4O1R
Crystal structure of NpuDnaB intein
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Replicative DNA helicase | polymer | 142 | 15491.6 | 1 | UniProt (B2IVH9) Pfam (PF14890) | Nostoc punctiforme | |
| 2 | B, C, D (A) | SODIUM ION | non-polymer | 23.0 | 3 | Chemie (NA) | |||
| 3 | E, F, G, H (A) | CHLORIDE ION | non-polymer | 35.5 | 4 | Chemie (CL) | |||
| 4 | I, J (A) | GLYCEROL | non-polymer | 92.1 | 2 | Chemie (GOL) | |||
| 5 | K (A) | water | water | 18.0 | 278 | Chemie (HOH) |
Sequence modifications
A: 0 - 98 (UniProt: B2IVH9)
A: 101 - 139 (UniProt: B2IVH9)
| PDB | External Database | Details |
|---|---|---|
| Ser -2 | - | expression tag |
| Gly -1 | - | expression tag |
| Ala 1 | Cys 389 | conflict |
| Ala 94 | Cys 482 | conflict |
| PDB | External Database | Details |
|---|---|---|
| Ser 99 | - | expression tag |
| Gly 100 | - | expression tag |
| Ile 103 | Val 781 | conflict |
| Thr 112 | Glu 790 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 15491.6 | |
| Non-Polymers* | Number of molecules | 9 |
| Total formula weight | 395.0 | |
| All* | Total formula weight | 15886.6 |
