among these ten phosphorylated proteins , we identified a major cytoplasmic polypeptide ( mr approximately 64,000 ) , a cytoskeletal protein ( mr approximately 56,000 ) , a nonmuscle myosin light chain , and two proteins ( mr approximately 60,000 and 64,000 ) localized in or around the cell nucleus .
C0010852
cytoskeletal protein
C0033684
proteins