(2~{S})-~{N}-[2-[[(2~{S})-1-[4-(aminomethyl)phenyl]-4-methylsulfonyl-butan-2-yl]amino]-2-oxidanylidene-ethyl]-2-[[(2~{S})-2-azido-3-phenyl-propanoyl]amino]-4-methyl-pentanamide

P25451 — Proteasome subunit beta type-3