A bicistronic subgenomic mRNA encodes both the ORF2 and ORF3 proteins of hepatitis E virus

J Virol. 2006 Jun;80(12):5919-26. doi: 10.1128/JVI.00046-06.

Abstract

Hepatitis E virus replicons containing the neomycin resistance gene expressed from open reading frames (ORFs) 2 and 3 were transfected into Huh-7 cells, and stable cell lines containing functional replicons were selected by constant exposure to G418 sulfate. Northern blot analyses detected full-length replicon RNA and a single subgenomic RNA. This subgenomic RNA, which was capped, initiated at nucleotide 5122 downstream of the first two methionine codons in ORF3 and was bicistronic; two closely spaced methionine codons in different reading frames were used for the initiation of ORF3 and ORF2 translation.

Publication types

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

MeSH terms

  • Capsid Proteins / genetics*
  • Cell Line
  • Codon, Initiator
  • Glycoproteins / genetics*
  • Hepatitis E virus / genetics*
  • Humans
  • Protein Biosynthesis
  • RNA Caps
  • RNA, Messenger / genetics
  • RNA, Viral / genetics*
  • Replicon
  • Transfection
  • Viral Proteins / genetics*

Substances

  • Capsid Proteins
  • Codon, Initiator
  • Glycoproteins
  • ORF3 protein, Hepatitis E virus
  • RNA Caps
  • RNA, Messenger
  • RNA, Viral
  • Viral Proteins