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 

wwPDB Validation   3D Report Full Report


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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: 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) ...

    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. Electronic address: bskang2@knu.ac.kr.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BIFUNCTIONAL GLUTAMATE/PROLINE--TRNA LIGASEA175Homo sapiensMutation(s): 3 
Gene Names: EPRS1EPRSGLNSPARSQARSQPRSPIG32
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
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
AMINOACYL TRNA SYNTHASE COMPLEX-INTERACTING MULTIFUNCTIONAL PROTEIN 2B240Homo sapiensMutation(s): 1 
Gene Names: AIMP2JTV1PRO0992
UniProt & NIH Common Fund Data Resources
Find proteins for Q13155 (Homo sapiens)
Explore Q13155 
Go to UniProtKB:  Q13155
PHAROS:  Q13155
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download Ideal Coordinates CCD File 
C [auth B], D [auth B]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
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