6RV3

Crystal structure of the human two pore domain potassium ion channel TASK-1 (K2P3.1) in a closed conformation with a bound inhibitor BAY 1000493

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
A	Ion_trans_2_1	e6rv3A1	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_2_1	ECOD (1.6)
A	Ion_trans_2	e6rv3A2	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_2	ECOD (1.6)
B	Ion_trans_2_1	e6rv3B2	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_2_1	ECOD (1.6)
B	Ion_trans_2	e6rv3B1	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_2	ECOD (1.6)
C	Ion_trans_2_1	e6rv3C2	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_2_1	ECOD (1.6)
C	Ion_trans_2	e6rv3C1	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_2	ECOD (1.6)
D	Ion_trans_2_1	e6rv3D1	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_2_1	ECOD (1.6)
D	Ion_trans_2	e6rv3D2	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: Ion_trans_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.287.70	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (utative)
B	1.10.287.70	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (utative)
C	1.10.287.70	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (utative)
D	1.10.287.70	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF07885	Ion channel (Ion_trans_2)	Ion channel	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Potassium channel subfamily K member 3	monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity monoatomic ion channel activity potassium ion leak channel activity potassium channel activity monoatomic cation channel activity passive transmembrane transporter activity narrow pore channel activity leak channel activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity monoatomic ion channel activity potassium ion leak channel activity potassium channel activity monoatomic cation channel activity passive transmembrane transporter activity narrow pore channel activity leak channel activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity protein binding binding S100 protein binding gated channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity open rectifier potassium channel activity voltage-gated potassium channel activity outward rectifier potassium channel activity	developmental process ear development sensory organ development inner ear development cochlea development animal organ development anatomical structure development localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport developmental process ear development sensory organ development inner ear development cochlea development animal organ development anatomical structure development localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport response to stimulus response to chemical response to xenobiotic stimulus monoatomic ion transmembrane transport potassium ion transmembrane transport inorganic ion transmembrane transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport cellular process regulation of resting membrane potential biological regulation regulation of biological quality regulation of membrane potential cellular response to stimulus cellular response to metal ion cellular response to chemical stimulus response to metal ion response to zinc ion cellular response to zinc ion trans-synaptic signaling synaptic signaling regulation of biological process signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission cell communication negative regulation of cytosolic calcium ion concentration response to decreased oxygen levels cellular response to oxygen levels cellular response to hypoxia cellular response to decreased oxygen levels cellular response to stress response to hypoxia response to stress response to oxygen levels response to abiotic stimulus stabilization of membrane potential	synapse cell junction cellular anatomical entity cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR003280	Two pore domain potassium channel	Family
A, B, C, D	IPR003092	Two pore domain potassium channel, TASK family	Family
A, B, C, D	IPR013099	Potassium channel domain	Domain
A, B, C, D	IPR005406	Potassium channel subfamily K member 3	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: O14649	pulmonary hypertension, primary, 4 Gliosis malignant glioma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma primary pulmonary hypertension pulmonary hypertension, primary, 1 cerebrovascular disorder interstitial cystitis lung carcinoma malignant pancreatic neoplasm osteosarcoma pancreatic intraductal papillary-mucinous neoplasm pituitary cancer pulmonary hypertension, primary, 4 Gliosis malignant glioma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma primary pulmonary hypertension pulmonary hypertension, primary, 1 cerebrovascular disorder interstitial cystitis lung carcinoma malignant pancreatic neoplasm osteosarcoma pancreatic intraductal papillary-mucinous neoplasm pituitary cancer adrenal cortex carcinoma progressive supranuclear palsy atypical teratoid rhabdoid tumor hypertensive disorder lung adenocarcinoma malignant ependymoma medulloblastoma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia astrocytic tumor pulmonary arterial hypertension subependymal giant cell astrocytoma glioblastoma idiopathic pulmonary arterial hypertension lung cancer

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Potassium, Sodium, & Proton Ion-Selective	Two-Pore Domain Potassium Channel K_2P3.1 (TASK-1), closed conformation

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.