the cytoskeleton-associated ptp-phosphatase was distinguished from acid , alkaline and other protein ser ( p ) ( phosphoserine ) /thr ( p ) ( phosphothreonine ) phosphatases by its neutral ph optimum , activity in the presence of edta , inhibition by zn2+ , vanadate , or molybdate , and low activity with either [ ser ( p ) ] phosphorylase a or p-nitrophenyl phosphate .
C0085536
ptp-phosphatase
C0031678
phosphatases