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Title: Precipitating and non-precipitating complement consuming IgG subclass antibodies in pigeon breeders' disease. Author: de Ridder G, Berrens L. Journal: Immunobiology; 1979 Aug; 156(1-2):168-78. PubMed ID: 540968. Abstract: The sera of patients with pigeon breeder's disease usually contain precipitating serum factors as well as human complement consuming factors as shown by incubation of the serum with pigeon dropping antigens. Although a single serum factor, possibly an IgG antibody, might account for both phenomena, affinity chromatography experiments revealed that the sera of patients with pigeon breeders' disease contain non-recipitating, human complement consuming, serum factors besides precipitating serum factors which are also capable of complement consumption. The non-precipitating serum factors most likely belong to the IgG3 immunoglobulin subclass, whereas the precipitating antibodies belong to the subclasses IgG1 and IgG2.[Abstract] [Full Text] [Related] [New Search]