5EKA:
reference: HU histone-like DNA-binding protein from Thermus thermophilus: structural and evolutionary analyses., Papageorgiou AC, Adam PS, Stavros P, Nounesis G, Meijers R, Petratos K, Vorgias CE, Extremophiles. 2016 Jun 24. PMID: 27342116

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