The cellular receptor to human rhinovirus 2 binds around the 5-fold axis and not in the canyon: a structural view

EMBO J. 2000 Dec 1;19(23):6317-25. doi: 10.1093/emboj/19.23.6317.

Abstract

Human rhinovirus serotype 2 (HRV2) belongs to the minor group of HRVs that bind to members of the LDL-receptor family including the very low density lipoprotein (VLDL)-receptor (VLDL-R). We have determined the structures of the complex between HRV2 and soluble fragments of the VLDL-R to 15 A resolution by cryo-electron microscopy. The receptor fragments, which include the first three ligand-binding repeats of the VLDL-R (V1-3), bind to the small star-shaped dome on the icosahedral 5-fold axis. This is in sharp contrast to the major group of HRVs where the receptor site for ICAM-1 is located at the base of a depression around each 5-fold axis. Homology models of the three domains of V1-3 were used to explore the virus-receptor interaction. The footprint of VLDL-R on the viral surface covers the BC- and HI-loops on VP1.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Binding Sites
  • Cryoelectron Microscopy
  • Crystallography, X-Ray
  • HeLa Cells
  • Humans
  • Intercellular Adhesion Molecule-1 / chemistry
  • Ligands
  • Models, Molecular
  • Molecular Sequence Data
  • Mutagenesis
  • Protein Binding
  • Protein Structure, Tertiary
  • Receptors, LDL / chemistry
  • Receptors, Virus / chemistry
  • Recombinant Proteins / chemistry
  • Rhinovirus / chemistry*
  • Rhinovirus / metabolism*
  • Sequence Homology, Amino Acid

Substances

  • Ligands
  • Receptors, LDL
  • Receptors, Virus
  • Recombinant Proteins
  • VLDL receptor
  • Intercellular Adhesion Molecule-1