4WYB:
reference: Structure of a Bud6/Actin Complex Reveals a Novel WH2-like Actin Monomer Recruitment Motif., Park E, Graziano BR, Zheng W, Garabedian M, Goode BL, Eck MJ, Structure. 2015 Aug 4;23(8):1492-9. doi: 10.1016/j.str.2015.05.015. Epub 2015 Jun, 25. PMID: 26118535

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