Functional Information from GO Data
| Chain | GOid | namespace | contents |
| A | 0009055 | molecular_function | electron transfer activity |
| A | 0015979 | biological_process | photosynthesis |
| A | 0020037 | molecular_function | heme binding |
| A | 0046872 | molecular_function | metal ion binding |
Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 9 |
| Details | BINDING SITE FOR RESIDUE SO4 A 300 |
| Chain | Residue |
| A | ALA60 |
| A | GLN102 |
| A | HOH2237 |
| A | HOH2238 |
| A | HOH2239 |
| A | HOH2241 |
| A | HOH2242 |
| A | HOH2243 |
| A | HOH2244 |
| site_id | AC2 |
| Number of Residues | 7 |
| Details | BINDING SITE FOR RESIDUE SO4 A 301 |
| Chain | Residue |
| A | ASN71 |
| A | THR94 |
| A | LYS96 |
| A | HOH2148 |
| A | HOH2151 |
| A | HOH2246 |
| A | HOH2248 |
| site_id | AC3 |
| Number of Residues | 21 |
| Details | BINDING SITE FOR RESIDUE HEC A 115 |
| Chain | Residue |
| A | CYS13 |
| A | CYS16 |
| A | HIS17 |
| A | VAL24 |
| A | GLY25 |
| A | PRO26 |
| A | ALA36 |
| A | GLY37 |
| A | TYR44 |
| A | SER45 |
| A | ASN48 |
| A | TRP58 |
| A | TYR66 |
| A | LEU67 |
| A | THR91 |
| A | LYS92 |
| A | MET93 |
| A | PHE95 |
| A | NH3302 |
| A | HOH2096 |
| A | HOH2236 |
| site_id | AC4 |
| Number of Residues | 3 |
| Details | BINDING SITE FOR RESIDUE NH3 A 302 |
| Chain | Residue |
| A | TYR66 |
| A | HEC115 |
| A | HOH2249 |
Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 2 |
| Details | BINDING: covalent |
| Chain | Residue | Details |
| A | CYS13 | |
| A | CYS16 | |
| site_id | SWS_FT_FI2 |
| Number of Residues | 2 |
| Details | BINDING: axial binding residue |
| Chain | Residue | Details |
| A | HIS17 | |
| A | MET93 | |
