1LBG: Lactose Operon Repressor Bound To 21-Base Pair Symmetric Ope Alpha Carbons Only
reference: Crystal structure of the lactose operon repressor and its complexes with DNA and inducer., Lewis M, Chang G, Horton NC, Kercher MA, Pace HC, Schumacher MA, Brennan RG, Lu P, Science 1996 Mar 1;271(5253):1247-54. PMID: 8638105

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).