Crystal structure of a glutathione-S-transferase from Antarctic clam Laternula elliptica in a complex with glutathione

Experimental Data Snapshot

  • Resolution: 2.20 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.181 

Starting Model: experimental
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The structure of a shellfish specific GST class glutathione S-transferase from antarctic bivalve Laternula elliptica reveals novel active site architecture.

Park, A.K.Moon, J.H.Jang, E.H.Park, H.Ahn, I.Y.Lee, K.S.Chi, Y.M.

(2013) Proteins 81: 531-537

  • DOI: https://doi.org/10.1002/prot.24208
  • Primary Citation of Related Structures:  
    3QAV, 3QAW

  • PubMed Abstract: 

    Glutathione-S-transferases have been identified in all the living species examined so far, yet little is known about their function in marine organisms. In a previous report, the recently identified GST from Antarctic bivalve Laternula elliptica (LeGST) was classified into the rho class GST, but there are several unique features of LeGST that may justify reclassification, which could represent specific shellfish GSTs. Here, we determined the crystal structure of LeGST, which is a shellfish specific class of GST. The structural analysis showed that the relatively open and wide hydrophobic H-site of the LeGST allows this GST to accommodate various substrates. These results suggest that the H-site of LeGST may be the result of adaptation to their environments as sedentary organisms.

  • Organizational Affiliation

    Division of Biotechnology, College of Life Sciences, Korea University, Seoul 136-713, Republic of Korea.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Rho-class glutathione S-transferase243Laternula ellipticaMutation(s): 0 
Find proteins for B9VX79 (Laternula elliptica)
Explore B9VX79 
Go to UniProtKB:  B9VX79
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB9VX79
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on GSH

Download Ideal Coordinates CCD File 
C10 H17 N3 O6 S
Experimental Data & Validation

Experimental Data

  • Resolution: 2.20 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.181 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.393α = 90
b = 57.611β = 123.84
c = 55.449γ = 90
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
HKL-2000data collection
DENZOdata reduction
SCALEPACKdata scaling
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-02-01
    Type: Initial release
  • Version 1.1: 2013-02-13
    Changes: Database references
  • Version 1.2: 2017-11-08
    Changes: Refinement description
  • Version 1.3: 2023-11-01
    Changes: Data collection, Database references, Derived calculations, Refinement description