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. 2022 Jan 13;18(4):422–431. doi: 10.1038/s41589-021-00952-x

Extended Data Fig. 8. Generation of SMAC with homogeneous K48 linkages.

Extended Data Fig. 8

(a) Synthesis and purification scheme to generate SMAC-K48Ubn from multiple-mono Ub primed SMAC-Ub1-3. (b) His-TEV-Ub, UBE2R1, and BIRC2 were reacted with SMAC-Ub1-3 and varying lengths of SMAC-K48Ubn are isolated using (c) final Superdex 75 gel filtration step. (d) Non-reduced SDS-PAGE showing ubiquitination of SMAC-K48Ub3-6 (Fraction 3 from b,c) catalyzed by indicated UBE2K variants. Asterisks (*) indicate fluorescent-labeled Ub. (e) Plots of Ub* transferred to SMAC-K48Ub3-6 from d, data normalized to UBE2KWT and presented as mean value ± SD from three independent experiments (n = 3).

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