5JCW

Crystal Structure of hGSTP1-1 with Glutathione Adduct of Phenethyl Isothiocyanate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.945 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.154 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Irreversible Inhibition of Glutathione S-Transferase by Phenethyl Isothiocyanate (PEITC), a Dietary Cancer Chemopreventive Phytochemical.

Kumari, V.Dyba, M.A.Holland, R.J.Liang, Y.H.Singh, S.V.Ji, X.

(2016) Plos One 11: e0163821-e0163821

  • DOI: 10.1371/journal.pone.0163821
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Dietary isothiocyanates abundant as glucosinolate precursors in many edible cruciferous vegetables are effective for prevention of cancer in chemically-induced and transgenic rodent models. Some of these agents, including phenethyl isothiocyanate (PE ...

    Dietary isothiocyanates abundant as glucosinolate precursors in many edible cruciferous vegetables are effective for prevention of cancer in chemically-induced and transgenic rodent models. Some of these agents, including phenethyl isothiocyanate (PEITC), have already advanced to clinical investigations. The primary route of isothiocyanate metabolism is its conjugation with glutathione (GSH), a reaction catalyzed by glutathione S-transferase (GST). The pi class GST of subunit type 1 (hGSTP1) is much more effective than the alpha class GST of subunit type 1 (hGSTA1) in catalyzing the conjugation. Here, we report the crystal structures of hGSTP1 and hGSTA1 each in complex with the GSH adduct of PEITC. We find that PEITC also covalently modifies the cysteine side chains of GST, which irreversibly inhibits enzymatic activity.


    Related Citations: 
    • Structure and function of residue 104 and water molecules in the xenobiotic substrate-binding site in human glutathione S-transferase P1-1.
      Ji, X.,Blaszczyk, J.,Xiao, B.,O'Donnell, R.,Hu, X.,Herzog, C.,Singh, S.V.,Zimniak, P.
      (1999) Biochemistry 38: 10231


    Organizational Affiliation

    Center for Cancer Research, National Cancer Institute, Frederick, Maryland, United States of America.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glutathione S-transferase P
A, B
210Homo sapiensMutation(s): 0 
Gene Names: GSTP1 (FAEES3, GST3)
EC: 2.5.1.18
Find proteins for P09211 (Homo sapiens)
Go to Gene View: GSTP1
Go to UniProtKB:  P09211
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GVX
Query on GVX

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Download CCD File 
A, B
L-gamma-glutamyl-S-[(2-phenylethyl)carbamothioyl]-L-cysteinylglycine
C19 H26 N4 O6 S2
WSGBVCNCZSZCGE-KBPBESRZSA-N
 Ligand Interaction
ACT
Query on ACT

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Download CCD File 
A, B
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
CA
Query on CA

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Download CCD File 
A, B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
GSH
Query on GSH

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Download CCD File 
A
GLUTATHIONE
C10 H17 N3 O6 S
RWSXRVCMGQZWBV-WDSKDSINSA-N
 Ligand Interaction
MPD
Query on MPD

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Download CCD File 
A, B
(4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.945 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.154 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 78.365α = 90.00
b = 88.943β = 97.85
c = 69.483γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
SCALEPACKdata scaling
DENZOdata reduction
PHENIXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2016-04-15 
  • Released Date: 2016-10-12 
  • Deposition Author(s): Kumari, V., Ji, X.

Revision History 

  • Version 1.0: 2016-10-12
    Type: Initial release