Fig. 5
From: The molecular and functional characterization of ferritins in the hard tick Hyalomma rufipes
The iron chelating activity of rHrFer1 and rHrFer2 detected using the Fe2+ chelating reagent phenazine. Horse apoferritin was used as a positive control. rHrFer1 has stronger iron chelating ability than rHrFer2 under the same conditions. There was a significant difference between iron chelation by rHrFer1 and rHrFer2 and the control when the concentration of phenazine was above 60 μg/mL (df = 16, P < 0.05). OD Optical density