计算溶液所需的质量、体积或浓度。
ActiBioPure™,EnzymoPure™,生物活性,重组,高性能 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
避光,-20°C储存,干燥,避免反复冻融。超低温运输 。请查阅批次 COA 获取详细规格。
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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
3α-Hydroxysteroid Dehydrogenase catalyze the conversion of 3-ketosteroids into 3α-hydroxy compounds. 3α-Hydroxysteroid dehydrogenase plays an important role in the inactivation of androgen DHT, and can convert DHT into 3α-androstanediol with weak androgen activity, which can be used in the research of hirsutism.
Reaction

Product description
| Appearance: | White amorphous powder |
| Source: | Microorganism |
| Enzyme Commission Number: | EC 1.1.1.50 |
| CAS Number: | 9028-56-2 |
| Storage temperature: | -20℃ |
| Activity: | ≥20U/mg enzyme powder; ≥90U/mg protein |
| Unit definition: | One unit will oxidate one micromole of androsterone per min at pH 8.25 at 25℃. |
Properties
| Stability: | Stable at -20℃ for at least five years | |
| Molecular weight: | 28 kDa (SDS-PAGE) | |
| Isoelectric point: | 6.4 | |
| Michaelis constant: | 3.0×10⁻⁵M (Androsterone)6.0×10⁻⁶M (NAD⁺) | |
| Optimum pH: | 10.5 | {Fig. 1} |
| Optimum temperature: | 50℃-60℃ | {Fig. 3} |
| pH Stability: | 4.5-10.5 (30℃, 20hr) | {Fig. 2} |
| Thermal stability: | < 50℃ (pH 7.2, 20min) | {Fig. 4} |
| Inhibitors: | Cu²⁺,Fe²⁺,Zn²⁺,NEM,Proclin,SDS | |
| Effect of various chemicals: | {Table 1} |
Table 1. Effect of Various Chemicals on HSD
[The enzyme dissolved in 50mM Tris-HCl buffer, pH 7.5 (10U/ml) was incubated with each chemical at 37℃ for 2hr.]
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | H774052 | |
| 分析证书 | H774052 | |
| 分析证书 | H774052 |
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