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. Author manuscript; available in PMC: 2021 Dec 30.
Published in final edited form as: J Nutr Biochem. 2011 Sep 15;23(8):953–960. doi: 10.1016/j.jnutbio.2011.05.001

Table 2.

Inhibition of NADH Oxidase Activity by Theaflavins

NDH-1 Deamino-NADH oxidasea NDH-2 NADH oxidaseb
Inhibitor IC50 Maximum inhibition IC50 Maximum inhibition
(μM)c (%)c (μM)c (%)c
TF1 45 95 3.0 75
TF2A 15 95 3.5 95
TF2B 8 95 2.5 90
TF3 7 90 1.5 95
EGCG 20 90 20 65
a

NDH-1 activity using deamino-NADH was about 0.5 μmoles deamino-NADH/min/mg protein

b

NDH-2 activity using NADH was about 0.25 μmoles NADH/min/mg protein

c

IC50 concentrations and maximum inhibition % were determined from two replicates of 5-6 concentrations of inhibitor. The data are displayed in Supplementary Figure2.