4DS6

Crystal structure of a group II intron in the pre-catalytic state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.644 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of a group II intron in the pre-catalytic state.

Chan, R.T.Robart, A.R.Rajashankar, K.R.Pyle, A.M.Toor, N.

(2012) Nat.Struct.Mol.Biol. 19: 555-557

  • DOI: 10.1038/nsmb.2270

  • PubMed Abstract: 
  • Group II introns are self-splicing catalytic RNAs that are thought to be ancestral to the spliceosome. Here we report the 3.65-Å crystal structure of the group II intron from Oceanobacillus iheyensis in the pre-catalytic state. The structure reveals ...

    Group II introns are self-splicing catalytic RNAs that are thought to be ancestral to the spliceosome. Here we report the 3.65-Å crystal structure of the group II intron from Oceanobacillus iheyensis in the pre-catalytic state. The structure reveals the conformation of the 5' splice site in the catalytic core and represents the first structure of an intron prior to the first step of splicing.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, University of California, San Diego, San Diego, California, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsLengthOrganism
Mutant Group IIC IntronA422Oceanobacillus iheyensis
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: 3.644 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.205 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 89.880α = 90.00
b = 95.310β = 90.00
c = 226.173γ = 90.00
Software Package:
Software NamePurpose
PHENIXmodel building
HKL-2000data scaling
PHENIXphasing
ADSCdata collection
PHENIXrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-04-18
    Type: Initial release
  • Version 1.1: 2012-04-25
    Type: Database references
  • Version 1.2: 2012-06-20
    Type: Database references