Figure 1.
Glutamyl-tRNA synthetase 1 (GluRS1) activity in A. ferrooxidans extracts. Specific activity of GluRS1 in extracts from A. ferrooxidans treated with 1 mM H2O2 for 30 min was measured. Control extract was prepared from cells not treated with H2O2. The mean ± SD values for pmol of Glu-tRNA2Glu/µg protein formed after 15 min in three different extracts for each condition are shown.