Table 2.
Kinetic constants for mTGR using different disulfides as substrates.
Disulfide | mTGR | ||
---|---|---|---|
Km | k cat | k cat /Km | |
(μM) | (S−1) | (M−1 S−1) | |
Trx-S2 T. crassiceps | 0.87 | 0.47 | 5.4 x 105 |
Trx-S2 P. falciparum | 28.3 | 0.81 | 2.8 x 104 |
Trx-S2 H. sapiens | 21.3 | 0.44 | 2.1 x 104 |
GSSG | 41.4 | 0.84 | 2.0 x 104 |
DTNB | 34.5 | 0.30 | 8.7 x 103 |
Date obtained using 100 μM NADPH at 25°C and pH 7.8.