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DOI:
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发表时间:
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影响因子:
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通讯作者:
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作者:
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作者:
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通讯作者:
Rey, Felix A.
DOI:
10.3390/v13122368
发表时间:
2021-11-26
期刊:
Viruses
影响因子:
--
作者:
Guardado-Calvo P;Rey FA
通讯作者:
Rey FA