PMID: 9557663Apr 29, 1998Paper

The class II membrane glycoprotein G of bovine respiratory syncytial virus, expressed from a synthetic open reading frame, is incorporated into virions of recombinant bovine herpesvirus 1

Journal of Virology
G KühnleG M Keil

Abstract

The bovine herpesvirus 1 (BHV-1) recombinants BHV-1/eG(ori) and BHV-1/eG(syn) were isolated after insertion of expression cassettes which contained either a genomic RNA-derived cDNA fragment (BHV-1/eG(ori)) or a modified, chemically synthesized open reading frame (ORF) (BHV-1/eG(syn)), which both encode the attachment glycoprotein G of bovine respiratory syncytial virus (BRSV), a class II membrane glycoprotein. Northern blot analyses and nuclear runoff transcription experiments indicated that transcripts encompassing the authentic BRSV G ORF were unstable in the nucleus of BHV-1/eG(ori)-infected cells. In contrast, high levels of BRSV G RNA were detected in BHV-1/eG(syn)-infected cells. Immunoblots showed that the BHV-1/eG(syn)-expressed BRSV G glycoprotein contains N- and O-linked carbohydrates and that it is incorporated into the membrane of infected cells and into the envelope of BHV-1/eG(syn) virions. The latter was also demonstrated by neutralization of BHV-1/eG(syn) infectivity by monoclonal antibodies or polyclonal anti-BRSV G antisera and complement. Our results show that expression of the BRSV G glycoprotein by BHV-1 was dependent on the modification of the BRSV G ORF and indicate that incorporation of class II membran...Continue Reading

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Citations

Sep 5, 2003·Antisense & Nucleic Acid Drug Development·X P IoannouS van Drunen Littel-van den Hurk

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