5YVN

Human Glutathione Transferase Omega1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.33 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.176 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Glutathione transferase Omega 1-1 (GSTO1-1) modulates Akt and MEK1/2 signaling in human neuroblastoma cell SH-SY5Y.

Saisawang, C.Wongsantichon, J.Robinson, R.C.Ketterman, A.J.

(2019) Proteins 87: 588-595

  • DOI: https://doi.org/10.1002/prot.25683
  • Primary Citation of Related Structures:  
    5YVN, 5YVO

  • PubMed Abstract: 

    In the human neuroblastoma SH-SY5Y cell line, the glutathione transferase Omega 1-1 (GSTO1-1) appears to modulate Akt and MEK1/2 kinase activation. We observed a glutathionylation modification was involved in the activation of Akt but not MEK1/2. With the specific GSTO1-1 inhibitor ML175, we show the enzyme activity of GSTO1-1 is important for modulation as the inhibited GSTO1-1 allowed activation of both Akt and MEK1/2. The inhibition of GSTO1-1 showed a similar extent of activation of Akt and MEK1/2 as treatment by the endotoxin lipopolysaccharide. The GSTO1-1 also either directly interacts with Akt and MEK1/2 or interacts with a protein complexed with Akt and MEK1/2 as both kinases coimmunoprecipitated with GSTO1-1. The results suggest that GSTO1-1 enzyme activity inhibits the activation of these two kinases to maintain basal levels. The possible regulation by GSTO1-1 is of interest as both kinases have hundreds of potential downstream targets that are known to have contributions to various cellular processes including survival, growth, proliferation, and metabolism.


  • Organizational Affiliation

    Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom, Thailand.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Glutathione S-transferase omega-1241Homo sapiensMutation(s): 0 
Gene Names: GSTO1GSTTLP28
EC: 2.5.1.18 (PDB Primary Data), 1.8.5.1 (PDB Primary Data), 1.20.4.2 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for P78417 (Homo sapiens)
Explore P78417 
Go to UniProtKB:  P78417
PHAROS:  P78417
GTEx:  ENSG00000148834 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP78417
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.33 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.176 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.226α = 90
b = 57.226β = 90
c = 140.051γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Mahidol UniversityThailand--

Revision History  (Full details and data files)

  • Version 1.0: 2018-11-28
    Type: Initial release
  • Version 1.1: 2019-08-07
    Changes: Data collection, Database references
  • Version 1.2: 2023-11-22
    Changes: Data collection, Database references, Refinement description