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Merck
CN

C3389

Sigma-Aldrich

乙酰胆碱酯酶 来源于电鳗

Type VI-S, lyophilized powder, 200-1,000 units/mg protein

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别名:
AChE, 乙酰胆碱乙酰水解酶, 胆碱酯酶,乙酰基
CAS号:
EC 号:
MDL编号:
UNSPSC代码:
12352204
NACRES:
NA.77

类型

Type VI-S

质量水平

形式

lyophilized powder

比活

200-1,000 units/mg protein

分子量

280 kDa

组成

Protein, ≥45% biuret

溶解性

20 mM Tris HCl buffer, pH 7.5: soluble 1.0 mg/mL, clear(lit.)

应用

diagnostic assay manufacturing

储存温度

−20°C

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一般描述

分子量: 280 kDa
等电点: 5.5
消光系数: E1%= 18.0(280 nm)

来自 Electrophorus electricus 的乙酰胆碱酯酶是由 4 个相等的亚基组成的四聚体,每个亚基 70kDa。每个子单元包含一个活性位点。该酶是含有己糖胺的糖蛋白。

应用

来自sigma的酶已被用作评估阿斯巴甜代谢物对海马乙酰胆碱酯酶活性影响的参考。该酶还用于快速检测乙酰硫代胆碱氯化物的固定化研究中。

生化/生理作用

体内乙酰胆碱的主要降解酶。 将乙酰胆碱 + H2O 转化为胆碱+乙酸。

单位定义

一单位在37°C、pH 8.0条件下每分钟可将1.0 μ摩尔的乙酰胆碱水解成胆碱和醋酸盐 。

外形

含 Tris 缓冲盐的冻干粉

制备说明

该酶可在20 mM Tris-HCl, pH 7.5中以1 mg/mL的浓度溶解并产生清亮的溶液。

分析说明

使用乙酰胆碱作为底物而获得的活性是丁基胆碱通过使用来自电鳗的乙酰胆碱酯酶而获得活性的30-100倍。

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

法规信息

动植物源性产品

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