Helix-Junction-Helix Motifs as Building Blocks of RNA Tertiary Structure

This project is dedicated to achieving this level of understanding for a ubiquitous building block element of RNA tertiary structure: the helix-junction-helix (HJH) motif. Our studies are made possible by recent breakthroughs in experimental techniques for dissecting RNA structure ensembles. This study will mark the beginning of an effort aimed at comprehensively characterizing the entire HJH ‘periodic table’.

Goal: 

Our aim is to resolve the conformational ensembles of helix-junction-helix (HJH) RNA motifs and higher order HJH assembly, and to understand their dependence on solution condition and potentially sequence.

Publications

An RNA tertiary switch by modifying how helices are tethered

Laura Ganser, Anthony Mustoe, Hashim Al Hashimi
Genome Biology 15:425

DOI: 

10.1186/s13059-014-0425-z

Structural dynamics of a single-stranded RNA-helix junction using NMR

Catherine D. Eichhorn, Hashim Al Hashimi
RNA. 2014 Jun;20(6):782-91

DOI: 

10.1261/rna.043711.113

Hierarchy of RNA Functional Dynamics

Anthony Mustoe, Charles L Brooks 3rd, Hashim Al Hashimi
Ann Rev Biochem Vol. 83: 441-466 2014

DOI: 

10.1146/annurev-biochem-060713-035524

Pages