3QBZ:
reference: Saccharomyces cerevisiae DBF4 reveals a unique fold necessary for the interaction with the RAD53 kinase., Matthews LA, Jones DR, Prasad AA, Duncker BP, Guarne A, J Biol Chem. 2011 Nov 29. PMID: 22130670

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