1DJ0

THE CRYSTAL STRUCTURE OF E. COLI PSEUDOURIDINE SYNTHASE I AT 1.5 ANGSTROM RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.162 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The structural basis for tRNA recognition and pseudouridine formation by pseudouridine synthase I.

Foster, P.G.Huang, L.Santi, D.V.Stroud, R.M.

(2000) Nat Struct Biol 7: 23-27

  • DOI: 10.1038/71219
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Pseudouridine synthases catalyze the isomerization of specific uridines to pseudouridine in a variety of RNAs, yet the basis for recognition of the RNA sites or how they catalyze this reaction is unknown. The crystal structure of pseudouridine syntha ...

    Pseudouridine synthases catalyze the isomerization of specific uridines to pseudouridine in a variety of RNAs, yet the basis for recognition of the RNA sites or how they catalyze this reaction is unknown. The crystal structure of pseudouridine synthase I from Escherichia coli, which, for example, modifies positions 38, 39 and/or 40 in tRNA, reveals a dimeric protein that contains two positively charged, RNA-binding clefts along the surface of the protein. Each cleft contains a highly conserved aspartic acid located at its center. The structural domains have a topological similarity to those of other RNA-binding proteins, though the mode of interaction with tRNA appears to be unique. The structure suggests that a dimeric enzyme is required for binding transfer RNA and subsequent pseudouridine formation.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, University of California San Francisco, San Francisco, California 94143-0448, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PSEUDOURIDINE SYNTHASE I
A, B
264Escherichia coliMutation(s): 0 
EC: 4.2.1.70 (PDB Primary Data), 5.4.99.12 (UniProt)
Find proteins for P07649 (Escherichia coli (strain K12))
Go to UniProtKB:  P07649
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download CCD File 
A, B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.162 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 68.08α = 90
b = 37.4β = 97.68
c = 103.48γ = 90
Software Package:
Software NamePurpose
PHASESphasing
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-05-31
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance