Park D H, Woo J I, Hwang O, Ehrlich M, Abate C, Joh T H
Brain Res. 1986 Apr 9;370(2):375-7. doi: 10.1016/0006-8993(86)90497-x.
The isoelectric points (pI) of aromatic-L-amino-acid decarboxylase (AADC) from two species, rat and cow, were determined by chromatofocusing. The enzyme from both rat brain and adrenal has a pI of 5.5, while the bovine adrenal enzyme has a different pI of 5.0. Thus, the variation of isoelectric point for AADC is limited to species differences but not tissue differences.
采用色谱聚焦法测定了大鼠和牛这两种动物的芳香族L-氨基酸脱羧酶(AADC)的等电点(pI)。大鼠脑和肾上腺中的该酶pI为5.5,而牛肾上腺中的该酶pI不同,为5.0。因此,AADC等电点的变化仅限于物种差异,而非组织差异。