Specificity
This antibody binds all six Actin gene products; not unexpected given the 94-97% sequence identity of the six proteins. As a result this antibody will detect all Actin proteins present in any mammalian cell or tissue extract, making it a useful and versatile western blot loading control. This antibody also works in immunocytochemical experiments, strongly labeling filopodia, membrane ruffles, and stress fibers in cells, all known to be rich in Actin.