1PYS

PHENYLALANYL-TRNA SYNTHETASE FROM THERMUS THERMOPHILUS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.177 
  • R-Value Observed: 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 Biol 2: 537-547

  • DOI: 10.1038/nsb0795-537
  • Primary Citation of Related Structures:  
    1PYS

  • 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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PHENYLALANYL-TRNA SYNTHETASEA350Thermus thermophilus HB8Mutation(s): 0 
Gene Names: pheSTTHA1958
EC: 6.1.1.20
Find proteins for Q5SGX2 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q5SGX2 
Go to UniProtKB:  Q5SGX2
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PHENYLALANYL-TRNA SYNTHETASEB785Thermus thermophilus HB8Mutation(s): 0 
Gene Names: pheTTTHA1959
EC: 6.1.1.20
Find proteins for Q5SGX1 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Explore Q5SGX1 
Go to UniProtKB:  Q5SGX1
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.177 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 176α = 90
b = 176β = 90
c = 141.7γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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