4DS6 image
Entry Detail
PDB ID:
4DS6
Keywords:
RNA
Title:
Crystal structure of a group II intron in the pre-catalytic state
Biological Source:
Source Organism:
Oceanobacillus iheyensis
PDB Version:
Deposition Date:
2012-02-17
Release Date:
2012-04-18
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
3.64 Å
R-Value Free:
0.24
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
P 21 21 21
4DS6 validation report
Macromolecular Entities
Polymer Type:polyribonucleotide
Description:Mutant Group IIC Intron
Mutations:G359A
Chain IDs:A
Chain Length:422
Number of Molecules:1
Biological Source:Oceanobacillus iheyensis
Ligand Molecules
MG
Primary Citation
Crystal structure of a group II intron in the pre-catalytic state.
Nat.Struct.Mol.Biol. 19 555 557 (2012)
PMID: 22484319 DOI: 10.1038/nsmb.2270

Abstact

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.

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Primary Citation of related structures
4DS6