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.
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
