1KN7

Solution structure of the tandem inactivation domain (residues 1-75) of potassium channel RCK4 (Kv1.4)

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1kn7a_	Peptides	Inactivation gate of potassium and sodium channels	Inactivation gate of potassium and sodium channels	Inactivation gate of potassium and sodium channels	Potassium channel RCK4	Norway rat (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.5.600	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Potassium channel, voltage dependent, Kv1.4, tandem inactivation domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07941	Potassium channel Kv1.4 tandem inactivation domain (K_channel_TID)	Potassium channel Kv1.4 tandem inactivation domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	VOLTAGE-GATED POTASSIUM CHANNEL PROTEIN KV1.4	cation binding ion binding binding potassium ion binding alkali metal ion binding metal ion binding small molecule binding monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity monoatomic ion channel activity potassium channel activity monoatomic cation channel activity passive transmembrane transporter activity inorganic molecular entity transmembrane transporter activity cation binding ion binding binding potassium ion binding alkali metal ion binding metal ion binding small molecule binding monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity monoatomic ion channel activity potassium channel activity monoatomic cation channel activity passive transmembrane transporter 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 gated channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity voltage-gated potassium channel activity delayed rectifier potassium channel activity voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential	biological regulation regulation of biological quality regulation of presynaptic membrane potential regulation of membrane potential 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 biological regulation regulation of biological quality regulation of presynaptic membrane potential regulation of membrane potential 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 component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular component organization or biogenesis	cell periphery postsynapse postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region cellular anatomical entity synaptic membrane cell surface presynapse presynaptic membrane axon cell periphery postsynapse postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region cellular anatomical entity synaptic membrane cell surface presynapse presynaptic membrane axon cell projection main axon neuron projection axon initial segment plasma membrane bounded cell projection glutamatergic synapse 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 somatodendritic compartment dendrite dendritic tree dendritic shaft neuron spine dendritic spine neuron to neuron synapse asymmetric synapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR003972	Potassium channel, voltage dependent, Kv1	Family
A	IPR000210	BTB/POZ domain	Domain
A	IPR012897	Potassium channel, voltage dependent, Kv1.4, tandem inactivation domain	Domain
A	IPR003968	Potassium channel, voltage dependent, Kv	Family
A	IPR005821	Ion transport domain	Domain
A	IPR037065	Potassium channel, voltage dependent, Kv1.4, tandem inactivation domain superfamily	Homologous Superfamily
A	IPR003131	Potassium channel tetramerisation-type BTB domain	Domain
A	IPR020467	Potassium channel, voltage dependent, Kv1.4	Family
A	IPR011333	SKP1/BTB/POZ domain superfamily	Homologous Superfamily
A	IPR027359	Voltage-dependent channel domain superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.