6CA0
Cryo-EM structure of E. coli RNAP sigma70 open 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 | DNA-directed RNA polymerase subunit alpha | polymer | 329 | 36558.7 | 2 | UniProt (P0A7Z4) Pfam (PF01193) Pfam (PF01000) Pfam (PF03118) In PDB | Escherichia coli (strain K12) | RNAP subunit alpha,RNA polymerase subunit alpha,Transcriptase subunit alpha |
| 2 | 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) In PDB | Escherichia coli (strain K12) | RNAP subunit beta,RNA polymerase subunit beta,Transcriptase subunit beta |
| 3 | D | DNA-directed RNA polymerase subunit beta' | polymer | 1407 | 155366.8 | 1 | UniProt (P0A8T7) Pfam (PF04997) Pfam (PF00623) Pfam (PF04983) Pfam (PF05000) Pfam (PF04998) In PDB | Escherichia coli (strain K12) | RNAP subunit beta',RNA polymerase subunit beta',Transcriptase subunit beta' |
| 4 | E | DNA-directed RNA polymerase subunit omega | polymer | 91 | 10249.5 | 1 | UniProt (P0A800) Pfam (PF01192) In PDB | Escherichia coli (strain K12) | RNAP omega subunit,RNA polymerase omega subunit,Transcriptase subunit omega |
| 5 | F | RNA polymerase sigma factor RpoD | polymer | 613 | 70352.2 | 1 | UniProt (P00579) Pfam (PF03979) Pfam (PF00140) Pfam (PF04546) Pfam (PF04542) Pfam (PF04539) Pfam (PF04545) In PDB | Escherichia coli (strain K12) | Sigma-70 |
| 6 | G | DNA (45-MER) | polymer | 45 | 13866.9 | 1 | Escherichia coli (strain K12) | ||
| 7 | H | DNA (35-MER) | polymer | 35 | 10787.0 | 1 | Escherichia coli (strain K12) | ||
| 8 | I | DNA (5'-D(P*TP*CP*TP*GP*AP*CP*GP*CP*GP*GP*C)-3') | polymer | 11 | 3350.2 | 1 | Escherichia coli (strain K12) | ||
| 9 | J | DNA (5'-D(P*GP*CP*CP*GP*CP*GP*TP*CP*AP*GP*A)-3') | polymer | 11 | 3359.2 | 1 | Escherichia coli (strain K12) | ||
| 10 | D | MAGNESIUM ION | non-polymer | 24.3 | 1 | Chemie (MG) | |||
| 11 | D | ZINC ION | non-polymer | 65.4 | 2 | Chemie (ZN) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 10 |
| Total formula weight | 491270.1 | |
| Non-Polymers* | Number of molecules | 3 |
| Total formula weight | 155.1 | |
| All* | Total formula weight | 491425.2 |
