title: Expression of an unidentified immunoglobulin isotype on rabbit Ig-bearing lymphocytes.
abstract: A non-IgM immunoglobulin molecule was found on most rabbit Ig-bearing lymphocytes isolated from mesenteric lymph nodes. Membrane bound immunoglobulin light chains and heavy chains were detected by immunofluorescence and by rosetting with antibody-coated erythrocytes on mesenteric lymph node cells stripped of IgM by anti-IgM allotype antibodies. The percentage of cells bearing these residual immunoglobulin molecules was similar to the percentage of cells bearing immunoglobulin before "stripping" with anti-IgM antibody. These residual immunoglobulin molecules were not IgA nor IgG and are believed to be the rabbit analogue of human IgD.
mesh_terms: D000818:Animals; D005455:Fluorescent Antibody Technique; D007126:Immunoglobulin Allotypes; D007143:Immunoglobulin Heavy Chains; D007147:Immunoglobulin Light Chains; D007075:Immunoglobulin M; D008198:Lymph Nodes / Q000276:immunology; D008214:Lymphocytes / Q000276:immunology*; D011817:Rabbits; D011947:Receptors, Antigen, B-Cell; D012397:Rosette Formation
chemical_list: D007126:Immunoglobulin Allotypes; D007143:Immunoglobulin Heavy Chains; D007147:Immunoglobulin Light Chains; D007075:Immunoglobulin M; D011947:Receptors, Antigen, B-Cell