Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 16 |
| Details | binding site for residue HEM A 201 |
| Chain | Residue |
| A | GLU31 |
| A | HIS89 |
| A | LEU92 |
| A | ASN96 |
| A | PHE97 |
| A | LEU127 |
| A | 4NC204 |
| A | OXY205 |
| A | ASN34 |
| A | PHE35 |
| A | HIS55 |
| A | LYS58 |
| A | VAL59 |
| A | MET63 |
| A | MET86 |
| A | GLN88 |
| site_id | AC2 |
| Number of Residues | 9 |
| Details | binding site for residue SO4 A 202 |
| Chain | Residue |
| A | GLY1 |
| A | PHE2 |
| A | LYS3 |
| A | HOH336 |
| A | HOH371 |
| B | LYS32 |
| B | VAL39 |
| B | GLY40 |
| B | HOH301 |
| site_id | AC3 |
| Number of Residues | 10 |
| Details | binding site for residue SO4 A 203 |
| Chain | Residue |
| A | LYS32 |
| A | VAL39 |
| A | GLY40 |
| A | HOH313 |
| A | HOH318 |
| A | HOH389 |
| B | GLY1 |
| B | PHE2 |
| B | LYS3 |
| B | HOH309 |
| site_id | AC4 |
| Number of Residues | 10 |
| Details | binding site for residue 4NC A 204 |
| Chain | Residue |
| A | PHE21 |
| A | PHE35 |
| A | TYR38 |
| A | PHE52 |
| A | HIS55 |
| A | THR56 |
| A | VAL59 |
| A | PHE60 |
| A | HEM201 |
| A | OXY205 |
| site_id | AC5 |
| Number of Residues | 4 |
| Details | binding site for residue OXY A 205 |
| Chain | Residue |
| A | HIS55 |
| A | VAL59 |
| A | HEM201 |
| A | 4NC204 |
| site_id | AC6 |
| Number of Residues | 6 |
| Details | binding site for residue GOL A 206 |
| Chain | Residue |
| A | GLN4 |
| A | ASP5 |
| A | THR8 |
| A | GLN113 |
| A | SER114 |
| B | HOH304 |
| site_id | AC7 |
| Number of Residues | 10 |
| Details | binding site for residue GOL A 207 |
| Chain | Residue |
| A | SER42 |
| A | GLN44 |
| A | GLU45 |
| A | GLU65 |
| A | ARG69 |
| A | HOH301 |
| A | HOH303 |
| A | HOH305 |
| A | HOH338 |
| B | ALA7 |
| site_id | AC8 |
| Number of Residues | 13 |
| Details | binding site for residue HEM B 201 |
| Chain | Residue |
| B | HIS55 |
| B | LYS58 |
| B | VAL59 |
| B | MET63 |
| B | LEU83 |
| B | MET86 |
| B | GLN88 |
| B | HIS89 |
| B | LEU92 |
| B | ASN96 |
| B | PHE97 |
| B | LEU127 |
| B | 4NC202 |
| site_id | AC9 |
| Number of Residues | 9 |
| Details | binding site for residue 4NC B 202 |
| Chain | Residue |
| B | PHE21 |
| B | PHE35 |
| B | TYR38 |
| B | PHE52 |
| B | HIS55 |
| B | THR56 |
| B | VAL59 |
| B | PHE60 |
| B | HEM201 |
| site_id | AD1 |
| Number of Residues | 4 |
| Details | binding site for residue GOL B 203 |
| Chain | Residue |
| A | LYS99 |
| B | THR93 |
| B | LYS99 |
| B | HOH305 |
