Annotations: 9O10

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B], B [auth A], C, D	PF07885	Ion channel (Ion_trans_2)	Ion channel	-	Family
A [auth B], B [auth A], C, D	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth A], C, D	Potassium voltage-gated channel subfamily B member 1	monoatomic cation transmembrane transporter activity delayed rectifier potassium channel 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 inorganic molecular entity transmembrane transporter activity channel activity inorganic cation transmembrane transporter activity monoatomic cation transmembrane transporter activity delayed rectifier potassium channel 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 inorganic molecular entity transmembrane transporter activity channel activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity potassium channel regulator activity channel regulator activity ion channel regulator activity molecular function regulator activity transporter regulator activity protein heterodimerization activity protein binding binding protein dimerization activity transmembrane transporter binding SNARE binding outward rectifier potassium channel activity	response to stimulus response to stress response to wounding response to axon injury transport monoatomic ion transmembrane transport potassium ion transmembrane transport inorganic ion transmembrane transport establishment of localization metal ion transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization response to stimulus response to stress response to wounding response to axon injury transport monoatomic ion transmembrane transport potassium ion transmembrane transport inorganic ion transmembrane transport establishment of localization metal ion transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport potassium ion transport cellular process monoatomic cation transport cellular response to stimulus cellular response to nutrient levels response to nutrient levels protein localization to cell periphery cellular localization protein localization to plasma membrane macromolecule localization intracellular protein localization localization within membrane protein localization to membrane regulation of biological process regulation of cellular process cell surface receptor signaling pathway signaling biological regulation glutamate receptor signaling pathway cell communication signal transduction cellular response to metal ion cellular response to chemical stimulus response to metal ion response to chemical cellular response to calcium ion response to calcium ion monoamine transport regulation of localization nitrogen compound transport regulation of catecholamine secretion positive regulation of biological process organic hydroxy compound transport positive regulation of secretion by cell positive regulation of amine transport secretion by cell regulation of secretion by cell catecholamine transport positive regulation of secretion positive regulation of cellular process secretion regulation of transport positive regulation of catecholamine secretion export from cell regulation of secretion catecholamine secretion amine transport positive regulation of transport regulation of amine transport regulated exocytosis regulation of calcium ion-dependent exocytosis vesicle-mediated transport positive regulation of exocytosis regulation of regulated secretory pathway positive regulation of regulated secretory pathway calcium-ion regulated exocytosis positive regulation of calcium ion-dependent exocytosis regulation of vesicle-mediated transport exocytosis regulation of exocytosis response to acid chemical response to oxygen-containing compound response to nitrogen compound response to L-glutamate response to amino acid modulation of chemical synaptic transmission negative regulation of signaling negative regulation of biological process negative regulation of synaptic transmission negative regulation of cell communication synaptic signaling positive regulation of long-term synaptic depression negative regulation of cellular process regulation of biological quality regulation of synaptic plasticity trans-synaptic signaling regulation of signaling cell-cell signaling chemical synaptic transmission regulation of trans-synaptic signaling anterograde trans-synaptic signaling long-term synaptic depression regulation of long-term synaptic depression regulation of cell communication chemical homeostasis homeostatic process glucose homeostasis carbohydrate homeostasis establishment of protein localization regulation of protein localization protein targeting positive regulation of establishment of protein localization regulation of protein targeting to membrane establishment of protein localization to membrane regulation of establishment of protein localization protein targeting to membrane regulation of cellular localization regulation of protein targeting positive regulation of protein targeting to membrane neuron apoptotic process regulation of apoptotic process regulation of programmed cell death regulation of motor neuron apoptotic process motor neuron apoptotic process cell death apoptotic process programmed cell death regulation of neuron apoptotic process action potential regulation of membrane potential cellular response to glucose stimulus intracellular glucose homeostasis cellular response to oxygen-containing compound response to hexose cellular response to carbohydrate stimulus cellular homeostasis response to monosaccharide response to carbohydrate response to glucose cellular response to hexose stimulus intracellular chemical homeostasis cellular response to monosaccharide stimulus multicellular organismal process cellular developmental process cell development cellular component organization neurogenesis multicellular organism development neuron differentiation cell differentiation anatomical structure development cellular component organization or biogenesis cell maturation system development membrane organization developmental process developmental maturation nervous system development neuronal ion channel clustering generation of neurons clustering of voltage-gated potassium channels anatomical structure maturation neuron development neuron maturation membrane docking organelle localization by membrane tethering organelle localization vesicle docking exocytic process vesicle docking involved in exocytosis regulation of action potential export across plasma membrane potassium ion export across plasma membrane negative regulation of protein transport negative regulation of transport negative regulation of secretion negative regulation of hormone secretion negative regulation of secretion by cell regulation of peptide hormone secretion negative regulation of peptide hormone secretion regulation of hormone levels establishment of protein localization to extracellular region negative regulation of establishment of protein localization protein secretion regulation of protein secretion negative regulation of protein secretion regulation of hormone secretion regulation of peptide secretion hormone secretion protein localization to extracellular region negative regulation of peptide secretion peptide secretion amide transport signal release negative regulation of protein localization regulation of peptide transport regulation of protein transport peptide transport negative regulation of insulin secretion protein transport regulation of insulin secretion peptide hormone secretion hormone transport insulin secretion cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization norepinephrine transport positive regulation of norepinephrine secretion organic cation transport norepinephrine secretion regulation of norepinephrine secretion	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane somatodendritic compartment cell body perikaryon neuronal cell body cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane somatodendritic compartment cell body perikaryon neuronal cell body cell projection proximal dendrite dendrite dendritic tree neuron projection plasma membrane bounded cell projection sarcolemma cholinergic synapse intracellular anatomical structure perinuclear region of cytoplasm cytoplasm neuronal cell body membrane cell body membrane axon apical part of cell apical plasma membrane cell surface postsynaptic specialization membrane postsynaptic specialization organelle 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 cell leading edge leading edge membrane neuron projection membrane dendrite membrane cell projection membrane lateral plasma membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth A], C, D	IPR003973	Potassium channel, voltage dependent, Kv2	Family
A [auth B], B [auth A], C, D	IPR028325	Voltage-gated potassium channel	Family
A [auth B], B [auth A], C, D	IPR003968	Potassium channel, voltage dependent, Kv	Family
A [auth B], B [auth A], C, D	IPR004350	Potassium channel, voltage dependent, Kv2.1	Family
A [auth B], B [auth A], C, D	IPR003131	Potassium channel tetramerisation-type BTB domain	Domain
A [auth B], B [auth A], C, D	IPR011333	SKP1/BTB/POZ domain superfamily	Homologous Superfamily
A [auth B], B [auth A], C, D	IPR000210	BTB/POZ domain	Domain
A [auth B], B [auth A], C, D	IPR005821	Ion transport domain	Domain
A [auth B], B [auth A], C, D	IPR027359	Voltage-dependent channel domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth B], B [auth A], C, D	Pharos: Q14721	developmental and epileptic encephalopathy, 26 schizophrenia malignant glioma oligodendroglioma pancreatic ductal adenocarcinoma primitive neuroectodermal tumor atypical teratoid rhabdoid tumor congenital diaphragmatic hernia endogenous depression glioblastoma Lambert-Eaton myasthenic syndrome malignant colon neoplasm medulloblastoma osteosarcoma pilocytic astrocytoma developmental and epileptic encephalopathy, 26 schizophrenia malignant glioma oligodendroglioma pancreatic ductal adenocarcinoma primitive neuroectodermal tumor atypical teratoid rhabdoid tumor congenital diaphragmatic hernia endogenous depression glioblastoma Lambert-Eaton myasthenic syndrome malignant colon neoplasm medulloblastoma osteosarcoma pilocytic astrocytoma progressive supranuclear palsy breast carcinoma cystic fibrosis Diaphragmatic Hernia epilepsy intellectual disability large cell medulloblastoma malignant ependymoma multiple sclerosis ovarian cancer pituitary cancer psoriasis breast fibroadenoma developmental and epileptic encephalopathy ductal breast carcinoma in situ invasive ductal breast carcinoma lung carcinoma

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth B], B [auth A], C, D	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Potassium, Sodium, & Proton Ion-Selective	KCNB1 potassium voltage-gated channel K_v2.1, a voltage sensor in up conformation, under high potassium

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.