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Fig. 5 | BMC Microbiology

Fig. 5

From: PgFur participates differentially in expression of virulence factors in more virulent A7436 and less virulent ATCC 33277 Porphyromonas gingivalis strains

Fig. 5

Total proteolytic (a) and gingipain activities (b) of P. gingivalis wild-type (A7436 and ATCC 33277) and pgfur mutant (TO6 and TO16) strains. Bacteria were grown under high- (Hm) or low-iron/heme (DIP) conditions in liquid culture medium for 24 h and proteolytic activity of whole cultures against azocasein (a) or protease substrates specific for arginine- (Rgp) or lysine-specific (Kgp) gingipains was determined. *P < 0.05, **P < 0.01, ***P < 0.001

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BMC Microbiology

ISSN: 1471-2180

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