Functional Information from PDB Data
| site_id | AC1 |
| Number of Residues | 6 |
| Details | binding site for residue NCO A 101 |
| Chain | Residue |
| A | A3 |
| A | G4 |
| A | HOH233 |
| A | HOH261 |
| A | HOH262 |
| A | HOH264 |
| site_id | AC2 |
| Number of Residues | 8 |
| Details | binding site for residue NCO A 102 |
| Chain | Residue |
| B | NCU1 |
| C | A8 |
| C | G9 |
| C | HOH205 |
| C | HOH228 |
| A | A8 |
| A | G9 |
| A | HOH209 |
| site_id | AC3 |
| Number of Residues | 7 |
| Details | binding site for residue NCO C 101 |
| Chain | Residue |
| C | A3 |
| C | G4 |
| C | HOH226 |
| C | HOH231 |
| C | HOH249 |
| C | HOH253 |
| C | HOH254 |
| site_id | AC4 |
| Number of Residues | 18 |
| Details | binding site for residues NCU B 1 and NTT B 2 |
| Chain | Residue |
| A | A2 |
| A | A8 |
| A | G9 |
| A | NCO102 |
| B | DC3 |
| B | NTT8 |
| B | NCU9 |
| B | HOH109 |
| B | HOH113 |
| B | HOH115 |
| B | HOH116 |
| B | HOH121 |
| B | HOH136 |
| B | HOH140 |
| B | HOH146 |
| C | G9 |
| D | NCU1 |
| D | HOH128 |
| site_id | AC5 |
| Number of Residues | 23 |
| Details | binding site for residues NTT B 8 and NCU B 9 |
| Chain | Residue |
| A | G1 |
| A | A2 |
| A | A3 |
| A | G9 |
| B | NCU1 |
| B | NTT2 |
| B | DT7 |
| B | HOH103 |
| B | HOH104 |
| B | HOH110 |
| B | HOH114 |
| B | HOH117 |
| B | HOH123 |
| B | HOH130 |
| B | HOH133 |
| B | HOH135 |
| B | HOH137 |
| B | HOH138 |
| B | HOH139 |
| B | HOH144 |
| C | G1 |
| D | NCU1 |
| D | HOH113 |
| site_id | AC6 |
| Number of Residues | 14 |
| Details | binding site for residues NCU D 1 and NTT D 2 |
| Chain | Residue |
| A | G9 |
| B | NCU1 |
| B | NCU9 |
| C | A8 |
| C | G9 |
| C | HOH215 |
| D | DC3 |
| D | HOH113 |
| D | HOH115 |
| D | HOH116 |
| D | HOH120 |
| D | HOH125 |
| D | HOH128 |
| D | HOH137 |
| site_id | AC7 |
| Number of Residues | 15 |
| Details | binding site for Di-nucleotide NTT D 2 and DC D 3 |
| Chain | Residue |
| C | G7 |
| C | A8 |
| C | G9 |
| D | NCU1 |
| D | DT4 |
| D | HOH108 |
| D | HOH109 |
| D | HOH115 |
| D | HOH116 |
| D | HOH120 |
| D | HOH125 |
| D | HOH126 |
| D | HOH133 |
| D | HOH137 |
| D | HOH142 |
| site_id | AC8 |
| Number of Residues | 12 |
| Details | binding site for Di-nucleotide DT D 7 and NTT D 8 |
| Chain | Residue |
| D | HOH121 |
| D | HOH122 |
| D | HOH124 |
| D | HOH130 |
| C | A2 |
| C | A3 |
| C | G4 |
| D | DC6 |
| D | NCU9 |
| D | HOH102 |
| D | HOH111 |
| D | HOH112 |
| site_id | AC9 |
| Number of Residues | 19 |
| Details | binding site for residues NTT D 8 and NCU D 9 |
| Chain | Residue |
| A | G1 |
| C | G1 |
| C | A2 |
| C | A3 |
| D | DT7 |
| D | HOH101 |
| D | HOH102 |
| D | HOH106 |
| D | HOH107 |
| D | HOH111 |
| D | HOH114 |
| D | HOH119 |
| D | HOH121 |
| D | HOH122 |
| D | HOH129 |
| D | HOH130 |
| D | HOH132 |
| D | HOH134 |
| D | HOH139 |
