Functional Information from GO Data
| Chain | GOid | namespace | contents | 
| A | 0009263 | biological_process | deoxyribonucleotide biosynthetic process | 
| A | 0016491 | molecular_function | oxidoreductase activity | 
| B | 0009263 | biological_process | deoxyribonucleotide biosynthetic process | 
| B | 0016491 | molecular_function | oxidoreductase activity | 
Functional Information from PDB Data
| site_id | AC1 | 
| Number of Residues | 5 | 
| Details | BINDING SITE FOR RESIDUE FE A 1000 | 
| Chain | Residue | 
| A | GLN125 | 
| A | GLU129 | 
| A | GLU191 | 
| A | GLU225 | 
| A | HIS228 | 
| site_id | AC2 | 
| Number of Residues | 4 | 
| Details | BINDING SITE FOR RESIDUE FE B 1001 | 
| Chain | Residue | 
| B | GLU129 | 
| B | GLU191 | 
| B | GLU225 | 
| B | HIS228 | 
| site_id | AC3 | 
| Number of Residues | 4 | 
| Details | BINDING SITE FOR RESIDUE UNX A 2001 | 
| Chain | Residue | 
| A | TYR47 | 
| A | PRO48 | 
| A | ASP49 | 
| A | VAL50 | 
| site_id | AC4 | 
| Number of Residues | 4 | 
| Details | BINDING SITE FOR RESIDUE UNX A 2002 | 
| Chain | Residue | 
| A | SER133 | 
| A | GLU134 | 
| A | SER137 | 
| B | LYS120 | 
Functional Information from PROSITE/UniProt
| site_id | PS00368 | 
| Number of Residues | 17 | 
| Details | RIBORED_SMALL Ribonucleotide reductase small subunit signature. VEn.IHSeTYslLidnYI | 
| Chain | Residue | Details | 
| A | VAL128-ILE144 |  | 
Catalytic Information from CSA
| site_id | CSA1 | 
| Number of Residues | 1 | 
| Details | Annotated By Reference To The Literature 1xik | 
| Chain | Residue | Details | 
| A | TYR136 |  | 
| site_id | CSA2 | 
| Number of Residues | 1 | 
| Details | Annotated By Reference To The Literature 1xik | 
| Chain | Residue | Details | 
| B | TYR136 |  |