Analysis of the HIV-1 Genomic RNA Dimerization Initiation Site Binding to Aminoglycoside Antibiotics Using Isothermal Titration Calorimetry.

Fiche publication

Date publication

janvier 2020

Journal

Methods in molecular biology (Clifton, N.J.)

Auteurs

Membres identifiés du Cancéropôle Est :
Dr ENNIFAR Eric

Tous les auteurs :
Bernacchi S, Ennifar E

Lien Pubmed

https://www.ncbi.nlm.nih.gov/pubmed/32006318

Résumé

Isothermal titration calorimetry (ITC) provides a sensitive, powerful, and accurate tool to suitably analyze the thermodynamic of RNA binding events. This approach does not require any modification or labeling of the system under analysis and is performed in solution. ITC is a very convenient technique that provides an accurate determination of binding parameters, as well as a complete thermodynamic profile of the molecular interactions. Here we show how this approach can be used to characterize the interactions between the dimerization initiation site (DIS) RNA localized within the HIV-1 viral genome and aminoglycoside antibiotics. Our ITC study showed that the 4,5-disubstituted 2-desoxystreptamine (2-DOS) aminoglycosides can bind the DIS with a nanomolar affinity and a high specificity.