英文名称：BCHE；BuCHE ；Cholinesterase,butyryl(Horse serum) ；Acylcholine acyl-hydrolase；Choline esterase, butyryl；Pseudocholinesterase
CAS号：9001-08-5

分子量：～440000

级别：BR
活力：≥4units/mg

产品描述：It catalyzes the hydrolysis of a number of choline esters according to the following reaction：Acylcholine+H2O to choline+acid.It is a tetrameric glycoprotein with four subunits of equal size,each having a molecular weight of 110KDa.Butyryl cholinesterase hydrolyzes butyrylcholine four times more rapidly than acetylcholine.It is inhibited by 10^-5 M physostigmine，numerous organophosphate esters,the carbamate derivates and quaternary ammonium saltsunit hydrolyzes 1umole of acetylchoine per minute at 25℃, pH7.4
性状：淡褐色粉末。胆碱酯酶有2种：AChE和丁酰胆碱酯酶(BuChE)。两者的基因结构、氨基酸序列及空间三维结构均显示了很高的同源性。二者的主要差异在于，AChE水解乙酰胆碱(ACh)和乙酰硫代胆碱(ATCh)比丙酰胆碱(PrCh)快，对丁酰胆碱(BuCh)和丁酰硫代胆碱(BuTCh)没有明显的水解作用。丁酰胆碱酯酶与乙酰胆碱酯酶的显色反应原理是完全一样的。丁酰胆碱酯酶具有灵敏度更高的优点
用途：生化研究。是一类糖蛋白，水解乙酸胆碱。是生物神经传导中的一种关键性酶，同时又是有机磷和氨基甲suan酯杀虫剂的靶标。
保存：2～8℃