Immune evasion of SARS-CoV-2 variants of concern is driven by low affinity to neutralizing antibodies

Chem Commun (Camb). 2021 Jun 21;57(49):6094-6097. doi: 10.1039/d1cc01747k. Epub 2021 May 26.

Abstract

SARS-CoV-2 VOC immune evasion is mainly due to lower cross-reactivity from previously elicited class I/II neutralizing antibodies, while increased affinity to hACE2 plays a minor role. The affinity between antibodies and VOCs is impacted by remodeling of the electrostatic surface potential of the Spike RBDs. The P.3 variant is a putative VOC.

MeSH terms

  • Antibodies, Neutralizing / immunology*
  • Antibody Affinity / genetics*
  • Antibody Affinity / immunology
  • Cross Reactions / genetics
  • Immune Evasion / genetics*
  • Models, Molecular
  • Protein Domains
  • SARS-CoV-2 / genetics
  • SARS-CoV-2 / immunology*
  • Spike Glycoprotein, Coronavirus / chemistry
  • Spike Glycoprotein, Coronavirus / genetics
  • Spike Glycoprotein, Coronavirus / immunology
  • Static Electricity

Substances

  • Antibodies, Neutralizing
  • Spike Glycoprotein, Coronavirus
  • spike protein, SARS-CoV-2