KEGG Orthology (KO) [BR:ko00001] 09130 Environmental Information Processing 09133 Signaling molecules and interaction 04080 Neuroactive ligand-receptor interaction [PATH:ko04080] K05265 MLN; motilin 09180 Brite Hierarchies 09183 Protein families: signaling and cellular processes 04052 Cytokines and neuropeptides [BR:ko04052] K05265 MLN; motilin Cytokines and neuropeptides [BR:ko04052] Neuropeptides Neuropeptides (GPCR binding) K05265 MLN; motilin