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 | AC1 |
| Number of Residues | 22 |
| Details | BINDING SITE FOR RESIDUE HEM A 500 |
| Chain | Residue |
| A | PRO43 |
| A | ILE102 |
| A | LEU107 |
| A | ALA110 |
| A | TYR111 |
| A | HOH209 |
| A | HOH210 |
| A | HOH234 |
| A | HOH258 |
| A | HOH261 |
| A | HOH279 |
| A | PHE44 |
| A | OXY501 |
| B | LYS92 |
| B | LEU96 |
| A | LEU47 |
| A | GLN65 |
| A | VAL68 |
| A | MET73 |
| A | LEU96 |
| A | HIS97 |
| A | ARG100 |
| site_id | AC2 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE OXY A 501 |
| Chain | Residue |
| A | TYR30 |
| A | PHE44 |
| A | GLN65 |
| A | HEM500 |
| site_id | AC3 |
| Number of Residues | 24 |
| Details | BINDING SITE FOR RESIDUE HEM B 500 |
| Chain | Residue |
| A | LYS92 |
| B | THR40 |
| B | PRO43 |
| B | PHE44 |
| B | LEU47 |
| B | GLN65 |
| B | VAL68 |
| B | PHE69 |
| B | MET73 |
| B | MET93 |
| B | LEU96 |
| B | HIS97 |
| B | ARG100 |
| B | ILE102 |
| B | LEU107 |
| B | ALA110 |
| B | TYR111 |
| B | HOH157 |
| B | HOH186 |
| B | HOH197 |
| B | HOH203 |
| B | HOH221 |
| B | HOH247 |
| B | OXY501 |
| site_id | AC4 |
| Number of Residues | 4 |
| Details | BINDING SITE FOR RESIDUE OXY B 501 |
| Chain | Residue |
| B | TYR30 |
| B | PHE44 |
| B | GLN65 |
| B | HEM500 |
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 | |
