Functional mapping of B-cell linear epitopes of SARS-CoV-2 in COVID-19 convalescent population
ABSTRACT Pandemic SARS-CoV-2 has caused unprecedented mortalities. Vaccine is in urgent need to stop the pandemic. Despite great progresses on SARS-CoV-2 vaccine development, the efficacy of the vaccines remains to be determined. Deciphering the interactions of the viral epitopes with the elicited neutralizing antibodies in convalescent population inspires the vaccine development. In this study, we devised a peptide array composed of 20-mer overlapped peptides of spike (S), membrane (M) and envelope (E) proteins, and performed a screening with 120 COVID-19 convalescent sera and 24 non-COVID-19 sera. We identified five SARS-CoV-2-specific dominant epitopes that reacted with above 40% COVID-19 convalescent sera. Of note, two peptides non-specifically interacted with most of the non-COVID-19 sera. Neutralization assay indicated that only five sera completely blocked viral infection at the dilution of 1:200. By using a peptide-compete neutralizing assay, we found that three dominant epitopes partially competed the neutralization activity of several convalescent sera, suggesting antibodies elicited by these epitopes played an important role in neutralizing viral infection. The epitopes we identified in this study may serve as vaccine candidates to elicit neutralizing antibodies in most vaccinated people or specific antigens for SARS-CoV-2 diagnosis.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2020 |
|---|---|
| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:9 |
|---|---|
| Enthalten in: |
Emerging microbes & infections - 9(2020), 1 vom: 02. Dez., Seite 1988-1996 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Yi, Zhigang [VerfasserIn] |
|---|
| Links: |
|---|
| Anmerkungen: |
Date Completed 28.09.2020 Date Revised 07.12.2022 published: Print Citation Status MEDLINE |
|---|
| doi: |
10.1080/22221751.2020.1815591 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM314180540 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM314180540 | ||
| 003 | DE-627 | ||
| 005 | 20231225152159.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231225s2020 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1080/22221751.2020.1815591 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1047.xml |
| 035 | |a (DE-627)NLM314180540 | ||
| 035 | |a (NLM)32844713 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Yi, Zhigang |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Functional mapping of B-cell linear epitopes of SARS-CoV-2 in COVID-19 convalescent population |
| 264 | 1 | |c 2020 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 28.09.2020 | ||
| 500 | |a Date Revised 07.12.2022 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a ABSTRACT Pandemic SARS-CoV-2 has caused unprecedented mortalities. Vaccine is in urgent need to stop the pandemic. Despite great progresses on SARS-CoV-2 vaccine development, the efficacy of the vaccines remains to be determined. Deciphering the interactions of the viral epitopes with the elicited neutralizing antibodies in convalescent population inspires the vaccine development. In this study, we devised a peptide array composed of 20-mer overlapped peptides of spike (S), membrane (M) and envelope (E) proteins, and performed a screening with 120 COVID-19 convalescent sera and 24 non-COVID-19 sera. We identified five SARS-CoV-2-specific dominant epitopes that reacted with above 40% COVID-19 convalescent sera. Of note, two peptides non-specifically interacted with most of the non-COVID-19 sera. Neutralization assay indicated that only five sera completely blocked viral infection at the dilution of 1:200. By using a peptide-compete neutralizing assay, we found that three dominant epitopes partially competed the neutralization activity of several convalescent sera, suggesting antibodies elicited by these epitopes played an important role in neutralizing viral infection. The epitopes we identified in this study may serve as vaccine candidates to elicit neutralizing antibodies in most vaccinated people or specific antigens for SARS-CoV-2 diagnosis | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a COVID-19 | |
| 650 | 4 | |a SARS-CoV-2 | |
| 650 | 4 | |a diagnosis | |
| 650 | 4 | |a epitope | |
| 650 | 4 | |a neutralizing antibody | |
| 650 | 4 | |a vaccine | |
| 650 | 7 | |a Antibodies, Neutralizing |2 NLM | |
| 650 | 7 | |a Antibodies, Viral |2 NLM | |
| 650 | 7 | |a Epitopes, B-Lymphocyte |2 NLM | |
| 650 | 7 | |a Spike Glycoprotein, Coronavirus |2 NLM | |
| 650 | 7 | |a Viral Envelope Proteins |2 NLM | |
| 650 | 7 | |a Viral Vaccines |2 NLM | |
| 700 | 1 | |a Ling, Yun |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Xiaonan |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Jieliang |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Kongying |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Yuyan |e verfasserin |4 aut | |
| 700 | 1 | |a Song, Wuhui |e verfasserin |4 aut | |
| 700 | 1 | |a Ying, Tianlei |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Rong |e verfasserin |4 aut | |
| 700 | 1 | |a Lu, HongZhou |e verfasserin |4 aut | |
| 700 | 1 | |a Yuan, Zhenghong |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Emerging microbes & infections |d 2012 |g 9(2020), 1 vom: 02. Dez., Seite 1988-1996 |w (DE-627)NLM249608804 |x 2222-1751 |7 nnns |
| 773 | 1 | 8 | |g volume:9 |g year:2020 |g number:1 |g day:02 |g month:12 |g pages:1988-1996 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1080/22221751.2020.1815591 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 9 |j 2020 |e 1 |b 02 |c 12 |h 1988-1996 | ||