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Literature summary extracted from

  • Dhagat, U.; Carbone, V.; Chung, R.P.; Schulze-Briese, C.; Endo, S.; Hara, A.; El-Kabbani, O.
    Structure of 3(17)alpha-hydroxysteroid dehydrogenase (AKR1C21) holoenzyme from an orthorhombic crystal form: an insight into the bifunctionality of the enzyme (2007), Acta Crystallogr. Sect. F, 63, 825-830.
    View publication on PubMedView publication on EuropePMC

Crystallization (Commentary)

EC Number Crystallization (Comment) Organism
1.1.1.209 purified recombinant enzyme, in a AKR1C21-NADPH binary complex, hanging drop vapour diffusion method, 22°C, 18 mg/ml of protein in 0.1 M HEPES, pH 7.5, 10% PEG 6000, and 5% 2-methyl-2,4-pentanediol, mixing with an equal volume of the crystallization buffer, and equilibration against 1 ml reservoir solution, X-ray diffraction structure determination and analysis at 1.8 A resolution Mus musculus

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1.1.1.209 21-hydroxy-5beta-pregnane-3,20-dione + NADPH Mus musculus
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 21-hydroxy-5beta-pregnane-20alpha-ol-3-one + NADP+
-
 r
1.1.1.209 5beta-pregnane-3alpha,20alpha-diol + NADPH + H+ Mus musculus
-
 5beta-pregnane-20alpha-ol-3-one + NADP+
-
 r
1.1.1.209 androstenedione + NADPH + H+ Mus musculus
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 androsterone + NADP+
-
 r

Organism

EC Number Organism UniProt Comment Textmining
1.1.1.209 Mus musculus Q91WR5
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-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1.1.1.209 21-hydroxy-5beta-pregnane-3,20-dione + NADPH
-
 Mus musculus 21-hydroxy-5beta-pregnane-20alpha-ol-3-one + NADP+
-
 r
1.1.1.209 5beta-pregnane-3alpha,20alpha-diol + NADPH + H+
-
 Mus musculus 5beta-pregnane-20alpha-ol-3-one + NADP+
-
 r
1.1.1.209 androstenedione + NADPH + H+
-
 Mus musculus androsterone + NADP+
-
 r
1.1.1.209 additional information a bifunctional enzyme that catalyses the oxidoreduction of the 3- and 17-hydroxy/keto groups of steroid substrates such as oestrogens, androgens and neurosteroids, 5beta-pregnane-3alpha,20alpha-diol, 21-hydroxy-5beta-pregnane-3,20-dione, and androstenedione are docked into the substrate-binding cavity and structure analysis, Lys31, Gly225 and Gly226 are important for ligand recognition and orientation in the active site, molecular-docking simulations, overview Mus musculus ?
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 ?

Synonyms

EC Number Synonyms Comment Organism
1.1.1.209 3(17)alpha-hydroxysteroid dehydrogenase
-
 Mus musculus
1.1.1.209 AKR1C21
-
 Mus musculus

Cofactor

EC Number Cofactor Comment Organism Structure
1.1.1.209 NADP+ binding structure, overview Mus musculus
1.1.1.209 NADPH binding structure, overview Mus musculus