Term Name:	Pro-Hyp zwitterion
Synonyms:	(2S,4R)-4-hydroxy-1-[(2S)-pyrrolidin-1-ium-2-carbonyl]pyrrolidine-2-carboxylate, L-Pro-L-Hyp zwitterion, pro-hydroxy-pro
Definition:	A dipeptide zwitterion obtained by transfer of a proton from the carboxy to the amino terminus of Pro-Hyp. Major species at pH 7.3.
Ontology:	ChEBI [CHEBI:133733]  ( EBI )