title: Structure and organization of immunoglobulin VH genes in Heterodontus, a phylogenetically primitive shark.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D004247:DNA / Q000235:genetics; D005796:Genes; D007127:Immunoglobulin Constant Regions / Q000235:genetics; D007143:Immunoglobulin Heavy Chains / Q000235:genetics*; D007135:Immunoglobulin Variable Region / Q000235:genetics*; D051379:Mice; D010802:Phylogeny; D012333:RNA, Messenger / Q000235:genetics; D012754:Sharks / Q000235:genetics* / Q000276:immunology; D013045:Species Specificity
chemical_list: D007127:Immunoglobulin Constant Regions; D007143:Immunoglobulin Heavy Chains; D007135:Immunoglobulin Variable Region; D012333:RNA, Messenger; D004247:DNA