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 that is expressed in smooth
muscle and non-muscle tissues. Genomic sequences representing
several pseudogenes have been described and two transcript variants
encoding different isoforms have been identified for this gene.
