signaling receptor binding
   |__G protein-coupled receptor binding
       |__neuropeptide receptor binding  12 rec.
           |__apelin receptor binding
           |__beta-endorphin receptor binding
           |__bombesin receptor binding
           |   |__endothelin A receptor binding
           |   |__endothelin B receptor binding
           |   |__gastrin-releasing peptide receptor binding
           |   |__neuromedin B receptor binding
           |   |__subtype 3 bombesin receptor binding
           |__cholecystokinin receptor binding
           |   |__type A cholecystokinin receptor binding
           |   |__type B gastrin/cholecystokinin receptor binding
           |__corazonin receptor binding 1 rec.
           |__corticotropin-releasing hormone receptor binding
           |   |__corticotropin-releasing hormone receptor 1 binding
           |   |__corticotropin-releasing hormone receptor 2 binding
           |__galanin receptor binding
           |   |__type 1 galanin receptor binding
           |   |__type 2 galanin receptor binding
           |   |__type 3 galanin receptor binding
           |__growth hormone-releasing hormone receptor binding
           |__kisspeptin receptor binding
           |__melanin-concentrating hormone receptor binding
           |   |__type 1 melanin-concentrating hormone receptor binding
           |   |__type 2 melanin-concentrating hormone receptor binding
           |__melanocortin receptor binding
           |   |__corticotropin hormone receptor binding
           |   |__type 1 melanocortin receptor binding
           |   |__type 3 melanocortin receptor binding
           |   |__type 4 melanocortin receptor binding
           |   |__type 5 melanocortin receptor binding
           |__neurokinin receptor binding
           |   |__neuromedin K receptor binding
           |   |__substance K receptor binding
           |   |__substance P receptor binding
           |__neuromedin U receptor binding
           |   |__type 1 neuromedin U receptor binding
           |   |__type 2 neuromedin U receptor binding
           |__neuropeptide F receptor binding 1 rec.
           |__neuropeptide Y receptor binding
           |   |__type 1 neuropeptide Y receptor binding
           |   |__type 2 neuropeptide Y receptor binding
           |   |__type 4 neuropeptide Y receptor binding
           |   |__type 5 neuropeptide Y receptor binding
           |__neurotensin receptor binding
           |   |__type 1 neurotensin receptor binding
           |__orexigenic neuropeptide QRFP receptor binding
           |__orexin receptor binding
           |   |__type 1 orexin receptor binding
           |   |__type 2 orexin receptor binding
           |__pituitary adenylate cyclase-activating polypeptide receptor binding
           |__proctolin receptor binding 1 rec.
           |__prolactin-releasing peptide receptor binding
           |__somatostatin receptor binding
           |   |__type 1 somatostatin receptor binding
           |   |__type 2 somatostatin receptor binding
           |   |__type 3 somatostatin receptor binding
           |   |__type 4 somatostatin receptor binding
           |   |__type 5 somatostatin receptor binding
           |__tachykinin receptor binding
           |__vasoactive intestinal polypeptide receptor binding
               |__type 1 vasoactive intestinal polypeptide receptor binding
               |__type 2 vasoactive intestinal polypeptide receptor binding