Figure 6
(a) Spectra of irradiated myoglobin crystals with and without nicotinamide. (b), (c) Dependence of the reduction rates k1 (b) and k2 (c) of ferric (Fe3+) myoglobin to ferrous (Fe2+) myoglobin on the nicotinamide concentration in the cryoprotectant solution, obtained from the time evolution of the absorption difference between the 566 nm and 555 nm bands. |