A method to visualize the kappa opioid receptor is described that uses a high-affinity fluorescein-conjugated opioid ligand and indirect immunofluorescence with the phycoerythrin fluorophore to amplif
The antibodies used for this study were kindly donated by Dr R. E. Marc but are now also commercially available through Chemicon and Signature Immunologics. All antibodies are rabbit polyclonal.
