Annotations: 7UKH

Human Kv4.2-KChIP2-DPP6 channel complex in an open state, intracellular region

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: mpstruc

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
H [auth L]	prok_STING	e7ukhL1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: prok_STING	ECOD (v295)
G [auth K]	prok_STING	e7ukhK1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: prok_STING	ECOD (v295)
F [auth J]	prok_STING	e7ukhJ1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: prok_STING	ECOD (v295)
E [auth I]	prok_STING	e7ukhI1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F: prok_STING	ECOD (v295)
B	Uteroglobin	e7ukhB1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Uteroglobin	ECOD (v295)
C	Uteroglobin	e7ukhC1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Uteroglobin	ECOD (v295)
D	Uteroglobin	e7ukhD1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Uteroglobin	ECOD (v295)
A	Uteroglobin	e7ukhA1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Uteroglobin	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (utative)
C	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (utative)
D	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (utative)
A	3.30.710.10	Alpha Beta	2-Layer Sandwich	Potassium Channel Kv1.1	Chain A	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E [auth I], F [auth J], G [auth K], H [auth L]	PF13833	EF-hand domain pair (EF-hand_8)	EF-hand domain pair		Domain
E [auth I], F [auth J], G [auth K], H [auth L]	PF13499	EF-hand domain pair (EF-hand_7)	EF-hand domain pair		Domain
A, B, C, D	PF02214	BTB/POZ domain (BTB_2)	BTB/POZ domain	In voltage-gated K+ channels this domain is responsible for subfamily-specific assembly of alpha-subunits into functional tetrameric channels [1]. In KCTD1 (Swiss:Q719H9) this domain functions as a transcriptional repressor [2]. It also mediates homo ...	In voltage-gated K+ channels this domain is responsible for subfamily-specific assembly of alpha-subunits into functional tetrameric channels [1]. In KCTD1 (Swiss:Q719H9) this domain functions as a transcriptional repressor [2]. It also mediates homomultimerisation of KCTD1 and interaction of KCTD1 with the transcription factor AP-2-alpha [2-3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth I], F [auth J], G [auth K], H [auth L]	Isoform 2 of Kv channel-interacting protein 2	cation binding ion binding binding calcium 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 channel activity monoatomic ion transmembrane transporter activity cation binding ion binding binding calcium 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 channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity signal sequence receptor activity ER lumen protein retrieval receptor activity protein binding transmembrane transporter binding protein-containing complex binding potassium channel regulator activity channel regulator activity ion channel regulator activity molecular function regulator activity transporter regulator activity identical protein binding	heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation regulation of multicellular organismal process heart contraction blood circulation membrane repolarization regulation of membrane repolarization heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation regulation of multicellular organismal process heart contraction blood circulation membrane repolarization regulation of membrane repolarization regulation of biological quality regulation of membrane potential cellular response to stimulus regulation of signaling regulation of cellular process response to stimulus signaling regulation of signal transduction cell communication regulation of response to stimulus regulation of cell communication cellular process signal transduction action potential 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 localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport trans-synaptic signaling synaptic signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission cardiac muscle cell membrane repolarization membrane repolarization during cardiac muscle cell action potential cardiac muscle cell action potential membrane repolarization during action potential muscle contraction muscle system process regulation of localization regulation of potassium ion transport monoatomic ion transmembrane transport potassium ion transmembrane transport regulation of monoatomic ion transmembrane transport export across plasma membrane potassium ion export across plasma membrane monoatomic cation transmembrane transport regulation of metal ion transport regulation of transport regulation of monoatomic ion transport export from cell regulation of potassium ion transmembrane transport transmembrane transport regulation of transmembrane transport regulation of potassium ion export across plasma membrane regulation of monoatomic cation transmembrane transport positive regulation of cation transmembrane transport positive regulation of biological process positive regulation of monoatomic ion transport positive regulation of potassium ion export across plasma membrane positive regulation of transmembrane transport positive regulation of monoatomic ion transmembrane transport positive regulation of cellular process positive regulation of potassium ion transport positive regulation of transport positive regulation of potassium ion transmembrane transport detection of stimulus response to metal ion response to chemical detection of chemical stimulus detection of calcium ion response to calcium ion	cell periphery cellular anatomical structure plasma membrane membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection intracellular anatomical structure cytoplasm voltage-gated potassium channel complex protein-containing complex cell periphery cellular anatomical structure plasma membrane membrane somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection intracellular anatomical structure cytoplasm 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
A, B, C, D	Potassium voltage-gated channel subfamily D member 2	monoatomic cation transmembrane transporter activity A-type (transient outward) potassium channel activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity outward rectifier potassium channel 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 monoatomic cation transmembrane transporter activity A-type (transient outward) potassium channel activity gated channel activity monoatomic ion channel activity potassium ion transmembrane transporter activity outward rectifier potassium channel 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 voltage-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential cation binding ion binding binding metal ion binding small molecule binding	heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation regulation of multicellular organismal process heart contraction blood circulation transport monoatomic ion transmembrane transport heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation regulation of multicellular organismal process heart contraction blood circulation 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 action potential regulation of biological quality regulation of membrane potential response to decreased oxygen levels cellular response to stimulus response to stimulus cellular response to oxygen levels cellular response to hypoxia cellular response to decreased oxygen levels cellular response to chemical stimulus cellular response to stress response to hypoxia response to stress response to chemical response to oxygen levels response to abiotic stimulus membrane repolarization nervous system process transmission of nerve impulse cell communication neuronal action potential trans-synaptic signaling synaptic signaling signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission behavior rhythmic process circadian behavior locomotory behavior rhythmic behavior circadian rhythm locomotor rhythm muscle contraction muscle system process sensory perception sensory perception of pain 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 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 anchoring junction postsynaptic specialization membrane postsynaptic specialization organelle GABA-ergic synapse 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 neuron spine neuron projection dendritic spine plasma membrane bounded cell projection cell projection dendrite dendritic tree neuronal cell body membrane cell body membrane membrane microdomain membrane raft plasma membrane raft

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth I], F [auth J], G [auth K], H [auth L]	IPR002048	EF-hand domain	Domain
E [auth I], F [auth J], G [auth K], H [auth L]	IPR011992	EF-hand domain pair	Homologous Superfamily
E [auth I], F [auth J], G [auth K], H [auth L]	IPR028846	Recoverin family	Family
E [auth I], F [auth J], G [auth K], H [auth L]	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A, B, C, D	IPR021645	Shal-type voltage-gated potassium channels, N-terminal	Domain
A, B, C, D	IPR028325	Voltage-gated potassium channel	Family
A, B, C, D	IPR000210	BTB/POZ domain	Domain
A, B, C, D	IPR024587	Potassium channel, voltage dependent, Kv4, C-terminal	Domain
A, B, C, D	IPR003968	Potassium channel, voltage dependent, Kv	Family
A, B, C, D	IPR003975	Potassium channel, voltage dependent, Kv4	Family
A, B, C, D	IPR005821	Ion transport domain	Domain
A, B, C, D	IPR004055	Potassium channel, voltage dependent, Kv4.2	Family
A, B, C, D	IPR003131	Potassium channel tetramerisation-type BTB domain	Domain
A, B, C, D	IPR011333	SKP1/BTB/POZ domain superfamily	Homologous Superfamily
A, B, C, D	IPR027359	Voltage-dependent channel domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
E [auth I], F [auth J], G [auth K], H [auth L]	: Q9NS61	atrial fibrillation breast fibroadenoma glioblastoma malignant glioma Pick disease atypical teratoid rhabdoid tumor congestive heart failure invasive ductal breast carcinoma medulloblastoma type 2 diabetes mellitus breast carcinoma ductal breast carcinoma in situ malignant ependymoma oligodendroglioma
A, B, C, D	: Q9NZV8	attention deficit hyperactivity disorder, inattentive type epilepsy large cell medulloblastoma malignant mesothelioma pituitary cancer subependymal giant cell astrocytoma atypical teratoid rhabdoid tumor invasive ductal breast carcinoma lung cancer medulloblastoma psoriasis breast fibroadenoma Lambert-Eaton myasthenic syndrome malignant ependymoma multiple sclerosis attention deficit hyperactivity disorder, inattentive type epilepsy large cell medulloblastoma malignant mesothelioma pituitary cancer subependymal giant cell astrocytoma atypical teratoid rhabdoid tumor invasive ductal breast carcinoma lung cancer medulloblastoma psoriasis breast fibroadenoma Lambert-Eaton myasthenic syndrome malignant ependymoma multiple sclerosis Sjogren syndrome

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D, E [auth I] A, B, C, D, E [auth I], F [auth J], G [auth K], H [auth L]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Potassium, Sodium, & Proton Ion-Selective	K_v4.2 Voltage-gated potassium Channel, in complex with KChIP2, TM region, open state

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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.