Annotations: 8WU1

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth C]	SCOP2B Superfamily	Arrestin/Vps26-like	8055051	3002071	SCOP2B (2022-06-29)
D [auth R]	SCOP2B Superfamily	G protein-coupled receptor-like	8091168	3000473	SCOP2B (2022-06-29)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth H]	Heavy Chain	IGHV3	-	beta-arrestin-1 \| cannabinoid receptor 1,vasopressin v2 receptor	SAbDab (2025-02-28)
C [auth L]	Light Chain	IGKV1	Kappa	beta-arrestin-1 \| cannabinoid receptor 1,vasopressin v2 receptor	SAbDab (2025-02-28)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth C]	PF00339	Arrestin (or S-antigen), N-terminal domain (Arrestin_N)	Arrestin (or S-antigen), N-terminal domain	Ig-like beta-sandwich fold. Scop reports duplication with C-terminal domain.	Domain
A [auth C]	PF02752	Arrestin (or S-antigen), C-terminal domain (Arrestin_C)	Arrestin (or S-antigen), C-terminal domain	Ig-like beta-sandwich fold. Scop reports duplication with N-terminal domain.	Domain
D [auth R]	PF00001	7 transmembrane receptor (rhodopsin family) (7tm_1)	7 transmembrane receptor (rhodopsin family)	This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GC ...	This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GCPRs of the rhodopsin superfamily. All opsins bind a chromophore, such as 11-cis-retinal. The function of most opsins other than the photoisomerases is split into two steps: light absorption and G-protein activation. Photoisomerases, on the other hand, are not coupled to G-proteins - they are thought to generate and supply the chromophore that is used by visual opsins [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C]	Beta-arrestin-1	clathrin binding protein binding binding protein-containing complex binding AP-2 adaptor complex binding clathrin heavy chain binding signaling receptor binding acetylcholine receptor binding small molecule binding ion binding phosphatidylinositol-3,4,5-trisphosphate binding anion binding phospholipid binding lipid binding clathrin binding protein binding binding protein-containing complex binding AP-2 adaptor complex binding clathrin heavy chain binding signaling receptor binding acetylcholine receptor binding small molecule binding ion binding phosphatidylinositol-3,4,5-trisphosphate binding anion binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding molecular adaptor activity G protein-coupled receptor binding inositol hexakisphosphate binding alcohol binding	cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus positive regulation of ERK1 and ERK2 cascade regulation of intracellular signal transduction intracellular signaling cassette cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction response to stimulus signaling positive regulation of biological process regulation of signal transduction intracellular signal transduction cell communication positive regulation of response to stimulus positive regulation of ERK1 and ERK2 cascade regulation of intracellular signal transduction intracellular signaling cassette signal transduction positive regulation of cellular process regulation of biological process regulation of signaling positive regulation of MAPK cascade biological regulation positive regulation of intracellular signal transduction regulation of MAPK cascade regulation of response to stimulus MAPK cascade regulation of cell communication cellular process ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade positive regulation of signaling localization import into cell receptor internalization transport receptor-mediated endocytosis endocytosis establishment of localization vesicle-mediated transport protein localization establishment of protein localization cellular localization nitrogen compound transport protein transport cellular macromolecule localization macromolecule localization regulation of localization regulation of cellular component organization positive regulation of cellular component organization regulation of receptor internalization cellular component organization positive regulation of endocytosis cellular component organization or biogenesis positive regulation of receptor-mediated endocytosis regulation of endocytosis regulation of transport regulation of receptor-mediated endocytosis regulation of vesicle-mediated transport positive regulation of receptor internalization positive regulation of transport negative adaptation of signaling pathway negative regulation of signaling negative regulation of biological process desensitization of G protein-coupled receptor signaling pathway negative regulation of G protein-coupled receptor signaling pathway negative regulation of cell communication negative regulation of cellular process regulation of G protein-coupled receptor signaling pathway negative regulation of response to stimulus negative regulation of signal transduction adaptation of signaling pathway G protein-coupled receptor signaling pathway clathrin-dependent endocytosis cell surface receptor signaling pathway Notch signaling pathway negative regulation of Notch signaling pathway regulation of Notch signaling pathway catabolic process proteolysis involved in protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis ubiquitin-dependent protein catabolic process metabolic process macromolecule metabolic process protein metabolic process multicellular organismal process sensory perception of light stimulus system process sensory perception nervous system process visual perception positive regulation of phosphorylation regulation of protein modification process regulation of protein phosphorylation positive regulation of protein metabolic process positive regulation of phosphate metabolic process regulation of primary metabolic process positive regulation of metabolic process positive regulation of protein modification process regulation of phosphate metabolic process phosphate-containing compound metabolic process positive regulation of macromolecule metabolic process positive regulation of protein phosphorylation phosphorus metabolic process protein modification process protein phosphorylation positive regulation of phosphorus metabolic process phosphorylation regulation of protein metabolic process regulation of macromolecule metabolic process macromolecule modification regulation of phosphorus metabolic process regulation of phosphorylation regulation of metabolic process G protein-coupled receptor internalization	cell projection cellular anatomical structure pseudopodium plasma membrane bounded cell projection protein-containing complex intracellular anatomical structure plasma membrane protein complex membrane plasma membrane membrane protein complex coated membrane endomembrane system clathrin coat membrane coat cell projection cellular anatomical structure pseudopodium plasma membrane bounded cell projection protein-containing complex intracellular anatomical structure plasma membrane protein complex membrane plasma membrane membrane protein complex coated membrane endomembrane system clathrin coat membrane coat cell periphery clathrin-coated pit cytoplasm clathrin coat of coated pit cytosol membrane-bounded organelle intracellular organelle cytoplasmic vesicle organelle intracellular vesicle intracellular membrane-bounded organelle vesicle nucleus
B [auth H]	Fab30 heavy chain	-	-	-
C [auth L]	Fab30 light chain	-	-	-
D [auth R]	Cannabinoid receptor 1,Vasopressin V2 receptor	vasopressin receptor activity peptide receptor activity molecular transducer activity G protein-coupled receptor activity G protein-coupled peptide receptor activity signaling receptor activity transmembrane signaling receptor activity identical protein binding protein binding binding cannabinoid receptor activity	regulation of body fluid levels hemostasis biological regulation regulation of biological quality regulation of tube diameter multicellular organismal process regulation of biological process system process regulation of tube size regulation of system process positive regulation of biological process positive regulation of vasoconstriction circulatory system process regulation of blood circulation regulation of body fluid levels hemostasis biological regulation regulation of biological quality regulation of tube diameter multicellular organismal process regulation of biological process system process regulation of tube size regulation of system process positive regulation of biological process positive regulation of vasoconstriction circulatory system process regulation of blood circulation vascular process in circulatory system regulation of vasoconstriction positive regulation of multicellular organismal process regulation of multicellular organismal process blood vessel diameter maintenance vasoconstriction blood circulation regulation of anatomical structure size regulation of biosynthetic process regulation of cellular process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression positive regulation of metabolic process biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process regulation of macromolecule biosynthetic process metabolic process cellular process positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of cellular process cellular response to stimulus response to stimulus signaling cell communication adenylate cyclase-modulating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway signal transduction cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to endogenous stimulus response to chemical cellular response to hormone stimulus response to peptide response to cytokine regulation of systemic arterial blood pressure by hormone regulation of systemic arterial blood pressure mediated by a chemical signal regulation of blood pressure regulation of systemic arterial blood pressure endocrine process regulation of systemic arterial blood pressure by vasopressin cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation positive regulation of cell communication regulation of signaling positive regulation of signal transduction positive regulation of intracellular signal transduction regulation of signal transduction intracellular signal transduction positive regulation of response to stimulus regulation of intracellular signal transduction regulation of response to stimulus regulation of cell communication positive regulation of signaling renal system process regulation of urine volume renal water retention negative regulation of urine volume developmental process head development forebrain development animal organ development brain development nervous system development multicellular organism development central nervous system development anatomical structure development telencephalon development system development negative regulation of cell population proliferation negative regulation of cellular process negative regulation of biological process positive regulation of adenylate cyclase activity positive regulation of molecular function regulation of molecular function positive regulation of cyclase activity activation of adenylate cyclase activity regulation of adenylate cyclase activity regulation of catalytic activity positive regulation of catalytic activity positive regulation of lyase activity positive regulation of systemic arterial blood pressure positive regulation of blood pressure spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation regulation of penile erection regulation of reproductive process mating behavior behavior reproductive behavior penile erection copulation positive regulation of programmed cell death regulation of apoptotic process regulation of programmed cell death cell death positive regulation of apoptotic process apoptotic process programmed cell death learning or memory nervous system process cognition memory monoamine transport regulation of localization nitrogen compound transport negative regulation of amine transport regulation of catecholamine secretion transport negative regulation of transport organic hydroxy compound transport dopamine transport localization secretion by cell regulation of secretion by cell negative regulation of secretion catecholamine transport negative regulation of dopamine secretion signal release negative regulation of secretion by cell secretion regulation of transport export from cell cell-cell signaling negative regulation of catecholamine secretion dopamine secretion establishment of localization regulation of secretion catecholamine secretion amine transport regulation of amine transport regulation of dopamine secretion regulation of neuron projection development regulation of cellular component organization positive regulation of cellular component organization cellular developmental process cell projection organization cell development neuron projection development cellular component organization neurogenesis neuron differentiation positive regulation of neuron projection development cell differentiation positive regulation of cell projection organization cellular component organization or biogenesis plasma membrane bounded cell projection organization regulation of cell projection organization generation of neurons neuron development regulation of plasma membrane bounded cell projection organization protein localization establishment of protein localization cellular macromolecule localization regulation of peptide hormone secretion regulation of hormone levels establishment of protein localization to extracellular region protein secretion regulation of protein secretion cellular localization regulation of hormone secretion regulation of protein localization regulation of peptide secretion hormone secretion protein localization to extracellular region peptide secretion amide transport regulation of peptide transport regulation of establishment of protein localization regulation of protein transport peptide transport protein transport regulation of cellular localization regulation of insulin secretion peptide hormone secretion macromolecule localization hormone transport insulin secretion positive regulation of acute inflammatory response to antigenic stimulus regulation of defense response regulation of acute inflammatory response to antigenic stimulus regulation of response to external stimulus positive regulation of acute inflammatory response inflammatory response to antigenic stimulus positive regulation of response to external stimulus positive regulation of inflammatory response positive regulation of immune response response to stress regulation of response to stress regulation of immune system process acute inflammatory response positive regulation of immune system process defense response immune response regulation of inflammatory response to antigenic stimulus response to external stimulus regulation of inflammatory response positive regulation of inflammatory response to antigenic stimulus acute inflammatory response to antigenic stimulus immune system process positive regulation of defense response regulation of acute inflammatory response regulation of immune response inflammatory response neuron recognition neuron projection fasciculation axonal fasciculation cell recognition axon development inorganic ion homeostasis intracellular calcium ion homeostasis homeostatic process calcium ion homeostasis regulation of cytosolic calcium ion concentration regulation of presynaptic cytosolic calcium ion concentration cellular homeostasis neuron cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis regulation of behavior feeding behavior regulation of feeding behavior glucose homeostasis carbohydrate homeostasis G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger cannabinoid signaling pathway negative regulation of monoatomic ion transport monoatomic ion transport serotonin secretion negative regulation of serotonin secretion regulation of monoatomic ion transport serotonin transport regulation of serotonin secretion trans-synaptic signaling synaptic transmission, GABAergic modulation of chemical synaptic transmission chemical synaptic transmission synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of synaptic transmission, GABAergic multi-multicellular organism process maternal process involved in female pregnancy female pregnancy multi-organism reproductive process response to alcohol response to oxygen-containing compound response to ethanol adenylate cyclase-activating G protein-coupled receptor signaling pathway regulation of action potential negative regulation of action potential action potential regulation of membrane potential trans-synaptic signaling by endocannabinoid retrograde trans-synaptic signaling retrograde trans-synaptic signaling by endocannabinoid trans-synaptic signaling by lipid retrograde trans-synaptic signaling by lipid regulation of leukocyte activation cell activation regulation of cell activation myeloid leukocyte activation leukocyte activation negative regulation of cell activation negative regulation of mast cell activation negative regulation of immune system process mast cell activation regulation of mast cell activation negative regulation of multicellular organismal process negative regulation of leukocyte activation synaptic transmission, glutamatergic regulation of synaptic transmission, glutamatergic response to nutrient levels response to nutrient response to nicotine biological process involved in interspecies interaction between organisms response to lipid 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 nitrogen compound response to cocaine response to alkaloid acute-phase response regulation of heat generation positive regulation of heat generation heat generation positive regulation of fever generation fever generation multicellular organismal-level homeostasis temperature homeostasis regulation of fever generation negative regulation of blood pressure catabolic process negative regulation of fatty acid oxidation negative regulation of small molecule metabolic process negative regulation of fatty acid beta-oxidation oxoacid metabolic process ketone metabolic process regulation of lipid metabolic process organic acid metabolic process organic acid catabolic process regulation of primary metabolic process cellular catabolic process regulation of fatty acid oxidation monocarboxylic acid catabolic process fatty acid oxidation regulation of small molecule metabolic process carboxylic acid catabolic process fatty acid beta-oxidation small molecule metabolic process lipid oxidation negative regulation of lipid catabolic process negative regulation of catabolic process fatty acid metabolic process lipid catabolic process negative regulation of fatty acid metabolic process negative regulation of metabolic process regulation of fatty acid beta-oxidation carboxylic acid metabolic process primary metabolic process lipid modification regulation of catabolic process regulation of lipid catabolic process regulation of ketone metabolic process fatty acid catabolic process regulation of fatty acid metabolic process monocarboxylic acid metabolic process small molecule catabolic process negative regulation of lipid metabolic process lipid metabolic process	cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular organelle bounding membrane of organelle cytoplasmic vesicle vesicle membrane clathrin-coated vesicle endocytic vesicle membrane coated vesicle vesicle endocytic vesicle cellular anatomical structure membrane membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular organelle bounding membrane of organelle cytoplasmic vesicle vesicle membrane clathrin-coated vesicle endocytic vesicle membrane coated vesicle vesicle endocytic vesicle clathrin-coated vesicle membrane clathrin-coated endocytic vesicle membrane intracellular membrane-bounded organelle clathrin-coated endocytic vesicle cytoplasmic vesicle membrane coated vesicle membrane organelle cytoplasm organelle membrane cell periphery plasma membrane Golgi apparatus endomembrane system endosome perinuclear region of cytoplasm endoplasmic reticulum cytoskeleton membraneless organelle intracellular membraneless organelle actin cytoskeleton presynapse synapse cell junction presynaptic membrane plasma membrane region synaptic membrane glutamatergic synapse mitochondrial membrane mitochondrion organelle outer membrane organelle envelope mitochondrial envelope mitochondrial outer membrane outer membrane membrane microdomain membrane raft growth cone axon cell projection distal axon neuron projection plasma membrane bounded cell projection site of polarized growth GABA-ergic synapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C]	IPR000698	Arrestin	Family
A [auth C]	IPR011021	Arrestin-like, N-terminal	Domain
A [auth C]	IPR014753	Arrestin, N-terminal	Homologous Superfamily
A [auth C]	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A [auth C]	IPR014752	Arrestin-like, C-terminal	Homologous Superfamily
A [auth C]	IPR017864	Arrestin, conserved site	Conserved Site
A [auth C]	IPR011022	Arrestin C-terminal-like domain	Domain
D [auth R]	IPR000161	Vasopressin V2 receptor	Family
D [auth R]	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
D [auth R]	IPR017452	GPCR, rhodopsin-like, 7TM	Domain
D [auth R]	IPR001817	Vasopressin receptor	Family
D [auth R]	IPR000810	Cannabinoid receptor type 1	Family
D [auth R]	IPR002230	Cannabinoid receptor family	Family
D [auth R]	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
D [auth R]	IPR017452	GPCR, rhodopsin-like, 7TM	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
D [auth R]	Pharos: P21554	nephrogenic diabetes insipidus nephrogenic syndrome of inappropriate antidiuresis congenital adrenal hyperplasia cardiomyopathy congestive heart failure diabetes insipidus, nephrogenic, X-linked Oliguria diabetes insipidus X-linked disease inappropriate ADH syndrome hereditary von Willebrand disease intellectual disability systemic lupus erythematosus kidney disease diabetes insipidus, nephrogenic, autosomal nephrogenic diabetes insipidus nephrogenic syndrome of inappropriate antidiuresis congenital adrenal hyperplasia cardiomyopathy congestive heart failure diabetes insipidus, nephrogenic, X-linked Oliguria diabetes insipidus X-linked disease inappropriate ADH syndrome hereditary von Willebrand disease intellectual disability systemic lupus erythematosus kidney disease diabetes insipidus, nephrogenic, autosomal hemophilia A autosomal dominant hypophosphatemic rickets rheumatoid arthritis celiac disease genetic endocrine growth disease heart failure obesity disorder cannabis dependence pancreatitis rhabdomyosarcoma status epilepticus Huntington disease Pain temporal lobe epilepsy cocaine abuse visual epilepsy endometriosis substance withdrawal syndrome cirrhosis of liver cocaine dependence schizophrenia multiple sclerosis cutaneous melanoma lung adenocarcinoma malignant colon neoplasm bipolar disorder pancreatic intraductal papillary-mucinous neoplasm malignant pancreatic neoplasm medulloblastoma common cold depressive disorder anxiety disorder drug dependence oligodendroglioma ovarian cancer large cell medulloblastoma attention deficit hyperactivity disorder, inattentive type lung cancer binge eating disorder malignant ependymoma breast cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia psoriasis monogenic obesity Alzheimer disease interstitial cystitis ductal breast carcinoma in situ substance dependence atypical teratoid rhabdoid tumor substance-related disorder major depressive disorder pancreatic intraductal papillary-mucinous carcinoma pancreatic neoplasm glioblastoma pituitary cancer tuberculosis migraine disorder adenoma movement disorder allergic rhinitis hypotensive disorder non-small cell lung carcinoma invasive ductal breast carcinoma astrocytic tumor osteosarcoma substance abuse juvenile Huntington disease

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth C], D [auth R]	PDBTM	Annotated as membrane protein by PDBTM

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
D [auth R]	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046
D [auth R]	TPO	Parent Component: THR RESID: AA0037 , AA0038 PSI-MOD : O-phospho-L-serine MOD:00046 , O-phospho-L-threonine MOD:00047

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.