7YMJ | pdb_00007ymj

Cryo-EM structure of alpha1AAR-Nb6 complex bound to tamsulosin

External Resource: Annotation

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: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth D]	LNT_N	e7ymjD1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: LNT_N	ECOD (v294.1)
A	LNT_N	e7ymjA1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: LNT_N	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	IGHV1	-	alpha1a-adrenergic receptor	SAbDab (2026-04-17)

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
B [auth D]	Nb6	-	-	-
A	alpha1A-adrenergic receptor	protein heterodimerization activity protein binding binding protein dimerization activity alpha1-adrenergic receptor activity alpha-adrenergic receptor activity G protein-coupled amine receptor activity molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity adrenergic receptor activity neuropeptide binding peptide binding protein heterodimerization activity protein binding binding protein dimerization activity alpha1-adrenergic receptor activity alpha-adrenergic receptor activity G protein-coupled amine receptor activity molecular transducer activity G protein-coupled receptor activity transmembrane signaling receptor activity signaling receptor activity adrenergic receptor activity neuropeptide binding peptide binding peptide receptor activity G protein-coupled opioid receptor activity G protein-coupled peptide receptor activity dynorphin receptor activity receptor serine/threonine kinase binding signaling receptor binding	response to stimulus response to chemical response to xenobiotic stimulus positive regulation of cytosolic calcium ion concentration biological regulation regulation of biological quality regulation of biological process signaling cell-cell signaling neuron-glial cell signaling cellular process cell communication cellular response to stimulus positive regulation of cell communication response to stimulus response to chemical response to xenobiotic stimulus positive regulation of cytosolic calcium ion concentration biological regulation regulation of biological quality regulation of biological process signaling cell-cell signaling neuron-glial cell signaling cellular process cell communication cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction positive regulation of biological process 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 signal transduction positive regulation of cellular process regulation of signaling positive regulation of MAPK cascade positive regulation of intracellular signal transduction regulation of MAPK cascade regulation of response to stimulus MAPK cascade regulation of cell communication ERK1 and ERK2 cascade regulation of ERK1 and ERK2 cascade positive regulation of signaling regulation of tube diameter multicellular organismal process system process regulation of tube size regulation of system 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 heart process negative regulation of heart rate regulation of systemic arterial blood pressure by carotid sinus baroreceptor feedback regulation of heart contraction negative regulation of biological process negative regulation of blood pressure negative regulation of systemic arterial blood pressure nervous system process involved in regulation of systemic arterial blood pressure regulation of heart rate nervous system process regulation of blood pressure regulation of systemic arterial blood pressure by baroreceptor feedback negative regulation of blood circulation negative regulation of heart rate involved in baroreceptor response to increased systemic arterial blood pressure baroreceptor response to increased systemic arterial blood pressure negative regulation of heart contraction regulation of systemic arterial blood pressure heart contraction negative regulation of multicellular organismal process phospholipase C-activating G protein-coupled receptor signaling pathway phospholipase C-activating adrenergic receptor signaling pathway adrenergic receptor signaling pathway G protein-coupled receptor signaling pathway regulation of systemic arterial blood pressure mediated by a chemical signal positive regulation of blood pressure positive regulation of blood circulation regulation of systemic arterial blood pressure by norepinephrine-epinephrine positive regulation of blood pressure by epinephrine-norepinephrine positive regulation of heart rate positive regulation of heart rate by epinephrine-norepinephrine positive regulation of heart contraction reflex pilomotor reflex response to external stimulus modulation of chemical synaptic transmission positive regulation of synaptic transmission, GABAergic synaptic signaling trans-synaptic signaling synaptic transmission, GABAergic positive regulation of synaptic transmission chemical synaptic transmission regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of synaptic transmission, GABAergic smooth muscle contraction muscle contraction muscle system process apoptotic process cell death programmed cell death norepinephrine-epinephrine vasoconstriction involved in regulation of systemic arterial blood pressure regulation of action potential positive regulation of action potential action potential regulation of membrane potential adenylate cyclase-activating adrenergic receptor signaling pathway adenylate cyclase-activating G protein-coupled receptor signaling pathway adenylate cyclase-modulating G protein-coupled receptor signaling pathway negative regulation of cell population proliferation cell population proliferation regulation of cell population proliferation negative regulation of cellular process muscle hypertrophy regulation of muscle adaptation positive regulation of cardiac muscle hypertrophy striated muscle hypertrophy regulation of muscle system process regulation of cardiac muscle hypertrophy regulation of muscle hypertrophy muscle adaptation positive regulation of muscle hypertrophy cardiac muscle hypertrophy negative regulation of catabolic process catabolic process negative regulation of metabolic process autophagy regulation of catabolic process regulation of autophagy negative regulation of autophagy metabolic process process utilizing autophagic mechanism regulation of metabolic process positive regulation of smooth muscle contraction regulation of muscle contraction regulation of smooth muscle contraction positive regulation of muscle contraction cellular developmental process cardiac muscle cell development developmental growth cell development organ growth muscle cell differentiation cell growth striated muscle tissue development muscle structure development multicellular organism development striated muscle cell development muscle cell development cell differentiation anatomical structure development cardiac cell development muscle tissue development cardiac muscle tissue growth system development developmental process heart development heart growth developmental cell growth cardiac muscle tissue development physiological muscle hypertrophy growth animal organ development cardiac muscle cell differentiation tissue development cardiocyte differentiation circulatory system development cell growth involved in cardiac muscle cell development physiological cardiac muscle hypertrophy striated muscle cell differentiation regulation of the force of heart contraction by chemical signal regulation of the force of heart contraction positive regulation of the force of heart contraction by chemical signal positive regulation of the force of heart contraction by epinephrine-norepinephrine adult heart development response to hormone response to endogenous stimulus positive regulation of cardiac muscle contraction cardiac muscle contraction striated muscle contraction positive regulation of striated muscle contraction regulation of cardiac muscle contraction regulation of striated muscle contraction ovulation cycle rhythmic process estrous cycle reproductive process multicellular organismal reproductive process G protein-coupled opioid receptor signaling pathway sensory perception behavior learning learning or memory cognition conditioned place preference associative learning biological process involved in interspecies interaction between organisms defense response to virus defense response response to other organism response to stress response to external biotic stimulus response to virus response to biotic stimulus response to acrylamide response to oxygen-containing compound response to nitrogen compound neuropeptide signaling pathway locomotory behavior adult behavior behavioral response to cocaine response to cocaine response to alkaloid response to estrogen immune response immune system process homeostatic process cellular response to glucose stimulus intracellular glucose homeostasis cellular response to oxygen-containing compound response to hexose cellular response to carbohydrate stimulus cellular response to chemical stimulus cellular homeostasis response to monosaccharide response to carbohydrate chemical homeostasis response to glucose glucose homeostasis carbohydrate homeostasis cellular response to hexose stimulus intracellular chemical homeostasis cellular response to monosaccharide stimulus maternal behavior parental behavior reproductive behavior regulation of localization negative regulation of luteinizing hormone secretion negative regulation of transport localization negative regulation of secretion regulation of luteinizing hormone secretion luteinizing hormone secretion negative regulation of hormone secretion negative regulation of secretion by cell regulation of hormone levels establishment of localization regulation of secretion endocrine hormone secretion negative regulation of gonadotropin secretion regulation of endocrine process regulation of hormone secretion gonadotropin secretion transport negative regulation of signaling hormone secretion negative regulation of cell communication secretion by cell regulation of secretion by cell signal release secretion regulation of transport regulation of gonadotropin secretion export from cell endocrine process hormone transport eating behavior feeding behavior sensory perception of temperature stimulus response to lipid cellular response to lipopolysaccharide cellular response to molecule of bacterial origin response to lipopolysaccharide cellular response to biotic stimulus response to bacterium cellular response to lipid response to molecule of bacterial origin adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway adenylate cyclase-inhibiting opioid receptor signaling pathway monoamine transport nitrogen compound transport regulation of catecholamine secretion organic hydroxy compound transport positive regulation of secretion by cell dopamine transport positive regulation of amine transport catecholamine transport positive regulation of secretion positive regulation of catecholamine secretion dopamine secretion positive regulation of dopamine secretion catecholamine secretion amine transport positive regulation of transport regulation of amine transport regulation of dopamine secretion regulation of body fluid levels secretion by tissue digestive system process regulation of digestive system process body fluid secretion digestion saliva secretion regulation of saliva secretion response to alcohol response to ethanol response to peptide hormone response to insulin p38MAPK cascade positive regulation of p38MAPK cascade regulation of p38MAPK cascade regulation of eating behavior positive regulation of feeding behavior positive regulation of eating behavior regulation of behavior positive regulation of behavior regulation of feeding behavior sensory perception of pain response to nicotine positive regulation of cation transmembrane transport regulation of potassium ion transport monoatomic ion transmembrane transport potassium ion transmembrane transport regulation of monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport positive regulation of monoatomic ion transport positive regulation of transmembrane transport monoatomic ion transport positive regulation of monoatomic ion transmembrane transport monoatomic cation transport regulation of metal ion transport regulation of monoatomic ion transport regulation of potassium ion transmembrane transport transmembrane transport positive regulation of potassium ion transport regulation of transmembrane transport positive regulation of potassium ion transmembrane transport regulation of monoatomic cation transmembrane transport potassium ion transport	membrane-bounded organelle intracellular anatomical structure nuclear membrane membrane nucleus intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle envelope cellular anatomical structure organelle nuclear envelope organelle membrane cytoplasm membrane-bounded organelle intracellular anatomical structure nuclear membrane membrane nucleus intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle envelope cellular anatomical structure organelle nuclear envelope organelle membrane cytoplasm cytosol membrane microdomain cell periphery membrane raft plasma membrane raft plasma membrane plasma membrane region caveola membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen postsynapse postsynaptic membrane synapse cell junction synaptic membrane sarcolemma T-tubule somatodendritic compartment cell body perikaryon neuronal cell body presynapse presynaptic membrane cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection sarcoplasm endoplasmic reticulum sarcoplasmic reticulum intracellular vesicle transport vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane synaptic vesicle synaptic vesicle membrane vesicle transport vesicle exocytic vesicle membrane cytoplasmic vesicle membrane secretory vesicle exocytic vesicle mitochondrion axon axon terminus distal axon neuron projection terminus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
A	IPR002233	Adrenoceptor family	Family
A	IPR017452	GPCR, rhodopsin-like, 7TM	Domain
A	IPR001004	Alpha 1A adrenoceptor	Family
A	IPR001418	Opioid receptor	Family
A	IPR000276	G protein-coupled receptor, rhodopsin-like	Family
A	IPR000452	Kappa opioid receptor	Family
A	IPR017452	GPCR, rhodopsin-like, 7TM	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: P41145	Diabetes Mellitus, Experimental cirrhosis of liver Parkinson disease peripheral vascular disease proctitis pulmonary emphysema allergic rhinitis seasonal allergic rhinitis anaphylaxis atopic conjunctivitis vasomotor rhinitis bronchiectasis open-angle glaucoma cocaine abuse common cold Diabetes Mellitus, Experimental cirrhosis of liver Parkinson disease peripheral vascular disease proctitis pulmonary emphysema allergic rhinitis seasonal allergic rhinitis anaphylaxis atopic conjunctivitis vasomotor rhinitis bronchiectasis open-angle glaucoma cocaine abuse common cold hemorrhoid hypertensive disorder rhinitis asthma benign prostatic hyperplasia lung cancer bronchitis cerebrovascular disorder cocaine dependence phaeochromocytoma essential hypertension psoriasis hepatocellular carcinoma schizophrenia alveolar capillary dysplasia with misalignment of pulmonary veins vascular disease bipolar disorder major depressive disorder cannabis dependence Pain opiate dependence cocaine dependence substance withdrawal syndrome visual epilepsy cocaine abuse pilocytic astrocytoma depressive disorder medulloblastoma obesity disorder pain agnosia schizophrenia glioblastoma malignant ependymoma atypical teratoid rhabdoid tumor large cell medulloblastoma malignant glioma astrocytic tumor oligodendroglioma

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	G Protein-Coupled Receptors: Class A	α_1A-adrenergic receptor miniG_sq-Nb29 complex with bound oxymetazoline

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.