Shortlisting SARS-CoV-2 Peptides for Targeted Studies from Experimental Data-Dependent Acquisition Tandem Mass Spectrometry Data

Proteomics. 2020 Jul;20(14):e2000107. doi: 10.1002/pmic.202000107. Epub 2020 Jun 21.

Abstract

Detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a crucial tool for fighting the COVID-19 pandemic. This dataset brief presents the exploration of a shotgun proteomics dataset acquired on SARS-CoV-2 infected Vero cells. Proteins from inactivated virus samples were extracted, digested with trypsin, and the resulting peptides were identified by data-dependent acquisition tandem mass spectrometry. The 101 peptides reporting for six viral proteins were specifically analyzed in terms of their analytical characteristics, species specificity and conservation, and their proneness to structural modifications. Based on these results, a shortlist of 14 peptides from the N, S, and M main structural proteins that could be used for targeted mass-spectrometry method development and diagnostic of the new SARS-CoV-2 is proposed and the best candidates are commented.

Keywords: COVID-19; SARS-CoV-2; mass spectrometry; peptides; proteomics; viral protein detection.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Betacoronavirus / chemistry*
  • Betacoronavirus / isolation & purification
  • COVID-19
  • Chlorocebus aethiops
  • Coronavirus Infections / diagnosis
  • Coronavirus Infections / virology*
  • Humans
  • Pandemics
  • Peptides / analysis*
  • Pneumonia, Viral / diagnosis
  • Pneumonia, Viral / virology*
  • Proteomics
  • SARS-CoV-2
  • Tandem Mass Spectrometry
  • Vero Cells
  • Viral Proteins / analysis*
  • Viral Structural Proteins / analysis

Substances

  • Peptides
  • Viral Proteins
  • Viral Structural Proteins