Riechers, A. and Schmidt, J. and König, Burkhard and Bosserhoff, A. K. (2009) Heterogeneous transition metal-based fluorescence polarization (HTFP) assay for probing protein interactions. BioTechniques 47 (4), pp. 837-844.
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Other URL: http://www.biotechniques.com/BiotechniquesJournal/2009/October/Heterogeneous-transition-metalbased-fluorescence-polarization-HTFP-assay-for-probing-protein-interactions/biotechniques-176955.html
Analyses of protein interactions are fundamental for the investigation of molecular mechanisms responsible for cellular
processes and diseases, as well as for drug discovery in the pharmaceutical industry. The present study details the development of a fluorescence polarization assay using melanoma inhibitory activity (MIA) protein–binding compounds and studies of the binding properties of this protein. Since they are dependent on the the lifetime of the fluorescent label, currently available fluorescence polarization assays can only determine interactions with either high– or low–molecular weight interaction partners. Our new approach eliminates this limitation by immobilizing a known binding partner of MIA protein to a well plate and by labeling the target protein using luminescent transition metal labels such as Ru(bpy)3 for binding studies with both high– and low–molecular weight interaction partners. Due to the use of a functionalized surface, we termed our concept heterogeneous transition metal–based fluorescence
polarization (HTFP) assay. The assay’s independence from the molecular weight of potential binding partners should make the technique amenable to investigations on subjects as diverse as multimerization, interactions with pharmacophores, or binding affinity determination.
|Institutions:|| Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König|
Medicine > Lehrstuhl für Pathologie
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Created at the University of Regensburg:||Yes|
|Deposited On:||22 Mar 2010 08:03|
|Last Modified:||02 Nov 2011 09:55|