5A1N

The crystal structure of the GST-like domains complex of EPRS-AIMP2 mutant S156D


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.196 

Starting Model: other
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This is version 1.2 of the entry. See complete history


Literature

Symmetric Assembly of a Decameric Subcomplex in Human Multi-tRNA Synthetase Complex Via Interactions between Glutathione Transferase-Homology Domains and Aspartyl-tRNA Synthetase.

Cho, H.Y.Lee, H.J.Choi, Y.S.Kim, D.K.Jin, K.S.Kim, S.Kang, B.S.

(2019) J Mol Biol 

  • DOI: https://doi.org/10.1016/j.jmb.2019.08.013
  • Primary Citation of Related Structures:  
    5A1N

  • PubMed Abstract: 

    Aminoacyl-tRNA synthetases (AARSs) ligate amino acids to their cognate tRNAs during protein synthesis. In humans, eight AARSs and three non-enzymatic AARS-interacting multifunctional proteins (AIMP1-3), which are involved in various biological processes, form a multi-tRNA synthetase complex (MSC). Elucidation of the structures and multiple functions of individual AARSs and AIMPs has aided current understanding of the structural arrangement of MSC components and their assembly processes. Here, we report the crystal structure of a complex comprising a motif from aspartyl-tRNA synthetase (DRS) and the glutathione transferase (GST)-homology domains of methionyl-tRNA synthetase (MRS), glutamyl-prolyl-tRNA synthetase (EPRS), AIMP2, and AIMP3. In the crystal structure, the four GST domains are assembled in the order of MRS-AIMP3-EPRS-AIMP2, and the GST domain of AIMP2 binds DRS through the β-sheet in the GST domain. The C-terminus of AIMP3 enhances the binding of DRS to the tetrameric GST complex. A DRS dimer and two GST tetramers binding to the dimer with 2-fold symmetry complete a decameric complex. The formation of this complex enhances the stability of DRS and enables it to retain its reaction intermediate, aspartyl adenylate. Since the catalytic domains of MRS and EPRS are connected to the decameric complex through their flexible linker peptides, and lysyl-tRNA synthetase and AIMP1 are also linked to the complex via the N-terminal region of AIMP2, the DRS-GST tetramer complex functions as a frame in the MSC.


  • Organizational Affiliation

    School of Life Science and Biotechnology, KNU Creative BioResearch Group, Kyungpook National University, Daegu 41566, Republic of Korea.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
BIFUNCTIONAL GLUTAMATE/PROLINE--TRNA LIGASE175Homo sapiensMutation(s): 3 
EC: 6.1.1.15 (PDB Primary Data), 6.1.1.17 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for P07814 (Homo sapiens)
Explore P07814 
Go to UniProtKB:  P07814
PHAROS:  P07814
GTEx:  ENSG00000136628 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP07814
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
AMINOACYL TRNA SYNTHASE COMPLEX-INTERACTING MULTIFUNCTIONAL PROTEIN 2240Homo sapiensMutation(s): 1 
UniProt & NIH Common Fund Data Resources
Find proteins for Q13155 (Homo sapiens)
Explore Q13155 
Go to UniProtKB:  Q13155
PHAROS:  Q13155
GTEx:  ENSG00000106305 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ13155
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.196 
  • Space Group: P 41 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.619α = 90
b = 75.619β = 90
c = 175.819γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-06-01
    Type: Initial release
  • Version 1.1: 2019-09-11
    Changes: Data collection, Database references
  • Version 1.2: 2024-05-01
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description