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Immunological Investigations
A Journal of Molecular and Cellular Immunology
Volume 24, 1995 - Issue 5
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Original Article

Relativity of an Antigenic Homology Between Human Interferon-α1 and Interferon-α2c

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Pages 787-793 | Published online: 07 Jul 2009
 

Abstract

Analysis of an antigenic relatedness between human interferon (IFN)-α1 and IFN-α2 was performed with mapped monoclonal antibodies raised to the respective subtypes. Antigenic properties of immunoreactive domains located in the N-terminal segments 30–67 of IFN-α1 and IFN-α2 were found distinct when compared by neutralization bioassay or ELISA. on the other hand, corresponding domains exhibited an unexpectedly high antigenic homology when tested by Western blot. We suppose that this relativity in antigenic relation lies in the various extent of denaturation of IFN-molecules in bioassay, ELISA and immunoblot. Structural differences of tested antigens may be responsible for a conformation-determined access of antibodies to the shared epitopes.

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