CATH Classification

Domain Context

CATH Clusters

Superfamily NAD(P)-binding Rossmann-like Domain
Functional Family NADP-dependent L-serine/L-allo-threonine dehydrogenase

Enzyme Information

1.1.1.62
17-beta-estradiol 17-dehydrogenase.
based on mapping to UniProt Q6UWP2
17-beta-estradiol + NAD(P)(+) = estrone + NAD(P)H.
-!- The enzyme oxidizes or reduces the hydroxy/keto group on C(17) of estrogens and androgens in mammals and regulates the biological potency of these steroids. -!- The mammalian enzyme is bifunctional and also catalyzes EC 1.1.1.270. -!- The enzyme also acts on (S)-20-hydroxypregn-4-en-3-one and related compounds, oxidizing the (S)-20-group, but unlike EC 1.1.1.149, it is Si-specific with respect to NAD(P)(+).
1.1.1.270
3-beta-hydroxysteroid 3-dehydrogenase.
based on mapping to UniProt Q6UWP2
A 3-beta-hydroxysteroid + NADP(+) = a 3-oxosteroid + NADPH.
-!- The enzyme acts on multiple 3-beta-hydroxysteroids. -!- Participates in the biosynthesis of zemosterol and cholesterol, where it catalyzes the reaction in the opposite direction to that shown. -!- The mammalian enzyme is bifunctional and also catalyzes EC 1.1.1.62.

UniProtKB Entries (1)

Q6UWP2
DHR11_HUMAN
Homo sapiens
Dehydrogenase/reductase SDR family member 11

PDB Structure

PDB 1XG5
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Structural Genomics Consortium: Structure of the putative human dehydrogenase MGC4172
Kavanagh, K., Ng, S., Sharma, S., Vedadi, M., von Delft, F., Walker, J.R., dhe Paganon, S., Bray, J., Oppermann, U., Edwards, A., Arrowsmith, C., Sundstrom, M.
To be Published
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