抄録
Human serum alkaline phosphatase (ALP) is separated into six bands (ALP1-ALP6) by agar-gel electrophoresis'.
ALP2 originates from the liver, ALP3 from the bone, ALP4 from the placenta and ALP5 from the intestine, respectively. ALP1 and ALP6 are probably ALP6 which has been modified.
They are separated into two groups: one comprises ALP2 and ALP3, and another ALP4 and ALP5, according to their enzymological characteristics (TABLE I ). Then, the physicochemical properties of purified placental and intestinal alkaline phosphatases were comparatively studied.
