| 产品名称 | 乙醇脱氢酶 来源于酿酒酵母 |
|---|---|
| 英文名称 | Alcohol Dehydrogenase from Saccharomyces cerevisiae |
| 别名 | 醇脱氢酶 |
| 英文别名 | ADH, Alcohol Dehydrogenase from yeast; Alcohol:NAD+ oxidoreductase |
| 规格或纯度 | ≥300 units/mg protein |
| 运输条件 | 超低温冰袋运输 |
| 单位定义 | Unit Definition: One Unit reduces one micromole of NAD per minute at 25°C, pH 8.8. |
| 酶学委员会编号 | 1.1.1.1 |
| 生化机理 | 分子量为 141kDa 的四聚体包含了 4 个相同的亚基。每个亚基的活性位点都含有一个锌原子。每个活性位点还含有 2 个反应性巯基以及一个组氨酸残基。 等电点:5.4-5.8 最适 pH:8.6-9.0 底物:酵母乙醇脱氢酶与乙醇最易反应,它的反应活性随着醇体积增大或减小而降低。与支链醇和仲醇的反应活性也非常低。 KM(乙醇)= 2.1×10-3M KM(甲醇)= 1.3×10-1M KM(异丙醇)= 1.4×10-1M 抑制剂:能与游离巯基反应的化合物,包括 N-烷基马来酰亚胺和碘乙酰胺。锌螯合剂的抑制剂,包括 1,10-菲咯啉、 8-羟喹啉、2,2′-联吡啶以及硫脲。 底物类似物抑制剂,包括 β-NAD 类似物、嘌呤和嘧啶衍生物、氯乙醇以及氟乙醇。 吸光系数:E1% = 14.6(水,280nm) |
醇脱氢酶与乳酸脱氢酶已一起用于使用钠(R,S)-[2-3H]乳酸盐酶促还原乙醛的过程中。在预去除醛基后使用醇脱氢酶对NAD的酶促还原进行检测,以对乙醇浓度进行比色测定。
Protein Accession Number: P00330
CATH Classification (v. 3.2.0):
Class: Alpha Beta
Architecture: Alpha-Beta Complex and 3-Layer (aba) Sandwich
Topology: Quinone Oxidoreductase; Chain A, domain 1 and Rossmann fold
Molecular Weight: 146.8 kDa (Theoretical)
Optimal pH: 5.4 (Shore and Theorell 1966)
Isoelectric Point: 6.23 (Theoretical)
Extinction Coefficient:
189,320 cm-1 M-1 (Theoretical)
E1%,280 = 12.89 (Theoretical)
Activators:
Sulfhydryl activating reagents
Mercaptoethanol
Dithiothreitol
Cysteine
Heavy metal chelating agents
(White and White 1997)
Inhibitors:
Heavy metals and -SH reagents
Thiourea
Purine and pyrimidine derivatives
Chloroethanol and fluoroethanol
N-alkylmaleimides
Iodoacetamide
1,10-phenanthroline
8-hydroxyquinoline
Beta-NAD analogs
(White and White 1997)
Applications:
Enzymatic determination of primary alcohols, and aldehydes
Synthesis of chiral compounds
Spectrophotometric assay of plasmalogenase
Enzymatic catalysis in organic solvents
Studies of NAD+, NADH, NADP+, and NADPH
| 个人防护设备 | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| WGK | 3 |
| CAS编号 | 9031-72-5 |
|---|---|
| 敏感性 | 对湿度敏感. |
| 溶解性 | H2O: soluble 1.0 mg/mL, clear to slightly hazy, colorless to faintly yellow |
| 储存温度 | -20°C储存 |
| MDL号 | MFCD00081305 |
| EC号 | 232-870-4 |
| 品牌 | 阿拉丁 |