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. Author manuscript; available in PMC: 2008 Jan 18.
Published in final edited form as: J Am Chem Soc. 2007 Jun 26;129(28):8714–8715. doi: 10.1021/ja0734391

Table 1.

Kinetic parameters for TmTK substrates at 37°C & 82°C.

substrate KM (μM) kcat (s−1) kcat/KM × 104 (M−1 s−1) relative efficiency Hill coef.
T (37°C) 0.5 ± 0.2 0.3 ± 0.08 60 1 0.98
T (82°C) 1.0 ± 0.15 3.5 ± 0.3 350 5.8 1.1

ATP (37°C) 40 ± 12 0.4 ± 0.04 1.0 1 1.13
ATP (82°C) 187 ± 21(K0.5) 3.5 ± 0.3 1.8 1.8 2.4

AZT (37°C) 0.65 ± 0.2 0.29 ± 0.03 45 1 -
AZT (82°C) 8.7 ± 3 1.6 ± 0.29 18 0.4 -