Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0020037 | molecular_function | heme binding |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 21 |
| Details | BINDING SITE FOR RESIDUE HEM A 101 |
| Chain | Residue |
| A | HIS32 |
| A | ASN62 |
| A | PHE63 |
| A | VAL66 |
| A | HIS68 |
| A | SER69 |
| A | ALA72 |
| A | SER76 |
| A | ARG89 |
| A | LYS94 |
| A | HOH221 |
| A | LEU37 |
| A | HOH288 |
| A | HOH305 |
| A | PHE40 |
| A | HIS44 |
| A | PRO45 |
| A | GLY46 |
| A | VAL50 |
| A | LEU51 |
| A | GLN54 |
| site_id | AC2 |
| Number of Residues | 6 |
| Details | BINDING SITE FOR RESIDUE ACT A 102 |
| Chain | Residue |
| A | LYS24 |
| A | SER25 |
| A | TRP27 |
| A | ASP36 |
| A | THR38 |
| A | LYS39 |
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 | PHE40-GLY47 | |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 2 |
| Details | BINDING: axial binding residue |
| Chain | Residue | Details |
| A | HIS44 | |
| A | HIS68 | |
| Chain | Residue | Details |
| A | LYS7 | |
| A | LYS10 | |
| A | LYS19 | |
