Summary
The E1 nucleic acid sequence of rubella virus strain Judith (RJ) has been cloned into anE. coli expression vector LB03. The reactivity of the expressed unglycosylated antigen (E1J) was compared with its glycosylated counterpart in native virus (RJ) usind rabbit and human sera. Rabbit antisera raised against RJ and E1J reacted differently with wild type, RJ (laboratory strain) and RA27/3 (vaccine virus) strains in a kinetic neutralisation test. Reciprocally, human post RA27/3 vaccination sera were also found to differ from post infection or post re-infection sera in their reactivity with RJ and E1J antigens. Our observations suggest that E1, in the conformation adopted in the RA27/3 virion may have unique antigenic properties.
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Londesborough, P., Terry, G. & Ho-Terry, L. Reactivity of a recombinant rubella E1 antigen expressed inE. coli . Archives of Virology 122, 391–397 (1992). https://doi.org/10.1007/BF01317201
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DOI: https://doi.org/10.1007/BF01317201