a microtubule-associated protein ( the 270-kda map-2 ) was prepared in two defined states of phosphorylation by ( a ) phosphorylation by associated kinase to the extent of 11-14 mol/mol , and ( b ) removal of 70-80 % of this phosphate with a protein phosphatase purified from brain .
C0031715
phosphorylation
C0031727
kinase