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.

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