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Dichotomy of glycop...
Dichotomy of glycoprotein g gene in herpes simplex virus type 1 isolates.
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Rekabdar, Elham, 1971 (author)
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- Tunbäck, Petra, 1965 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för särskilda specialiteter, Avdelningen för dermatologi och venereologi,Institute of Selected Clinical Sciences, Department of Dermatology and Venereology
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- Liljeqvist, Jan-Åke, 1954 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för laboratoriemedicin, Avdelningen för klinisk virologi,Institute of Laboratory Medicine, Dept of Clinical Virology
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- Lindh, Magnus, 1960 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för laboratoriemedicin, Avdelningen för klinisk virologi,Institute of Laboratory Medicine, Dept of Clinical Virology
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- Bergström, Tomas, 1950 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för laboratoriemedicin, Avdelningen för klinisk virologi,Institute of Laboratory Medicine, Dept of Clinical Virology
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(creator_code:org_t)
- 2002
- 2002
- English.
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In: Journal of clinical microbiology. - 0095-1137. ; 40:9, s. 3245-51
- Related links:
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https://gup.ub.gu.se...
Abstract
Subject headings
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- Herpes simplex virus type 1 (HSV-1) encodes 11 envelope glycoproteins, of which glycoprotein G-1 (gG-1) induces a type-specific antibody response. Variability of the gG-1 gene among wild-type strains may be a factor of importance for a reliable serodiagnosis and typing of HSV-1 isolates. Here, we used a gG-1 type-specific monoclonal antibody (MAb) to screen for mutations in the immunodominant region of this protein in 108 clinical HSV-1 isolates. Of these, 42 isolates showed no reactivity to the anti-gG-1 MAb. One hundred five strains were further examined by DNA sequencing of the middle part of the gG-1 gene, encompassing 106 amino acids including the immunodominant region and epitope of the anti-gG-1 MAb. By phylogenetic comparisons based on the sequence data, we observed two (main) genetic variants of the gG-1 gene among the clinical isolates corresponding to reactivity or nonreactivity to the anti-gG-1 MAb. Furthermore, four strains appeared to be recombinants of the two gG-1 variants. In addition, one strain displayed a gG-1-negative phenotype due to a frameshift mutation, in the form of insertion of a cytosine nucleotide. When immunoglobulin G reactivity to HSV-1 in sera from patients infected with either of the two variants was investigated, no significant differences were found between the two groups, either in a type-common enzyme-linked immunosorbent assay (ELISA) or in a type-specific gG-1 antigen-based ELISA. Despite the here-documented existence of two variants of the gG-1 gene affecting the immunodominant region of the protein, other circumstances, such as early phase of infection, might be sought for explaining the seronegativity to gG-1 commonly found in a proportion of the HSV-1-infected patients.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Dermatologi och venereologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Dermatology and Venereal Diseases (hsv//eng)
Keyword
- Amino Acid Sequence
- Antibodies
- Monoclonal
- immunology
- Antibodies
- Viral
- immunology
- Cell Line
- Enzyme-Linked Immunosorbent Assay
- Frameshift Mutation
- Genetic Variation
- Herpes Simplex
- virology
- Herpesvirus 1
- Human
- classification
- genetics
- immunology
- Humans
- Immunodominant Epitopes
- Molecular Sequence Data
- Sequence Analysis
- DNA
- Viral Envelope Proteins
- chemistry
- genetics
- immunology
Publication and Content Type
- ref (subject category)
- art (subject category)
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