2BTE | pdb_00002bte

Thermus thermophilus Leucyl-tRNA synthetase complexed with a tRNAleu transcript in the post-editing conformation and a post- transfer editing substrate analogue


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 
    0.253 (Depositor), 0.240 (DCC) 
  • R-Value Work: 
    0.217 (Depositor), 0.220 (DCC) 
  • R-Value Observed: 
    0.217 (Depositor) 

Starting Model: experimental
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Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted 2ADClick on this verticalbar to view details

This is version 1.3 of the entry. See complete history


Literature

The Crystal Structure of Leucyl-tRNA Synthetase Complexed with tRNA(Leu) in the Post-Transfer- Editing Conformation.

Tukalo, M.Yaremchuk, A.Fukunaga, R.Yokoyama, S.Cusack, S.

(2005) Nat Struct Mol Biol 12: 923

  • DOI: https://doi.org/10.1038/nsmb986
  • Primary Citation of Related Structures:  
    2BTE, 2BYT

  • PubMed Abstract: 

    Leucyl-tRNA synthetase (LeuRS) has a specific post-transfer editing activity directed against mischarged isoleucine and similar noncognate amino acids. We describe the post-transfer-editing and product complexes of Thermus thermophilus LeuRS (LeuRSTT) with tRNA(Leu) at 2.9- to 3.3-A resolution. In the post-transfer-editing configuration, A76 binds in the editing active site exactly as previously found for the adenosine moiety of a small-molecule editing-substrate analog. The 60 C-terminal residues of LeuRSTT, unseen in previous structures, fold into a compact domain flexibly linked to the rest of the molecule and interacting with the G19-C56 tertiary base pair of tRNA(Leu). LeuRS recognition of tRNA(Leu) depends essentially on tRNA shape rather than base-specific interactions. The structures show that considerable domain rotations, notably of the editing domain, accompany the tRNA-3' end dynamics associated successively with aminoacylation, post-transfer editing and product release.


  • Organizational Affiliation

    European Molecular Biology Laboratory, Grenoble Outstation, c/o Institut Laue-Langevin, 156X, F-38042 Grenoble Cedex 9, France.


Macromolecules

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
AMINOACYL-TRNA SYNTHETASEA,
C [auth D]
878Thermus thermophilusMutation(s): 0 
EC: 6.1.1.4
UniProt
Find proteins for Q7SIE4 (Thermus thermophilus)
Explore Q7SIE4 
Go to UniProtKB:  Q7SIE4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ7SIE4
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
2AD
Query on 2AD

Download Ideal Coordinates CCD File 
OA [auth D],
U [auth A]
2'-AMINO-2'-DEOXYADENOSINE
C10 H14 N6 O3
CQKMBZHLOYVGHW-QYYRPYCUSA-N
HG
Query on HG

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G [auth A],
Y [auth D]
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
LEU
Query on LEU

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MA [auth D],
V [auth A]
LEUCINE
C6 H13 N O2
ROHFNLRQFUQHCH-YFKPBYRVSA-N
NVA
Query on NVA

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NA [auth D],
T [auth A]
NORVALINE
C5 H11 N O2
SNDPXSYFESPGGJ-BYPYZUCNSA-N
SO4
Query on SO4

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AA [auth D]
BA [auth D]
CA [auth D]
DA [auth D]
EA [auth D]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
ZN
Query on ZN

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E [auth A],
F [auth A],
W [auth D],
X [auth D]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free:  0.253 (Depositor), 0.240 (DCC) 
  • R-Value Work:  0.217 (Depositor), 0.220 (DCC) 
  • R-Value Observed: 0.217 (Depositor) 
Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 204.121α = 90
b = 125.705β = 120.86
c = 175.432γ = 90
Software Package:
Software NamePurpose
CNSrefinement
XDSdata reduction
XSCALEdata scaling
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 

Created with Raphaël 2.3.0Worse 01 BetterLigand structure goodness of fit to experimental dataBest fitted 2ADClick on this verticalbar to view details

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-09-15
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2023-12-13
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description