title: Most IgM-producing cells in the mouse secrete auto-antibodies (rheumatoid factor).
mesh_terms: D000818:Animals; D000888:Antibodies, Anti-Idiotypic; D000921:Antibody-Producing Cells / Q000276:immunology*; D007074:Immunoglobulin G; D007075:Immunoglobulin M / Q000096:biosynthesis*; D008070:Lipopolysaccharides / Q000276:immunology; D008297:Male; D051379:Mice; D008808:Mice, Inbred CBA; D011135:Polysaccharides, Bacterial / Q000276:immunology; D012217:Rheumatoid Factor / Q000096:biosynthesis*
chemical_list: D000888:Antibodies, Anti-Idiotypic; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D008070:Lipopolysaccharides; D011135:Polysaccharides, Bacterial; D012217:Rheumatoid Factor