9QK1 | pdb_00009qk1

GABA-A receptor a2b3 (1:4) + a2NB06(silent) + b3Mb125 + GABA

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02932	Neurotransmitter-gated ion-channel transmembrane region (Neur_chan_memb)	Neurotransmitter-gated ion-channel transmembrane region	This family includes the four transmembrane helices that form the ion channel.	Domain
A	PF02931	Neurotransmitter-gated ion-channel ligand binding domain (Neur_chan_LBD)	Neurotransmitter-gated ion-channel ligand binding domain	This family is the extracellular ligand binding domain of these ion channels [1]. This domain forms a pentameric arrangement in the known structure.	Domain
B, C, D, E	PF02932	Neurotransmitter-gated ion-channel transmembrane region (Neur_chan_memb)	Neurotransmitter-gated ion-channel transmembrane region	This family includes the four transmembrane helices that form the ion channel.	Domain
B, C, D, E	PF02931	Neurotransmitter-gated ion-channel ligand binding domain (Neur_chan_LBD)	Neurotransmitter-gated ion-channel ligand binding domain	This family is the extracellular ligand binding domain of these ion channels [1]. This domain forms a pentameric arrangement in the known structure.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Gamma-aminobutyric acid receptor subunit alpha-2	transmitter-gated monoatomic ion channel activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity GABA-gated chloride ion channel activity molecular transducer activity gated channel activity monoatomic ion channel activity signaling receptor activity ligand-gated monoatomic anion channel activity neurotransmitter receptor activity ligand-gated channel activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity passive transmembrane transporter activity channel activity transmitter-gated monoatomic ion channel activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity GABA-gated chloride ion channel activity molecular transducer activity gated channel activity monoatomic ion channel activity signaling receptor activity ligand-gated monoatomic anion channel activity neurotransmitter receptor activity ligand-gated channel activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity passive transmembrane transporter activity channel activity transmitter-gated channel activity monoatomic ion transmembrane transporter activity monoatomic anion channel activity transporter activity transmembrane transporter activity chloride channel activity benzodiazepine receptor activity ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential GABA-A receptor activity GABA receptor activity transmembrane signaling receptor activity transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential	transport monoatomic ion transmembrane transport establishment of localization chloride transport transmembrane transport localization chloride transmembrane transport monoatomic anion transport monoatomic anion transmembrane transport monoatomic ion transport cellular process inorganic anion transport regulation of biological process signaling transport monoatomic ion transmembrane transport establishment of localization chloride transport transmembrane transport localization chloride transmembrane transport monoatomic anion transport monoatomic anion transmembrane transport monoatomic ion transport cellular process inorganic anion transport regulation of biological process signaling biological regulation cell-cell signaling gamma-aminobutyric acid signaling pathway cell communication developmental process multicellular organismal process inhibitory synapse assembly nervous system development cellular component organization cellular component biogenesis multicellular organism development cell junction organization cellular component assembly cell junction assembly anatomical structure development synapse organization cellular component organization or biogenesis synapse assembly animal gross anatomical part developmental process system development trans-synaptic signaling synaptic transmission, GABAergic chemical synaptic transmission synaptic signaling anterograde trans-synaptic signaling	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane postsynaptic specialization membrane postsynaptic specialization organelle GABA receptor complex cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane postsynaptic specialization membrane postsynaptic specialization organelle GABA receptor complex protein-containing complex signaling receptor complex GABA-A receptor complex GABA-ergic synapse membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle intracellular organelle cytoplasmic vesicle membrane vesicle membrane cytoplasmic vesicle cytoplasm vesicle organelle membrane cell leading edge neuron projection leading edge membrane plasma membrane bounded cell projection somatodendritic compartment neuron projection membrane cell projection dendrite membrane dendrite dendritic tree cell projection membrane cell body neuronal cell body transport vesicle membrane endomembrane system presynapse bounding membrane of organelle synaptic vesicle synaptic vesicle membrane transport vesicle exocytic vesicle membrane secretory vesicle exocytic vesicle axon inhibitory synapse
B, C, D, E	Gamma-aminobutyric acid receptor subunit beta-3,Soluble cytochrome b562	binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding protein binding signaling receptor binding transmitter-gated monoatomic ion channel activity monoatomic anion transmembrane transporter activity binding tetrapyrrole binding heme binding electron transfer activity cation binding transition metal ion binding iron ion binding ion binding metal ion binding small molecule binding protein binding signaling receptor binding transmitter-gated monoatomic ion channel activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity GABA-gated chloride ion channel activity molecular transducer activity gated channel activity monoatomic ion channel activity signaling receptor activity ligand-gated monoatomic anion channel activity neurotransmitter receptor activity ligand-gated channel activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity passive transmembrane transporter activity channel activity transmitter-gated channel activity monoatomic ion transmembrane transporter activity monoatomic anion channel activity transporter activity transmembrane transporter activity chloride channel activity GABA-A receptor activity GABA receptor activity transmembrane signaling receptor activity transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential identical protein binding	electron transport chain metabolic process cellular process generation of precursor metabolites and energy developmental process ear development sensory organ development inner ear development cochlea development anatomical structure development animal organ development animal gross anatomical part developmental process transport monoatomic ion transmembrane transport electron transport chain metabolic process cellular process generation of precursor metabolites and energy developmental process ear development sensory organ development inner ear development cochlea development anatomical structure development animal organ development animal gross anatomical part developmental process transport monoatomic ion transmembrane transport establishment of localization chloride transport transmembrane transport localization chloride transmembrane transport monoatomic anion transport monoatomic anion transmembrane transport monoatomic ion transport inorganic anion transport cellular response to nitrogen compound cellular response to stimulus cellular response to chemical stimulus response to histamine response to stimulus response to chemical cellular response to histamine response to nitrogen compound multicellular organismal process mechanoreceptor differentiation inner ear receptor cell development cellular developmental process cell development nervous system development inner ear receptor cell differentiation generation of neurons neurogenesis multicellular organism development neuron differentiation cell differentiation neuron development system development regulation of biological process signaling biological regulation cell-cell signaling gamma-aminobutyric acid signaling pathway cell communication regulation of cellular process signal transduction inhibitory synapse assembly cellular component organization cellular component biogenesis cell junction organization cellular component assembly cell junction assembly synapse organization cellular component organization or biogenesis synapse assembly regulation of postsynaptic membrane potential system process chemical synaptic transmission, postsynaptic synaptic signaling regulation of biological quality trans-synaptic signaling cell surface receptor signaling pathway nervous system process chemical synaptic transmission anterograde trans-synaptic signaling inhibitory postsynaptic potential regulation of membrane potential synaptic transmission, GABAergic sexual reproduction reproductive process cellular process involved in reproduction in multicellular organism developmental process involved in reproduction gamete generation chromatin organization chromatin remodeling regulation of biosynthetic process epigenetic programming of gene expression epigenetic regulation of gene expression multicellular organismal reproductive process regulation of macromolecule metabolic process gene expression genomic imprinting macromolecule biosynthetic process regulation of gene expression biosynthetic process germ cell development regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of metabolic process nerve development innervation negative regulation of synaptic transmission, GABAergic negative regulation of signaling modulation of chemical synaptic transmission negative regulation of biological process negative regulation of synaptic transmission negative regulation of cell communication negative regulation of cellular process regulation of signaling regulation of trans-synaptic signaling regulation of cell communication regulation of synaptic transmission, GABAergic extrasynaptic signaling via GABA roof of mouth development	cellular anatomical structure extracellular region periplasmic space protein-containing complex transmembrane transporter complex membrane chloride channel complex membrane protein complex transporter complex monoatomic ion channel complex cell periphery postsynapse postsynaptic membrane synapse cellular anatomical structure extracellular region periplasmic space protein-containing complex transmembrane transporter complex membrane chloride channel complex membrane protein complex transporter complex monoatomic ion channel complex cell periphery postsynapse postsynaptic membrane synapse cell junction plasma membrane plasma membrane region synaptic membrane cell surface postsynaptic specialization membrane postsynaptic specialization organelle GABA receptor complex signaling receptor complex GABA-A receptor complex GABA-ergic synapse membrane-bounded organelle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle intracellular organelle cytoplasmic vesicle membrane vesicle membrane cytoplasmic vesicle cytoplasm vesicle organelle membrane neuron spine neuron projection dendritic spine plasma membrane bounded cell projection somatodendritic compartment cell projection dendrite dendritic tree
F	a2NB06	-	-	-
G, H, I	Mb125	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001390	Gamma-aminobutyric-acid A receptor, alpha subunit	Family
A	IPR006202	Neurotransmitter-gated ion-channel ligand-binding domain	Domain
A	IPR036719	Neurotransmitter-gated ion-channel transmembrane domain superfamily	Homologous Superfamily
A	IPR006028	Gamma-aminobutyric acid A receptor/Glycine receptor alpha	Family
A	IPR006029	Neurotransmitter-gated ion-channel transmembrane domain	Domain
A	IPR036734	Neurotransmitter-gated ion-channel ligand-binding domain superfamily	Homologous Superfamily
A	IPR047023	Gamma-aminobutyric acid receptor subunit alpha-2, extracellular domain	Domain
A	IPR018000	Neurotransmitter-gated ion-channel, conserved site	Conserved Site
A	IPR038050	Neuronal acetylcholine receptor	Homologous Superfamily
A	IPR047024	Gamma-aminobutyric acid receptor subunit alpha 1-6, transmembrane domain	Domain
A	IPR005432	Gamma-aminobutyric-acid A receptor, alpha 2 subunit	Family
A	IPR006201	Neurotransmitter-gated ion-channel	Family
B, C, D, E	IPR010980	Cytochrome c/b562	Homologous Superfamily
B, C, D, E	IPR009155	Cytochrome b562	Family
B, C, D, E	IPR006202	Neurotransmitter-gated ion-channel ligand-binding domain	Domain
B, C, D, E	IPR036719	Neurotransmitter-gated ion-channel transmembrane domain superfamily	Homologous Superfamily
B, C, D, E	IPR006028	Gamma-aminobutyric acid A receptor/Glycine receptor alpha	Family
B, C, D, E	IPR002289	Gamma-aminobutyric-acid A receptor, beta subunit	Family
B, C, D, E	IPR006029	Neurotransmitter-gated ion-channel transmembrane domain	Domain
B, C, D, E	IPR036734	Neurotransmitter-gated ion-channel ligand-binding domain superfamily	Homologous Superfamily
B, C, D, E	IPR018000	Neurotransmitter-gated ion-channel, conserved site	Conserved Site
B, C, D, E	IPR038050	Neuronal acetylcholine receptor	Homologous Superfamily
B, C, D, E	IPR006201	Neurotransmitter-gated ion-channel	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	: P47869	alcohol abuse cocaine dependence epilepsy alcohol dependence heroin dependence cocaine abuse cannabis dependence pilocytic astrocytoma Preoperative Anxiety epilepsy, idiopathic generalized status epilepticus glioblastoma ulcerative colitis alcohol withdrawal delirium irritable bowel syndrome alcohol abuse cocaine dependence epilepsy alcohol dependence heroin dependence cocaine abuse cannabis dependence pilocytic astrocytoma Preoperative Anxiety epilepsy, idiopathic generalized status epilepticus glioblastoma ulcerative colitis alcohol withdrawal delirium irritable bowel syndrome lung carcinoma astrocytic tumor medulloblastoma autism pituitary cancer primitive neuroectodermal tumor subependymal giant cell astrocytoma large cell medulloblastoma malignant ependymoma attention deficit hyperactivity disorder, inattentive type mixed anxiety and depressive disorder panic disorder peptic ulcer disease psoriasis conduct disorder epilepsy with generalized tonic-clonic seizures generalized anxiety disorder tetanus insomnia anxiety disorder malignant glioma atypical teratoid rhabdoid tumor oligodendroglioma Parkinson disease
B, C, D, E	: P28472	epilepsy Angelman syndrome childhood absence epilepsy Lennox-Gastaut syndrome developmental and epileptic encephalopathy, 43 epilepsy, childhood absence, susceptibility to, 5 absence epilepsy autism insomnia autism spectrum disorder intellectual disability schizophrenia depressive disorder malignant ependymoma duplication/inversion 15q11 epilepsy Angelman syndrome childhood absence epilepsy Lennox-Gastaut syndrome developmental and epileptic encephalopathy, 43 epilepsy, childhood absence, susceptibility to, 5 absence epilepsy autism insomnia autism spectrum disorder intellectual disability schizophrenia depressive disorder malignant ependymoma duplication/inversion 15q11 status epilepticus pancreatic intraductal papillary-mucinous neoplasm astrocytic tumor gastric carcinoma pilocytic astrocytoma glioblastoma bipolar disorder primitive neuroectodermal tumor brain injury interstitial cystitis juvenile absence epilepsy Sjogren syndrome malignant glioma mixed anxiety and depressive disorder epilepsy with generalized tonic-clonic seizures oligodendroglioma epilepsy, childhood absence, susceptibility to, 1 pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia peptic ulcer disease pituitary cancer psoriasis irritable bowel syndrome schizoaffective disorder large cell medulloblastoma Crohn disease lung carcinoma medulloblastoma alcohol withdrawal delirium early myoclonic encephalopathy tetanus panic disorder atypical teratoid rhabdoid tumor Pick disease generalized anxiety disorder Prader-Willi syndrome