7.1.1.3	cytochrome	the oxidase contains cytochrome b, cytochrome o	714285	
7.1.1.3	heme	-	715509, 741988, 742754	
7.1.1.3	heme	heme b and heme o3	714139, 714169, 714308, 714331, 716311	
7.1.1.3	heme	heme b562	714131	
7.1.1.3	heme	heme d and heme b558	716735	
7.1.1.3	heme	hemes B and O	715000	
7.1.1.3	heme	low-spin heme b and high-spin heme o	714141, 715399	
7.1.1.3	heme	low-spin heme b and high-spin heme o in subunit I	715003	
7.1.1.3	heme	the enzyme contains 2 mol of heme, one or both of which are heme o	714286	
7.1.1.3	heme	the enzyme contains a hexa-coordinated low-spin heme, heme B and a penta-coordinated high-spin heme, heme O	714997