Homotypic interaction of Bunyamwera virus nucleocapsid protein

VHJ Leonard, A Kohl, JC Osborne, A McLees, Richard Michael Elliott

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

The bunyavirus nucleocapsid protein, N, plays a central role in viral replication in encapsidating the three genomic RNA segments to form functional templates for transcription and replication by the viral RNAdependent RNA polymerase. Here we report functional mapping of interacting domains of the Bunyamwera orthobunyavirus N protein by yeast and mammalian two-hybrid systems, immunoprecipitation experiments, and chemical cross-linking studies. N forms a range of multimers from dimers to high-molecular-weight structures, independently of the presence of RNA. Deletion of the N- or C-terminal domains resulted in loss of activity in a minireplicon assay and a decreased capacity for N to form higher multimers. Our data suggest a head-to-head and tail-to-tail multimerization model for the orthobunyavirus N protein.

Original languageEnglish
Pages (from-to)13166-13172
Number of pages7
JournalJournal of Virology
Volume79
Issue number20
DOIs
Publication statusPublished - Oct 2005

Keywords

  • VALLEY FEVER VIRUS
  • HANTAVIRUS N-PROTEIN
  • REVERSE GENETICS
  • RNA-POLYMERASE
  • SYSTEM
  • TRANSCRIPTION
  • REPLICATION
  • EXPRESSION
  • CELLS
  • OLIGOMERIZATION

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