Duolink® Proximity Ligation Assay
 

 
Duolink® Proximity Ligation Assays (PLA) enable the studying of endogenous Protein-Protein Interactions (PPI) and Post-Translational Modifications, providing a fluorescent signal for a single event that can be visualized by either microscopy or flow cytometry. To study Protein-Protein Interactions, Duolink® PLA technology uses a pair of antibodies labeled with oligonucleotides which when present within 40 nm undertake rolling circle amplification to generate a specific fluorescent signal after the addition of labeled probes.

Available in four different colors, for both flow cytometry and microscopy, Duolink® PLA allows for the visualization of multiple Protein-Protein Interactions per cell. Uncover the opportunities in your research with amplified performance and the benefits of Duolink® PLA technology:

• Visualize protein interactions – both stable and transient
• Visualize post-translational modifications
• Detect endogenous proteins – no overexpression or genetic manipulation
• High specificity – use of two antibodies/probes eliminates false positives
• No special equipment needed – standard immunofluorescence and flow cytometry-based methods available