protein kinase mediated phosphorylation of skeletal sarcoplasmic reticulum resulted in pronounced stimulation of initial rates and levels of e approximately p in sarcoplasmic reticulum preincubated with either ethylene glycol bis ( beta-aminoethyl ether ) -n , n'-tetraacetic acid ( egta ) prior to assay ( ca2+-free sarcoplasmic reticulum ) , or with calcium/egta buffer ( ca2+-bound sarcoplasmic reticulum ) .
C0033640
protein kinase
C0031715
phosphorylation