In silico detection of SARS-CoV-2 specific B-cell epitopes and validation in ELISA for serological diagnosis of COVID-19

Rapid generation of diagnostics is paramount to understand epidemiology and to control the spread of emerging infectious diseases such as COVID-19. Computational methods to predict serodiagnostic epitopes that are specific for the pathogen could help accelerate the development of new diagnostics. A systematic survey of 27 SARS-CoV-2 proteins was conducted to assess whether existing B-cell epitope prediction methods, combined with comprehensive mining of sequence databases and structural data, could predict whether a particular protein would be suitable for serodiagnosis. Nine of the predictions were validated with recombinant SARS-CoV-2 proteins in the ELISA format using plasma and sera from patients with SARS-CoV-2 infection, and a further 11 predictions were compared to the recent literature. Results appeared to be in agreement with 12 of the predictions, in disagreement with 3, while a further 5 were deemed inconclusive. We showed that two of our top five candidates, the N-terminal fragment of the nucleoprotein and the receptor-binding domain of the spike protein, have the highest sensitivity and specificity and signal-to-noise ratio for detecting COVID-19 sera/plasma by ELISA. Mixing the two antigens together for coating ELISA plates led to a sensitivity of 94% (N = 80 samples from persons with RT-PCR confirmed SARS-CoV-2 infection), and a specificity of 97.2% (N = 106 control samples).

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Scientific reports - 11(2021), 1 vom: 22. Feb., Seite 4290

Sprache:

Englisch

Beteiligte Personen:

Phan, Isabelle Q [VerfasserIn]
Subramanian, Sandhya [VerfasserIn]
Kim, David [VerfasserIn]
Murphy, Michael [VerfasserIn]
Pettie, Deleah [VerfasserIn]
Carter, Lauren [VerfasserIn]
Anishchenko, Ivan [VerfasserIn]
Barrett, Lynn K [VerfasserIn]
Craig, Justin [VerfasserIn]
Tillery, Logan [VerfasserIn]
Shek, Roger [VerfasserIn]
Harrington, Whitney E [VerfasserIn]
Koelle, David M [VerfasserIn]
Wald, Anna [VerfasserIn]
Veesler, David [VerfasserIn]
King, Neil [VerfasserIn]
Boonyaratanakornkit, Jim [VerfasserIn]
Isoherranen, Nina [VerfasserIn]
Greninger, Alexander L [VerfasserIn]
Jerome, Keith R [VerfasserIn]
Chu, Helen [VerfasserIn]
Staker, Bart [VerfasserIn]
Stewart, Lance [VerfasserIn]
Myler, Peter J [VerfasserIn]
Van Voorhis, Wesley C [VerfasserIn]

Links:

Volltext

Themen:

Epitopes, B-Lymphocyte
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 08.03.2021

Date Revised 16.11.2022

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41598-021-83730-y

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM321778472