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

分子量：～440000

級別：BR
活力：≥4units/mg

產品描述：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
性狀：淡褐色粉末。*酯酶有2種：AChE和丁酰*酯酶（BuChE）。兩者的基因結構、氨基酸序列及空間三維結構均顯示了很高的同源性。二者的主要差異在于，AChE水解乙酰*（ACh）和乙酰硫代*（ATCh）比丙酰*（PrCh）快，對丁酰*（BuCh）和丁酰硫代*（BuTCh）沒有明顯的水解作用。丁酰*酯酶與乙酰*酯酶的顯色反應原理是*一樣的。丁酰*酯酶具有靈敏度更高的優點
用途：生化研究。是一類糖蛋白，水解乙酸*。是生物神經傳導中的一種關鍵性酶，同時又是有機磷和氨基甲酸酯殺蟲劑的靶標。保存：2～8℃