Title | Rhinovirus-stabilizing activity of artificial VLDL-receptor variants defines a new mechanism for virus neutralization by soluble receptors. | ||
Author | Nicodemou, Andreas; Petsch, Martina; Konecsni, Tunde; Kremser, Leopold; Kenndler, Ernst; Casasnovas, Jose M; Blaas, Dieter | ||
Journal | FEBS Lett | Publication Year/Month | 2005-Oct |
PMID | 16213497 | PMCID | -N/A- |
Affiliation | 1.Institute of Analytical Chemistry, University of Vienna, Austria. |
Members of the low-density lipoprotein receptor family possess various numbers of ligand binding repeats that non-equally contribute to binding of minor group human rhinoviruses. Using an artificial concatemer of five copies of repeat 3 of the human very-low density lipoprotein receptor, we demonstrate protection of HRV2 against low-pH mediated uncoating and inhibition of penetration of an RNA-specific fluorescent dye into the intact virion. This indicates that the recombinant receptor inhibits viral breathing and irreversible conformational modifications of the capsid that precede RNA release, providing a new mechanism for rhinovirus neutralization by soluble receptor molecules.