Annotations: 1R02

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1r02a_	Peptides	Peptide hormones	Peptide hormones	Peptide hormones	Orexin	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Orexin-A	binding molecular function activator activity signaling receptor binding neuropeptide activity signaling receptor activator activity hormone activity protein binding molecular function regulator activity neuropeptide hormone activity signaling receptor regulator activity receptor ligand activity type 2 orexin receptor binding orexin receptor binding G protein-coupled receptor binding binding molecular function activator activity signaling receptor binding neuropeptide activity signaling receptor activator activity hormone activity protein binding molecular function regulator activity neuropeptide hormone activity signaling receptor regulator activity receptor ligand activity type 2 orexin receptor binding orexin receptor binding G protein-coupled receptor binding neuropeptide receptor binding type 1 orexin receptor binding	cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cell communication G protein-coupled receptor signaling pathway cellular process signal transduction neuropeptide signaling pathway negative regulation of potassium ion transport regulation of localization regulation of potassium ion transport cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation cell communication G protein-coupled receptor signaling pathway cellular process signal transduction neuropeptide signaling pathway negative regulation of potassium ion transport regulation of localization regulation of potassium ion transport transport regulation of transport negative regulation of monoatomic ion transport regulation of monoatomic ion transport negative regulation of biological process negative regulation of transport establishment of localization metal ion transport localization monoatomic ion transport potassium ion transport monoatomic cation transport regulation of metal ion transport positive regulation of cytosolic calcium ion concentration regulation of biological quality positive regulation of cell communication multicellular organismal process system process nervous system process regulation of system process positive regulation of biological process positive regulation of transmission of nerve impulse transmission of nerve impulse regulation of nervous system process regulation of transmission of nerve impulse positive regulation of nervous system process positive regulation of multicellular organismal process regulation of cell communication regulation of multicellular organismal process positive regulation of cellular process negative regulation of nervous system process negative regulation of transmission of nerve impulse negative regulation of cell communication negative regulation of cellular process negative regulation of multicellular organismal process behavior eating behavior feeding behavior cellular localization modulation of chemical synaptic transmission synaptic signaling regulation of secretion by cell secretion by cell signal release establishment of localization in cell trans-synaptic signaling regulation of signaling neurotransmitter secretion secretion regulation of neurotransmitter transport export from cell cell-cell signaling neurotransmitter transport regulation of secretion chemical synaptic transmission signal release from synapse regulation of trans-synaptic signaling regulation of neurotransmitter secretion anterograde trans-synaptic signaling sleep regulation of postsynaptic membrane potential chemical synaptic transmission, postsynaptic cell surface receptor signaling pathway excitatory postsynaptic potential regulation of membrane potential homeostatic process adaptive thermogenesis positive regulation of metabolic process multicellular organismal-level homeostasis regulation of cold-induced thermogenesis cold-induced thermogenesis temperature homeostasis positive regulation of cold-induced thermogenesis metabolic process regulation of metabolic process phospholipase C-activating G protein-coupled receptor signaling pathway regulation of calcium ion transport positive regulation of calcium ion transport calcium ion transport positive regulation of transport positive regulation of monoatomic ion transport regulation of primary metabolic process nucleobase-containing compound metabolic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of macromolecule metabolic process negative regulation of DNA replication negative regulation of metabolic process primary metabolic process regulation of macromolecule metabolic process DNA metabolic process nucleic acid metabolic process DNA replication negative regulation of DNA metabolic process macromolecule metabolic process regulation of DNA metabolic process regulation of DNA replication response to nutrient levels response to stress response to starvation response to alcohol response to chemical response to oxygen-containing compound	membrane-bounded organelle intracellular anatomical structure intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen endomembrane system intracellular organelle lumen intracellular organelle cellular anatomical structure cytoplasmic vesicle neuronal dense core vesicle lumen vesicle neuronal dense core vesicle vesicle lumen membrane-bounded organelle intracellular anatomical structure intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen endomembrane system intracellular organelle lumen intracellular organelle cellular anatomical structure cytoplasmic vesicle neuronal dense core vesicle lumen vesicle neuronal dense core vesicle vesicle lumen dense core granule intracellular membrane-bounded organelle secretory granule lumen organelle lumen organelle secretory granule dense core granule lumen secretory vesicle cytoplasm rough endoplasmic reticulum endoplasmic reticulum extracellular region perinuclear region of cytoplasm postsynapse synapse cell junction transport vesicle presynapse synaptic vesicle exocytic vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001704	Prepro-orexin	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: O43612	narcolepsy 1 narcolepsy-cataplexy syndrome cocaine abuse Pain cocaine dependence substance withdrawal syndrome narcolepsy obesity disorder heart disease neurodegenerative disease sleep-wake disorder cannabis dependence vitiligo hypothyroidism narcolepsy without cataplexy narcolepsy 1 narcolepsy-cataplexy syndrome cocaine abuse Pain cocaine dependence substance withdrawal syndrome narcolepsy obesity disorder heart disease neurodegenerative disease sleep-wake disorder cannabis dependence vitiligo hypothyroidism narcolepsy without cataplexy depressive disorder Hashimoto thyroiditis Kleine-Levin syndrome

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.