Parkes R D, Blackmore D J
Res Vet Sci. 1977 Sep;23(2):248-9.
Equine placental extracts show phosphatase activity with a pH optimum between 4.5 and 6. The enzyme shows heat stability to 45 degrees C and electrophoresis on cellulose acetate demonstrates the presence of two bands of activity. Histochemistry confirms the presence of phosphatase activity in the placental villi. Assay of plasma samples from pregnant mares showed no increase in phosphatase activity through pregnancy under conditions of test.
马胎盘提取物显示磷酸酶活性，最适pH值在4.5至6之间。该酶在45摄氏度下具有热稳定性，在醋酸纤维素上进行电泳显示有两条活性带。组织化学证实胎盘绒毛中存在磷酸酶活性。对怀孕母马的血浆样本进行检测，发现在测试条件下，整个孕期磷酸酶活性没有增加。
