3VKH:
reference: The 2.8 A crystal structure of the dynein motor domain., Kon T, Oyama T, Shimo-Kon R, Imamula K, Shima T, Sutoh K, Kurisu G, Nature. 2012 Mar 7;484(7394):345-50. doi: 10.1038/nature10955. PMID: 22398446

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