2PUE: Crystal Structure Of The Laci Family Member, Purr, Bound To Groove Binding By Alpha Helices
reference: Structure-based redesign of corepressor specificity of the Escherichia coli purine repressor by substitution of residue 190., Lu F, Schumacher MA, Arvidson DN, Haldimann A, Wanner BL, Zalkin H, Brennan RG, Biochemistry 1998 Jan 27;37(4):971-82. PMID: 9454587

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