1U2V:
reference: Crystal structures of actin-related protein 2/3 complex with bound ATP or ADP., Nolen BJ, Littlefield RS, Pollard TD, Proc Natl Acad Sci U S A 2004 Nov 2;101(44):15627-32. Epub 2004 Oct 25. PMID: 15505213

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