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. Author manuscript; available in PMC: 2008 Jul 20.
Published in final edited form as: J Mol Biol. 2007 May 22;370(4):742–751. doi: 10.1016/j.jmb.2007.05.021

Table 2.

Kinetic parameters of wild-type and selected chimeras with nucleoside analogs.

ddC d4T
kcat (s−1) KM (μM) kcat/KM (M−1s−1) kcat (s−1) KM (μM) kcat/KM (M−1s−1)


hTK2 nd nd nd nd nd nd
DmdNK 1.5 ± 0.1 380 ± 20 3.9 × 103 nd nd nd
HD-16 0.42 ± 0.01 1240 ± 110 3.4 × 102 0.07 ± 0.01 66.3 ± 10.3 1.1 × 103
HDHD-12 1.5 ± 0.1 135 ± 11 1.1 × 104 0.29 ± 0.01 148 ± 17 1.9 × 103