| 存贮条件 | 储存温度 -20°C |
| 产品介绍 | Hydroxysteroid dehydrogenases catalyze the interconversion of hydroxyl and carboxyl groups of steroids. P.testosteroni derived hydroxysteroid dehydrogenases are of two types: 3-α-hydroxysteroid dehydrogenase (α enzyme) and 3-β-hydroxysteroid dehydrogenase (β enzyme). The α enzyme has a molecular weight of 47,000 daltons. The α enzyme oxidizes only 3-α-hydroxysteroids of the C19, C21 and C24 series. It is inhibited by heavy metals and sulfhydryl-binding agents. The β enzyme catalyzes the oxidation of 3-β-hydroxysteroids of the C19 and C21 series, 17-β-hydroxysteroids of the C18, C19 and C21 series, as well as certain 16-β-hydroxysteroids. It is inhibited by heavy metals and reducing agents. The oxidation of testosterone is inhibited by 3,17-α-estradiol and other 1,3,5-estradiene derivatives. Aladdin supplies two preparations: one from the regular P. testosteroni (ATCC 11966) culture which produces both the α and the β enzymes, and a second from a mutant strain which produces almost exclusively the α enzyme. By using both, the β-hydroxysteroid can be determined by difference. |
| 备注 | A purified powder obtained from adapted cells of a mutant strain. Activity on androsterone only, no activity exhibited on testosterone. |
| 别名 | ; |
睾丸假单胞菌中的羟基类固醇脱氢酶
产品编号：H128454
品牌：阿拉丁
产品特点：
| 货号 | 包装 | 规格 | 目录价 | 您的价格 | 库存 | 数量 | 购买 |
|---|---|---|---|---|---|---|---|
| H128454-10UN | 10UN | ≥0.5 units/mg dry weight | ¥2039.90 |
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| H128454-50UN | 50UN | ≥0.5 units/mg dry weight | ¥6951.90 |
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| 信号词 | Warning |
| 危害声明 | H315-H319-H335 |
| 警示性声明 | P261-P305 + P351 + P338 |
| 个人防护设备 | dust mask type N95 (US)， Eyeshields， Gloves |
| RTECS | VT9632300 |
| WGK德国 | 2 |
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