title: Absence of nucleotide sequence homology between genes for Vibrio cholerae toxin and Vibrio fluvalis.
mesh_terms: D001483:Base Sequence; D002772:Cholera Toxin / Q000235:genetics*; D005798:Genes, Bacterial; D009693:Nucleic Acid Hybridization; D014733:Vibrio / Q000235:genetics*
chemical_list: D002772:Cholera Toxin