Annotations: 1PLW

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Met-enkephalin 1	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 opioid peptide activity G protein-coupled receptor binding opioid 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 developmental process multicellular organismal process cellular developmental process 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 developmental process multicellular organismal process cellular developmental process ossification cell differentiation osteoblast differentiation response to chemical response to epinephrine response to metal ion response to calcium ion response to inorganic substance cellular response to endogenous stimulus cellular response to growth factor stimulus response to transforming growth factor beta cellular response to transforming growth factor beta stimulus response to endogenous stimulus response to growth factor behavior general adaptation syndrome response to stress general adaptation syndrome, behavioral process multicellular organismal response to stress G protein-coupled opioid receptor signaling pathway regulation of defense response regulation of fear response positive regulation of biological process regulation of behavioral fear response positive regulation of response to stimulus regulation of behavior behavioral defense response regulation of response to stress regulation of multicellular organismal process behavioral fear response defense response positive regulation of behavioral fear response fear response positive regulation of fear response positive regulation of behavior regulation of response to stimulus positive regulation of defense response positive regulation of multicellular organismal process response to toxic substance cellular response to nitrogen compound response to organic substance response to organonitrogen compound response to organophosphorus cellular response to organic cyclic compound response to oxygen-containing compound response to nitrogen compound response to purine-containing compound response to cAMP cellular response to oxygen-containing compound cellular response to chemical stimulus cellular response to organonitrogen compound cellular response to cAMP cellular response to organic substance response to organic cyclic compound system process sensory perception nervous system process response to oxidative stress cellular response to stress cellular response to oxidative stress cellular response to chemical stress locomotory behavior exploration behavior locomotory exploration behavior response to nutrient levels response to lipid response to nutrient response to vitamin cellular response to vitamin D cellular response to nutrient levels response to vitamin D cellular response to vitamin cellular response to lipid cellular response to nutrient response to alcohol response to ethanol startle response neuromuscular process response to external stimulus synaptic signaling cell-cell signaling synaptic signaling via neuropeptide transmission of nerve impulse aggressive behavior trans-synaptic signaling anterograde trans-synaptic signaling chemical synaptic transmission response to decreased oxygen levels response to hypoxia response to oxygen levels response to abiotic stimulus sensory perception of pain response to nicotine biological process involved in interspecies interaction between organisms response to other organism response to lipopolysaccharide response to biotic stimulus response to bacterium response to external biotic stimulus response to molecule of bacterial origin response to estradiol cellular response to virus response to virus cell population proliferation nervous system development neurogenesis multicellular organism development gliogenesis anatomical structure development glial cell proliferation system development	symmetric synapse neuron to neuron synapse synapse cell junction cellular anatomical entity membrane-bounded organelle intracellular anatomical structure intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen endomembrane system intracellular organelle lumen intracellular organelle cytoplasmic vesicle symmetric synapse neuron to neuron synapse synapse cell junction cellular anatomical entity membrane-bounded organelle intracellular anatomical structure intracellular vesicle membrane-enclosed lumen cytoplasmic vesicle lumen endomembrane system intracellular organelle lumen intracellular organelle 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 somatodendritic compartment cell body perikaryon neuronal cell body chromaffin granule lumen chromaffin granule cell periphery plasma membrane membrane cell body fiber cell projection neuron projection plasma membrane bounded cell projection dendrite dendritic tree endoplasmic reticulum lumen endoplasmic reticulum extracellular region axon axon terminus presynapse distal axon neuron projection terminus synaptic vesicle transport vesicle synaptic vesicle lumen exocytic vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR006024	Opioid neuropeptide precursor	Family
A	IPR000703	Proenkephalin A	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P01210	narcolepsy nervous system disorder Pain amyotrophic lateral sclerosis type 1 prostate cancer opioid abuse large cell medulloblastoma malignant glioma opiate dependence adrenal cortex carcinoma cannabis dependence drug-induced dyskinesia invasive ductal breast carcinoma malignant colon neoplasm oligodendroglioma narcolepsy nervous system disorder Pain amyotrophic lateral sclerosis type 1 prostate cancer opioid abuse large cell medulloblastoma malignant glioma opiate dependence adrenal cortex carcinoma cannabis dependence drug-induced dyskinesia invasive ductal breast carcinoma malignant colon neoplasm oligodendroglioma adenoma cystic fibrosis Duchenne muscular dystrophy Gaucher disease juvenile dermatomyositis malignant ependymoma medulloblastoma narcolepsy-cataplexy syndrome adrenal cortex adenoma pilocytic astrocytoma breast carcinoma depressive disorder glioblastoma

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Peptides	Peptides of nonregular structure	GPCR ligands	Opioid peptides

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.