neurotransmitter receptor activity | peptide binding | transmembrane signaling receptor activity | neuropeptide binding | beta-endorphin receptor activity | G-protein coupled receptor activity | neuropeptide receptor activity | morphine receptor activity | amide binding | signaling receptor activity | opioid receptor activity | protein binding | G-protein beta-subunit binding | enkephalin receptor activity | peptide receptor activity | G-protein coupled peptide receptor activity | melanocortin receptor activity | G-protein alpha-subunit binding
response to isoquinoline alkaloid | response to drug | cellular process | neuropeptide signaling pathway | response to morphine | beta-endorphin receptor activity | regulation of cellular process | cellular response to organonitrogen compound | G-protein coupled receptor activity | response to stimulus | cellular response to xenobiotic stimulus | neuropeptide receptor activity | cellular response to organic cyclic compound | G-protein coupled receptor signaling pathway | response to nitrogen compound | morphine receptor activity | cellular response to ammonium ion | opioid receptor signaling pathway | response to ammonium ion | cellular response to alkaloid | response to xenobiotic stimulus | cellular response to drug | cell communication | opioid receptor activity | response to organic substance | cellular response to isoquinoline alkaloid | enkephalin receptor activity | response to alkaloid | signaling | G-protein coupled peptide receptor activity | response to organic cyclic compound | melanocortin receptor activity | response to organonitrogen compound | response to anesthetic | cellular response to morphine | cellular response to organic substance | signal transduction
integral component of membrane | cell | intrinsic component of membrane | plasma membrane | integral component of plasma membrane | cell periphery | membrane | intrinsic component of plasma membrane