Structure of Human Placental Estrone/DHEA Sulfatase

Experimental Data Snapshot

  • Resolution: 2.60 Å
  • R-Value Free: 0.301 
  • R-Value Work: 0.254 
  • R-Value Observed: 0.254 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history

Re-refinement Note

A newer entry is available that reflects an alternative modeling of the original data: 8EG3


Structure of Human Estrone Sulfatase Suggests Functional Roles of Membrane Association

Hernandez-Guzman, F.G.Higashiyama, T.Pangborn, W.Osawa, Y.Ghosh, D.

(2003) J Biol Chem 278: 22989-22997

  • DOI: https://doi.org/10.1074/jbc.M211497200
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Estrone sulfatase (ES; 562 amino acids), one of the key enzymes responsible for maintaining high levels of estrogens in breast tumor cells, is associated with the membrane of the endoplasmic reticulum (ER). The structure of ES, purified from the microsomal fraction of human placentas, has been determined at 2.60-A resolution by x-ray crystallography. This structure shows a domain consisting of two antiparallel alpha-helices that protrude from the roughly spherical molecule, thereby giving the molecule a "mushroom-like" shape. These highly hydrophobic helices, each about 40 A long, are capable of traversing the membrane, thus presumably anchoring the functional domain on the membrane surface facing the ER lumen. The location of the transmembrane domain is such that the opening to the active site, buried deep in a cavity of the "gill" of the "mushroom," rests near the membrane surface, thereby suggesting a role of the lipid bilayer in catalysis. This simple architecture could be a prototype utilized by the ER membrane in dictating the form and the function of ER-resident enzymes.

  • Organizational Affiliation

    Department of Structural Biology, Hauptman-Woodward Medical Research Institute, Buffalo, New York 14203, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
STERYL-SULFATASE562Homo sapiensMutation(s): 1 
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P08842 (Homo sapiens)
Explore P08842 
Go to UniProtKB:  P08842
PHAROS:  P08842
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08842
Sequence Annotations
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
Query on ALS
Experimental Data & Validation

Experimental Data

  • Resolution: 2.60 Å
  • R-Value Free: 0.301 
  • R-Value Work: 0.254 
  • R-Value Observed: 0.254 
  • Space Group: P 3 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 116.98α = 90
b = 116.98β = 90
c = 102.66γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
CCP4data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-08-12
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2015-12-02
    Changes: Non-polymer description
  • Version 1.4: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Database references, Derived calculations, Structure summary