3IHQ
Crystal Structure of Reduced C10S Spx in Complex with the Alpha C-terminal Domain of RNA Polymeras
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Regulatory protein spx | polymer | 132 | 15674.0 | 1 | UniProt (O31602) Pfam (PF03960) | Bacillus subtilis | |
| 2 | B (B) | DNA-directed RNA polymerase subunit alpha | polymer | 75 | 8534.9 | 1 | UniProt (P20429) Pfam (PF03118) | Bacillus subtilis | RNAP subunit alpha, Transcriptase subunit alpha, RNA polymerase subunit alpha |
| 3 | C (A) | IMIDAZOLE | non-polymer | 69.1 | 1 | Chemie (IMD) | |||
| 4 | D, E (A, B) | water | water | 18.0 | 39 | Chemie (HOH) |
Sequence modifications
A: 1 - 131 (UniProt: O31602)
B: 245 - 314 (UniProt: P20429)
| PDB | External Database | Details |
|---|---|---|
| His 0 | - | expression tag |
| Ser 10 | Cys 10 | engineered mutation |
| PDB | External Database | Details |
|---|---|---|
| Gly 241 | - | expression tag |
| Ser 242 | - | expression tag |
| His 243 | - | expression tag |
| Met 244 | - | expression tag |
| Gly 315 | - | expression tag |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 24208.8 | |
| Non-Polymers* | Number of molecules | 1 |
| Total formula weight | 69.1 | |
| All* | Total formula weight | 24277.9 |
