title: Nucleotide sequences of variable region segments of the immunoglobulin heavy chain of Xenopus laevis.
mesh_terms: D000818:Animals; D007143:Immunoglobulin Heavy Chains / Q000235:genetics*; D007135:Immunoglobulin Variable Region / Q000235:genetics*; D008099:Liver / Q000276:immunology; D051379:Mice; D014982:Xenopus laevis / Q000276:immunology*
chemical_list: D007143:Immunoglobulin Heavy Chains; D007135:Immunoglobulin Variable Region