CATH Classification

Domain Context

CATH Clusters

Superfamily NADP-dependent oxidoreductase domain
Functional Family Aldo-keto reductase family 1 member C3

Enzyme Information

1.1.1.189
Prostaglandin-E(2) 9-reductase.
based on mapping to UniProt P80508
(5Z,13E)-(15S)-9-alpha,11-alpha,15-trihydroxyprosta-5,13-dienoate + NADP(+) = (5Z,13E)-(15S)-11-alpha,15-dihydroxy-9-oxoprosta-5,13-dienoate + NADPH.
-!- Reduces prostaglandin E(2) to prostaglandin F(2)-alpha. -!- A number of other 9-oxo- and 15-oxo-prostaglandin derivatives can also be reduced to the corresponding hydroxy compounds. -!- May be identical with EC 1.1.1.197.
1.1.1.149
20-alpha-hydroxysteroid dehydrogenase.
based on mapping to UniProt P80508
17-alpha,20-alpha-dihydroxypregn-4-en-3-one + NAD(P)(+) = 17-alpha- hydroxyprogesterone + NAD(P)H.
-!- Re-specific with respect to NAD(P)(+) (cf. EC 1.1.1.62).

UniProtKB Entries (1)

P80508
PE2R_RABIT
Oryctolagus cuniculus
Prostaglandin-E(2) 9-reductase

PDB Structure

PDB 1Q13
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Loop relaxation, a mechanism that explains the reduced specificity of rabbit 20alpha-hydroxysteroid dehydrogenase, a member of the aldo-keto reductase superfamily.
Couture, J.F., Legrand, P., Cantin, L., Labrie, F., Luu-The, V., Breton, R.
J. Mol. Biol.
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