Annotations: 4F8A

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	cNMP_binding_1	e4f8aA1	A: beta sandwiches	X: jelly-roll	H: Double-stranded beta-helix (From Topology)	T: Double-stranded beta-helix	F: cNMP_binding_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.10	Mainly Beta	Sandwich	Jelly Rolls	Jelly Rolls	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00027	Cyclic nucleotide-binding domain (cNMP_binding)	Cyclic nucleotide-binding domain	This domain sensor domain can bind cAMP, cGMP, c-di-GMP, oxygen and 2-oxoglutarate (Matilla et. al., FEMS Microbiology Reviews, fuab043, 45, 2021, 1. https://doi.org/10.1093/femsre/fuab043).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Potassium voltage-gated channel subfamily H 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 protein binding binding 14-3-3 protein binding voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential transmembrane transporter binding kinase binding enzyme binding protein kinase binding protein-containing complex binding calmodulin binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding identical protein binding	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 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 metal ion cellular response to chemical stimulus response to stimulus response to metal ion response to chemical cellular response to calcium ion response to calcium ion startle response multicellular organismal process system process nervous system process neuromuscular process response to external stimulus biological regulation regulation of biological quality regulation of membrane potential regulation of biological process cell population proliferation regulation of cellular process regulation of cell population proliferation inorganic ion homeostasis intracellular calcium ion homeostasis homeostatic process calcium ion homeostasis regulation of cytosolic calcium ion concentration regulation of presynaptic cytosolic calcium ion concentration cellular homeostasis neuron cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis regulation of localization cellular localization regulated exocytosis modulation of chemical synaptic transmission signaling synaptic vesicle cycle synaptic vesicle exocytosis vesicle-mediated transport cell communication vesicle-mediated transport in synapse regulation of regulated secretory pathway synaptic signaling regulation of secretion by cell secretion by cell signal release establishment of localization in cell trans-synaptic signaling regulation of signaling neurotransmitter secretion regulation of transport secretion regulation of neurotransmitter transport regulation of synaptic vesicle exocytosis export from cell cell-cell signaling neurotransmitter transport regulation of vesicle-mediated transport regulation of secretion chemical synaptic transmission signal release from synapse regulation of trans-synaptic signaling exocytosis regulation of neurotransmitter secretion anterograde trans-synaptic signaling regulation of exocytosis regulation of cell communication	postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane cellular anatomical entity postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse neuron to neuron synapse organelle cell junction postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane cellular anatomical entity postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse neuron to neuron synapse organelle cell junction postsynaptic membrane asymmetric synapse plasma membrane region somatodendritic compartment cell body perikaryon neuronal cell body cell surface parallel fiber to Purkinje cell synapse excitatory synapse presynapse presynaptic membrane cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection 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 membrane-bounded organelle endosome membrane intracellular anatomical structure early endosome endosome intracellular vesicle early endosome membrane intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane cytoplasm vesicle organelle membrane perinuclear region of cytoplasm axon cell leading edge axolemma leading edge membrane neuron projection membrane main axon cell projection membrane organelle inner membrane nuclear membrane nucleus organelle envelope nuclear inner membrane nuclear envelope

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR003949	Potassium channel, voltage-dependent, EAG	Family
A	IPR014710	RmlC-like jelly roll fold	Homologous Superfamily
A	IPR000700	PAS-associated, C-terminal	Domain
A	IPR005821	Ion transport domain	Domain
A	IPR003938	Potassium channel, voltage-dependent, EAG/ELK/ERG-like	Family
A	IPR000014	PAS domain	Domain
A	IPR000595	Cyclic nucleotide-binding domain	Domain
A	IPR035965	PAS domain superfamily	Homologous Superfamily
A	IPR001610	PAC motif	Repeat
A	IPR050818	Potassium channel, voltage-dependent, EAG/ELK/ERG-like, animal-type	Family
A	IPR018490	Cyclic nucleotide-binding domain superfamily	Homologous Superfamily

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.