Figure 2.
Alignment of the amino acid sequences for horse-heart Cyt c: R. capsulatus (RccycY), R. sphaeroides (RscycY), P. denitrificans (PdcycM), and Bradyrhizobium japonicum (BjcycM) Cyt cy homologs. Black and gray boxes correspond to identical residues and conserved substitutions, respectively. The Cyt c domains and CXYCH heme binding motifs are indicated by an arrow and asterisks, respectively. Dots represent the key Lys residues known to be important for the interaction of equine Cyt c with its various redox partners (24, 25).