1HDC

MECHANISM OF INHIBITION OF 3ALPHA,20BETA-HYDROXYSTEROID DEHYDROGENASE BY A LICORICE-DERIVED STEROIDAL INHIBITOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Work: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Mechanism of inhibition of 3 alpha, 20 beta-hydroxysteroid dehydrogenase by a licorice-derived steroidal inhibitor.

Ghosh, D.Erman, M.Wawrzak, Z.Duax, W.L.Pangborn, W.

(1994) Structure 2: 973-980


  • PubMed Abstract: 
  • Bacterial 3 alpha, 20 beta-hydroxysteroid dehydrogenase (3 alpha, 20 beta-HSD) reversibly oxidizes the 3 alpha and 20 beta hydroxyl groups of androstanes and pregnanes and uses nicotinamide adenine dinucleotide as a cofactor. 3 alpha, 20 beta-HSD bel ...

    Bacterial 3 alpha, 20 beta-hydroxysteroid dehydrogenase (3 alpha, 20 beta-HSD) reversibly oxidizes the 3 alpha and 20 beta hydroxyl groups of androstanes and pregnanes and uses nicotinamide adenine dinucleotide as a cofactor. 3 alpha, 20 beta-HSD belongs to a family of short-chain dehydrogenases that has a highly conserved Tyr-X-X-X-Lys sequence. The family includes mammalian enzymes involved in hypertension, digestion, fertility and spermatogenesis. Several members of the enzyme family, including 3 alpha, 20 beta-HSD, are competitively inhibited by glycyrrhizic acid, a steroidal compound found in licorice, and its derivative, carbenoxolone, an anti-inflammatory glucocorticoid.


    Related Citations: 
    • Inhibition of Streptomyces Hydrogenans 3Alpha,20Beta-Hydroxysteroid Dehydrogenase by Licorice-Derived Compounds and Crystallization of an Enzyme-Cofactor-Inhibitor Complex
      Ghosh, D.,Erman, M.,Pangborn, W.,Duax, W.L.,Baker, M.E.
      (1992) J.Steroid Biochem.Mol.Biol. 42: 849


    Organizational Affiliation

    Hauptman-Woodward Medical Research Institute, Buffalo, NY 14203-1196.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3-ALPHA, 20 BETA-HYDROXYSTEROID DEHYDROGENASE
A, B, C, D
254Streptomyces exfoliatusEC: 1.1.1.53
Find proteins for P19992 (Streptomyces exfoliatus)
Go to UniProtKB:  P19992
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CBO
Query on CBO

Download SDF File 
Download CCD File 
A, B, C, D
CARBENOXOLONE
C34 H50 O7
OBZHEBDUNPOCJG-WBXJDKIVSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
CBOKi: 1000 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Work: 0.194 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 72.050α = 101.78
b = 60.040β = 104.41
c = 59.840γ = 96.31

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1994-10-21 
  • Released Date: 1995-02-07 
  • Deposition Author(s): Ghosh, D.

Revision History 

  • Version 1.0: 1995-02-07
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other