3M8R
Crystal structure of the large fragment of DNA polymerase I from Thermus aquaticus in a closed ternary complex with trapped 4'-ethylated dTTP
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A | DNA polymerase I, thermostable | polymer | 540 | 60937.0 | 1 | UniProt (P19821) Pfam (PF09281) Pfam (PF00476) In PDB | Thermus aquaticus | Taq polymerase 1 |
| 2 | B | DNA (5'-D(*GP*AP*CP*CP*AP*CP*GP*GP*CP*GP*CP*(DOC))-3') | polymer | 12 | 3617.4 | 1 | |||
| 3 | C | DNA (5'-D(*AP*AP*AP*AP*GP*GP*CP*GP*CP*CP*GP*TP*GP*GP*TP*C)-3') | polymer | 16 | 4948.2 | 1 | |||
| 4 | A | 4'-ethylthymidine 5'-(tetrahydrogen triphosphate) | non-polymer | 510.2 | 1 | Chemie (HXZ) | |||
| 5 | A | MAGNESIUM ION | non-polymer | 24.3 | 2 | Chemie (MG) | |||
| 6 | A | POLYETHYLENE GLYCOL (N=34) | non-polymer | 1529.8 | 2 | Chemie (15P) | |||
| 7 | A, B, C | GLYCEROL | non-polymer | 92.1 | 4 | Chemie (GOL) | |||
| 8 | A | ACETATE ION | non-polymer | 59.0 | 1 | Chemie (ACT) | |||
| 9 | water | water | 18.0 | 291 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 3 |
| Total formula weight | 69502.6 | |
| Non-Polymers* | Number of molecules | 10 |
| Total formula weight | 4045.9 | |
| All* | Total formula weight | 73548.5 |
