STK35: Proteins and Enzymes

STK35 associates with the PDZ-LIM protein CLP36 through the LIM domain and undergoes autophosphorylation in vitro. STK35 localizes predominantly to the nucleus; however, cotransfection of STK35 with CLP36 demonstrated redistribution of STK35 to the cytoplasm and into actin stress fibers, where it colocalizes with CLP36. The presence of STK35 disrupted the periodic staining pattern of CLP36 in these fibers. It is suggested that CLP36 specifically targets STK35 to actin stress fibers and that STK35 may represent a regulator of the actomyosin cytoskeleton in nonmuscle cells.