Using a panel of antibodies specific for H and L chain variable region subgroups, a panel of human monoclonal cold agglutinin (CA) and rheumatoid factor (RF) autoantibodies were analyzed. The vast majority of the two types of autoantibodies utilized VkIII L chains, many of which probably derive from the Humkv325 gene. However, while most RFs (77%) utilized VHI H chains, all the CAs used VHII subgroup H chains. These results are consistent with a model of autoantibody generation, wherein binding specificity is H chain defined in a set of antibodies that use a multipotential L chain.
Distinct patterns of heavy chain variable region subgroup use by human monoclonal autoantibodies of different specificity.
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G J Silverman, F Goñi, J Fernandez, P P Chen, B Frangione, D A Carson; Distinct patterns of heavy chain variable region subgroup use by human monoclonal autoantibodies of different specificity.. J Exp Med 1 December 1988; 168 (6): 2361–2366. doi: https://doi.org/10.1084/jem.168.6.2361
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