Multiple roles of viral replication proteins in plant RNA virus replication

Peter D. Nagy, Judit Pogany

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

52 Scopus citations

Abstract

Identification of the roles of replication factors represents one of the major frontiers in current virus research. Among plant viruses, the positive-stranded (+) RNA viruses are the largest group and the most widespread. The central step in the infection cycles of (+) RNA viruses is RNA replication, which leads to rapid production of huge number of viral (+) RNA progeny in the infected plant cells. The RNA replication process is carried out by the virus-specific replicase complex consisting of viral RNA-dependent RNA polymerase, one or more auxiliary viral replication proteins, and host factors, which assemble in specialized membranous compartments in infected cells. Replication is followed by cell-to-cell and long- distance movement to invade the entire plant and/or encapsidation to facilitate transmission to new plants. This chapter provides an overview of our current understanding of the role of viral replication proteins during genome replication. The recent significant progress in this research area is based on development of powerful in vivo and in vitro approaches, including replicase assays, reverse genetic approaches, intracelular localization studies and the use of plant or yeast model hosts.

Original languageEnglish
Title of host publicationPlant Virology Protocols
Subtitle of host publicationFrom Viral Sequence to Protein Function
Pages55-68
Number of pages14
DOIs
StatePublished - 2008

Publication series

NameMethods in Molecular Biology
Volume451
ISSN (Print)1064-3745

Keywords

  • Brome mosaic virus
  • Chaperone
  • Helicase
  • RNA-dependent RNA polymerase
  • Replicase
  • Tobacco mosaic virus
  • Tomato bushy stunt virus

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics

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