3GNF:
reference: The mechanism of vault opening from the high resolution structure of the N-terminal repeats of MVP., Querol-Audi J, Casanas A, Uson I, Luque D, Caston JR, Fita I, Verdaguer N, EMBO J. 2009 Nov 4;28(21):3450-7. Epub 2009 Sep 24. PMID: 19779459

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