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. Author manuscript; available in PMC: 2010 Dec 22.
Published in final edited form as: Biochemistry. 2009 Dec 22;48(50):11902–11911. doi: 10.1021/bi901600f

Table 2.

Inhibitor effects on tyrosyl radical EPR characteristics.

Inhibitor Linewidth (G) Linewidth (G) Relative Half-lifec Relative Initial Yieldd Relative Initial Yieldd
I firsta ROOH firstb ROOH firstb I firste ROOH firstb
None - 28.6 ± 0.4 (n=8) 1.0 1.0 1.0
Nimesulide 25.2 ± 0.5 (n=4) 27.3 ± 0.4 (n=11) 170 0.12 1.4
Flurbiprofen 28.6 ± 0.2 (n=3) 29.0 ± 0.3 (n=9) 12 0.29 1.1
Diclofenac 25.0 ± 0.5 (n=4) 28.3 ± 0.7 (n=5) 0.20 0.17 0.8
a

Preincubated with 2 eq of inhibitor before reaction with 10 eq of EtOOH for 6-8 s.

b

Reacted with 2 eq EtOOH for 6-8 s before addition of 20 eq of inhibitor (if any).

c

Normalized to the tyrosyl radical half-life in the control reacted with only EtOOH. Values are the averages of duplicate determinations.

d

Normalized to the initial tyrosyl radical intensity in the control reacted with only EtOOH. Values are the averages of duplicate determinations.

e

Preincubated with 2 eq of inhibitor before reaction with 2 eq of EtOOH for 6-8 s.