The structure of the flock house virus B2 protein, a viral suppressor of RNA interference, shows a novel mode of double-stranded RNA recognition.
Lingel, A., Simon, B., Izaurralde, E., Sattler, M.(2005) EMBO Rep 6: 1149-1155
- PubMed: 16270100
- DOI: https://doi.org/10.1038/sj.embor.7400583
- Primary Citation of Related Structures:
2B9Z - PubMed Abstract:
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.
Organizational Affiliation:
European Molecular Biology Laboratory, Meyerhofstrasse 1, 69117 Heidelberg, Germany.