Scintillation Proximity Assay

Scintillation Proximity Assay (SPA) is a biochemical method used to measure protein-protein, protein-DNA, and other molecular interactions in vitro. This assay uses scintillant-coated beads to measure the binding of proteins or nucleic acids. When an analyte binds to the bead, the scintillant will emit light which can then be measured using a scintillation counter. SPA provides a fast and cost-effective way to quantify protein-protein, protein-nucleic acid, and other interactions with high throughput and sensitivity. It is widely used in biotechnology and pharmacology research to study protein-protein interactions such as those involved in signal transduction pathways. It can also be used to quantify biomarkers for disease diagnosis and drug development. The flexibility and affordability of the assay makes it a powerful tool for scientists to gain insight into molecular interactions.


From: International Journal of Cell

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