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Standard methods for assessing the thermal stability of viruses can be time consuming and rather qualitative yet such data is a necessary requisite for vaccine formulation. In this study a novel plate-based thermal scanning assay for virus particle stability has been developed (PaSTRy: Particle Stability Thermal Release Assay). Two environment-sensitive fluorescent dyes, with non-overlapping emission spectra and different affinities, are used to accrue simultaneously independent data for the overall stability of the virus capsid, as judged by the exposure of the genome, and for capsid protein stability according to the exposure of hydrophobic side chains which are normally buried. This offers a fast and efficient high-throughput method to optimise vaccine formulation and to investigate the processes of virus uncoating.

Original publication

DOI

10.1016/j.jviromet.2012.06.014

Type

Journal article

Journal

J Virol Methods

Publication Date

10/2012

Volume

185

Pages

166 - 170

Keywords

Capsid Proteins, Drug Stability, Fluorescent Dyes, Genome, Viral, High-Throughput Screening Assays, Staining and Labeling, Technology, Pharmaceutical, Temperature, Viral Vaccines, Viruses