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. 2011 Nov 2;287(1):48–57. doi: 10.1074/jbc.M111.264614

TABLE 2.

Summary of kinetic properties of IDE, IDER429S, and IDEK898A,K899A,S901A with Abz-GGFLRKHGQ-EDDnp as a substrate

IDE IDER429S IDEK898A,K899A,S901A
Vmax (nmol/min/mg) 47.2 ± 1.7 42.3 ± 3.2 140.8 ± 5.5
kcat (min−1) 5.2 ± 0.2 4.7 ± 0.3 15.5 ± 0.6
Km (mm) 9.6 ± 0.7 21.3 ± 2.4 17.3 ± 1.0
Hill coefficient 2.1 ± 0.3 1.7 ± 0.2 1. 7 ± 0.1