1KU5:
reference: Structure based hyperthermostability of archaeal histone HPhA from Pyrococcus horikoshii., Li T, Sun F, Ji X, Feng Y, Rao Z, J Mol Biol 2003 Jan 31;325(5):1031-7. PMID: 12527306

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