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. 2022 Jun 2;12(6):777. doi: 10.3390/biom12060777

Figure 5.

Figure 5

ChT-L peptidase of proteasome was activated up to 3-fold with 50 µM M-5 and M-7 in cell extracts prepared from HEK293T cells. M-12 failed to stimulate the ChT-L peptidase in cell lysates, exactly as with the purified 20S proteasome. The selective proteasome inhibitor, 1 µM bortezomib, used as a negative control, completely blocked the cell capacity of degrading Suc-LLVY-AMC substrate. The results are presented as the mean of three independent replicates ± SEM. Ordinary one-way ANOVA analysis was used to determine statistical significance (* p < 0.05).