Spike-heparan sulfate interactions in SARS-CoV-2 infection

Curr Opin Struct Biol. 2022 Oct:76:102439. doi: 10.1016/j.sbi.2022.102439. Epub 2022 Jul 6.

Abstract

Recent biochemical, biophysical, and genetic studies have shown that heparan sulfate, a major component of the cellular glycocalyx, participates in infection of SARS-CoV-2 by facilitating the so-called open conformation of the spike protein, which is required for binding to ACE2. This review highlights the involvement of heparan sulfate in the SARS-CoV-2 infection cycle and argues that there is a high degree of coordination between host cell heparan sulfate and asparagine-linked glycans on the spike in enabling ACE2 binding and subsequent infection. The discovery that spike protein binding and infection depends on both viral and host glycans provides insights into the evolution, spread and potential therapies for SARS-CoV-2 and its variants.

Publication types

  • Review
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, Non-U.S. Gov't
  • Research Support, N.I.H., Extramural

MeSH terms

  • Angiotensin-Converting Enzyme 2
  • Asparagine / metabolism
  • Binding Sites
  • COVID-19*
  • Heparitin Sulfate
  • Humans
  • Protein Binding
  • SARS-CoV-2
  • Spike Glycoprotein, Coronavirus / chemistry
  • Spike Glycoprotein, Coronavirus / genetics
  • Spike Glycoprotein, Coronavirus / metabolism

Substances

  • Spike Glycoprotein, Coronavirus
  • spike protein, SARS-CoV-2
  • Asparagine
  • Heparitin Sulfate
  • Angiotensin-Converting Enzyme 2