6P1A
Transcription antitermination factor Q21 in complex with Q21-binding-element DNA
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B, C | Q protein | polymer | 162 | 18668.8 | 3 | UniProt (Q9XJQ6) Pfam (PF06530) In PDB | Phage 21 | Transcription antitermination factor Q21 |
| 2 | D, F | DNA (5'-D(P*CP*TP*CP*AP*TP*TP*GP*AP*GP*CP*AP*AP*AP*TP*GP*AP*GP*CP*AP*AP*G)-3') | polymer | 21 | 6480.2 | 2 | Phage 21 | Q21-binding element DNA, nontemplate strand | |
| 3 | E, G | DNA (5'-D(*CP*TP*TP*GP*CP*TP*CP*AP*TP*TP*TP*GP*CP*TP*CP*AP*AP*TP*GP*AP*G)-3') | polymer | 21 | 6404.1 | 2 | Phage 21 | Q21-binding element DNA, template strand | |
| 4 | A, B | 1,2-ETHANEDIOL | non-polymer | 62.1 | 3 | Chemie (EDO) | |||
| 5 | B, C | CHLORIDE ION | non-polymer | 35.5 | 2 | Chemie (CL) |
Sequence modifications
A, B, C: 2 - 162 (UniProt: Q9XJQ6)
| 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 | 7 |
| Total formula weight | 81775.1 | |
| Non-Polymers* | Number of molecules | 5 |
| Total formula weight | 257.1 | |
| All* | Total formula weight | 82032.2 |
