title: Amino acid substitutions resulting from suppression of nonsense mutations. V. Tryptophan insertion by the Su9 gene, a suppressor of the UGA nonsense triplet.
mesh_terms: D003545:Cysteine; D004586:Electrophoresis; D004926:Escherichia coli; D005815:Genetic Code; D009154:Mutation; D010744:Phosphoric Monoester Hydrolases / Q000032:analysis; D013489:Suppression, Genetic; D014364:Tryptophan / Q000378:metabolism*
chemical_list: D014364:Tryptophan; D010744:Phosphoric Monoester Hydrolases; D003545:Cysteine