Molecular mechanisms of the influenza fusion peptide: insights from experimental and simulation studies
| Autor: | Cláudio M. Soares, Diana Lousa |
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| Rok vydání: | 2021 |
| Předmět: |
Models
Molecular QH301-705.5 Protein Conformation membrane fusion Hemagglutinin (influenza) Reviews Review virus General Biochemistry Genetics and Molecular Biology Insert (molecular biology) Virus biophysical assays Viral envelope Influenza Human Humans hemagglutinin Biology (General) Viral Fusion Protein Inhibitors chemistry.chemical_classification Host cell membrane Fusion Membranes biology Chemistry Lipid bilayer fusion Hydrogen-Ion Concentration Cell biology molecular dynamics simulation Influenza A virus biology.protein Glycoprotein Peptides influenza Viral Fusion Proteins |
| Zdroj: | FEBS Open Bio FEBS Open Bio, Vol 11, Iss 12, Pp 3253-3261 (2021) |
| ISSN: | 2211-5463 |
| Popis: | A key step in infections by enveloped viruses, such as influenza, is the fusion between the viral envelope and the host cell membrane, which allows the virus to insert its genetic material into the host cell and replicate. The influenza virus fusion process is promoted by hemagglutinin (HA), a glycoprotein that contains three identical monomers composed of two polypeptide chains (HA1 and HA2). Early studies on this protein revealed that HA‐mediated fusion involves the insertion of the HA2 N‐terminal segment into the host membrane and that this segment, known as the fusion peptide, is a key player in the fusion process. This mini‐review highlights the main findings that have been obtained by experimental and computational studies on the HA fusion peptide, which give us a glimpse of its mode of action. A key step in influenza infection is the fusion of the viral and host membranes, promoted by the protein hemagglutinin, which contains a fusion peptide that inserts and destabilizes the host membrane. This review highlights the major findings of experimental and computational studies, which analyzed the properties of this peptide, including the role of key residues for its fusogenic activity. |
| Databáze: | OpenAIRE |
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