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. 2005 Dec;14(12):3013–3024. doi: 10.1110/ps.051575005

Table 2.

Kinetic parameters for hydrolysis of NPPC by pneumococcal Pce in buffer A at different Zn2+ concentrations

[Zn2+] (μM) Km (mM) kcat (s−1) kcat/Km (mM−1 s−1)
3 0.17 ± 0.02 9.8 ± 0.2 57 ± 6
200 0.9 ± 0.1 10.5 ± 0.2 12 ± 1
400 1.2 ± 0.2 10.0 ± 0.3 8.3 ± 0.6
800 2.2 ± 0.4 9.9 ± 0.2 4.5 ± 0.2

Measurements were carried out at 25°C (I = 0.05).