Interaction of hantavirus nucleocapsid protein with ribosomal protein S19

J Virol. 2010 Dec;84(23):12450-3. doi: 10.1128/JVI.01388-10. Epub 2010 Sep 15.

Abstract

Hantaviruses, members of the Bunyaviridae family, are emerging category A pathogens that initiate the translation of their capped mRNAs by a novel mechanism mediated by viral nucleocapsid protein (N). N specifically binds to the mRNA 5' m7G cap and 40S ribosomal subunit, a complex of 18S rRNA and multiple ribosomal proteins. Here, we show that N specifically interacts with the ribosomal protein S19 (RPS19), located at the head region of the 40S subunit. We suggest that this N-RPS19 interaction facilitates ribosome loading on capped mRNAs during N-mediated translation initiation.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Blotting, Western
  • DNA Primers / genetics
  • HeLa Cells
  • Humans
  • Immunoprecipitation
  • Mass Spectrometry
  • Nucleocapsid Proteins / metabolism*
  • Orthohantavirus / metabolism
  • Orthohantavirus / physiology*
  • Protein Biosynthesis / physiology*
  • RNA, Messenger / metabolism*
  • Ribosomal Proteins / metabolism*

Substances

  • DNA Primers
  • Nucleocapsid Proteins
  • RNA, Messenger
  • Ribosomal Proteins
  • ribosomal protein S19