Cationic residues in pathogenic anti-DNA autoantibodies arise by mutations of a germ-line gene that belongs to a large VH gene subfamily.

Abstract excerpt

The F1 progeny of autoimmune NZB and normal SWR mice uniformly develop severe and accelerated lupus nephritis. The (SWR x NZB)F1 mice produce an oligoclonally expanded population of nephritogenic anti-DNA autoantibodies that share a recurrent cross-reactive idiotype (Id564), use highly homologous VH genes and surprisingly have the CH region allotype of the normal SWR parent. From extensive library analyses, we...

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