Topological Mapping of Unique Epitopes on the Dengue-2 Virus NS1 Protein Using Monoclonal Antibodies
- 1 March 1987
- journal article
- research article
- Published by Microbiology Society in Journal of General Virology
- Vol. 68 (3), 845-851
- https://doi.org/10.1099/0022-1317-68-3-845
Abstract
Monoclonal antibodies were produced against two distinct Thai dengue-2 (DEN-2) virus strains isolated in 1980 from dengue haemorrhagic fever patients. Nine of 36 hybridomas produced monoclonal IgG antibodies which reacted in radioimmune precipitation assays with the NS1 non-structural protein (42000 mol. wt.) from DEN-2-infected C6/36 (Aedes albopictus) cells. The virus specificity of NS1-reactive monoclonal antibodies was determined by indirect immunofluorescence assays using LLC-MK2 cells infected with either the Thai 1980 DEN-2 isolates, prototype DEN viruses (four serotypes), Japanese encephalitis (JE), Murray Valley encephalitis, West Nile, Wesselbron or Tembusu viruses. Eight of the monoclonal antibody preparations were DEN-2-serotype specific. One preparation defined a special serological relationship between DEN-2 and JE viruses. Four preparations had detectable complement fixation titres using Thai DEN-2 virus antigen. Six spatially unique epitopes were identified using competitive binding assays.This publication has 17 references indexed in Scilit:
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