In the past year, we have made progress in our understanding of the mechanism of action of classes of regulatory RNAs that respond to amino acid starvation and to the bacterial cell wall precursor GlcN6P. Work on the T-box, which derives from the paper our laboratory published in 2013 continues with analysis of two important aspects of the function of this genetic regulator: as a molecular ruler, that identifies its ligand (tRNA) based on linear dimensions, and on its ability to recognize a unique feature of tRNA, namely the elbow. Work also continues on analysis and engineering of the function of the glmS ribozyme-riboswitch, which controls cell wall biosynthesis in Gram-positive bacteria, including many pathogens. We also have made advances in methodology for the analysis of biological RNAs.

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U.S. National Heart Lung and Blood Inst
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Chen, Michael C; Tippana, Ramreddy; Demeshkina, Natalia A et al. (2018) Structural basis of G-quadruplex unfolding by the DEAH/RHA helicase DHX36. Nature 558:465-469
Lau, Matthew W L; Trachman 3rd, Robert J; Ferré-D'Amaré, Adrian R (2017) A divalent cation-dependent variant of the glmS ribozyme with stringent Ca(2+) selectivity co-opts a preexisting nonspecific metal ion-binding site. RNA 23:355-364
Miao, Zhichao; Adamiak, Ryszard W; Antczak, Maciej et al. (2017) RNA-Puzzles Round III: 3D RNA structure prediction of five riboswitches and one ribozyme. RNA 23:655-672
Zhang, Jinwei; Ferré-DAmaré, Adrian R (2016) Trying on tRNA for Size: RNase P and the T-box Riboswitch as Molecular Rulers. Biomolecules 6:
Zhang, Jinwei; Ferré-D'Amaré, Adrian R (2016) The tRNA Elbow in Structure, Recognition and Evolution. Life (Basel) 6:
Lau, Matthew W L; Ferré-D'Amaré, Adrian R (2016) In vitro evolution of coenzyme-independent variants from the glmS ribozyme structural scaffold. Methods 106:76-81
Meyer, Peter A; Socias, Stephanie; Key, Jason et al. (2016) Data publication with the structural biology data grid supports live analysis. Nat Commun 7:10882
Miao, Zhichao; Adamiak, Ryszard W; Blanchet, Marc-Frédérick et al. (2015) RNA-Puzzles Round II: assessment of RNA structure prediction programs applied to three large RNA structures. RNA 21:1066-84
Zhang, Jinwei; Ferré-D'Amaré, Adrian R (2015) Structure and mechanism of the T-box riboswitches. Wiley Interdiscip Rev RNA 6:419-33
Ferré-D'Amaré, Adrian R (2015) On the shoulders of giants. RNA 21:504-5

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