title: The problem of antibody diversity. Immunodifferentiation versus somatic mutation.
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D000818:Animals; D000906:Antibodies / Q000032:analysis; D000917:Antibody Formation; D000918:Antibody Specificity; D000921:Antibody-Producing Cells; D001666:Binding Sites, Antibody; D002454:Cell Differentiation; D002875:Chromosomes; D002999:Clone Cells / Q000378:metabolism; D003429:Cross Reactions; D004247:DNA / Q000032:analysis; D000939:Epitopes; D006241:Haptens; D006801:Humans; D007108:Immune Tolerance; D007128:Immunoglobulin Fragments / Q000032:analysis; D007136:Immunoglobulins / Q000096:biosynthesis; D009154:Mutation; D012333:RNA, Messenger / Q000378:metabolism; D013698:Templates, Genetic; D014158:Transcription, Genetic
chemical_list: D000596:Amino Acids; D000906:Antibodies; D000939:Epitopes; D006241:Haptens; D007128:Immunoglobulin Fragments; D007136:Immunoglobulins; D012333:RNA, Messenger; D004247:DNA