The molecule is an oligopeptide that is an analogue of bradykinin in which the third amino acid, proline, is replaced with hydroxyproline. It has a role as a human urinary metabolite and a bradykinin receptor agonist. It is an oligopeptide and a peptide hormone. It derives from a bradykinin. It is a conjugate base of a [Hyp(3)]-bradykinin(2+).
(2S)-2-[[(2S)-2-[[(2S)-1-[(2S)-2-[[(2S)-2-[[2-[[(2S,4R)-1-[(2S)-1-[(2S)-2-amino-5-(diaminomethylideneamino)pentanoyl]pyrrolidine-2-carbonyl]-4-hydroxypyrrolidine-2-carbonyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-3-hydroxypropanoyl]pyrrolidine-2-carbonyl]amino]-3-phenylpropanoyl]amino]-5-(diaminomethylideneamino)pentanoic acid