2B9Z image
Deposition Date 2005-10-13
Release Date 2005-11-29
Last Version Date 2024-05-22
Entry Detail
PDB ID:
2B9Z
Keywords:
VIRAL PROTEIN
Title:
Solution structure of FHV B2, a viral suppressor of RNAi
Biological Source:
Source Organism:
Flock house virus (Taxon ID: 12287)
Host Organism:
Escherichia coli BL21(DE3)
Method Details:
Experimental Method:
SOLUTION NMR
Conformers Calculated:
100
Conformers Submitted:
10
Selection Criteria:
structures with the lowest energy
2B9Z validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:B2 protein
Gene (Uniprot):B2
Chain IDs:A, B
Chain Length:74
Number of Molecules:2
Biological Source:Flock house virus
UniProt ID:P68831 Pfam ID:PF11473
Ligand Molecules
NA
Primary Citation
The structure of the flock house virus B2 protein, a viral suppressor of RNA interference, shows a novel mode of double-stranded RNA recognition.
Embo Rep. 6 1149 1155 (2005)
PMID: 16270100 DOI: 10.1038/sj.embor.7400583

Abstact

We report the structure of the flock house virus B2 protein, a potent suppressor of RNA interference (RNAi) in animals and plants. The B2 protein is a homodimer in solution and contains three alpha-helices per monomer. Chemical shift perturbation shows that an antiparallel arrangement of helices (alpha2/alpha2') forms an elongated binding interface with double-stranded RNA (dsRNA). This implies a novel mode of dsRNA recognition and provides insights into the mechanism of RNAi suppression by B2.

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Primary Citation of related structures
2B9Z