title: Isolation and characterization of a precursor form of the 'A' subunit of cholera toxin.
mesh_terms: D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D002772:Cholera Toxin / Q000096:biosynthesis*; D046911:Macromolecular Substances; D008970:Molecular Weight; D011498:Protein Precursors / Q000302:isolation & purification*; D014734:Vibrio cholerae / Q000378:metabolism
chemical_list: D000596:Amino Acids; D046911:Macromolecular Substances; D011498:Protein Precursors; D002772:Cholera Toxin