Figure 2

Strain-specific regulation of H. pylori arginase activity. Comparison of arginase activities of a native H. pylori strain and a rocF mutant strain of 26695 complemented with the corresponding rocF gene (coding region plus native rocF promoter). Strain rocF-26695-MLB001 is a rocF mutant of strain 26695 in which the wild type rocF gene from strain 43504 has been complemented. The MLB002 strain carried wild type rocF from strain SS1 and the MLB003 strain carried wild type rocF from strain J63.