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Gingipain activity and outer membrane vesicle production analysis of ATCC 33277 wild‐type and ∆ompA mutants. (A) Arg‐ and Lys‐gingipain activity assessed as previously described (Iwami et al., 2007). WC, whole cell, S = supernatant. (B) Vesicle number was quantified using a qNANO (iZON Science). Error bars are ± SEM (n = 3). Statistical significance was determined by students’ t‐test and designated as **p < .01, ***p < .001, ****p < .0001
