to test qualitatively and quantitatively the theories and equations involved in this analysis , a model in vitro phosphorylation/dephosphorylation cyclic cascade was developed in which the converter enzymes catalyzing the covalent modifications were camp-dependent protein kinase ( ec 2.7.1.37 ; type ii ) and phosphoprotein phosphatase ( ec 3.1.3.16 ; mr = 38,000 ) , both purified to near homogeneity from bovine heart .
C1158884
dephosphorylation
C0031686
phosphoprotein phosphatase