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. Author manuscript; available in PMC: 2011 Dec 15.
Published in final edited form as: Arch Biochem Biophys. 2010 Sep 15;504(2):182–189. doi: 10.1016/j.abb.2010.09.005

Table 3.

Kinetic parameters for CDNB metabolism.

Isoform Treatment KM (mM) Vmax (μmol min−1 mg−1) kcat (s−1) Catalytic efficiency (kcat/KM, s−1 mM−1)
GST A1-1 Control 0.31 ± 0.06 41 ± 3 35 ± 2 113 ± 24
+HNE 0.5 ± 0.2 31 ± 4 27 ± 4 58 ± 23
GST A4-4 Control 1.2 ± 0.1 6.3 ± 0.4 5.4 ± 0.4 4.4 ± 0.6
+HNE 1.4 ± 0.5 6 ± 1 5 ± 1 3.5 ± 1.4
GST P1-1 Control 1.7 ± 0.2 95 ± 8 74 ± 6 43 ± 7
+HNE 1.0 ± 0.2 30 ± 3 23 ± 2 24 ± 5