title: Antigenic differences between the ends and shafts of sex pili.
mesh_terms: D000818:Animals; D000937:Antigen-Antibody Reactions; D000942:Antigens, Bacterial; D000939:Epitopes; D004926:Escherichia coli; D005111:Extrachromosomal Inheritance; D005827:Genetics, Microbial; D008854:Microscopy, Electron; D011817:Rabbits / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial; D000939:Epitopes