Neutralizing Epitopes and Residues Mediating the Potential Antigenic Drift of the Hemagglutinin-Esterase Protein of Influenza C Virus
We mapped the hemagglutinin-esterase (HE) antigenic epitopes of the influenza C virus on the three-dimensional (3D) structure of the HE glycoprotein using 246 escape mutants that were selected by a panel of nine anti-HE monoclonal antibodies (MAbs), including seven of the C/Ann Arbor/1/50 virus and two of the C/Yamagata/15/2004 virus. The frequency of variant selection in the presence of anti-HE MAbs was very low, with frequencies ranging from 10-4.62 to 10-7.58 for the C/Ann Arbor/1/50 virus and from 10-7.11 to 10-9.25 for the C/Yamagata/15/2004 virus. Sequencing of mutant HE genes revealed 25 amino acid substitutions at 16 positions in three antigenic sites: A-1, A-2, and A-3, and a newly designated Y-1 site. In the 3D structure, the A-1 site was widely located around the receptor-binding site, the A-2 site was near the receptor-destroying enzyme site, and the Y-1 site was located in the loop on the topside of HE. The hemagglutination inhibition reactions of the MAbs with influenza C viruses, circulating between 1947 and 2016, were consistent with the antigenic-site amino acid changes. We also found some amino acid variations in the antigenic site of recently circulating strains with antigenic changes, suggesting that viruses that have the potential to alter antigenicity continue to circulate in humans.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2018 |
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| Erschienen: |
2018 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:10 |
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| Enthalten in: |
Viruses - 10(2018), 8 vom: 09. Aug. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Matsuzaki, Yoko [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 13.03.2019 Date Revised 13.12.2023 published: Electronic Citation Status MEDLINE |
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| doi: |
10.3390/v10080417 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM287359387 |
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| 100 | 1 | |a Matsuzaki, Yoko |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Neutralizing Epitopes and Residues Mediating the Potential Antigenic Drift of the Hemagglutinin-Esterase Protein of Influenza C Virus |
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| 500 | |a published: Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a We mapped the hemagglutinin-esterase (HE) antigenic epitopes of the influenza C virus on the three-dimensional (3D) structure of the HE glycoprotein using 246 escape mutants that were selected by a panel of nine anti-HE monoclonal antibodies (MAbs), including seven of the C/Ann Arbor/1/50 virus and two of the C/Yamagata/15/2004 virus. The frequency of variant selection in the presence of anti-HE MAbs was very low, with frequencies ranging from 10-4.62 to 10-7.58 for the C/Ann Arbor/1/50 virus and from 10-7.11 to 10-9.25 for the C/Yamagata/15/2004 virus. Sequencing of mutant HE genes revealed 25 amino acid substitutions at 16 positions in three antigenic sites: A-1, A-2, and A-3, and a newly designated Y-1 site. In the 3D structure, the A-1 site was widely located around the receptor-binding site, the A-2 site was near the receptor-destroying enzyme site, and the Y-1 site was located in the loop on the topside of HE. The hemagglutination inhibition reactions of the MAbs with influenza C viruses, circulating between 1947 and 2016, were consistent with the antigenic-site amino acid changes. We also found some amino acid variations in the antigenic site of recently circulating strains with antigenic changes, suggesting that viruses that have the potential to alter antigenicity continue to circulate in humans | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a antigenic structure | |
| 650 | 4 | |a epidemiology | |
| 650 | 4 | |a escape mutant | |
| 650 | 4 | |a influenza C virus | |
| 650 | 7 | |a Antibodies, Monoclonal |2 NLM | |
| 650 | 7 | |a Antibodies, Neutralizing |2 NLM | |
| 650 | 7 | |a Antibodies, Viral |2 NLM | |
| 650 | 7 | |a Antigens, Viral |2 NLM | |
| 650 | 7 | |a Epitopes |2 NLM | |
| 650 | 7 | |a Hemagglutinins, Viral |2 NLM | |
| 650 | 7 | |a Viral Fusion Proteins |2 NLM | |
| 650 | 7 | |a hemagglutinin esterase |2 NLM | |
| 700 | 1 | |a Sugawara, Kanetsu |e verfasserin |4 aut | |
| 700 | 1 | |a Furuse, Yuki |e verfasserin |4 aut | |
| 700 | 1 | |a Shimotai, Yoshitaka |e verfasserin |4 aut | |
| 700 | 1 | |a Hongo, Seiji |e verfasserin |4 aut | |
| 700 | 1 | |a Mizuta, Katsumi |e verfasserin |4 aut | |
| 700 | 1 | |a Nishimura, Hidekazu |e verfasserin |4 aut | |
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