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. 2013 Jul 25;33(4):e00053. doi: 10.1042/BSR20130073

Table 1. Kinetic constants for an ordered sequential bi bi kinetic model.

Reaction Fitted parameters
Forward
Vmax (μmol min−1 mg of protein−1) 14.6±3.5
KmATP (μM) 221±41
Kmsulfate (μM) 1,030±280
Reverse
Vmax (μmol min−1 mg of protein−1) 58.8±11.5
KmAPS (μM) 28.3±0.8
Kmpyrophosphate (μM) 76.2±7.4