7QXI
Cryo-EM structure of RNA polymerase-sigma54 holo enzyme with promoter DNA closed complex
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | DNA-directed RNA polymerase subunit alpha | polymer | 329 | 36558.7 | 2 | UniProt (P0A7Z4) Pfam (PF01193) Pfam (PF01000) Pfam (PF03118) | Escherichia coli K-12 | RNAP subunit alpha,RNA polymerase subunit alpha,Transcriptase subunit alpha |
| 2 | C (C) | DNA-directed RNA polymerase subunit beta | polymer | 1342 | 150820.9 | 1 | UniProt (P0A8V2) Pfam (PF04560) Pfam (PF04563) Pfam (PF04561) Pfam (PF04565) Pfam (PF10385) Pfam (PF00562) | Escherichia coli K-12 | RNAP subunit beta,RNA polymerase subunit beta,Transcriptase subunit beta |
| 3 | D (D) | DNA-directed RNA polymerase subunit beta' | polymer | 1407 | 155366.8 | 1 | UniProt (P0A8T7) Pfam (PF04997) Pfam (PF00623) Pfam (PF04983) Pfam (PF05000) Pfam (PF04998) | Escherichia coli K-12 | RNAP subunit beta',RNA polymerase subunit beta',Transcriptase subunit beta' |
| 4 | E (E) | DNA-directed RNA polymerase subunit omega | polymer | 91 | 10249.5 | 1 | UniProt (P0A800) Pfam (PF01192) | Escherichia coli K-12 | RNAP omega subunit,RNA polymerase omega subunit,Transcriptase subunit omega |
| 5 | F (M) | RNA polymerase sigma-54 factor | polymer | 497 | 56165.0 | 1 | UniProt (A0A0N9UTC1) Pfam (PF00309) Pfam (PF04963) Pfam (PF04552) UniProt (by SIFTS) (A0A0H3H3L1) | Klebsiella pneumoniae | |
| 6 | G (N) | Non-Template promoter DNA | polymer | 63 | 19439.4 | 1 | Klebsiella pneumoniae | ||
| 7 | H (T) | Template DNA promoter | polymer | 63 | 19404.4 | 1 | Klebsiella pneumoniae |
Sequence modifications
M: 1 - 477 (UniProt: A0A0N9UTC1)
| PDB | External Database | Details |
|---|---|---|
| Met -19 | - | initiating methionine |
| Gly -18 | - | expression tag |
| Ser -17 | - | expression tag |
| Ser -16 | - | expression tag |
| His -15 | - | expression tag |
| His -14 | - | expression tag |
| His -13 | - | expression tag |
| His -12 | - | expression tag |
| His -11 | - | expression tag |
| His -10 | - | expression tag |
| Ser -9 | - | expression tag |
| Ser -8 | - | expression tag |
| Gly -7 | - | expression tag |
| Leu -6 | - | expression tag |
| Val -5 | - | expression tag |
| Pro -4 | - | expression tag |
| Arg -3 | - | expression tag |
| Gly -2 | - | expression tag |
| Ser -1 | - | expression tag |
| His 0 | - | expression tag |
| Glu 49 | Gln 49 | conflict |
| Glu 80 | Asp 80 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 8 |
| Total formula weight | 484563.4 | |
| All* | Total formula weight | 484563.4 |
