title: Antibody response to the streptococcal group A-variant polysaccharide in BASILEA rabbits lacking kappa-polypeptide chains.
abstract: Rabbits from a variant strain called BASILEA, in which homozygotes express only lambda-type chains and heterozygotes have normal kappa/lambda ratios, were hyperimmunized with a streptococcal group A variant vaccine. Homozygotes (bas/bas) produced antibodies with lambda-chains, heterozygotes, however, produced predominantly antibodies with kappa-chains. The incidence of restricted high responders in the BASILEA strain was high; it was probably introduced by the original mutant rather than by the loss of kappa-chains (founder effect). The degree of heterogeneity of homozygotes is similar to the heterogeneity of heterozygotes, and to that of rabbits expressing kappa-chains. This suggests that in the rabbit, the repertoire of lambda-chain genes is of similar size to that of kappa-chain genes.
mesh_terms: D000818:Animals; D000907:Antibodies, Bacterial / Q000096:biosynthesis*; D004406:Dysgammaglobulinemia / Q000235:genetics / Q000276:immunology*; D005838:Genotype; D007126:Immunoglobulin Allotypes; D007147:Immunoglobulin Light Chains / Q000096:biosynthesis*; D007145:Immunoglobulin kappa-Chains; D007146:Immunoglobulin lambda-Chains / Q000096:biosynthesis*; D011135:Polysaccharides, Bacterial / Q000276:immunology*; D011817:Rabbits; D013297:Streptococcus pyogenes / Q000276:immunology*; D014357:Trypsin
chemical_list: D000907:Antibodies, Bacterial; D007126:Immunoglobulin Allotypes; D007147:Immunoglobulin Light Chains; D007145:Immunoglobulin kappa-Chains; D007146:Immunoglobulin lambda-Chains; D011135:Polysaccharides, Bacterial; D014357:Trypsin