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The glomerular basement membrane antigen in Goodpasture syndrome is a collagenase-resistant molecule with a monomer molecular weight of about 26,000. Type IV collagen isolated from glomerular basement membrane contains collagenase-resistant sequences within its structure. Polyacrylamide gel electrophoresis, enzyme-linked immunosorbent assay, and chemical analysis were used to demonstrate that the collagenase-resistant sequences of type IV collagen contain Goodpasture antigen.
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Wieslander et al. (1984) studied this question.
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