2nuf Summary

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Crystal structure of RNase III from Aquifex aeolicus complexed with ds-RNA at 2.5-Angstrom Resolution

The structure was published by Gan, J., Shaw, G., Tropea, J.E., Waugh, D.S., Court, D.L., and Ji, X., in 2007 in a paper entitled "A stepwise model for double-stranded RNA processing by ribonuclease III." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.5 Å and deposited in 2006.

The experimental data on which the structure is based was also deposited.

This PDB entry contains a complex of 2 biomacromolecules, namely 28-MER and Ribonuclease III.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule most likely forms heterotetramers.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A Ribonuclease III O67082 (1-221) (RNC_AQUAE)search Aquifex aeolicus VF5search 100% 221 99%
B Ribonuclease III O67082 (1-221) (RNC_AQUAE)search Aquifex aeolicus VF5search 100% 221 99%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
O67082 (1 - 221) Ribonuclease III Aquifex aeolicus

Chain Structural classification (SCOP) Sequence family (Pfam)
A, B (O67082) RNase III catalytic domain-likesearch, Double-stranded RNA-binding domain (dsRBD)search PF00035: Double-stranded RNA binding motifsearch, PF00636: Ribonuclease III domainsearch

Chain ID Molecular function (GO) Biological process (GO) Cellular component (GO)
A, B (O67082) ribonuclease III activitysearch RNA bindingsearch hydrolase activitysearch metal ion bindingsearch endonuclease activitysearch nuclease activitysearch RNA processingsearch rRNA catabolic processsearch RNA phosphodiester bond hydrolysissearch mRNA processingsearch RNA phosphodiester bond hydrolysis, endonucleolyticsearch tRNA processingsearch nucleic acid phosphodiester bond hydrolysissearch rRNA processingsearch cytoplasmsearch

Chain InterPro annotation
A, B Ribonuclease III domainsearch Ribonuclease IIIsearch Double-stranded RNA-binding domainsearch