Crystal structure of the lactose operon repressor and its complexes with DNA and inducer.
Lewis, M., Chang, G., Horton, N.C., Kercher, M.A., Pace, H.C., Schumacher, M.A., Brennan, R.G., Lu, P.(1996) Science 271: 1247-1254
- PubMed: 8638105 
- DOI: 10.1126/science.271.5253.1247
- Primary Citation of Related Structures:  
1LBG, 1LBH, 1LBI - PubMed Abstract: 
The lac operon of Escherichia coli is the paradigm for gene regulation. Its key component is the lac repressor, a product of the lacI gene. The three-dimensional structures of the intact lac repressor, the lac repressor bound to the gratuitous inducer isopropyl-beta-D-1-thiogalactoside (IPTG) and the lac repressor complexed with a 21-base pair symmetric operator DNA have been determined ...