Myosin is a hexameric ATPase cellular motor protein. It is composed of two heavy chains, two nonphosphorylatable alkali light chains, and two phosphorylatable regulatory light chains. This gene encodes a myosin alkali light chain expressed in both slow-twitch skeletal muscle and in nonmuscle tissue. Alternative splicing results in multiple transcript variants.Store at 4°C or -20°C long term. Avoid repeated freeze / thaw cycles. Store undiluted. *   http://www.creative-diagnostics.com/Anti-SPIN4-PAb-195873-147.htm