The molecule is trianion of UDP-N-acetylmuramoyl-L-alanyl-gamma-D-glutamyl-L-lysyl-D-alanyl-D-alanine(3-) arising from deprotonation of diphosphate and carboxy groups and protonation of the side-chain amino group of the lysyl residue; major species at pH 7.3. It is a nucleotide-sugar oxoanion and a peptide anion. It is a conjugate base of an UDP-N-acetylmuramoyl-L-alanyl-gamma-D-glutamyl-L-lysyl-D-alanyl-D-alanine.
(2R)-2-[[(2S)-2-[[(2R)-2-[(3R,4R,5S,6R)-3-acetamido-2-[[[(2R,3S,4R,5R)-5-(2,4-dioxopyrimidin-1-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl]oxy-oxidophosphoryl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxypropanoyl]amino]propanoyl]amino]-5-[[(2S)-6-azaniumyl-1-[[(2R)-1-[[(1R)-1-carboxylatoethyl]amino]-1-oxopropan-2-yl]amino]-1-oxohexan-2-yl]amino]-5-oxopentanoate