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Distribution of the proteases in P. gingivalis FLL93. Activities against BApNA (A and C) and ALNA (B and D) were tested in whole-cell culture (WC), cell-free medium (CF), cell suspension (CS), vesicle medium (V), and vesicle-free medium (VF) of P. gingivalis W83 (A and B) and P. gingivalis FLL93 (C and D) grown to stationary phase (OD600 of 1.4 to 1.5). The activity of WC for each strain was assumed to equal 100%. WC = CS + CF; CF = V + VF.
