Table 1. kcat of ATP or dATP hydrolysis by RecANg and RecAEc in the presence of Mg2+.
k cat of ATP hydrolysis [min−1] | ||||
RecANg | RecAEc | |||
10 mM Mg2+ | 3 mM Mg2+ | 10 mM Mg2+ | 3 mM Mg2+ | |
ATP | 44.74 (±1.10) | 51.21 (±3.77) | 28.25 (±0.88) | 31.67 (±1.59) |
dATP | 59.66 (±0.58) | 63.46 (±1.23) | 40.38 (±2.24) | 45.23 (±1.47) |
In all experiments the concentrations of RecA protein and M13mp18 css DNA are 10 µM and 5 µMnt, respectively. kcat was calculated over a linear range of rates from 4 to 14 minutes for all experiments. Time zero represents the addition of 3 mM ATP and 0.5 µM SSB. Averages and standard deviations were calculated from values from 3 independent experiments.