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. Author manuscript; available in PMC: 2008 Aug 19.
Published in final edited form as: Biochemistry. 2007 Jan 23;46(3):659–668. doi: 10.1021/bi061515r

Table 2.

Kinetic Constants for TvPNP with Various Substrates

Substrate Km (μM) kcat (s-1) kcat/Km (M-1 s-1)
Adenosine 6.1 ± 0.5 1.7 ± 0.2 2.78 × 105
Guanosine 59.7 ± 8.1 1.1 ± 0.1 1.8 × 104
Inosine 25 ± 1 1.8 ± 0.1 7.2 × 104
pNPR 90 ± 42 1.0 ± 0.1 × 10-3 1.1