Annotations: 22BK

KCNQ2/3 heterotetramer with 2:2 stoichiometry

External Resource: Annotation

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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth C]	Potassium voltage-gated channel subfamily KQT member 2	cytoskeletal protein binding ankyrin binding protein binding binding calmodulin binding monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity cytoskeletal protein binding ankyrin binding protein binding binding calmodulin binding monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity	transport monoatomic ion transmembrane transport potassium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport potassium ion transport cellular process monoatomic cation transport developmental process multicellular organism development transport monoatomic ion transmembrane transport potassium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport potassium ion transport cellular process monoatomic cation transport developmental process multicellular organism development multicellular organismal process anatomical structure development nervous system development system development trans-synaptic signaling synaptic signaling regulation of biological process signaling anterograde trans-synaptic signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication action potential regulation of biological quality regulation of membrane potential	cellular anatomical structure membrane axon cell projection main axon neuron projection node of Ranvier plasma membrane bounded cell projection synapse cell junction cell periphery plasma membrane axon initial segment voltage-gated potassium channel complex cellular anatomical structure membrane axon cell projection main axon neuron projection node of Ranvier plasma membrane bounded cell projection synapse cell junction cell periphery plasma membrane axon initial segment voltage-gated potassium channel complex protein-containing complex plasma membrane protein complex potassium channel complex membrane protein complex cation channel complex transporter complex transmembrane transporter complex monoatomic ion channel complex
C [auth D], D [auth B]	Potassium voltage-gated channel subfamily KQT member 3	monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity monoatomic cation transmembrane transporter activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity voltage-gated channel activity voltage-gated monoatomic ion channel activity potassium channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity voltage-gated potassium channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity protein binding binding calmodulin binding	trans-synaptic signaling regulation of biological process signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication synaptic signaling anterograde trans-synaptic signaling cellular process inhibitory chemical synaptic transmission transport monoatomic ion transmembrane transport potassium ion transmembrane transport trans-synaptic signaling regulation of biological process signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication synaptic signaling anterograde trans-synaptic signaling cellular process inhibitory chemical synaptic transmission transport monoatomic ion transmembrane transport potassium ion transmembrane transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport localization monoatomic ion transport potassium ion transport monoatomic cation transport developmental process multicellular organismal process cellular developmental process cell development developmental maturation nervous system development generation of neurons neurogenesis multicellular organism development neuron differentiation neuron remodeling anatomical structure maturation cell differentiation neuron development anatomical structure development neuron maturation cell maturation system development import into cell endocytosis vesicle-mediated transport establishment of protein localization cellular localization nucleocytoplasmic transport nuclear transport intracellular transport protein localization to nucleus intercellular transport 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 substantia propria of cornea development cellular response to stimulus cellular response to metal ion cellular response to chemical stimulus response to stimulus response to metal ion response to chemical cellular response to calcium ion response to calcium ion action potential initiation action potential regulation of biological quality regulation of membrane potential system process nervous system process transmission of nerve impulse neuronal action potential regulation of mitochondrial membrane potential membrane depolarization mitochondrial depolarization response to auditory stimulus response to mechanical stimulus response to abiotic stimulus response to external stimulus biosynthetic process metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process neuron apoptotic process apoptotic process cell death programmed cell death regulation of cellular process protein-containing complex organization cellular component organization cellular component biogenesis apoptotic signaling pathway apoptosome assembly cellular component assembly protein-containing complex assembly cellular component organization or biogenesis signal transduction membrane hyperpolarization protein targeting sensory perception sensory perception of sound sensory perception of mechanical stimulus regulation of synaptic plasticity regulation of signaling modulation of chemical synaptic transmission regulation of trans-synaptic signaling regulation of cell communication behavior psychomotor behavior motor behavior cellular response to xenobiotic stimulus response to xenobiotic stimulus nerve development excitatory chemical synaptic transmission regulation of action potential regulation of action potential firing threshold secretion by cell exocytosis secretion export from cell	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle axon cell projection main axon neuron projection node of Ranvier plasma membrane bounded cell projection membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle axon cell projection main axon neuron projection node of Ranvier plasma membrane bounded cell projection cell surface cell periphery plasma membrane membrane axon initial segment voltage-gated potassium channel complex protein-containing complex plasma membrane protein complex potassium channel complex membrane protein complex cation channel complex transporter complex transmembrane transporter complex monoatomic ion channel complex synapse cell junction

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth C]	IPR005821	Ion transport domain	Domain
A, B [auth C]	IPR020969	Ankyrin-G binding site	Binding Site
A, B [auth C]	IPR013821	Potassium channel, voltage dependent, KCNQ, C-terminal	Domain
A, B [auth C]	IPR003947	Potassium channel, voltage dependent, KCNQ2	Family
A, B [auth C]	IPR003937	Potassium channel, voltage dependent, KCNQ	Family
C [auth D], D [auth B]	IPR003948	Potassium channel, voltage dependent, KCNQ3	Family
C [auth D], D [auth B]	IPR013821	Potassium channel, voltage dependent, KCNQ, C-terminal	Domain
C [auth D], D [auth B]	IPR003937	Potassium channel, voltage dependent, KCNQ	Family
C [auth D], D [auth B]	IPR005821	Ion transport domain	Domain
C [auth D], D [auth B]	IPR020969	Ankyrin-G binding site	Binding Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B [auth C]	: O43526	developmental and epileptic encephalopathy, 7 epilepsy seizures, benign familial neonatal, 1 benign neonatal seizures intellectual disability brain disease benign familial neonatal epilepsy visual epilepsy nervous system disorder oligodendroglioma developmental and epileptic encephalopathy, 1 pilocytic astrocytoma developmental disability schizophrenia Epilepsy, Cryptogenic developmental and epileptic encephalopathy, 7 epilepsy seizures, benign familial neonatal, 1 benign neonatal seizures intellectual disability brain disease benign familial neonatal epilepsy visual epilepsy nervous system disorder oligodendroglioma developmental and epileptic encephalopathy, 1 pilocytic astrocytoma developmental disability schizophrenia Epilepsy, Cryptogenic seizures, benign familial infantile, 3 seizures, benign familial neonatal, 2 atypical teratoid rhabdoid tumor large cell medulloblastoma subependymal giant cell astrocytoma benign familial infantile epilepsy malignant glioma multiple sclerosis chronic obstructive pulmonary disease primitive neuroectodermal tumor astrocytic tumor glioblastoma major affective disorder 2 malignant mesothelioma nicotine dependence developmental and epileptic encephalopathy Pick disease rolandic epilepsy Lambert-Eaton myasthenic syndrome malignant ependymoma medulloblastoma bipolar disorder
C [auth D], D [auth B]	: O43525	seizures, benign familial neonatal, 2 benign neonatal seizures juvenile myoclonic epilepsy epilepsy multiple sclerosis Partial Epilepsy Treatment Adjunct primitive neuroectodermal tumor astrocytic tumor benign familial infantile epilepsy bipolar disorder intellectual disability large cell medulloblastoma malignant mesothelioma oligodendroglioma Pick disease seizures, benign familial neonatal, 2 benign neonatal seizures juvenile myoclonic epilepsy epilepsy multiple sclerosis Partial Epilepsy Treatment Adjunct primitive neuroectodermal tumor astrocytic tumor benign familial infantile epilepsy bipolar disorder intellectual disability large cell medulloblastoma malignant mesothelioma oligodendroglioma Pick disease schizophrenia atypical teratoid rhabdoid tumor benign familial neonatal epilepsy EJM1 malignant ependymoma medulloblastoma ovarian cancer pilocytic astrocytoma autism spectrum disorder glioblastoma Lambert-Eaton myasthenic syndrome malignant glioma

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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.

22BK | pdb_000022bk

KCNQ2/3 heterotetramer with 2:2 stoichiometry

External Resource: Annotation

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage

Pharos: Disease Associations Pharos Homepage Annotation