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. 2005 Dec;187(24):8340–8349. doi: 10.1128/JB.187.24.8340-8349.2005

FIG. 1.

FIG. 1.

CCR of sugar-degrading enzymes in S. pneumoniae. (A) β-Galactosidase activity in wild-type and ccpA and bgaA mutant cells in the presence of the inducer lactose (L) alone compared to activity in the presence of the repressing sugar glucose (L+G) or sucrose (L+S). (B) β-Glucosidase activity in wild-type and ccpA mutant cells in the presence of the inducer cellobiose (C) compared to activity in the presence of the repressing sugar glucose (C+G). (C) α-Galactosidase activity in wild-type and ccpA mutant cells in the presence of the inducer raffinose (R) alone compared to activity in the presence of the repressing sugar sucrose (R+S). (D) α-Glucosidase activity in wild-type and ccpA mutant cells in the presence of the inducer maltose (M) alone compared to activity in the presence of the repressing sugar sucrose (M+S).