产品描述
概述
Superoxide dismutase (SOD) catalyzes the removal of the O2-free radical. The enzyme protects oxygen-metabolizing cells against harmful effects of superoxide free-radicals. Superoxide dismutase is inactivated by H2O2. It consists of two subunits of identical molecular weight joined by a disulfide bond. The molecular weight is 32,500 daltons, and there are two Cu(II) and two Zn(II) atoms per molecule. The isoelectric point of the enzyme is 4.95.
属性
生物来源 |
牛红细胞
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活性 |
Activity ≥1,400 U/mg dw
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单位定义 |
在规定条件下,一个单位可抑制硝基蓝四氮唑最大还原量的 50%。
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