期刊
JOURNAL OF VIROLOGY
卷 86, 期 22, 页码 12397-12401出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/JVI.02006-12
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资金
- National Institutes of Health [AI-23173, GM-61050]
Cysteines were introduced into the membrane-proximal external region (MPER) of the paramyxovirus F protein. A disulfide bond formed, and the mutant protein was expressed at the cell surface but was fusion inactive. Reduction of the disulfide bond restored fusion activity. The data indicate that in addition to dissociation of the three-helix bundle stalk domain of prefusion F, the MPER region also needs to separate for F to be able to refold and cause fusion.
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