3QSI:
reference: Ni(II) coordination to mixed sites modulates DNA binding of HpNikR via a long-range effect., West AL, Evans SE, Gonzalez JM, Carter LG, Tsuruta H, Pozharski E, Michel SL, Proc Natl Acad Sci U S A. 2012 Mar 26. PMID: 22451934

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