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. Author manuscript; available in PMC: 2016 Jan 19.
Published in final edited form as: Chembiochem. 2014 Dec 4;16(2):284–292. doi: 10.1002/cbic.201402491

Figure 2.

Figure 2

Structures of bifunctional proteasome probes, each comprising the β1/β1i-selective proteasome inhibitor UKP1-3 (A) coupled with another peptide epoxyketone proteasome inhibitor (B) via a hydrocarbon or polyethylene glycol linker (C).