Cortactin has an essential and specific role in osteoclast actin assembly.
Tehrani S., Faccio R., Chandrasekar I., Ross F.P., & Cooper J.A. (2006). “Cortactin has an essential and specific role in osteoclast actin assembly.” Mol Biol Cell. 2006 Jul;17(7):2882-95. Epub 2006 Apr 12. (Abstract)