Tissue‐specific expression of profilin

Abstract
Expression of profilin and profilin:actin ratios in vertebrates were determined with polyclonal antibodies against profilin and actin. Profilin was detected in a wide variety of bovine tissues and was especially enriched in smooth muscle of bovine, porcine and avian origin. The protein was purified from pig stomach muscle tissue. Smooth muscle profilin was found to be more effective in inhibiting the polymerization of skeletal muscle actin than thymus profilin purified by the same method.