1IW7
Crystal structure of the RNA polymerase holoenzyme from Thermus thermophilus at 2.6A resolution
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, G, H (A, B, K, L) | RNA polymerase alpha subunit | polymer | 315 | 35056.2 | 4 | UniProt (Q9Z9H6) Pfam (PF01193) Pfam (PF01000) Pfam (PF03118) | Thermus thermophilus | |
| 2 | C, I (C, M) | RNA polymerase beta subunit | polymer | 1119 | 125436.5 | 2 | Pfam (PF04563) Pfam (PF04561) Pfam (PF04565) Pfam (PF10385) Pfam (PF00562) Pfam (PF04560) UniProt (by SIFTS) (Q8RQE9) | Thermus thermophilus | |
| 3 | D, J (D, N) | RNA polymerase beta subunit | polymer | 1524 | 170997.4 | 2 | Pfam (PF04997) Pfam (PF21668) Pfam (PF00623) Pfam (PF04983) Pfam (PF05000) Pfam (PF04998) UniProt (by SIFTS) (Q8RQE8) | Thermus thermophilus | |
| 4 | E, K (E, O) | RNA polymerase omega subunit | polymer | 99 | 11521.2 | 2 | Pfam (PF01192) UniProt (by SIFTS) (Q8RQE7) | Thermus thermophilus | |
| 5 | F, L (F, P) | RNA polymerase sigma-70 subunit | polymer | 423 | 48568.0 | 2 | GenBank (4239959) Pfam (PF00140) Pfam (PF04542) Pfam (PF04539) Pfam (PF04545) UniProt (by SIFTS) (Q72L95) | Thermus thermophilus | |
| 6 | AA, AB, AC, AD, AE... (A, B, C, D, F...) | MAGNESIUM ION | non-polymer | 24.3 | 485 | Chemie (MG) | |||
| 7 | ND, NN, OD, ON (D, N) | LEAD (II) ION | non-polymer | 207.2 | 4 | Chemie (PB) | |||
| 8 | HS, IS, JS, KS, LS... (A, B, C, D, E...) | water | water | 18.0 | 5476 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 12 |
| Total formula weight | 853271.0 | |
| Non-Polymers* | Number of molecules | 489 |
| Total formula weight | 12616.7 | |
| All* | Total formula weight | 865887.7 |
