Table 1.

Catalytic parameters of DadA

Substratekcat (s−1)aKm (mM)akcat/Km (M−1 s−1)
d-Alanine0.74 ± 0.020.46 ± 0.051.61 × 103
d-Histidine0.84 ± 0.010.81 ± 0.071.04 × 103
d-Phenylalanine1.10 ± 0.061.07 ± 0.221.03 × 103
d-Tyrosine1.10 ± 0.091.78 ± 0.496.18 × 102
d-Proline0.97 ± 0.031.82 ± 0.215.33 × 102
d-Serine0.80 ± 0.021.65 ± 0.154.85 × 102
d-Threonine0.68 ± 0.022.47 ± 0.182.75 × 102
d-Valine0.78 ± 0.033.01 ± 0.292.59 × 102
d-Arginine1.27 ± 0.075.37 ± 0.692.36 × 102
  • a The values represent the averages of two measurements ± SD.