Term Name:	E64 zwitterion
Synonyms:	(2S,3S)-3-{[(1S)-1-[(4-{[amino(iminiumyl)methyl]amino}butyl)carbamoyl]-3-methylbutyl]carbamoyl}oxirane-2-carboxylate, E64
Definition:	Zwitterionic form of E64, a compound isolated from Aspergillus japonicus, resulting from transfer of a proton from the carboxy to the guanidino group; major species at pH 7.3.
Ontology:	ChEBI [CHEBI:192370]  ( EBI )