Isolation and characterization of cDNA encoding a human nuclear antigen predominantly recognized by autoantibodies from patients with primary biliary cirrhosis.

Abstract excerpt

Autoantibodies to a novel nuclear Ag, Sp100, have recently been described that recognize a nuclear protein with an apparent molecular mass of 95 to 100 kDa and a dot-like distribution within cell nuclei. By immunoscreening of a lambda gt11 cDNA expression library derived from HeLa cells with an anti-Sp100 autoimmune serum a 0.7-kb cDNA (Sp26) coding for a fragment of Sp100 was isolated. Expression of this cDNA...

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