3TEG

Bacterial and Eukaryotic Phenylalanyl-tRNA Synthetases Catalyze Misaminoacylation of tRNAPhe with 3,4-Dihydroxy-L-Phenylalanine (L-Dopa)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2044 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Bacterial and Eukaryotic Phenylalanyl-tRNA Synthetases Catalyze Misaminoacylation of tRNA(Phe) with 3,4-Dihydroxy-L-Phenylalanine.

Moor, N.Klipcan, L.Safro, M.G.

(2011) Chem.Biol. 18: 1221-1229

  • DOI: 10.1016/j.chembiol.2011.08.008
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Aminoacyl-tRNA synthetases exert control over the accuracy of translation by selective pairing the correct amino acids with their cognate tRNAs, and proofreading the misacylated products. Here we show that three existing, structurally different pheny ...

    Aminoacyl-tRNA synthetases exert control over the accuracy of translation by selective pairing the correct amino acids with their cognate tRNAs, and proofreading the misacylated products. Here we show that three existing, structurally different phenylalanyl-tRNA synthetases-human mitochondrial (HsmtPheRS), human cytoplasmic (HsctPheRS), and eubacterial from Thermus thermophilus (TtPheRS), catalyze mischarging of tRNA(Phe) with an oxidized analog of tyrosine-L-dopa. The lowest level of L-dopa discrimination over the cognate amino acid, exhibited by HsmtPheRS, is comparable to that of tyrosyl-tRNA synthetase. HsmtPheRS and TtPheRS complexes with L-dopa revealed in the active sites an electron density shaping this ligand. HsctPheRS and TtPheRS possessing editing activity are capable of hydrolyzing the exogenous L-dopa-tRNA(Phe) as efficiently as Tyr-tRNA(Phe). However, editing activity of PheRS does not guarantee reduction of the aminoacylation error rate to escape misincorporation of L-dopa into polypeptide chains.


    Organizational Affiliation

    Institute of Chemical Biology and Fundamental Medicine, 630090 Novosibirsk, Russia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Phenylalanyl-tRNA synthetase, mitochondrial
A
415Homo sapiensMutation(s): 0 
Gene Names: FARS2 (FARS1)
EC: 6.1.1.20
Find proteins for O95363 (Homo sapiens)
Go to Gene View: FARS2
Go to UniProtKB:  O95363
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DAH
Query on DAH

Download SDF File 
Download CCD File 
A
3,4-DIHYDROXYPHENYLALANINE
L-DOPA
C9 H11 N O4
WTDRDQBEARUVNC-LURJTMIESA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2044 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.169 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 55.185α = 90.00
b = 90.587β = 90.00
c = 96.076γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHENIXphasing
HKL-2000data collection
HKL-2000data reduction
PHENIXrefinement
PHENIXmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-11-23
    Type: Initial release