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Updated: May 8, 2026

Investigating Protein-protein Interactions in Live Cells Using Bioluminescence Resonance Energy Transfer
Published on: May 26, 2014
Analysis of protein-protein interactions using LUMIER assays
1Genomics and Proteomics Core Facility, German Cancer Research Center, Heidelberg, Germany.
Abstract:
Co-affinity purification methods can test whether two proteins physically engage in a complex. The assay principle is to enrich cellular extracts for a first protein by a purification step, and then test if a second protein is enriched as well. This principle has been optimized for use at high-throughput in LUMIER (luminescence-based mammalian interactome mapping) assays, which use luciferase-tags for the detection of the second proteins. This protocol is ideal for miniaturization of the assay on microtiter plates and supports a throughput of several hundred interaction tests per week.
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