the major protein phosphatase in the soluble fraction had very similar properties to mammalian protein phosphatase-2a , including preferential dephosphorylation of the alpha subunit of phosphorylase kinase , insensitivity to inhibitors-1 and 2 , activation by protamine and heparin , and exclusion from heparin-sepharose .
C0031686
protein phosphatase
C1704708
protein phosphatase-2a