{2-[2-(2-{4-[(1E)-4-{[(2S)-1-{[(1R)-1-(dihydroxyboranyl)-3-methylbutyl]amino}-1-oxo-3-phenylpropan-2-yl]amino}-4-oxobut-1-en-1-yl]-1H-1,2,3-triazol-1-yl}ethoxy)ethoxy]ethoxy}acetic acid

P23724 — Proteasome subunit beta type-6