8ZYU | pdb_00008zyu

Cryo-EM structure of neurotensin receptor 1 in complex with beta-arrestin1 and SBI-553 (complex 1)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: MemProtMD
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
E [auth R]	SCOP2B Superfamily	G protein-coupled receptor-like	8094449	3000473	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E [auth R]	I_LWEQ	e8zyuR01	A: a/b three-layered sandwiches	X: ATP-grasp_6	H: ATP-grasp_6	T: ATP-grasp_6	F: I_LWEQ	ECOD (v294.1)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth D]	Heavy Chain	IGHV3	-	beta-arrestin-1 \| soluble cytochrome b562,neurotensin receptor type 1	SAbDab (2026-03-27)
D [auth Q]	Light Chain	IGKV1	Kappa	beta-arrestin-1 \| soluble cytochrome b562,neurotensin receptor type 1	SAbDab (2026-03-27)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B]	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 B]	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
E [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 B]	Beta-arrestin-1	protein binding binding arrestin family protein binding GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity angiotensin receptor binding signaling receptor binding G protein-coupled receptor binding molecular adaptor activity protein binding binding arrestin family protein binding GTPase regulator activity enzyme regulator activity enzyme activator activity GTPase activator activity molecular function activator activity nucleoside-triphosphatase regulator activity molecular function regulator activity angiotensin receptor binding signaling receptor binding G protein-coupled receptor binding molecular adaptor activity ubiquitin protein ligase binding ubiquitin-like protein ligase binding enzyme binding insulin-like growth factor receptor binding molecular function inhibitor activity enzyme inhibitor activity transcription coactivator activity transcription regulator activity transcription coregulator activity	cellular homeostasis chemical homeostasis homeostatic process glucose homeostasis carbohydrate homeostasis intracellular chemical homeostasis intracellular glucose homeostasis interleukin-6 production multicellular organismal process regulation of cellular process negative regulation of biological process regulation of interleukin-6 production regulation of cytokine production cytokine production cellular homeostasis chemical homeostasis homeostatic process glucose homeostasis carbohydrate homeostasis intracellular chemical homeostasis intracellular glucose homeostasis interleukin-6 production multicellular organismal process regulation of cellular process negative regulation of biological process regulation of interleukin-6 production regulation of cytokine production cytokine production negative regulation of cellular process regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process negative regulation of metabolic process biological regulation negative regulation of cytokine production regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression negative regulation of interleukin-6 production negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process negative regulation of multicellular organismal process regulation of metabolic process negative regulation of post-translational protein modification regulation of protein modification process regulation of protein ubiquitination regulation of primary metabolic process protein ubiquitination negative regulation of protein modification process protein metabolic process negative regulation of protein ubiquitination regulation of protein modification by small protein conjugation or removal protein modification process negative regulation of protein metabolic process negative regulation of protein modification by small protein conjugation or removal regulation of post-translational protein modification regulation of protein metabolic process primary metabolic process macromolecule modification post-translational protein modification protein modification by small protein conjugation protein modification by small protein conjugation or removal actomyosin structure organization actin cytoskeleton organization actin filament organization cellular component organization cellular component biogenesis organelle organization cellular component assembly actin filament bundle organization contractile actin filament bundle assembly actin filament-based process actin filament bundle assembly stress fiber assembly cellular component organization or biogenesis supramolecular fiber organization cytoskeleton organization cellular response to stimulus negative adaptation of signaling pathway response to stimulus negative regulation of signaling signaling desensitization of G protein-coupled receptor signaling pathway regulation of signal transduction negative regulation of G protein-coupled receptor signaling pathway negative regulation of cell communication cell communication signal transduction regulation of G protein-coupled receptor signaling pathway regulation of signaling negative regulation of response to stimulus negative regulation of signal transduction regulation of response to stimulus adaptation of signaling pathway regulation of cell communication G protein-coupled receptor signaling pathway system process sensory perception nervous system process catabolic process protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process ubiquitin-dependent protein catabolic process muscle hypertrophy regulation of muscle adaptation positive regulation of cardiac muscle hypertrophy regulation of system process positive regulation of biological process striated muscle hypertrophy regulation of muscle system process muscle system process regulation of cardiac muscle hypertrophy regulation of muscle hypertrophy muscle adaptation positive regulation of muscle hypertrophy cardiac muscle hypertrophy positive regulation of multicellular organismal process negative regulation of interleukin-8 production interleukin-8 production regulation of interleukin-8 production positive regulation of DNA-templated transcription RNA metabolic process positive regulation of macromolecule biosynthetic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process positive regulation of metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II positive regulation of biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of transcription by RNA polymerase II positive regulation of transcription by RNA polymerase II nucleobase-containing compound biosynthetic process nucleic acid metabolic process positive regulation of RNA metabolic process positive regulation of RNA biosynthetic process regulation of DNA-templated transcription import into cell receptor internalization transport vesicle-mediated transport localization G protein-coupled receptor internalization establishment of localization receptor-mediated endocytosis endocytosis positive regulation of cell communication positive regulation of signal transduction intracellular signal transduction positive regulation of response to stimulus positive regulation of ERK1 and ERK2 cascade regulation of intracellular signal transduction intracellular signaling cassette positive regulation of MAPK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade MAPK cascade ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade positive regulation of signaling establishment of protein localization protein transport macromolecule localization intracellular protein localization regulation of localization regulation of cellular component organization positive regulation of cellular component organization regulation of receptor internalization positive regulation of endocytosis 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 small GTPase-mediated signal transduction regulation of small GTPase mediated signal transduction Rho protein signal transduction regulation of Rho protein signal transduction positive regulation of Rho protein signal transduction positive regulation of small GTPase mediated signal transduction proteasomal protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process cell surface receptor signaling pathway Notch signaling pathway negative regulation of Notch signaling pathway regulation of Notch signaling pathway positive regulation of phosphorylation regulation of protein phosphorylation positive regulation of protein metabolic process positive regulation of phosphate metabolic process positive regulation of protein modification process phosphate-containing compound metabolic process positive regulation of protein phosphorylation phosphorus metabolic process protein phosphorylation positive regulation of phosphorus metabolic process phosphorylation regulation of phosphorus metabolic process regulation of phosphorylation	cell projection cellular anatomical structure pseudopodium plasma membrane bounded cell projection clathrin-coated pit membrane endomembrane system intracellular anatomical structure cytoplasm cytosol intracellular organelle organelle membraneless organelle intracellular membraneless organelle cell projection cellular anatomical structure pseudopodium plasma membrane bounded cell projection clathrin-coated pit membrane endomembrane system intracellular anatomical structure cytoplasm cytosol intracellular organelle organelle membraneless organelle intracellular membraneless organelle chromatin chromosome membrane-bounded organelle intracellular vesicle intracellular membrane-bounded organelle cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane endocytic vesicle membrane vesicle organelle membrane endocytic vesicle vacuolar membrane lytic vacuole vacuole lytic vacuole membrane lysosomal membrane lysosome Golgi membrane Golgi apparatus cell periphery plasma membrane nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen nuclear body
B [auth D]	Fab30 heavy chain	-	-	-
C [auth L]	neurotensin peptide 8-13	-	-	-
E [auth R]	Soluble cytochrome b562,Neurotensin receptor type 1	peptide receptor activity molecular transducer activity G protein-coupled receptor activity G protein-coupled neurotensin receptor activity G protein-coupled peptide receptor activity signaling receptor activity transmembrane signaling receptor activity neuropeptide receptor activity protein-containing complex binding binding identical protein binding protein binding	positive regulation of locomotion regulation of biological process regulation of locomotion biological regulation positive regulation of biological process locomotion cellular response to stimulus multicellular organismal process regulation of postsynaptic membrane potential system process regulation of cellular process response to stimulus signaling regulation of system process positive regulation of locomotion regulation of biological process regulation of locomotion biological regulation positive regulation of biological process locomotion cellular response to stimulus multicellular organismal process regulation of postsynaptic membrane potential system process regulation of cellular process response to stimulus signaling regulation of system process regulation of signal transduction chemical synaptic transmission, postsynaptic cell communication synaptic signaling positive regulation of inhibitory postsynaptic potential positive regulation of nervous system process regulation of multicellular organismal process signal transduction regulation of biological quality modulation of inhibitory postsynaptic potential trans-synaptic signaling regulation of signaling nervous system process cell surface receptor signaling pathway cell-cell signaling regulation of nervous system process chemical synaptic transmission regulation of response to stimulus anterograde trans-synaptic signaling inhibitory postsynaptic potential positive regulation of multicellular organismal process regulation of cell communication cellular process regulation of membrane potential regulation of biosynthetic 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 positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of cellular process 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 regulation of localization positive regulation of arachidonate secretion transport regulation of lipid transport regulation of arachidonate secretion localization arachidonate secretion monocarboxylic acid transport positive regulation of secretion fatty acid transport icosanoid transport regulation of icosanoid secretion icosanoid secretion long-chain fatty acid transport positive regulation of icosanoid secretion organic anion transport carboxylic acid transport secretion arachidonate transport regulation of transport lipid localization lipid transport positive regulation of lipid localization establishment of localization regulation of fatty acid transport regulation of secretion positive regulation of organic acid transport organic acid transport positive regulation of lipid transport positive regulation of transport regulation of lipid localization macromolecule localization regulation of organic acid transport positive regulation of fatty acid transport regulation of inositol phosphate biosynthetic process regulation of inositol trisphosphate biosynthetic process alcohol metabolic process inositol phosphate metabolic process regulation of primary metabolic process regulation of small molecule metabolic process phosphate-containing compound metabolic process polyol biosynthetic process inositol trisphosphate metabolic process small molecule metabolic process phosphorus metabolic process regulation of carbohydrate metabolic process carbohydrate metabolic process polyol metabolic process regulation of alcohol biosynthetic process small molecule biosynthetic process inositol trisphosphate biosynthetic process carbohydrate biosynthetic process primary metabolic process organophosphate metabolic process organophosphate biosynthetic process inositol phosphate biosynthetic process alcohol biosynthetic process regulation of phosphorus metabolic process regulation of carbohydrate biosynthetic process alcohol catabolic process catabolic process polyol catabolic process organophosphate catabolic process inositol phosphate catabolic process small molecule catabolic process detection of external stimulus response to external stimulus sensory perception of temperature stimulus sensory perception of pain detection of temperature stimulus involved in sensory perception response to temperature stimulus detection of abiotic stimulus detection of stimulus sensory perception detection of temperature stimulus response to abiotic stimulus detection of stimulus involved in sensory perception detection of temperature stimulus involved in sensory perception of pain L-glutamate import across plasma membrane import into cell nitrogen compound transport carboxylic acid transmembrane transport import across plasma membrane amino acid transmembrane transport L-amino acid transport L-glutamate import transmembrane transport amino acid transport acidic amino acid transport dicarboxylic acid transport L-alpha-amino acid transmembrane transport amino acid import across plasma membrane L-glutamate transmembrane transport ribose phosphate metabolic process nucleotide biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process cAMP biosynthetic process cyclic nucleotide metabolic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process purine nucleotide metabolic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process cyclic nucleotide biosynthetic process ribose phosphate biosynthetic process nucleoside phosphate metabolic process carbohydrate derivative biosynthetic process cAMP metabolic process cyclic purine nucleotide metabolic process nucleotide metabolic process nucleobase-containing compound biosynthetic process purine-containing compound metabolic process nucleoside phosphate biosynthetic process purine ribonucleotide metabolic process purine nucleotide biosynthetic process behavior learning learning or memory cognition conditioned place preference associative learning regulation of respiratory gaseous exchange respiratory gaseous exchange by respiratory system response to lipid response to chemical positive regulation of phosphate metabolic process positive regulation of phosphorus metabolic process positive regulation of inositol phosphate biosynthetic process positive regulation of carbohydrate metabolic process positive regulation of small molecule metabolic process positive regulation of alcohol biosynthetic process G protein-coupled receptor signaling pathway neuropeptide signaling pathway adult locomotory behavior adult behavior locomotory behavior regulation of calcium ion transport monoatomic ion transmembrane transport negative regulation of monoatomic ion transport negative regulation of biological process negative regulation of transport regulation of monoatomic ion transmembrane transport calcium ion transport metal ion transport negative regulation of transmembrane transport regulation of calcium ion transmembrane transport monoatomic cation transmembrane transport intercellular transport negative regulation of monoatomic ion transmembrane transport negative regulation of release of sequestered calcium ion into cytosol negative regulation of cellular process monoatomic ion transport negative regulation of cation transmembrane transport monoatomic cation transport regulation of metal ion transport calcium ion transmembrane import into cytosol regulation of release of sequestered calcium ion into cytosol regulation of monoatomic ion transport negative regulation of calcium ion transport release of sequestered calcium ion into cytosol regulation of transmembrane transport regulation of monoatomic cation transmembrane transport negative regulation of calcium ion transmembrane transport calcium ion transmembrane transport negative regulation of programmed cell death negative regulation of apoptotic process regulation of defense response behavioral fear response defense response regulation of fear response multicellular organismal response to stress regulation of behavioral fear response regulation of behavior behavioral defense response fear response regulation of response to stress response to stress aspartate transmembrane transport C4-dicarboxylate transport D-amino acid transport D-aspartate transmembrane transport D-aspartate import across plasma membrane regulation of membrane depolarization membrane depolarization multicellular organismal-level homeostasis homeostatic process temperature homeostasis regulation of systemic arterial blood pressure circulatory system process regulation of blood pressure negative regulation of systemic arterial blood pressure blood circulation negative regulation of blood pressure positive regulation of amine transport gamma-aminobutyric acid transport regulation of amino acid transport gamma-aminobutyric acid secretion regulation of gamma-aminobutyric acid secretion positive regulation of gamma-aminobutyric acid secretion acid secretion amine transport positive regulation of amino acid transport regulation of amine transport positive regulation of cation transmembrane transport positive regulation of calcium ion transport positive regulation of monoatomic ion transport positive regulation of calcium ion transmembrane transport positive regulation of transmembrane transport positive regulation of monoatomic ion transmembrane transport positive regulation of release of sequestered calcium ion into cytosol vocalization behavior regulation of glutamate secretion positive regulation of secretion by cell secretion by cell regulation of secretion by cell glutamate secretion positive regulation of glutamate secretion export from cell response to nutrient levels response to food	somatodendritic compartment cell body cellular anatomical structure perikaryon neuronal cell body membrane-bounded organelle intracellular organelle intracellular anatomical structure Golgi apparatus organelle cytoplasm intracellular membrane-bounded organelle endomembrane system cell projection somatodendritic compartment cell body cellular anatomical structure perikaryon neuronal cell body membrane-bounded organelle intracellular organelle intracellular anatomical structure Golgi apparatus organelle cytoplasm intracellular membrane-bounded organelle endomembrane system cell projection dendrite dendritic tree neuron projection dendritic shaft plasma membrane bounded cell projection neuron spine synapse dendritic spine postsynapse cell junction symmetric synapse neuron to neuron synapse axon axon terminus presynapse distal axon terminal bouton neuron projection terminus cell surface cell periphery plasma membrane membrane membrane microdomain membrane raft cytoplasmic side of plasma membrane cytoplasmic side of membrane side of membrane endoplasmic reticulum
D [auth Q]	Fab30 light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B]	IPR011022	Arrestin-like, C-terminal domain	Domain
A [auth B]	IPR000698	Arrestin	Family
A [auth B]	IPR014753	Arrestin, N-terminal	Homologous Superfamily
A [auth B]	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A [auth B]	IPR014752	Arrestin-like, C-terminal domain superfamily	Homologous Superfamily
A [auth B]	IPR011021	Arrestin-like, N-terminal	Domain
A [auth B]	IPR017864	Arrestin, conserved site	Conserved Site
E [auth R]	IPR003984	Neurotensin receptor	Family
E [auth R]	IPR003985	Neurotensin type 1 receptor	Family
E [auth R]	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
E [auth R]	IPR017452	GPCR, rhodopsin-like, 7TM	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth B]	Pharos: P49407	cirrhosis of liver pilocytic astrocytoma ulcerative colitis adrenal cortex carcinoma breast cancer Fibrosis, Liver large cell medulloblastoma lung carcinoma malignant glioma osteosarcoma astrocytic tumor glioblastoma lung adenocarcinoma major depressive disorder malignant mesothelioma cirrhosis of liver pilocytic astrocytoma ulcerative colitis adrenal cortex carcinoma breast cancer Fibrosis, Liver large cell medulloblastoma lung carcinoma malignant glioma osteosarcoma astrocytic tumor glioblastoma lung adenocarcinoma major depressive disorder malignant mesothelioma ovarian cancer tuberculosis atypical teratoid rhabdoid tumor ductal breast carcinoma in situ invasive ductal breast carcinoma lung cancer malignant ependymoma non-small cell lung carcinoma
E [auth R]	Pharos: P30989	Pain schizophrenia autism spectrum disorder

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A [auth B], E [auth R]	MemProtMD	Annotated as membrane protein by MemProtMD

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
E [auth R]	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046
E [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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.