1TIF

TRANSLATION INITIATION FACTOR 3 N-TERMINAL DOMAIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

X-ray crystallography shows that translational initiation factor IF3 consists of two compact alpha/beta domains linked by an alpha-helix.

Biou, V.Shu, F.Ramakrishnan, V.

(1995) EMBO J 14: 4056-4064

  • Primary Citation of Related Structures:  
    1TIG, 1TIF

  • PubMed Abstract: 
  • The structures of the two domains of translational initiation factor IF3 from Bacillus stearothermophilus have been solved by X-ray crystallography using single wavelength anomalous scattering and multiwavelength anomalous diffraction. Each of the tw ...

    The structures of the two domains of translational initiation factor IF3 from Bacillus stearothermophilus have been solved by X-ray crystallography using single wavelength anomalous scattering and multiwavelength anomalous diffraction. Each of the two domains has an alpha/beta topology, with an exposed beta-sheet that is reminiscent of several ribosomal and other RNA binding proteins. An alpha-helix that protrudes out from the body of the N-terminal domain towards the C-terminal domain suggests that IF3 consists of two RNA binding domains connected by an alpha-helix and that it may bridge two regions of the ribosome. This represents the first high resolution structural information on a translational initiation factor.


    Related Citations: 
    • Prokaryotic Translation Initiation Factor If3 is an Elongated Protein Consisting of Two Crystallizable Domains
      Kycia, J.H., Biou, V., Shu, F., Gerchman, S.E., Graziano, V., Ramakrishnan, V.
      (1995) Biochemistry 34: 6183

    Organizational Affiliation

    Biology Department, Brookhaven National Laboratory, Upton, NY 11973, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TRANSLATION INITIATION FACTOR 3A78Geobacillus stearothermophilusMutation(s): 0 
Gene Names: T7infC
Find proteins for P03000 (Geobacillus stearothermophilus)
Explore P03000 
Go to UniProtKB:  P03000
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PBM
Query on PBM

Download CCD File 
A
TRIMETHYL LEAD ION
C3 H9 Pb
SNBFOEGVGALPSE-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.192 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 27.6α = 90
b = 39.2β = 90
c = 65.9γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
MOSFLMdata reduction
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1995-12-07
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance