1FDW

HUMAN 17-BETA-HYDROXYSTEROID-DEHYDROGENASE TYPE 1 MUTANT H221Q COMPLEXED WITH ESTRADIOL


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.178 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Unusual charge stabilization of NADP+ in 17beta-hydroxysteroid dehydrogenase.

Mazza, C.Breton, R.Housset, D.Fontecilla-Camps, J.C.

(1998) J.Biol.Chem. 273: 8145-8152

  • Primary Citation of Related Structures:  1FDU, 1FDV

  • PubMed Abstract: 
  • Type 1 17beta-hydroxysteroid dehydrogenase (17beta-HSD1), a member of the short chain dehydrogenase reductase (SDR) family, is responsible for the synthesis of 17beta-estradiol, the biologically active estrogen involved in the genesis and development ...

    Type 1 17beta-hydroxysteroid dehydrogenase (17beta-HSD1), a member of the short chain dehydrogenase reductase (SDR) family, is responsible for the synthesis of 17beta-estradiol, the biologically active estrogen involved in the genesis and development of human breast cancers. Here, we report the crystal structures of the H221L 17beta-HSD1 mutant complexed to NADP+ and estradiol and the H221L mutant/NAD+ and a H221Q mutant/estradiol complexes. These structures provide a complete picture of the NADP+-enzyme interactions involving the flexible 191-199 loop (well ordered in the H221L mutant) and suggest that the hydrophobic residues Phe192-Met193 could facilitate hydride transfer. 17beta-HSD1 appears to be unique among the members of the SDR protein family in that one of the two basic residues involved in the charge compensation of the 2'-phosphate does not belong to the Rossmann-fold motif. The remarkable stabilization of the NADP+ 2'-phosphate by the enzyme also clearly establishes its preference for this cofactor relative to NAD+. Analysis of the catalytic properties of, and estradiol binding to, the two mutants suggests that the His221-steroid O3 hydrogen bond plays an important role in substrate specificity.


    Related Citations: 
    • The Structure of a Complex of Human 17Beta-Hydroxysteroid Dehydrogenase with Estradiol and Nadp+ Identifies Two Principal Targets for the Design of Inhibitors
      Breton, R.,Housset, D.,Mazza, C.,Fontecilla-Camps, J.C.
      (1996) Structure 4: 905
    • Structure of Human Estrogenic 17 Beta-Hydroxysteroid Dehydrogenase at 2.20 A Resolution
      Ghosh, D.,Pletnev, V.Z.,Zhu, D.W.,Wawrzak, Z.,Duax, W.L.,Pangborn, W.,Labrie, F.,Lin, S.X.
      (1995) Structure 3: 503
    • Human Type I 17Beta-Hydroxysteroid Dehydrogenase: Site Directed Mutagenesis and X-Ray Crystallography Structure-Function Analysis
      Mazza, C.
      (1997) Thesis, Universite Joseph Fourier --: --


    Organizational Affiliation

    Laboratoire de Cristallographie et Cristallogenèse des Protéines, Institut de Biologie Structurale J.-P. Ebel, CEA-CNRS, 41, avenue des Martyrs, F-38027 Grenoble cedex, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
17-BETA-HYDROXYSTEROID DEHYDROGENASE
A
327Homo sapiensGene Names: HSD17B1 (E17KSR, EDH17B1, EDH17B2, EDHB17, SDR28C1)
EC: 1.1.1.62
Find proteins for P14061 (Homo sapiens)
Go to Gene View: HSD17B1
Go to UniProtKB:  P14061
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EST
Query on EST

Download SDF File 
Download CCD File 
A
ESTRADIOL
C18 H24 O2
VOXZDWNPVJITMN-ZBRFXRBCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.178 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 123.670α = 90.00
b = 45.490β = 98.21
c = 61.630γ = 90.00
Software Package:
Software NamePurpose
AMoREphasing
REFMACrefinement
XENGENdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-05-27
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance