Annotations: 5Y7L

Solution structure of Hbeta4 extracellular loop of BK potassium channel

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	CaKB	e5y7lA1	A: beta barrels	X: extracellular domain of BK channel beta4 subunit	H: extracellular domain of BK channel beta4 subunit	T: extracellular domain of BK channel beta4 subunit	F: CaKB	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03185	Calcium-activated potassium channel, beta subunit (CaKB)	Calcium-activated potassium channel, beta subunit	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Calcium-activated potassium channel subunit beta-4	passive transmembrane transporter activity gated channel activity monoatomic ion channel activity voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity potassium channel regulator activity channel regulator activity ion channel regulator activity molecular function regulator activity passive transmembrane transporter activity gated channel activity monoatomic ion channel activity voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity potassium channel regulator activity channel regulator activity ion channel regulator activity molecular function regulator activity transporter regulator activity monoatomic cation transmembrane transporter activity calcium-activated cation channel activity potassium ion transmembrane transporter activity potassium channel activity monoatomic ion-gated channel activity calcium-activated potassium channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity ligand-gated monoatomic cation channel activity metal ion transmembrane transporter activity	localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport multicellular organismal process system process nervous system process biological regulation action potential transmission of nerve impulse cell communication localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport multicellular organismal process system process nervous system process biological regulation action potential transmission of nerve impulse cell communication neuronal action potential cellular process regulation of biological quality regulation of membrane potential trans-synaptic signaling synaptic signaling regulation of biological process signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission regulation of tube diameter regulation of tube size regulation of system process circulatory system process regulation of blood circulation regulation of vasoconstriction vascular process in circulatory system regulation of multicellular organismal process blood vessel diameter maintenance blood circulation vasoconstriction regulation of anatomical structure size detection of stimulus response to stimulus response to metal ion response to chemical detection of chemical stimulus detection of calcium ion response to calcium ion regulation of localization cellular localization regulation of cellular process modulation of chemical synaptic transmission regulation of secretion by cell secretion by cell signal release establishment of localization in cell regulation of signaling neurotransmitter secretion regulation of transport secretion regulation of neurotransmitter transport export from cell neurotransmitter transport regulation of secretion signal release from synapse regulation of trans-synaptic signaling regulation of neurotransmitter secretion regulation of cell communication	cellular anatomical structure synapse cell junction cell periphery plasma membrane membrane 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 cellular anatomical structure synapse cell junction cell periphery plasma membrane membrane 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

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR003930	Potassium channel, calcium-activated, BK, beta subunit	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	: Q86W47	astrocytic tumor large cell medulloblastoma lung carcinoma medulloblastoma pancreatic intraductal papillary-mucinous carcinoma primitive neuroectodermal tumor atypical teratoid rhabdoid tumor lung adenocarcinoma malignant ependymoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia psoriasis glioblastoma lung cancer malignant glioma astrocytic tumor large cell medulloblastoma lung carcinoma medulloblastoma pancreatic intraductal papillary-mucinous carcinoma primitive neuroectodermal tumor atypical teratoid rhabdoid tumor lung adenocarcinoma malignant ependymoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia psoriasis glioblastoma lung cancer malignant glioma oligodendroglioma pituitary cancer subependymal giant cell astrocytoma

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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.