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- 介绍:1940年发现的第一个锌酶,也是最重要的锌酶。现已报道有80多种锌酶,居各类金属的首位。碳酸酐酶是红细胞的主要蛋白质成分之一,在红细胞中的地位仅次于血红蛋白。含一条卷曲的蛋白质链和一个锌(Ⅱ)离子。锌离子处于变形四面体的配位环境。催化的最重要的反应是二氧化碳(碳酸酐)可逆的水合作用,使它在生理pH值条件(pH值≌7)下很快进行。为催化H2CO3CO2+H2O反应的酶,酶加速二氧化碳水合的因子在10^7左右。
- 来源:牛红细胞。
- 分子量:约29000。
- 活力:≥2500units/mg protein。
- 活力定义:One Wilbur-Anderson (W-A) unit will cause the pH of a 0.02 M Trizma buffer to drop from 8.3 to 6.3 per min at 0°C. (One W-A unit is essentially equivalent to one Roughton-Booth unit.)。
- 性状(以下信息仅供参考):灰褐色或类白色粉末。
- 储存条件: 2~8℃
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