2V0G

LEUCYL-TRNA SYNTHETASE FROM THERMUS THERMOPHILUS COMPLEXED WITH A tRNA(leu) transcript with 5-FLUORO-1,3-DIHYDRO-1-HYDROXY-2,1- BENZOXABOROLE (AN2690) forming an adduct to the ribose of adenosine- 76 in the enzyme editing site.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.245 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

An Antifungal Agent Inhibits an Aminoacyl-tRNA Synthetase by Trapping tRNA in the Editing Site.

Rock, F.Mao, W.Yaremchuk, A.Tukalo, M.Crepin, T.Zhou, H.Zhang, Y.Hernandez, V.Akama, T.Baker, S.Plattner, J.Shapiro, L.Martinis, S.A.Benkovic, S.J.Cusack, S.Alley, M.R.K.

(2007) Science 316: 1759

  • DOI: 10.1126/science.1142189
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Aminoacyl-transfer RNA (tRNA) synthetases, which catalyze the attachment of the correct amino acid to its corresponding tRNA during translation of the genetic code, are proven antimicrobial drug targets. We show that the broad-spectrum antifungal 5-f ...

    Aminoacyl-transfer RNA (tRNA) synthetases, which catalyze the attachment of the correct amino acid to its corresponding tRNA during translation of the genetic code, are proven antimicrobial drug targets. We show that the broad-spectrum antifungal 5-fluoro-1,3-dihydro-1-hydroxy-2,1-benzoxaborole (AN2690), in development for the treatment of onychomycosis, inhibits yeast cytoplasmic leucyl-tRNA synthetase by formation of a stable tRNA(Leu)-AN2690 adduct in the editing site of the enzyme. Adduct formation is mediated through the boron atom of AN2690 and the 2'- and 3'-oxygen atoms of tRNA's3'-terminal adenosine. The trapping of enzyme-bound tRNA(Leu) in the editing site prevents catalytic turnover, thus inhibiting synthesis of leucyl-tRNA(Leu) and consequentially blocking protein synthesis. This result establishes the editing site as a bona fide target for aminoacyl-tRNA synthetase inhibitors.


    Organizational Affiliation

    Anacor Pharmaceuticals, Incorporated, 1060 East Meadow Circle, Palo Alto, CA 94303, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
AMINOACYL-TRNA SYNTHETASE
A, D
878Thermus thermophilusMutation(s): 0 
Gene Names: leuS
EC: 6.1.1.4
Find proteins for Q7SIE4 (Thermus thermophilus)
Go to UniProtKB:  Q7SIE4
Entity ID: 2
MoleculeChainsLengthOrganism
TRNALEUB,F83Thermus thermophilus
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, D
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
LEU
Query on LEU

Download SDF File 
Download CCD File 
A, D
LEUCINE
C6 H13 N O2
ROHFNLRQFUQHCH-YFKPBYRVSA-N
 Ligand Interaction
HG
Query on HG

Download SDF File 
Download CCD File 
A, D
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
ANZ
Query on ANZ
B, F
NON-POLYMERC17 H17 B F N5 O8 P

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.245 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 202.050α = 90.00
b = 125.800β = 118.71
c = 173.200γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-07-03
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance