I'm planning an assay based on the quenching / FRET with eGFP as partner. Could somebody point me to a few efficient Quenchers (or a review regarding that matter?).
DPA (Dipicryl amine or hexanitrodiphenylamine) is a very efficient quencher of GFP/YFP. It is a hydrophobic anion that intercalates in the plasma membrane, so, if your constructs are membrane-associated, this is a very good system.