title: CH isotype 'switching' during normal B-lymphocyte development.
mesh_terms: D000818:Animals; D000955:Antigens, T-Independent; D001402:B-Lymphocytes / Q000145:classification / Q000166:cytology / Q000276:immunology*; D002454:Cell Differentiation; D002999:Clone Cells / Q000276:immunology; D000939:Epitopes; D005786:Gene Expression Regulation; D006801:Humans; D007127:Immunoglobulin Constant Regions / Q000235:genetics*; D007143:Immunoglobulin Heavy Chains / Q000235:genetics*; D007136:Immunoglobulins / Q000235:genetics*; D008070:Lipopolysaccharides / Q000494:pharmacology; D008213:Lymphocyte Activation; D008934:Mitogens; D011947:Receptors, Antigen, B-Cell / Q000276:immunology
chemical_list: D000955:Antigens, T-Independent; D000939:Epitopes; D007127:Immunoglobulin Constant Regions; D007143:Immunoglobulin Heavy Chains; D007136:Immunoglobulins; D008070:Lipopolysaccharides; D008934:Mitogens; D011947:Receptors, Antigen, B-Cell