2KEK
Solution structure of a dimer of LAC repressor DNA-binding domain complexed to its natural operator O3
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) | Lactose operon repressor | polymer | 62 | 6822.8 | 2 | UniProt (P03023) Pfam (PF00356) | Escherichia coli | |
| 2 | C (C) | DNA (5'-D(*CP*GP*GP*CP*AP*GP*TP*GP*AP*GP*CP*GP*CP*AP*AP*CP*GP*CP*AP*AP*TP*TP*C)-3') | polymer | 23 | 7075.6 | 1 | |||
| 3 | D (D) | DNA (5'-D(P*GP*AP*AP*TP*TP*GP*CP*GP*TP*TP*GP*CP*GP*CP*TP*CP*AP*CP*TP*GP*CP*CP*G)-3') | polymer | 23 | 7048.5 | 1 |
Sequence modifications
A, B: 1 - 62 (UniProt: P03023)
| PDB | External Database | Details |
|---|---|---|
| Cys 52 | Val 52 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 27769.6 | |
| All* | Total formula weight | 27769.6 |
