title: Classification of IgG1 and IgG2 isotypes.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D005075:Biological Evolution; D005796:Genes; D006168:Guinea Pigs; D006801:Humans; D007074:Immunoglobulin G / Q000032:analysis / Q000145:classification*; D051379:Mice; D011817:Rabbits; D013045:Species Specificity
chemical_list: D007074:Immunoglobulin G