ISDA: 4M30

Deposition Date 2013-08-05

Release Date 2013-12-11

Last Version Date 2024-05-29

Entry Detail

PDB ID:

4M30

Keywords:

HYDROLASE/RNA

Title:

Crystal structure of RNASE III complexed with double-stranded RNA AND AMP (TYPE II CLEAVAGE)

Biological Source:

Source Organism:

Aquifex aeolicus (Taxon ID: 224324)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.50 Å

R-Value Free:

0.26

R-Value Work:

0.19

R-Value Observed:

0.20

Space Group:

P 32 2 1

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Macromolecular Entities

Structures with similar UniProt ID

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:RNA12
Chain IDs:C, D
Chain Length:27
Number of Molecules:2
Biological Source:

Ligand Molecules

AMP

MPD

Primary Citation

RNase III: Genetics and Function; Structure and Mechanism.

Court, D.L, Gan, J, Liang, Y.H, Shaw, G.X, Tropea, J.E, Costantino, N, Waugh, D.S, Ji, X.Show

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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