Caister Academic Press

Coronavirus Genome Packaging

Krishna Narayanan and Shinji Makino
from: Coronaviruses: Molecular and Cellular Biology (Edited by: Volker Thiel). Caister Academic Press, U.K. (2007)

Abstract

The assembly of infectious coronavirus particles requires the selection of viral genomic RNA from a cellular pool that contains an abundant excess of non-viral and viral RNAs. Among the seven to ten specific viral mRNAs synthesized in virus-infected cells, only the full length genomic RNA is packaged efficiently into coronavirus particles. Studies have revealed cis-acting elements and trans-acting viral factors involved in coronavirus genome encapsidation and packaging. Understanding the molecular mechanisms of genome selection and packaging is critical for developing antiviral strategies and viral expression vectors based on the coronavirus genome. In this review, we have compiled these collective findings to provide some insights into the initial stages of infectious coronavirus particle assembly read more ...
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