Term Name:	tryptophan zwitterion
Synonyms:	2-ammonio-3-(1H-indol-3-yl)propanoate, 2-azaniumyl-3-(1H-indol-3-yl)propanoate
Definition:	An amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of tryptophan; major species at pH 7.3.
Ontology:	ChEBI [CHEBI:64554]  ( EBI )