1.1.1.159: 7alpha-hydroxysteroid dehydrogenase

This is an abbreviated version, for detailed information about 7alpha-hydroxysteroid dehydrogenase, go to the full flat file.

Reaction

cholate
+
NAD+
=
3alpha,12alpha-dihydroxy-7-oxo-5beta-cholan-24-oate
+
NADH
+
H+

Synonyms

7-alpha-HSDH, 7-HSDH, 7alpha-HSD, 7alpha-HSDH, 7alpha-hydroxy steroid dehydrogenase, 7alpha-hydroxysteroid dehydrogenase, Bile acid-inducible protein, CA 7alpha-HSDH, Ca7alpha-HSDH, dehydrogenase, 7alpha-hydroxy steroid

ECTree

     1 Oxidoreductases
         1.1 Acting on the CH-OH group of donors
             1.1.1 With NAD+ or NADP+ as acceptor
                1.1.1.159 7alpha-hydroxysteroid dehydrogenase

Crystallization

Crystallization on EC 1.1.1.159 - 7alpha-hydroxysteroid dehydrogenase

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Crystallization/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
purified recombinant enzyme complexed with taurochenodeoxycholic acid and NADP+, sitting drop vapour diffusion method, mixing of 200 nl of 1.12 mM protein in 50 mM Tris-HCl, pH 8.0, 200 mM NaCl,and 5.6 mM of NADP+ and taurochenodeoxycholic acid, with 200 nl of reservoir solution containing 0.1 M HEPES, pH 7.5, and 25% PEG-3350, and equilibration against 0.03 ml reservoir solution, at 20C, X-ray diffraction structure determination and analysis at 2.0 A resolution
-
binary complex with NAD+, ternary complex with NADH and 7-oxoglycochenodeoxycholic acid as product, as well as possibly partially glycochenodeoxycholic acid as substrat