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. 2002 Aug;184(15):4240–4245. doi: 10.1128/JB.184.15.4240-4245.2002

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Copyright © 2002, American Society for Microbiology

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FIG. 1. — pH-dependent steady-state kinetic parameters for wild-type Cab and Cab variants. CO₂ hydration was measured at 25°C in 50 mM buffer with an ionic strength of 0.1 M. The observed steady-state parameters were determined over a pH range of 6.4 to 9.0. (A) k_cat values for wild-type (filled circles), D34A (filled squares), R36A (open circles), and D34A-R36A (open squares) enzymes are shown. (B) k_cat/K_m values for wild-type (filled circles), D34A (filled squares), R36A (open circles), and D34A-R36A (open squares) enzymes are shown.