Whitaker K B, Moss D W
Biochem J. 1979 Oct 1;183(1):189-92. doi: 10.1042/bj1830189.
Peptides with different chromatographic and electrophoretic properties were obtained from human placental and renal alkaline phosphatases by tryptic digestion of the enzymes labelled with radioactive orthophosphate at their active centres. These results provide structural evidence for the distinct genetic origins of the two isoenzymes that had previously been inferred from their different properties and from the observed phenotypic variation of placental phosphatase.
通过对在活性中心用放射性正磷酸盐标记的人胎盘碱性磷酸酶和肾碱性磷酸酶进行胰蛋白酶消化,获得了具有不同色谱和电泳特性的肽段。这些结果为两种同工酶不同的遗传起源提供了结构证据,这两种同工酶先前已根据它们不同的特性以及观察到的胎盘磷酸酶表型变异推断得出。