Myosin light chain 2, MLC2, myosin regulatory light chain, MRLC, RLC, LC20, myosin, smooth muscle contraction, stress fiber assembly, cytokinesis, familial hypertrophic cardiomyopathy type 10, CMH10, Myosin light chain 2, Myosin regulatory light chain 2, ventricular/cardiac muscle isoform, cytoplasm, calcium binding, myosin, cardiac myofibril assembly, heart contraction, muscle cell fate specification, muscle tissue, cardiac muscle, myosin complex, and actin binding