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Physical map of the area around the PGN_2005 gene and pigmentation of PGN_2005 mutant. Physical map of the PGN_2005 gene region (A). A triangle indicates the Tn4400' insertion site of the PGN_2005 insertion mutant. Colony pigmentation (B). Porphyromonas gingivalis cells were anaerobically grown on blood agar plates at 35°C for 2 days.
