产品说明
应用
Aqueous solution may be used directly for derivatization without previous dialysis or gel permeation chromatography.
生化/生理作用
β-半乳糖苷酶可将乳糖切割成单糖成分(葡萄糖和半乳糖)。它还在反馈环中催化葡萄糖转糖基化为β-半乳糖苷酶的诱导物 - 异乳糖。
包装
Bottomless glass bottle. Contents are inside inserted fused cone.
物理属性
四聚体的分子量为465 kDa(每个亚基116.3 kDa)
单位定义
1 U corresponds to the amount of enzyme which hydrolyzes 1 μmol 2-nitrophenyl-β-D-galactopyranoside (Cat. No. 73660) per minute at pH 7.8 and 37 ℃
其他说明
Used in a highly sensitive enzyme-linked immunoassay of human IgG with 4-methylumbelliferyl-β-D-galactoside (Catalog No. 69590); Evaluation of β-D-galactosidase (E. coli) and horse radish peroxidase as labels by sandwich enzyme immunoassay technique; Enzyme immunoassay of thyrptropin releasing hormone (TRH); Preparation of enzyme-antibody conjugates
基本信息
| 酶学委员会(EC)编号 | 3.2.1.23 ( BRENDA | IUBMB ) |
| EC 号 | 232-864-1 |
| MDL编号 | MFCD00130623 |
| NACRES | NA.54 |
产品性质
| 形式 | powder |
| 质量水平 | 100 |
| 质量 | lyophilized |
| specific activity | ~140 U/mg |
| 分子量 | Mr ~135000 |
| 包含 | phosphate buffer as stabilizer sucrose as stabilizer |
| technique(s) | enzyme immunoassay: suitable |
| 运输 | wet ice |
| 储存温度 | −20℃ |
安全信息
| 储存分类代码 | 13 - Non Combustible Solids |
| WGK | WGK 3 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
| 个人防护装备 | Eyeshields, Gloves, type N95 (US) |
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