Annotations: 1QG9

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1qg9a_	Peptides	Transmembrane helical fragments	Transmembrane helical fragments	Transmembrane helical fragments	Second repeat (is2mic) from voltage-gated sodium channel	( ) [TaxId: ], (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEIN (SODIUM CHANNEL PROTEIN, BRAIN II ALPHA SUBUNIT)	monoatomic cation transmembrane transporter activity voltage-gated sodium channel activity monoatomic ion channel activity sodium channel activity sodium ion transmembrane transporter activity monoatomic cation channel activity passive transmembrane transporter 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 monoatomic cation transmembrane transporter activity voltage-gated sodium channel activity monoatomic ion channel activity sodium channel activity sodium ion transmembrane transporter activity monoatomic cation channel activity passive transmembrane transporter 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 calmodulin binding cation binding ion binding alkali metal ion binding sodium ion binding metal ion binding small molecule binding	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 cellular response to stimulus cellular response to antibiotic cellular response to chemical stimulus 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 cellular response to stimulus cellular response to antibiotic cellular response to chemical stimulus response to stimulus response to chemical response to antibiotic developmental process multicellular organism development anatomical structure development nervous system development system development membrane depolarization during action potential membrane depolarization response to pyrethroid response to insecticide response to toxic substance behavior response to stress multicellular organismal response to stress response to pain behavioral response to pain transport monoatomic ion transmembrane transport sodium 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 monoatomic cation transport sodium ion transport	membrane cellular anatomical entity protein-containing complex sodium channel complex voltage-gated sodium channel complex plasma membrane protein complex plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex monoatomic ion channel complex somatodendritic compartment membrane cellular anatomical entity protein-containing complex sodium channel complex voltage-gated sodium channel complex plasma membrane protein complex plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex monoatomic ion channel complex somatodendritic compartment cell body neuronal cell body axon cell projection neuron projection plasma membrane bounded cell projection sarcoplasm intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR005821	Ion transport domain	Domain
A	IPR024583	Voltage-gated Na+ ion channel, cytoplasmic domain	Domain
A	IPR001696	Voltage gated sodium channel, alpha subunit	Family
A	IPR044564	Voltage-gated sodium channel alpha subunit, inactivation gate	Domain
A	IPR010526	Sodium ion transport-associated domain	Domain
A	IPR043203	Voltage-gated cation channel calcium and sodium	Family
A	IPR027359	Voltage-dependent channel domain superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Peptides	Alpha-helical peptides	Peptides of transmembrane proteins	Voltage-gated channel peptides

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.