3DJL:
reference: Structure and DNA binding of alkylation response protein AidB., Bowles T, Metz AH, O'Quin J, Wawrzak Z, Eichman BF, Proc Natl Acad Sci U S A. 2008 Oct 7;105(40):15299-304. Epub 2008 Sep 30. PMID: 18829440

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