Abstract
Idiotypes have been defined serologically as variable-region markers present on unique subsets of antibody molecules. Most studies involving myeloma proteins and antibody responses in inbred mice have indicated that idiotypy is closely related to antigenic specificity. However, indirect evidence1–7 suggests that idiotypy can sometimes be dissociated from specificity. In the response to the small monomeric protein, hen egg-white lysozyme (HEL), previous results8,9 demonstrated that 70–95% of the anti-HEL antibody found in sera of primed and boosted mice is specific for a particular region of HEL and bears a predominant idiotype (IdX-HEL). In this report, hybridoma anti-HEL antibodies tested with well-characterized peptide fragments of HEL show that the IdX-HEL marker can be found on antibodies of completely distinct antigen specificities. Thus, a mode of recognition other than antigenic recognition probably plays a major role in the immune response to HEL.
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Metzger, D., Miller, A. & Sercarz, E. Sharing of an idiotypic marker by monoclonal antibodies specific for distinct regions of hen lysozyme. Nature 287, 540–542 (1980). https://doi.org/10.1038/287540a0
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DOI: https://doi.org/10.1038/287540a0
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