Table 1. Enzyme-kinetic constants for TM0159 determined at pH 9.0.

Substrate	K m (mM)	k cat (s−1)	k cat/K m (M −1 s−1)	Temperature (K)
XTP	0.11 ± 0.03	2.70 ± 0.25	2.45 × 104	323
ITP	0.06 ± 0.01	3.90 ± 0.35	6.50 × 104	323
dITP	0.07 ± 0.02	5.46 ± 0.35	7.80 × 104	323
XTP	1.69 ± 0.67	22.08 ± 6.02	1.31 × 104	353
ITP	0.51 ± 0.28	13.87 ± 3.63	2.72 × 104	353
dITP	0.45 ± 0.17	18.68 ± 2.36	4.15 × 104	353