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Figure 4 | BMC Microbiology

Figure 4

From: Expression of urease by Haemophilus influenzaeduring human respiratory tract infection and role in survival in an acid environment

Figure 4

Urease activity of mutants. Results of urease assays with wild type, mutants and complemented mutant as noted at bottom. Urease activity is expressed on the Y-axis as μmoles of urea hydrolyzed per minute. Results are the mean of 3 independent assays and error bars denote standard deviation. Urease activity was undetectable in ureC mutant and ure operon mutant.

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