The molecule is a lipopeptide consisting of the methyl ester of a D-Phe-N-Me-L-Val-L-Ile-L-Phe-L-Ala hexapeptide, to the nitrogen of the D-phenylalanine residue of which is linked a C20 (icosanoyl) fatty-acyl chain. It is a major cell wall lipopeptide of Mycobacterium avium ssp. paratuberculosis (MAP), the causative agent of Johne's disease in cattle and other ruminants. It has a role as an antigen. It is a lipopeptide and a methyl ester.
methyl (2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2R)-2-(icosanoylamino)-3-phenylpropanoyl]-methylamino]-3-methylbutanoyl]amino]-3-methylpentanoyl]amino]-3-phenylpropanoyl]amino]propanoate