CATH Classification

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 1XJB
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Comparison of crystal structures of human type 3 3alpha-hydroxysteroid dehydrogenase reveals an "induced-fit" mechanism and a conserved basic motif involved in the binding of androgen
Couture, J.-F., Roy, A.-M., Cantin, L., Legrand, P., Luu-The, V., Labrie, F., Breton, R.
Protein Sci.