1G3M

CRYSTAL STRUCTURE OF HUMAN ESTROGEN SULFOTRANSFERASE IN COMPLEX WITH IN-ACTIVE COFACTOR PAP AND 3,5,3',5'-TETRACHLORO-BIPHENYL-4,4'-DIOL


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystallographic analysis of a hydroxylated polychlorinated biphenyl (OH-PCB) bound to the catalytic estrogen binding site of human estrogen sulfotransferase.

Shevtsov, S.Petrotchenko, E.V.Pedersen, L.C.Negishi, M.

(2003) Environ.Health Perspect. 111: 884-888


  • PubMed Abstract: 
  • Certain hydroxylated polychlorinated biphenyls (OH-PCBs) inhibit the human estrogen sulfotransferase (hEST) at subnanomolar concentrations, suggesting a possible pathway for PCB toxicity due to environmental exposure in humans. To address the structu ...

    Certain hydroxylated polychlorinated biphenyls (OH-PCBs) inhibit the human estrogen sulfotransferase (hEST) at subnanomolar concentrations, suggesting a possible pathway for PCB toxicity due to environmental exposure in humans. To address the structural basis of the inhibition, we have determined the crystal structure of hEST in the presence of the sulfuryl donor product 3 -phosphoadenosine 5 -phosphate and the OH-PCB 4,4 -OH 3,5,3,5 -tetraCB. The OH-PCB binds in the estrogen binding site with the position of the first phenolic ring in an orientation similar to the phenolic ring of 17 beta-estradiol. Interestingly, the OH-PCB does not bind in a planar conformation, but rather with a 30-degree twist between the phenyl rings. The crystal structure of hEST with the OH-PCB bound gives physical evidence that certain OH-PCBs can mimic binding of estrogenic compounds in biological systems.


    Organizational Affiliation

    Pharmacogenetic Section, Laboratory of Reproductive and Developmental Toxicology, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina 27709, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ESTROGEN SULFOTRANSFERASE
A, B
294Homo sapiensMutation(s): 0 
Gene Names: SULT1E1 (STE)
EC: 2.8.2.4
Find proteins for P49888 (Homo sapiens)
Go to Gene View: SULT1E1
Go to UniProtKB:  P49888
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PCQ
Query on PCQ

Download SDF File 
Download CCD File 
A, B
3,5,3',5'-TETRACHLORO-BIPHENYL-4,4'-DIOL
C12 H6 Cl4 O2
YCYDXOVJXVALHY-UHFFFAOYSA-N
 Ligand Interaction
A3P
Query on A3P

Download SDF File 
Download CCD File 
A, B
ADENOSINE-3'-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
WHTCPDAXWFLDIH-KQYNXXCUSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
PCQIC50: ~0.15 nM BINDINGMOAD
PCQIC50: 0.1 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.193 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 62.687α = 90.00
b = 96.894β = 92.58
c = 61.724γ = 90.00
Software Package:
Software NamePurpose
CCP4model building
DENZOdata reduction
CCP4phasing
CNSrefinement
CNSphasing
SCALEPACKdata scaling
Omodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-07-22
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance