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. Author manuscript; available in PMC: 2013 Aug 29.
Published in final edited form as: Alcohol Res. 2012;34(3):339–344.

Table 2.

Kinetic Constants for Acetaldehyde Oxidation by Human Aldehyde Dehydrogenases

Enzyme KM (μM) Vmax (min−1) Vmax (min−1μM−1)
ALDH1A1 180 380 2.1
ALDH1B1 55 40 0.7
ALDH2*1 0.2 280 1400
ALDH2*2 1.4 20 14
1

Data for ALDH1A1 and ALDH2*1 from Klyosov, 1996; data for ALDH2*2 oxidation of propi-onaldehyde from Farrés et al., 1994 and data for ALDH1B1 from Stagos et al., 2010.