The PathHunter Bioassay ED Detection Kit, is used to confirm expression of ProLink-tagged proteins as well as ProLabel-tagged proteins. ProLink (PK or ED) is a component of DiscoveRx’s β-gal complementation technology and is used to engineer all PathHunter protein-protein interaction cell lines. ProLabel (PL or ED) is a component of DiscoveRx’s β-gal complementation technology and is used to engineer all PathHunter Pathway cell lines. The kit has been validated for use in both 96- well and 384-well microplate formats. This kit is a companion product for DiscoveRx’s PathHunter Bioassay Product Line.