Term Name:	His-Ala zwitterion
Synonyms:	(2S)-2-{[(2S)-2-azaniumyl-3-(1H-imidazol-4-yl)propanoyl]amino}propanoate, H-A zwitterion, histidylalanine zwitterion, L-His-L-Ala zwitterion
Definition:	A dipeptide zwitterion obtained by transfer of a proton from the carboxy to the amino terminus of His-Ala. Major species at pH 7.3.
Ontology:	ChEBI [CHEBI:133630]  ( EBI )