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Immunological identification of a high molecular weight protein as a candidate for the product of the Duchenne muscular dystrophy gene.
Abstract
An oligopeptide was synthesized based on translation of the nucleotide sequence of the putative exon region of clone pERT87-25 from the gene for Duchenne muscular dystrophy. Immunization of rabbits with this oligopeptide induced the formation of antibodies directed against a protein present in human, rat, and rabbit skeletal muscle. This protein, which is missing in the skeletal muscle of two patients with Duchenne muscular dystrophy, has a molecular mass of approximately equal to 320-420 kDa and is clearly different from the putative Duchenne muscular dystrophy-related protein nebulin. The data suggest that this 320- to 420-kDa protein is produced by the Duchenne muscular dystrophy gene.
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