5JCW

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.154 
  • R-Value Observed: 0.155 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 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: https://doi.org/10.1371/journal.pone.0163821
  • Primary Citation of Related Structures:  
    5JCU, 5JCW

  • 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 (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.


  • Organizational Affiliation

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


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Glutathione S-transferase P
A, B
210Homo sapiensMutation(s): 0 
Gene Names: GSTP1FAEES3GST3
EC: 2.5.1.18
UniProt & NIH Common Fund Data Resources
Find proteins for P09211 (Homo sapiens)
Explore P09211 
Go to UniProtKB:  P09211
PHAROS:  P09211
GTEx:  ENSG00000084207 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP09211
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GVX
Query on GVX

Download Ideal Coordinates CCD File 
C [auth A],
K [auth B]
L-gamma-glutamyl-S-[(2-phenylethyl)carbamothioyl]-L-cysteinylglycine
C19 H26 N4 O6 S2
WSGBVCNCZSZCGE-KBPBESRZSA-N
GSH
Query on GSH

Download Ideal Coordinates CCD File 
J [auth A]GLUTATHIONE
C10 H17 N3 O6 S
RWSXRVCMGQZWBV-WDSKDSINSA-N
MPD
Query on MPD

Download Ideal Coordinates CCD File 
D [auth A],
L [auth B]
(4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
ACT
Query on ACT

Download Ideal Coordinates CCD File 
E [auth A],
M [auth B]
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
CA
Query on CA

Download Ideal Coordinates CCD File 
F [auth A]
G [auth A]
H [auth A]
I [auth A]
N [auth B]
F [auth A],
G [auth A],
H [auth A],
I [auth A],
N [auth B],
O [auth B],
P [auth B],
Q [auth B]
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.154 
  • R-Value Observed: 0.155 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.365α = 90
b = 88.943β = 97.85
c = 69.483γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
DENZOdata reduction
SCALEPACKdata scaling
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-10-12
    Type: Initial release
  • Version 1.1: 2023-08-30
    Changes: Data collection, Database references, Derived calculations, Structure summary
  • Version 1.2: 2023-09-27
    Changes: Refinement description