Myosin light chain, a well-known cytoskeleton gene, regulates multiple processes that are involved in material transport, muscle shrink and cell division. However, its function in phagocytosis against invading pathogens in crustacean remains unknown. In this investigation, a myosin light chain gene was obtained from Marsupenaeus japonicus shrimp. The full-length cDNA of this gene was of 766. bp and an open reading frame (ORF) of 462. bp encoding a polypeptide of 153 amino acids. The myosin light chain protein was expressed in Escherichia coli a...