Multiple Assemblies exist for SMTL entry 3fyi
Catalytic core subunits (I and II) of cytochrome C oxidase from Rhodobacter sphaeroides in the reduced state bound with cyanide; X-RAY DIFFRACTION 2.20 Å

	SMTL ID 3fyi.1 Ligands HEME-A; COPPER (I) ION; MAGNESIUM ION; CALCIUM ION; CYANIDE ION; DECYL-BETA-D-MALTOPYRANOSIDE; TRIDECANE; HEPTANE-1,2,3-TRIOL; CADMIUM ION Polypeptides Cytochrome c oxidase subunit 1; Cytochrome c oxidase subunit 2 Oligo-state hetero-1-1-mer
	SMTL ID 3fyi.2 Ligands HEME-A; COPPER (I) ION; MAGNESIUM ION; CALCIUM ION; CYANIDE ION; TRIDECANE; DECYL-BETA-D-MALTOPYRANOSIDE; CADMIUM ION Polypeptides Cytochrome c oxidase subunit 1; Cytochrome c oxidase subunit 2 Oligo-state hetero-1-1-mer