Antibodies to a synthetic peptide corresponding to the N-terminal end of mouse gamma interferon (IFNγ)

Abstract

Antibodies to an N-terminal synthetic peptide of mouse γ interferon (MoIFNγ) neutralized the antiviral activity of MoIFNγ but not MoIFNα β , human IFN α (HuIFNα), HuIFNβ or cynomologus monkey IFNγ (CynIFNγ). Comparatively, antibodies to mouse N-terminal synthetic peptide showed only 10% reciprocal cross-reactivity in neutralization tests against heterologous HuIFNγ and 13% cross-reactivity in the ELISA test against Hu N-terminal peptide. The predetermined specificity of these antibodies make them powerful tools for studying antigenic relatedness and biological properties of IFNγs.