| 1CJG | A:1-62; B:1-62 | NMR STRUCTURE OF LAC REPRESSOR HP62-DNA COMPLEX |
| 1L1M | A:1-62; B:1-62 | SOLUTION STRUCTURE OF A DIMER OF LAC REPRESSOR DNA-BINDING DOMAIN COMPLEXED TO ITS NATURAL OPERATOR O1 |
| 1OSL | A:1-62; B:1-62 | SOLUTION STRUCTURE OF A DIMERIC LACTOSE DNA-BINDING DOMAIN COMPLEXED TO A NONSPECIFIC DNA SEQUENCE |
| 2PE5 | A:2-60; B:2-60; C:2-60 | CRYSTAL STRUCTURE OF THE LAC REPRESSOR BOUND TO ONPG IN REPRESSED STATE |