The molecule is a peptide zwitterion obtained by transfer of a proton from the carboxy to the amino terminus of dapdiamide B; major species at pH 7.3. It has a role as a bacterial metabolite. It is a tautomer of a dapdiamide B.
(2S,3S)-2-[[(2S)-3-[[(E)-4-amino-4-oxobut-2-enoyl]amino]-2-azaniumylpropanoyl]amino]-3-methylpentanoate