Rescue of synthetic hantavirus-like foreign RNA by hantavirus as a helper virus

Man-Seong Park, Dong Hoon Jeong, Pyung Woo Lee

Research output: Contribution to journalArticle

Abstract

A system for the expression of synthetic hantavirus-like luciferase RNA was developed using Hantaan (HTN) virus as a helper virus. The hantavirus-like luciferase RNA was constructed by the deletion of the coding region in HTN virus (76-118) S genome and by replacement of a luciferase gene. PCR was performed using primers designed to amplify the whole region of hantavirus-like foreign gene. The resulting PCR product was placed under the control of the T7 RNA polymerase promoter for in vitro transcription. The produced hantavirus-like luciferase RNA was transfected into Vero-E6 cell infected with HTN virus using lipofectin. The level of expression was measured using a luminometer. The hantavirus-like luciferase RNA was allowed to amplify and express. And also, the hantavirus-like luciferase RNA was packaged into HTN virions. The 5′ terminal and 3′ terminal conserved sequences of HTN virus genome were sufficient to provide the signals for RNA amplification and packaging. This suggests that the RNA promoter region for hantavirus RNA synthesis is located in 3′ terminal region. The luciferase activity was analyzed from the progeny virus-infected cells in order to examine if the 5′ and 3′ terminal sequences play a role in regulating a packaging pathway while genome of HTN virus is packaged. The luciferase activity was detectable in every cell passage. However, the activity of luciferase was decreased gradually after each passage. The fact that the hantavirus-like luciferase RNA can be packaged into progeny virus suggests that the 5′ and 3′ terminal sequences of HTN virus genome play an important role in regulating a packaging pathway.

Original languageEnglish
Pages (from-to)269-277
Number of pages9
JournalJournal of Bacteriology and Virology
Volume32
Issue number3
Publication statusPublished - 2002 Jan 1

Fingerprint

Helper Viruses
Hantavirus
Luciferases
Hantaan virus
RNA
Product Packaging
Genome
Viruses
Polymerase Chain Reaction
Vero Cells
Conserved Sequence
Genetic Promoter Regions
Virion
Genes

Keywords

  • Hantavirus
  • Helper virus
  • Multiplex RT-PCR
  • Reassortaient
  • Rescue
  • Synthetic RNA

ASJC Scopus subject areas

  • Microbiology
  • Immunology
  • Virology

Cite this

Rescue of synthetic hantavirus-like foreign RNA by hantavirus as a helper virus. / Park, Man-Seong; Jeong, Dong Hoon; Lee, Pyung Woo.

In: Journal of Bacteriology and Virology, Vol. 32, No. 3, 01.01.2002, p. 269-277.

Research output: Contribution to journalArticle

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