<p>Various sources of actin, cofilin and tropomyosin were tested using the co-sedimentation assay as in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0003641#pone-0003641-g002" target="_blank">Figure 2</a> legend. ‘+’ refers to cofilin co-sedimenting with F-actin without causing depolymerization; ‘+ +’, ‘+ + +’ and ‘+ + + +’ refer to weak, moderate and strong, respectively, depolymerization of F-actin by cofilin.</p
