title: DNA rearrangements linked to expression of a predominant surface antigen gene of trypanosomes.
mesh_terms: D000818:Animals; D000954:Antigens, Surface / Q000235:genetics*; D005786:Gene Expression Regulation; D009876:Operon; D011995:Recombination, Genetic; D014346:Trypanosoma brucei brucei / Q000235:genetics / Q000276:immunology*
chemical_list: D000954:Antigens, Surface