![]()  | - SMTL ID
 - 3eh3.1
 - Ligands
 - COPPER (I) ION; PROTOPORPHYRIN IX CONTAINING FE; HEME-AS; DINUCLEAR COPPER ION
 - Polypeptides
 - Cytochrome c oxidase subunit 1; Cytochrome c oxidase subunit 2; Cytochrome c oxidase polypeptide 2A
 - Oligo-state
 - hetero-1-1-1-mer
 
  | 
![]()  | - SMTL ID
 - 3eh3.2
 - Ligands
 - COPPER (I) ION; PROTOPORPHYRIN IX CONTAINING FE; HEME-AS
 - Polypeptides
 - Cytochrome c oxidase subunit 1
 - Oligo-state
 - monomer
 
  | 
![]()  | - SMTL ID
 - 3eh3.3
 - Ligands
 - DINUCLEAR COPPER ION
 - Polypeptides
 - Cytochrome c oxidase subunit 2
 - Oligo-state
 - monomer
 
  | 
![]()  | - SMTL ID
 - 3eh3.4
 - Ligands
 - -
 - Polypeptides
 - Cytochrome c oxidase polypeptide 2A
 - Oligo-state
 - monomer
 
  |