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. 2018 Nov 21;9:2837. doi: 10.3389/fmicb.2018.02837

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Copyright © 2018 Dragomirova, Rothe, Schwoch, Hartwig, Pinske and Sawers.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Appearance of HupSL enzyme activity is dependent on a functional selenocysteine biosynthetic apparatus. Crude extracts (100 μg of protein, except M4100 where 30 μg of protein were applied) of the indicated strains were separated in native-PAGE and stained for hydrogenase enzyme activity as described in the legend to Figure 1. Strains used include: MC4100 (wild type); FTD150 (ΔhyaBΔhybCΔhycE ΔhyfG); FTD147ΔselC (ΔhyaBΔhybCΔhycE ΔselC).