Epitope mapping of the Lassa virus nucleoprotein using monoclonal anti-nucleocapsid antibodies.
Monoclonal antibodies with differing specificity were prepared against the Josiah strain of the Lassa virus. All monoclonal antibodies were characterized by subclass determination and the immunofluorescence test against Lassa, LCM (WE & Arm strain), Junin, Machupo, and other arenavirus antigens. In radioimmune precipitation tests using purified Lassa virus antigen all monoclonal antibodies precipitated a single band of 60 kd, specific for the viral nucleoprotein (p 60). Three domains (A, B, C) were identified on the surface of the Lassa virus nucleoprotein using an ELISA-inhibition test. All domains carried different Lassa virus specific epitopes. In addition, the A-domain carried a group specific epitope present within the arenavirus family as a whole as shown by cross-reaction in immunofluorescence tests. The B-domain only carries Lassa virus specific epitopes, whereas the C-domain has a type specific and a subgroup specific (Lassa, LCM) epitope.[1]References
- Epitope mapping of the Lassa virus nucleoprotein using monoclonal anti-nucleocapsid antibodies. Hufert, F.T., Lüdke, W., Schmitz, H. Arch. Virol. (1989) [Pubmed]
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