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. 2017 Mar 23;8:441. doi: 10.3389/fmicb.2017.00441

FIGURE 6.

FIGURE 6

Effect of NaCl on the activity and stability of H8. (A) Effect of NaCl on the activity of H8. The activity was measured at 35°C in 50 mM Tris-HCl buffer with different concentrations of NaCl. The activity in 0 M NaCl (70.9 U/mg) was taken as 100%. (B) Effect of NaCl on the stability of H8. The enzyme was incubated at 0°C for 1 h in buffers containing NaCl ranging from 0 to 4.6 M. The remaining activity was measured under optimal conditions. The activity in 0 M NaCl (68.6 U/mg) was taken as 100%. The graphs show data from triplicate experiments (mean ± SD).