1TLF
UNPRECEDENTED QUATERNARY STRUCTURE OF E. COLI LAC REPRESSOR CORE TETRAMER: IMPLICATIONS FOR DNA LOOPING
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, D (A, B, C, D) | LAC REPRESSOR | polymer | 301 | 32154.7 | 4 | UniProt (P03023) Pfam (PF13377) | Escherichia coli | |
| 2 | E, G, I, K (A, B, C, D) | ETHYL MERCURY ION | non-polymer | 229.7 | 4 | Chemie (EMC) | |||
| 3 | F, H, J, L (A, B, C, D) | 1-methylethyl 1-thio-beta-D-galactopyranoside | non-polymer | 238.3 | 4 | Chemie (IPT) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 4 |
| Total formula weight | 128618.8 | |
| Non-Polymers* | Number of molecules | 8 |
| Total formula weight | 1871.8 | |
| All* | Total formula weight | 130490.6 |
