Article
Thermodynamic and kinetic characterization of ligand binding to the purine riboswitch aptamer domain.
Journal of molecular biology - 9 Jun 2006
Gilbert Sunny D, Stoddard Colby D, Wise Sarah J, Batey Robert T
Abstract excerpt
Riboswitches are cis-acting genetic regulatory elements found commonly in bacterial mRNAs that consist of a metabolite-responsive aptamer domain coupled to a regulatory switch. Purine riboswitches respond to intracellular concentrations of either adenine or guanine/hypoxanthine to control gene expression. The aptamer domain of the purine riboswitch contains a pyrimidine residue (Y74) that forms a Watson-Crick...
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