title: Amino acid replacements and the genetic code.
mesh_terms: D000595:Amino Acid Sequence; D055598:Chemical Phenomena; D002621:Chemistry; D004586:Electrophoresis; D004926:Escherichia coli / Q000201:enzymology; D005815:Genetic Code; D006836:Hydro-Lyases; D006898:Hydroxylamines / Q000494:pharmacology; D009153:Mutagens / Q000494:pharmacology; D009154:Mutation / Q000187:drug effects; D009573:Nitrites / Q000494:pharmacology; D011687:Purines / Q000494:pharmacology
chemical_list: D006898:Hydroxylamines; D009153:Mutagens; D009573:Nitrites; D011687:Purines; D006836:Hydro-Lyases