Term Name:	diphthamide
Synonyms:	(2S)-1-amino-4-{4-[(2S)-2-amino-2-carboxyethyl]-1H-imidazol-2-yl}-N,N,N-trimethyl-1-oxobutan-2-aminium, 2-(3-Carboxyamido-3-(trimethylammonio)propyl)histidine, 2-[(3R)-3-carbamoyl-3-(trimethylammonio)propyl]-L-histidine, Diphthamide
Definition:	A quaternary ammonium ion that is the derivative of L-histidine having a 4-amino-4-oxo-3-(trimethylammonio)butyl group at the 2-position of the imidazole ring.
Ontology:	ChEBI [CHEBI:15949]  ( EBI )