Download MendeleyRoquin Binding to Target Mrnas Involves a Winged Helix-Turn- Helix Motif.
Schuetz, A., Murakawa, Y., Rosenbaum, E., Landthaler, M., Heinemann, U.(2014) Nat Commun 5: 5701
- PubMed: 25504471
- DOI: https://doi.org/10.1038/ncomms6701
- Primary Citation of Related Structures:
4ULW - PubMed Abstract:
Roquin proteins mediate mRNA deadenylation by recognizing a conserved class of stem-loop RNA degradation motifs via their Roquin domain. Here we present the crystal structure of a Roquin domain, revealing a mostly helical protein fold bearing a winged helix-turn-helix motif. By combining structural, biochemical and mutation analyses, we gain insight into the mode of RNA binding. We show that the winged helix-turn-helix motif is involved in the binding of constitutive decay elements-containing stem-loop mRNAs. Moreover, we provide biochemical evidence that Roquin proteins are additionally able to bind to duplex RNA and have the potential to be functional in different oligomeric states.
Organizational Affiliation:
Helmholtz Protein Sample Production Facility, Max Delbrück Center for Molecular Medicine, 13092 Berlin, Germany.
