Fig. 3From: YPTB3816 of Yersinia pseudotuberculosis strain IP32953 is a virulence-related metallo-oligopeptidaseEffects of divalent cations on the hydrolysis of Abz-NKPRRPQ-EDDnp (20 μM) by OpdA. A star denotes a statistically significant difference compared to the test conducted in the absence of a cation. Mean values ± SD of three readings from each of two independent experiments are shownBack to article page