brush border myosin atpase can thus be activated by phosphorylation either at threonine , by calmodulin-independent kinase , or at serine , by calmodulin-dependent myosin light chain kinase , as previously shown [ ( 1987 ) febs lett . 223 , 262-266 ] .
C0031715
phosphorylation
C0027120
myosin light chain kinase