Figure 1From: Receptorphin: A conserved peptide derived from the sequence of the opioid receptor, with opioid displacement activity and potent antiproliferative actions in tumor cellsDisplacement of different opioid ligands by receptorphin, in T47D cells and rat brain membranes. Upper panels: Rat brain membranes. Lower panels: T47D cells See text for conditions of binding. Mean ± SEM of three experiments in duplicate.Back to article page