a partially purified bovine cortical bone acid phosphatase , which shared similar characteristics with a class of acid phosphatase known as tartrate-resistant acid phosphatase , was found to dephosphorylate phosphotyrosine and phosphotyrosyl proteins , with little activity toward other phosphoamino acids or phosphoseryl histones .
C0070948
phosphotyrosine
C0524823
phosphoamino acids