1ROC:
reference: Structure and function of the conserved core of histone deposition protein Asf1., Daganzo SM, Erzberger JP, Lam WM, Skordalakes E, Zhang R, Franco AA, Brill SJ, Adams PD, Berger JM, Kaufman PD, Curr Biol 2003 Dec 16;13(24):2148-58. PMID: 14680630

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