Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0020037 | molecular_function | heme binding |
| B | 0020037 | molecular_function | heme binding |
| C | 0020037 | molecular_function | heme binding |
| D | 0020037 | molecular_function | heme binding |
| E | 0020037 | molecular_function | heme binding |
| F | 0020037 | molecular_function | heme binding |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 15 |
| Details | BINDING SITE FOR RESIDUE HEM A 90 |
| Chain | Residue |
| A | PHE35 |
| A | SER64 |
| A | ALA67 |
| A | SER71 |
| A | HOH743 |
| E | LYS28 |
| E | LYS72 |
| A | HIS39 |
| A | PRO40 |
| A | GLY41 |
| A | LEU46 |
| A | GLN49 |
| A | ASN57 |
| A | TRP58 |
| A | HIS63 |
| site_id | AC2 |
| Number of Residues | 18 |
| Details | BINDING SITE FOR RESIDUE HEM B 90 |
| Chain | Residue |
| B | LEU25 |
| B | PHE35 |
| B | HIS39 |
| B | PRO40 |
| B | GLY41 |
| B | VAL45 |
| B | LEU46 |
| B | GLN49 |
| B | ASN57 |
| B | TRP58 |
| B | HIS63 |
| B | SER64 |
| B | ALA67 |
| B | SER71 |
| B | HOH654 |
| B | HOH719 |
| C | LYS28 |
| C | LYS72 |
| site_id | AC3 |
| Number of Residues | 14 |
| Details | BINDING SITE FOR RESIDUE HEM C 90 |
| Chain | Residue |
| A | LYS28 |
| A | LYS72 |
| A | ILE75 |
| C | LEU25 |
| C | HIS39 |
| C | GLY41 |
| C | VAL45 |
| C | ASN57 |
| C | TRP58 |
| C | HIS63 |
| C | SER64 |
| C | ALA67 |
| C | HOH627 |
| C | HOH637 |
| site_id | AC4 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE HEM D 90 |
| Chain | Residue |
| D | LEU25 |
| D | PHE35 |
| D | HIS39 |
| D | PRO40 |
| D | GLY41 |
| D | VAL45 |
| D | LEU46 |
| D | GLN49 |
| D | ASN57 |
| D | TRP58 |
| D | VAL61 |
| D | HIS63 |
| D | SER64 |
| D | SER71 |
| F | LYS28 |
| F | LYS72 |
| site_id | AC5 |
| Number of Residues | 16 |
| Details | BINDING SITE FOR RESIDUE HEM E 90 |
| Chain | Residue |
| B | LYS28 |
| B | LYS72 |
| B | ILE75 |
| E | LEU25 |
| E | PHE35 |
| E | HIS39 |
| E | PRO40 |
| E | GLY41 |
| E | LEU46 |
| E | ASN57 |
| E | TRP58 |
| E | HIS63 |
| E | SER64 |
| E | ALA67 |
| E | HOH625 |
| E | HOH666 |
| site_id | AC6 |
| Number of Residues | 17 |
| Details | BINDING SITE FOR RESIDUE HEM F 90 |
| Chain | Residue |
| D | LYS28 |
| D | LYS72 |
| D | ILE75 |
| F | LEU25 |
| F | PHE35 |
| F | HIS39 |
| F | GLY41 |
| F | VAL45 |
| F | LEU46 |
| F | GLN49 |
| F | TRP58 |
| F | HIS63 |
| F | SER64 |
| F | ALA67 |
| F | HOH641 |
| F | HOH649 |
| F | HOH672 |
Functional Information from PROSITE/UniProt
| site_id | PS00191 |
| Number of Residues | 8 |
| Details | CYTOCHROME_B5_1 Cytochrome b5 family, heme-binding domain signature. FLEEHPGG |
| Chain | Residue | Details |
| A | PHE35-GLY42 | |
Functional Information from SwissProt/UniProt
| Chain | Residue | Details |
| A | PRO40 | |
| E | SER64 | |
| F | PRO40 | |
| F | SER64 | |
| A | SER64 | |
| B | PRO40 | |
| B | SER64 | |
| C | PRO40 | |
| C | SER64 | |
| D | PRO40 | |
| D | SER64 | |
| E | PRO40 | |
| Chain | Residue | Details |
| A | ALA3 | |
| D | ALA3 | |
| D | TYR6 | |
| D | HIS15 | |
| E | ALA3 | |
| E | TYR6 | |
| E | HIS15 | |
| F | ALA3 | |
| F | TYR6 | |
| F | HIS15 | |
| A | TYR6 | |
| A | HIS15 | |
| B | ALA3 | |
| B | TYR6 | |
| B | HIS15 | |
| C | ALA3 | |
| C | TYR6 | |
| C | HIS15 | |
