4M2Z image
Deposition Date 2013-08-05
Release Date 2013-12-11
Last Version Date 2024-07-03
Entry Detail
PDB ID:
4M2Z
Keywords:
HYDROLASE/RNA
Title:
Crystal structure of RNASE III complexed with double-stranded RNA and CMP (TYPE II CLEAVAGE)
Biological Source:
Source Organism:
Aquifex aeolicus (Taxon ID: 224324)
synthetic construct (Taxon ID: 32630)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.85 Å
R-Value Free:
0.28
R-Value Work:
0.22
R-Value Observed:
0.22
Space Group:
P 32 2 1
4M2Z validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribonuclease 3
Gene (Uniprot):rnc
Chain IDs:A, B
Chain Length:221
Number of Molecules:2
Biological Source:Aquifex aeolicus
UniProt ID:O67082 Pfam ID:PF00636, PF00035 EC:3.1.26.3
Polymer Type:polyribonucleotide
Molecule:RNA10
Chain IDs:C, D
Chain Length:27
Number of Molecules:2
Biological Source:synthetic construct
Ligand Molecules
C5P
MG
Primary Citation
RNase III: Genetics and Function; Structure and Mechanism.
Annu. Rev. Genet. 47 405 431 (2013)
PMID: 24274754 DOI: 10.1146/annurev-genet-110711-155618

Abstact

RNase III is a global regulator of gene expression in Escherichia coli that is instrumental in the maturation of ribosomal and other structural RNAs. We examine here how RNase III itself is regulated in response to growth and other environmental changes encountered by the cell and how, by binding or processing double-stranded RNA (dsRNA) intermediates, RNase III controls the expression of genes. Recent insight into the mechanism of dsRNA binding and processing, gained from structural studies of RNase III, is reviewed. Structural studies also reveal new cleavage sites in the enzyme that can generate longer 3' overhangs.

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Disease

Primary Citation of related structures
2NUG
4M30