CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
|   | 3 | Alpha Beta | 
|   | 3.20 | Alpha-Beta Barrel | 
|   | 3.20.20 | TIM Barrel | 
|   | 3.20.20.100 | NADP-dependent oxidoreductase domain | 
Domain Context
CATH Clusters
| Superfamily | NADP-dependent oxidoreductase domain | 
| Functional Family | Aldo-keto reductase family 1 member C3 | 
Enzyme Information
| 1.3.1.20 | Trans-1,2-dihydrobenzene-1,2-diol dehydrogenase. based on mapping to UniProt P52895 Trans-1,2-dihydrobenzene-1,2-diol + NADP(+) = catechol + NADPH. | 
| 1.1.1.357 | 3-alpha-hydroxysteroid 3-dehydrogenase. based on mapping to UniProt P52895 A 3-alpha-hydroxysteroid + NAD(P)(+) = a 3-oxosteroid + NAD(P)H. -!- The enzyme acts on multiple 3-alpha-hydroxysteroids, such as androsterone and 5 alpha-dihydrotestosterone. -!- The mammalian enzymes are involved in inactivation of steroid hormones, while the bacterial enzymes are involved in steroid degradation. -!- This entry stands for enzymes whose stereo-specificity with respect to NAD(+) or NADP(+) is not known (cf. EC 1.1.1.50 and EC 1.1.1.213). | 
| 1.-.-.- | Oxidoreductases. based on mapping to UniProt P52895 | 
UniProtKB Entries (1)
| P52895 | AK1C2_HUMAN Homo sapiens Aldo-keto reductase family 1 member C2 | 
PDB Structure
| PDB | 4XO6 | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | |
| Primary Citation | Human 3 alpha-hydroxysteroid dehydrogenase type 3: structural clues of 5 alpha-DHT reverse binding and enzyme down-regulation decreasing MCF7 cell growth. Biochem.J. | 
