3J8A:
reference: Structure of the F-actin--tropomyosin complex., von der Ecken J, Muller M, Lehman W, Manstein DJ, Penczek PA, Raunser S, Nature. 2014 Dec 1. doi: 10.1038/nature14033. PMID: 25470062

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