Journal article
Neutralization epitope of varicella zoster virus on native viral glycoprotein gp118 (VZV glycoprotein gplll)
Virology (New York, N.Y.), Vol.149(2), pp.230-241
1986
DOI: 10.1016/0042-6822(86)90124-8
PMID: 2418586
Abstract
Varicella-zoster virus (VZV) specifies the formation of several glycoproteins, including a 118,000-Da mature structural product (gp118). The biologic and biochemical properties of gp118 were studied after production of murine monoclonal antibodies to both a low-passage laboratory strain (VZV-32) and an attenuated vaccine strain (VZV-Oka). Structural analyses performed with the three glycosidases endo-(β-
N-acetylglucosaminidase H (endoglycosidase H), endo-β-
N-acetylglucosaminidase F (endoglycosidase F), and endo-α-
N-acetylgalactosaminidase demonstrated that gp118 was predominantly an N-linked complex type glycoprotein built upon a polypeptide backbone of approximately 79,000 Da. Sialic acid residues were present on the mature glycoprotein, but these terminal sugars were absent from the partially glycosylated intermediate forms recovered from monensin-treated infected cultures. Unlike another VZV-specified glycoprotein gp98, no new oligosaccharide moieties were observed on gp118 after addition of tunicamycin to VZV-infected cultures. By plaque reduction assays with a panel of monoclonal antibodies, we defined an epitope on this glycoprotein which elicited a complement-independent neutralizing antibody response of high magnitude. The epitope was highly conserved, since it was present on a laboratory VZV strain, wild type isolates, as well as the attenuated vaccine strain (VZV-Oka). Competitive blocking experiments with the same anti-gp118 monoclonal antibodies indicated that four neutralizing antibodies were directed against similar or identical epitopes whereas one nonneutralizing antibody reacted with a different antigenic site. Thus, this study demonstrates the presence of an immunodominant neutralization epitope on native viral glycoprotein gp118. Under a new consensus nomenclature, this glycoprotein will be designated VZV gpIII.
Details
- Title: Subtitle
- Neutralization epitope of varicella zoster virus on native viral glycoprotein gp118 (VZV glycoprotein gplll)
- Creators
- Eduardo A Montalvo - Departments of Microbiology and Pediatrics, University of Iowa, Iowa City, Iowa 52242, USACharles Grose - Departments of Microbiology and Pediatrics, University of Iowa, Iowa City, Iowa 52242, USA
- Resource Type
- Journal article
- Publication Details
- Virology (New York, N.Y.), Vol.149(2), pp.230-241
- DOI
- 10.1016/0042-6822(86)90124-8
- PMID
- 2418586
- NLM abbreviation
- Virology
- ISSN
- 0042-6822
- eISSN
- 1096-0341
- Publisher
- Elsevier Inc
- Language
- English
- Date published
- 1986
- Academic Unit
- Stead Family Department of Pediatrics; Infectious Disease (Pediatrics)
- Record Identifier
- 9984093321602771
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