2BJC
NMR structure of a protein-DNA complex of an altered specificity mutant of the lac repressor headpiece that mimics the gal repressor
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 | 6701.7 | 2 | UniProt (P03023) Pfam (PF00356) | ESCHERICHIA COLI | |
| 2 | C, D (C, D) | 5'-D(*GP*AP*AP*TP*TP*GP*TP*AP*AP*GP *CP*GP*CP*TP*TP*AP*CP*AP*AP*TP*TP*C)-3' | polymer | 22 | 6750.4 | 2 | LAC-GAL OPERATOR |
Sequence modifications
A, B: 1 - 62 (UniProt: P03023)
| PDB | External Database | Details |
|---|---|---|
| Val 17 | Tyr 17 | engineered mutation |
| Ala 18 | Gln 18 | engineered mutation |
| Cys 52 | Val 52 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 26904.1 | |
| All* | Total formula weight | 26904.1 |
