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Conformational conservatism of bacterial ureases. All models of bacterial ureases were from ExPASy SIB Bioinformatics Resource Portal (Q7X3W5 - H. pylori; P16122 - P. hauserii; Q6GEE4 - S. aureus); overlapping was performed with RasWin Molecular Graphics Visualisation Tool (http://rasmol.org/). A - structure of H. pylori (blue) and P. hauserii (white) ureases, B - structure of H. pylori (blue) and S. aureus (white) ureases; flap region is marked by a white ellipse.
