Protein–Protein Interactions Between Native Ro52 and Immunoglobulin G Heavy Chain

Abstract excerpt

Using a yeast two-hybrid system to search for proteins interacting with Ro52 autoantigen, we identified a novel protein-protein interaction. Two different cDNA clones, which interacted with Ro52 in the yeast two-hybrid system, were identified and isolated from a human B-cell library. Surprisingly, both clones encoded the heavy chain of human IgG1. The expression of both HIS3 and beta-galactosidase reporter genes...

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