Biomaterial Database

Quantitative analysis of protein-RNA interactions by gel mobility shift. 2008

Sean P Ryder, and Michael I Recht, and James R Williamson

Department of Biochemistry and Molecular Pharmacology, UMass Medical School, Worcester, Massachusetts, USA.

The gel mobility shift assay is routinely used to visualize protein-RNA interactions. Its power resides in the ability to resolve free from bound RNA with high resolution in a gel matrix. We review the quantitative application of this approach to elucidate thermodynamic properties of protein-RNA complexes. Assay designs for titration, competition, and stoichiometry experiments are presented for two unrelated model complexes.

UI	MeSH Term	Description	Entries
D011485	Protein Binding	The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments.	Plasma Protein Binding Capacity,Binding, Protein
D011506	Proteins	Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein.	Gene Products, Protein,Gene Proteins,Protein,Protein Gene Products,Proteins, Gene
D012313	RNA	A polynucleotide consisting essentially of chains with a repeating backbone of phosphate and ribose units to which nitrogenous bases are attached. RNA is unique among biological macromolecules in that it can encode genetic information, serve as an abundant structural component of cells, and also possesses catalytic activity. (Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed)	RNA, Non-Polyadenylated,Ribonucleic Acid,Gene Products, RNA,Non-Polyadenylated RNA,Acid, Ribonucleic,Non Polyadenylated RNA,RNA Gene Products,RNA, Non Polyadenylated
D024202	Electrophoretic Mobility Shift Assay	An electrophoretic technique for assaying the binding of one compound to another. Typically one compound is labeled to follow its mobility during electrophoresis. If the labeled compound is bound by the other compound, then the mobility of the labeled compound through the electrophoretic medium will be retarded.	Gelshift Analysis,Mobility Shift Assay,Band Shift Mobility Assay,Bandshift Mobility Assay,EMSA Electrophoretic Technique,Gel Retardation Assay,Gel Shift Analysis,Supershift Mobility Assay,Analyses, Gel Shift,Analysis, Gel Shift,Assay, Bandshift Mobility,Assay, Gel Retardation,Assay, Mobility Shift,Assay, Supershift Mobility,Assays, Bandshift Mobility,Assays, Gel Retardation,Assays, Mobility Shift,Assays, Supershift Mobility,Bandshift Mobility Assays,EMSA Electrophoretic Techniques,Electrophoretic Technique, EMSA,Electrophoretic Techniques, EMSA,Gel Retardation Assays,Gel Shift Analyses,Mobility Assay, Bandshift,Mobility Assay, Supershift,Mobility Assays, Bandshift,Mobility Assays, Supershift,Mobility Shift Assays,Supershift Mobility Assays,Technique, EMSA Electrophoretic,Techniques, EMSA Electrophoretic