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. Author manuscript; available in PMC: 2011 Jul 15.
Published in final edited form as: Free Radic Biol Med. 2010 Apr 18;49(2):268–274. doi: 10.1016/j.freeradbiomed.2010.04.012

Figure 7. Different stability of the L-cysteine-bound DNIC under aerobic and anaerobic conditions.

Figure 7

A), the EPR spectra of the L-cysteine-bound DNIC. The L-cysteine-bound DNIC (20 µM) (spectrum a) was incubated under anaerobic (spectrum b) or aerobic (spectrum c) conditions at 37°C for 20 min. B), decomposition kinetics of the L-cysteine-bound DNIC under aerobic (closed circles) or anaerobic (open circles) conditions. At indicated time points, aliquot was taken from the incubation solutions for the EPR measurements. The amplitudes of the EPR signal at g = 2.04 of the L-cysteine-bound DNIC were plotted as a function of incubation time.