1PYS

PHENYLALANYL-TRNA SYNTHETASE FROM THERMUS THERMOPHILUS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.177 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of phenylalanyl-tRNA synthetase from Thermus thermophilus.

Mosyak, L.Reshetnikova, L.Goldgur, Y.Delarue, M.Safro, M.G.

(1995) Nat.Struct.Mol.Biol. 2: 537-547


  • PubMed Abstract: 
  • The crystal structure of phenylalanyl-tRNA synthetase from Thermus thermophilus, solved at 2.9 A resolution, displays (alpha beta)2 subunit organization. Unexpectedly, both the catalytic alpha- and the non-catalytic beta-subunits comprise the charact ...

    The crystal structure of phenylalanyl-tRNA synthetase from Thermus thermophilus, solved at 2.9 A resolution, displays (alpha beta)2 subunit organization. Unexpectedly, both the catalytic alpha- and the non-catalytic beta-subunits comprise the characteristic fold of the class II active-site domains. The alpha beta heterodimer contains most of the building blocks so far identified in the class II synthetases. The presence of an RNA-binding domain, similar to that of the U1A spliceosomal protein, in the beta-subunit is indicative of structural relationships among different families of RNA-binding proteins. The structure suggests a plausible catalytic mechanism which explains why the primary site of tRNA aminoacylation is different from that of the other class II enzymes.


    Organizational Affiliation

    Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PHENYLALANYL-TRNA SYNTHETASE
A
350Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Mutation(s): 0 
Gene Names: pheS
EC: 6.1.1.20
Find proteins for Q5SGX2 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SGX2
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PHENYLALANYL-TRNA SYNTHETASE
B
785Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Mutation(s): 0 
Gene Names: pheT
EC: 6.1.1.20
Find proteins for Q5SGX1 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SGX1
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.177 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 176.000α = 90.00
b = 176.000β = 90.00
c = 141.700γ = 120.00
Software Package:
Software NamePurpose
X-PLORphasing
DENZOdata reduction
X-PLORmodel building
SCALEPACKdata scaling
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-11-19
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Source and taxonomy, Version format compliance