Figure 4.

Relative frequency of the heme interacting amino acids. (A) Relative frequency of residues in heme b (HEM), heme c (HEC), and heme b and c (ALL); (B) the relative frequency of the 5 residues with or without them as axial heme ligands.

Li et al. BMC Structural Biology 2011 11:13   doi:10.1186/1472-6807-11-13
Download authors' original image