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. 2013 Oct 12;3:453–458. doi: 10.1016/j.fob.2013.10.005

Fig. 2.

Fig. 2

In vitro ubiquitination of JosK117-only. All reactions are monitored at t = 0, 3 and 20 h. Lanes 1–3: reaction using commercial enzymes (0.16 μM E1, 8 μM UbcH5a and 1 μM CHIP), 50 μM ubiquitin and 12 μM JosK117-only at room temperature [27]. Lanes 4–6: reaction using commercial enzymes (1 μM E1, 8 μM UbcH5a, 8 μM CHIP), 250 μM ubiquitin and 50 μM JosK117-only. Lanes 7–9: reaction using enzymes prepared in the lab at the final concentrations as in lanes 4–6. Lanes 10–12: reaction using Josephin pre-treated with IAA. Lane 13: purified mono-ubiquitinated JosK117-only. Lane 14: molecular weight marker. Di-ubiquitin and poly-ubiquitin chains are indicated with arrows. The bands of E1, E2 and E3 enzymes are indicated with annotation below each corresponding band. The Addgene clone of UbcH5a used for the production in the lab comprise an initial sequence deriving from cloning which explains the higher MW with respect to the commercial enzyme.