The molecule is a glycopeptide consisting of the Ara6 epitope attached to a Thr-Thr-Tyr-Val-Val-Asn-Pro-NH2 heptapeptide via a [(2-hydroxyethoxy)imino]acetyl linker. It contains a beta-D-Araf-(1->2)-alpha-D-Araf-(1->5)-[beta-D-Araf-(1->2)-alpha-D-Araf-(1->3)]-alpha-D-Araf-(1->5)-alpha-D-Araf-yl group.
(2S)-1-[(2S)-4-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S,3R)-2-[[(2S,3R)-2-[[(2E)-2-[2-[(2S,3S,4S,5R)-5-[[(2S,3S,4S,5R)-4-[(2S,3S,4R,5R)-3-[(2S,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-5-[[(2S,3S,4R,5R)-3-[(2S,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]oxymethyl]-3-hydroxyoxolan-2-yl]oxymethyl]-3,4-dihydroxyoxolan-2-yl]oxyethoxyimino]acetyl]amino]-3-hydroxybutanoyl]amino]-3-hydroxybutanoyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-methylbutanoyl]amino]-3-methylbutanoyl]amino]-4-oxobutanoyl]pyrrolidine-2-carboxamide