Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0019825 | molecular_function | oxygen binding |
| A | 0020037 | molecular_function | heme binding |
| B | 0019825 | molecular_function | oxygen binding |
| B | 0020037 | molecular_function | heme binding |
Functional Information from PDB Data
| site_id | AC3 |
| Number of Residues | 8 |
| Details | BINDING SITE FOR RESIDUE SO4 B 200 |
| Chain | Residue |
| A | HIS37 |
| A | HOH549 |
| B | THR1 |
| B | LYS8 |
| B | ASN83 |
| B | HOH533 |
| B | HOH538 |
| B | HOH593 |
| site_id | AC4 |
| Number of Residues | 5 |
| Details | BINDING SITE FOR RESIDUE SO4 A 200 |
| Chain | Residue |
| A | SER16 |
| A | HOH519 |
| A | HOH523 |
| A | HOH586 |
| A | ARG12 |
| site_id | AC5 |
| Number of Residues | 19 |
| Details | BINDING SITE FOR RESIDUE HEM A 500 |
| Chain | Residue |
| A | PRO43 |
| A | PHE44 |
| A | LEU47 |
| A | GLN65 |
| A | MET93 |
| A | LEU96 |
| A | HIS97 |
| A | ARG100 |
| A | ILE102 |
| A | LEU107 |
| A | ALA110 |
| A | TYR111 |
| A | HOH504 |
| A | HOH505 |
| A | HOH506 |
| A | HOH520 |
| A | HOH526 |
| A | HOH535 |
| B | LYS92 |
| site_id | AC6 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE OXY A 501 |
| Chain | Residue |
| A | TYR30 |
| A | PHE44 |
| A | GLN65 |
| site_id | AC7 |
| Number of Residues | 18 |
| Details | BINDING SITE FOR RESIDUE HEM B 500 |
| Chain | Residue |
| A | LYS92 |
| B | PRO43 |
| B | PHE44 |
| B | LEU47 |
| B | GLN65 |
| B | PHE69 |
| B | LEU96 |
| B | HIS97 |
| B | ARG100 |
| B | ILE102 |
| B | LEU107 |
| B | TYR111 |
| B | HOH502 |
| B | HOH503 |
| B | HOH504 |
| B | HOH505 |
| B | HOH516 |
| B | HOH565 |
| site_id | AC8 |
| Number of Residues | 2 |
| Details | BINDING SITE FOR RESIDUE OXY B 501 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 2 |
| Details | BINDING: proximal binding residue |
| Chain | Residue | Details |
| A | HIS97 | |
| B | HIS97 | |
| Chain | Residue | Details |
| A | THR1 | |
| B | THR1 | |
