丁酰胆碱酯酶 500u/mg protein
| 货号 | 规格 | 价格 | 上海 | 北京 | 珠海 | 重庆 | 武汉 | 购买数量 |
|---|---|---|---|---|---|---|---|---|
S22802-100u |
500u/mg protein | ￥1500.00 |
2 | 1 | 3 | - | - |
|
S22802-1ku |
500u/mg protein | ￥9000.00 |
货期：3-5天 | - | - | - | - |
|
产品介绍
丁酰胆碱酯酶 (BChE) 是一种丝氨酸水解酶，结构与乙酰胆碱酯酶 (AChE) 相似，但底物特异性和抑制剂敏感性不同。与 AChE 不同，BChE 能有效地水解较大的胆碱酯，如丁酰胆碱和苯甲酰胆碱。该酶是一种四聚体糖蛋白，具有 4 个相等的亚单位（各 110 kDa）。该酶可被 Ca 2 + 和 Mg 2 + 激活，在 pH 6.0-8.0 范围内活性恒定。可被甜菜碱、尼古丁、有机磷酸盐和氨基甲酸酯抑制。
活力：≥500 units/mg protein。
分子量：tetramer 440 kDa。
来源：马血清。
酶活定义：一个单位将在 pH8.0，37°C 下每分钟将1.0μ 摩尔丁酰胆碱水解为胆碱和丁酸盐。使用丁酰胆碱作为底物获得的活性是使用乙酰胆碱获得的活性的约 2.5 倍。
| 外观： | 含缓冲盐的高纯度冻干粉 |
|---|---|
| 溶解性： | 推荐使用40mM氯化镁溶液进行溶解（镁离子为激活剂） |
| 储存条件： | -20℃ |
| EC编号： | 3.1.1.8 |
| 用途： | 选择性抑制 BChE 活性可用于有机磷酸酯的检测。它在治疗有机磷中毒方面显示了良好的前景。人体血液中 BChE 的水平与对潜在毒性神经毒剂的保护程度之间存在相关性。胆碱酯酶在阿尔茨海默病中的作用也受到关注。对选择性抑制剂的研究可能为 BChE 在健康和患病个体中角色生理作用提供更清晰的认识。在使用脑脊液进行乙酰胆碱酯酶测定时，该酶已被用于检测布比卡因作为丁酰胆碱酯酶的抑制剂。 |
| 注意： | 部分产品我司仅能提供部分信息，我司不保证所提供信息的权威性，仅供客户参考交流研究之用。 |
参考文献(14篇)
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