Publication year: 2011 Source: Chemical Physics, Available online 16 September 2011 Cristina Consani, Olivier Bräm, Frank van Mourik, Andrea Cannizzo, Majed Chergui Using broadband UV-vis femtosecond transient absorption and fluorescence up-conversion, we investigate the interaction between the haem moiety of ferric and ferrous Horse Heart Cytochrome c and its single Tryptophan (Trp) residue and the energy dissipation mechanisms upon excitation at various wavelengths in the visible and the UV. Varying the amount of energy deposited in the haem does not affect the relaxation and cooling processes.
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Energy transfer and relaxation mechanisms in Cytochrome C