6P19
Q21 transcription antitermination complex: loaded complex
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (1) | DNA (123-MER) fragment carrying phage-21 pR' promoter, pause element, and transcribed region, nontemplate strand | polymer | 123 | 38545.6 | 1 | Phage 21 | ||
| 2 | B (2) | DNA (123-MER) fragment carrying phage-21 pR' promoter, pause element, and transcribed region, template strand | polymer | 123 | 37358.9 | 1 | Phage 21 | ||
| 3 | C, D (A, B) | DNA-directed RNA polymerase subunit alpha | polymer | 329 | 36558.7 | 2 | UniProt (P0A7Z4) Pfam (PF01193) Pfam (PF01000) Pfam (PF03118) | Escherichia coli (strain K12) | RNAP subunit alpha,RNA polymerase subunit alpha,Transcriptase subunit alpha |
| 4 | E (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 (strain K12) | RNAP subunit beta,RNA polymerase subunit beta,Transcriptase subunit beta |
| 5 | F (D) | DNA-directed RNA polymerase subunit beta' | polymer | 1430 | 158314.9 | 1 | UniProt (P0A8T7) Pfam (PF04997) Pfam (PF00623) Pfam (PF04983) Pfam (PF05000) Pfam (PF04998) | Escherichia coli (strain K12) | RNAP subunit beta',RNA polymerase subunit beta',Transcriptase subunit beta' |
| 6 | G (E) | DNA-directed RNA polymerase subunit omega | polymer | 91 | 10249.5 | 1 | UniProt (P0A800) Pfam (PF01192) | Escherichia coli (strain K12) | RNAP omega subunit,RNA polymerase omega subunit,Transcriptase subunit omega |
| 7 | H (Q) | Q protein | polymer | 162 | 18668.8 | 1 | UniProt (Q9XJQ6) Pfam (PF06530) | Phage 21 | Transcription antitermination factor Q21 |
| 8 | I (R) | Transcribed RNA | polymer | 70 | 22972.6 | 1 | Escherichia coli | transcribed RNA | |
| 9 | J, K (D) | ZINC ION | non-polymer | 65.4 | 2 | Chemie (ZN) | |||
| 10 | L (D) | MAGNESIUM ION | non-polymer | 24.3 | 1 | Chemie (MG) |
Sequence modifications
D: 1 - 1407 (UniProt: P0A8T7)
Q: 2 - 162 (UniProt: Q9XJQ6)
| PDB | External Database | Details |
|---|---|---|
| Leu 1408 | - | expression tag |
| Glu 1409 | - | expression tag |
| Arg 1410 | - | expression tag |
| Arg 1411 | - | expression tag |
| Ala 1412 | - | expression tag |
| Ser 1413 | - | expression tag |
| Glu 1414 | - | expression tag |
| Asn 1415 | - | expression tag |
| Leu 1416 | - | expression tag |
| Tyr 1417 | - | expression tag |
| Phe 1418 | - | expression tag |
| Gln 1419 | - | expression tag |
| Gly 1420 | - | expression tag |
| His 1421 | - | expression tag |
| His 1422 | - | expression tag |
| His 1423 | - | expression tag |
| His 1424 | - | expression tag |
| His 1425 | - | expression tag |
| His 1426 | - | expression tag |
| His 1427 | - | expression tag |
| His 1428 | - | expression tag |
| His 1429 | - | expression tag |
| His 1430 | - | expression tag |
| PDB | External Database | Details |
|---|---|---|
| Ser 1 | - | expression tag |
| Gly 24 | - | insertion |
| Trp 26 | His 25 | conflict |
| Val 27 | Gly 26 | conflict |
| Tyr 28 | Leu 27 | conflict |
| Val 47 | Ile 46 | conflict |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 9 |
| Total formula weight | 510048.6 | |
| Non-Polymers* | Number of molecules | 3 |
| Total formula weight | 155.1 | |
| All* | Total formula weight | 510203.7 |
