Annotations: 8JXR

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	G protein-coupled receptor-like	8102689	3000473	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	e8jxrA01	A: ATPD N-terminal domain-like	X: N-terminal domain of the delta subunit of the F1F0-ATP synthase	H: Galactose-binding domain-like	T: L_thumb_ring_vir	F:	ECOD (20:10:01)
B	e8jxrB01	A: ATPD N-terminal domain-like	X: N-terminal domain of the delta subunit of the F1F0-ATP synthase	H: Galactose-binding domain-like	T: L_thumb_ring_vir	F:	ECOD (20:10:01)
C	e8jxrC01	A: ATPD N-terminal domain-like	X: N-terminal domain of the delta subunit of the F1F0-ATP synthase	H: Galactose-binding domain-like	T: L_thumb_ring_vir	F:	ECOD (20:10:01)
D [auth H]	e8jxrH01	A: ATPD N-terminal domain-like	X: N-terminal domain of the delta subunit of the F1F0-ATP synthase	H: Galactose-binding domain-like	T: L_thumb_ring_vir	F:	ECOD (20:10:01)
E [auth L]	e8jxrL01	A: ATPD N-terminal domain-like	X: N-terminal domain of the delta subunit of the F1F0-ATP synthase	H: Galactose-binding domain-like	T: L_thumb_ring_vir	F:	ECOD (20:10:01)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B	Heavy Chain	IGHV1	-	d(1a) dopamine receptor	SAbDab (2026-03-13)
D [auth H]	Heavy Chain	IGHV5	-	maltose/maltodextrin-binding periplasmic protein,immunoglobulin g-binding protein a,immunoglobulin g-binding protein g	SAbDab (2026-03-13)
E [auth L]	Light Chain	IGKV8	Kappa	maltose/maltodextrin-binding periplasmic protein,immunoglobulin g-binding protein a,immunoglobulin g-binding protein g	SAbDab (2026-03-13)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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	D(1A) dopamine receptor	protein binding binding arrestin family protein binding neurotransmitter receptor activity dopamine neurotransmitter receptor activity postsynaptic neurotransmitter receptor activity molecular transducer activity signaling receptor activity dopamine neurotransmitter receptor activity, coupled via Gs cation binding ion binding catecholamine binding dopamine binding small molecule binding protein binding binding arrestin family protein binding neurotransmitter receptor activity dopamine neurotransmitter receptor activity postsynaptic neurotransmitter receptor activity molecular transducer activity signaling receptor activity dopamine neurotransmitter receptor activity, coupled via Gs cation binding ion binding catecholamine binding dopamine binding small molecule binding G-protein alpha-subunit binding G protein-coupled receptor activity transmembrane signaling receptor activity protein-containing complex binding heterotrimeric G-protein binding	response to stimulus response to chemical response to xenobiotic stimulus behavior multicellular organismal process system process learning learning or memory nervous system process feeding behavior cognition associative learning conditioned taste aversion trans-synaptic signaling response to stimulus response to chemical response to xenobiotic stimulus behavior multicellular organismal process system process learning learning or memory nervous system process feeding behavior cognition associative learning conditioned taste aversion trans-synaptic signaling regulation of biological process regulation of signaling regulation of cellular process modulation of chemical synaptic transmission signaling biological regulation cell-cell signaling presynaptic modulation of chemical synaptic transmission chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication cellular process regulation of amine metabolic process dopamine metabolic process primary metabolic process catechol-containing compound metabolic process regulation of primary metabolic process amine metabolic process catecholamine metabolic process phenol-containing compound metabolic process metabolic process regulation of catecholamine metabolic process regulation of metabolic process biogenic amine metabolic process regulation of dopamine metabolic process reproductive process multicellular organismal reproductive process reproductive behavior mating behavior nonassociative learning habituation cellular response to nitrogen compound cellular response to stimulus response to dopamine cellular response to dopamine response to monoamine response to catecholamine cellular response to catecholamine stimulus signal transduction G protein-coupled dopamine receptor signaling pathway response to oxygen-containing compound response to nitrogen compound cellular response to oxygen-containing compound cellular response to chemical stimulus cellular response to monoamine stimulus G protein-coupled receptor signaling pathway memory establishment of protein localization cellular localization nucleocytoplasmic transport transport nuclear transport intracellular transport protein localization to nucleus establishment of localization localization import into nucleus establishment of protein localization to organelle protein transport establishment of localization in cell macromolecule localization protein localization to organelle protein import into nucleus intracellular protein localization intracellular protein transport cellular developmental process forebrain development central nervous system neuron development cell development substrate-independent telencephalic tangential migration cerebral cortex GABAergic interneuron differentiation interneuron migration multicellular organism development neurogenesis central nervous system neuron differentiation telencephalon cell migration forebrain cell migration neuron differentiation cell differentiation substrate-independent telencephalic tangential interneuron migration cerebral cortex GABAergic interneuron migration anatomical structure development cell migration cell motility GABAergic neuron differentiation system development developmental process head development interneuron migration from the subpallium to the cortex neuron migration forebrain generation of neurons animal organ development brain development nervous system development cerebral cortex GABAergic interneuron development generation of neurons forebrain neuron development central nervous system development neuron development telencephalon development cerebral cortex neuron differentiation forebrain neuron differentiation astrocyte differentiation glial cell development astrocyte development gliogenesis glial cell differentiation regulation of localization regulation of potassium ion transport regulation of transport regulation of monoatomic ion transport positive regulation of biological process metal ion transport positive regulation of potassium ion transport positive regulation of transport positive regulation of monoatomic ion transport monoatomic ion transport potassium ion transport monoatomic cation transport regulation of metal ion transport adenylate cyclase-activating adrenergic receptor signaling pathway adenylate cyclase-activating G protein-coupled receptor signaling pathway adrenergic receptor signaling pathway adenylate cyclase-modulating G protein-coupled receptor signaling pathway transmission of nerve impulse striatum development subpallium development adult walking behavior adult locomotory behavior adult behavior locomotory behavior walking behavior adenylate cyclase-activating dopamine receptor signaling pathway cellular component organization cellular component biogenesis cell junction organization cellular component assembly cell junction assembly synapse organization cellular component organization or biogenesis synapse assembly phospholipase C-activating dopamine receptor signaling pathway phospholipase C-activating G protein-coupled receptor signaling pathway G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger smooth muscle contraction phasic smooth muscle contraction muscle contraction peristalsis muscle system process modification of postsynaptic structure modification of synaptic structure behavioral response to cocaine response to cocaine response to alkaloid positive regulation of cell communication synaptic transmission, glutamatergic regulation of synaptic transmission, glutamatergic positive regulation of cellular process positive regulation of synaptic transmission positive regulation of synaptic transmission, glutamatergic positive regulation of signaling maternal behavior parental behavior sensitization positive regulation of locomotion regulation of cell motility regulation of neuron migration positive regulation of cell migration positive regulation of cell motility regulation of cell migration locomotion regulation of locomotion positive regulation of neuron migration monoamine transport import into cell nitrogen compound transport organic hydroxy compound transport dopamine transport catecholamine uptake dopamine uptake involved in synaptic transmission catecholamine transport regulation of dopamine uptake involved in synaptic transmission neurotransmitter reuptake regulation of neurotransmitter uptake regulation of neurotransmitter transport neurotransmitter transport neurotransmitter uptake synaptic transmission, dopaminergic dopamine uptake response to light stimulus visual learning visual behavior response to radiation response to abiotic stimulus action potential neuronal action potential regulation of biological quality regulation of membrane potential regulation of tube diameter regulation of tube size circulatory system process vascular process in circulatory system blood vessel diameter maintenance vasodilation blood circulation regulation of anatomical structure size positive regulation of signal transduction regulation of signal transduction intracellular signal transduction positive regulation of response to stimulus regulation of intracellular signal transduction intracellular signaling cassette positive regulation of MAPK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade regulation of response to stimulus MAPK cascade dentate gyrus development pallium development hippocampus development limbic system development multicellular organismal-level homeostasis homeostatic process temperature homeostasis regulation of calcium ion transport positive regulation of cation transmembrane transport positive regulation of calcium ion transport monoatomic ion transmembrane transport regulation of monoatomic ion transmembrane transport calcium ion transport regulation of calcium ion transmembrane transport monoatomic cation transmembrane 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 calcium ion transmembrane import into cytosol regulation of release of sequestered calcium ion into cytosol transmembrane transport release of sequestered calcium ion into cytosol regulation of transmembrane transport regulation of monoatomic cation transmembrane transport calcium ion transmembrane transport response to amine response to amphetamine behavioral defense response fear response behavioral fear response defense response response to stress multicellular organismal response to stress negative regulation of signaling negative regulation of biological process negative regulation of synaptic transmission negative regulation of cell communication negative regulation of cellular process regulation of synaptic plasticity long-term synaptic depression operant conditioning long-term synaptic potentiation grooming behavior	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane protein-containing complex plasma membrane protein complex plasma membrane signaling receptor complex G protein-coupled receptor complex cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane protein-containing complex plasma membrane protein complex plasma membrane signaling receptor complex G protein-coupled receptor complex membrane protein complex receptor complex presynapse presynaptic membrane glutamatergic synapse neuron spine neuron projection dendritic spine plasma membrane bounded cell projection somatodendritic compartment cell projection dendrite dendritic tree membrane-bounded organelle organelle cilium non-motile cilium GABA-ergic synapse ciliary membrane bounding membrane of organelle organelle membrane cell projection membrane intracellular anatomical structure organelle subcompartment intracellular membrane-bounded organelle endomembrane system endoplasmic reticulum subcompartment intracellular organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum cytoplasm endoplasmic reticulum membrane nucleus
B	NBA3	-	-	-
C	Maltose/maltodextrin-binding periplasmic protein,Immunoglobulin G-binding protein A,Immunoglobulin G-binding protein G	protein-containing complex binding binding immunoglobulin binding IgG binding transporter activity carbohydrate transmembrane transporter activity transmembrane transporter activity oligosaccharide binding disaccharide binding carbohydrate binding maltose binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process cell chemotaxis chemotaxis response to external stimulus cellular response to chemical stimulus taxis response to chemical cell migration cell motility cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process cell chemotaxis chemotaxis response to external stimulus cellular response to chemical stimulus taxis response to chemical cell migration cell motility locomotion localization transport carbohydrate transport oligosaccharide transport disaccharide transport establishment of localization maltose transport polysaccharide localization dextrin transport macromolecule localization maltodextrin transmembrane transport polysaccharide transport response to disaccharide response to oxygen-containing compound detection of maltose stimulus detection of stimulus response to carbohydrate detection of chemical stimulus detection of disaccharide stimulus response to maltose detection of carbohydrate stimulus	ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex transporter complex ATP-binding cassette (ABC) transporter complex cell periphery cellular anatomical structure transmembrane transporter complex ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing maltose transport complex periplasmic space ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex transporter complex ATP-binding cassette (ABC) transporter complex cell periphery cellular anatomical structure transmembrane transporter complex ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing maltose transport complex periplasmic space outer membrane-bounded periplasmic space cell envelope
D [auth H]	Fab 8D3 heavy chain	-	-	-
E [auth L]	Fab 8D3 light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000929	Dopamine receptor family	Family
A	IPR001413	Dopamine D1 receptor	Family
A	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
A	IPR017452	GPCR, rhodopsin-like, 7TM	Domain
C	IPR009063	Immunoglobulin/albumin-binding domain superfamily	Homologous Superfamily
C	IPR005877	YSIRK Gram-positive signal peptide	Domain
C	IPR000724	IgG-binding B	Domain
C	IPR019950	M protein-type anchor motif	Conserved Site
C	IPR035152	GA-like domain	Domain
C	IPR019931	LPXTG cell wall anchor motif	Conserved Site
C	IPR009063	Immunoglobulin/albumin-binding domain superfamily	Homologous Superfamily
C	IPR005877	YSIRK Gram-positive signal peptide	Domain
C	IPR036779	LysM domain superfamily	Homologous Superfamily
C	IPR005038	Octapeptide repeat	Repeat
C	IPR003132	Protein A, Ig-binding domain	Domain
C	IPR018392	LysM domain	Domain
C	IPR019931	LPXTG cell wall anchor motif	Conserved Site
C	IPR006061	Solute-binding family 1, conserved site	Conserved Site
C	IPR006060	Maltose/Cyclodextrin ABC transporter, substrate-binding protein	Family
C	IPR006059	Bacterial-type extracellular solute-binding protein	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P21728	schizophrenia Parkinson disease bipolar disorder cocaine dependence Catalepsy amphetamine abuse visual epilepsy cocaine abuse pilocytic astrocytoma malignant glioma medulloblastoma depressive disorder primitive neuroectodermal tumor glioblastoma malignant ependymoma schizophrenia Parkinson disease bipolar disorder cocaine dependence Catalepsy amphetamine abuse visual epilepsy cocaine abuse pilocytic astrocytoma malignant glioma medulloblastoma depressive disorder primitive neuroectodermal tumor glioblastoma malignant ependymoma autism drug-induced dyskinesia postencephalitic Parkinson disease hypotensive disorder astrocytic tumor malignant essential hypertension movement disorder oligodendroglioma

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, C	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, C	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	Dopamine D₁ receptor (DRD1 or D1R) with bound nanobody NBA3 and LSD