Fig. 4

In vitro antibacterial activities of artilysins. a Inhibition zone measured by the filter paper method. The petri dish diameter is 9 mm. The spots within the black circle are the corresponding inhibition zones. The antibiotic mixture and lysozyme were specifically explained in the article. A1 was Artilysin 1, A2 was Artilysin 2, Negetive control 1 was 20 mM phosphate buffer, and Negetive control 2 was the supernatant of BL21 broken bacteria with 500 u/g SUMO enzyme. b Electron microscopy images of artificial enzyme activity on H. pylori over 2 h. Time points are expressed as h:min (scale bar, 2 µm). c In vitro antibacterial effects of 500, 10³, and 10⁴ μg/ml lysozyme on H. pylori. d In vitro antibacterial effects of 500 μg/ml artilysins on H. pylori. e In vitro antibacterial effects of 100 μg/ml artilysins on H. pylori