we propose that the redox sensitivity of the formyl mode and the fe-n-o mode results from an interaction between cytochrome a2+ ( 3 ) ( no ) and the cytochrome a-cua pair , and is linked to the cytochrome a3 ( no ) by the coupling between cub and the no-bound cytochrome a3 heme .
C0030012
redox
C0010798
cytochrome