Andreas Langer, Tanja Bartoschik, Ondrej Cehlar, Stefan Duhr, Philipp Baaske, Werner Streicher
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引用次数: 5
Abstract
There are many fluorescence-based applications that can be used to characterize molecular interactions. However, available methods often depend on site-specific labeling techniques or binding-induced changes in conformation or size of the probed target molecule. To overcome these limitations, we applied a ratiometric dual-emission approach that quantifies ligand-induced spectral shifts with sub-nanometer sensitivity. The use of environment-sensitive near-infrared dyes with the method we describe enables affinity measurements and thermodynamic characterization without the explicit need for site-specific labeling or ligand-induced conformational changes. We demonstrate that in-solution spectral shift measurements enable precise characterization of molecular interactions for a variety of biomolecules, including proteins, antibodies, and nucleic acids. Thereby, the described method is not limited to a subset of molecules since even the most challenging samples of research and drug discovery projects like membrane proteins and intrinsically disordered proteins can be analyzed.
期刊介绍:
ASSAY and Drug Development Technologies provides access to novel techniques and robust tools that enable critical advances in early-stage screening. This research published in the Journal leads to important therapeutics and platforms for drug discovery and development. This reputable peer-reviewed journal features original papers application-oriented technology reviews, topical issues on novel and burgeoning areas of research, and reports in methodology and technology application.
ASSAY and Drug Development Technologies coverage includes:
-Assay design, target development, and high-throughput technologies-
Hit to Lead optimization and medicinal chemistry through preclinical candidate selection-
Lab automation, sample management, bioinformatics, data mining, virtual screening, and data analysis-
Approaches to assays configured for gene families, inherited, and infectious diseases-
Assays and strategies for adapting model organisms to drug discovery-
The use of stem cells as models of disease-
Translation of phenotypic outputs to target identification-
Exploration and mechanistic studies of the technical basis for assay and screening artifacts