1AFS

RECOMBINANT RAT LIVER 3-ALPHA-HYDROXYSTEROID DEHYDROGENASE (3-ALPHA-HSD) COMPLEXED WITH NADP AND TESTOSTERONE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Steroid recognition and regulation of hormone action: crystal structure of testosterone and NADP+ bound to 3 alpha-hydroxysteroid/dihydrodiol dehydrogenase.

Bennett, M.J.Albert, R.H.Jez, J.M.Ma, H.Penning, T.M.Lewis, M.

(1997) Structure 5: 799-812


  • PubMed Abstract: 
  • Mammalian 3 alpha-hydroxysteroid dehydrogenases (3 alpha-HSDs) modulate the activities of steroid hormones by reversibly reducing their C3 ketone groups. In steroid target tissues, 3 alpha-HSDs act on 5 alpha-dihydrotestosterone, a potent male sex ho ...

    Mammalian 3 alpha-hydroxysteroid dehydrogenases (3 alpha-HSDs) modulate the activities of steroid hormones by reversibly reducing their C3 ketone groups. In steroid target tissues, 3 alpha-HSDs act on 5 alpha-dihydrotestosterone, a potent male sex hormone (androgen) implicated in benign prostate hyperplasia and prostate cancer. Rat liver 3 alpha-HSD belongs to the aldo-keto reductase (AKR) superfamily and provides a model for mammalian 3 alpha-, 17 beta- and 20 alpha-HSDs, which share > 65% sequence identity. The determination of the structure of 3 alpha-HSD in complex with NADP+ and testosterone (a competitive inhibitor) will help to further our understanding of steroid recognition and hormone regulation by mammalian HSDs.


    Related Citations: 
    • Three-Dimensional Structure of Rat Liver 3 Alpha-Hydroxysteroid/Dihydrodiol Dehydrogenase: A Member of the Aldo-Keto Reductase Superfamily
      Hoog, S.S.,Pawlowski, J.E.,Alzari, P.M.,Penning, T.M.,Lewis, M.
      (1994) Proc.Natl.Acad.Sci.USA 91: 2517
    • Structure of 3 Alpha-Hydroxysteroid/Dihydrodiol Dehydrogenase Complexed with Nadp+
      Bennett, M.J.,Schlegel, B.P.,Jez, J.M.,Penning, T.M.,Lewis, M.
      (1996) Biochemistry 35: 10702


    Organizational Affiliation

    Department of Biochemistry and Biophysics, Johnson Research Foundation, Philadelphia, PA 19104-6059, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3-ALPHA-HYDROXYSTEROID DEHYDROGENASE
A, B
323Rattus norvegicusMutation(s): 0 
Gene Names: Akr1c9
EC: 1.1.1.50
Find proteins for P23457 (Rattus norvegicus)
Go to UniProtKB:  P23457
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAP
Query on NAP

Download SDF File 
Download CCD File 
A, B
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE
C21 H28 N7 O17 P3
XJLXINKUBYWONI-NNYOXOHSSA-N
 Ligand Interaction
TES
Query on TES

Download SDF File 
Download CCD File 
A, B
TESTOSTERONE
C19 H28 O2
MUMGGOZAMZWBJJ-DYKIIFRCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.188 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 96.400α = 90.00
b = 157.100β = 90.00
c = 49.000γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
SCALEPACKdata scaling
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-10-08
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance