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UniProtKB - O88420 (SCN8A_RAT)

Entry version 140 (29 Sep 2021)
Sequence version 1 (01 Nov 1998)
Previous versions | rss
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Protein

Sodium channel protein type 8 subunit alpha

Gene

Scn8a

Organism
Rattus norvegicus (Rat)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na+ ions may pass in accordance with their electrochemical gradient.

1 Publication

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi891 – 898ATPSequence analysis8

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionIon channel, Sodium channel, Voltage-gated channel
Biological processIon transport, Sodium transport, Transport
LigandATP-binding, Nucleotide-binding, Sodium

Enzyme and pathway databases

Reactome - a knowledgebase of biological pathways and processes

More...Reactomei		R-RNO-5576892, Phase 0 - rapid depolarisation

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Sodium channel protein type 8 subunit alpha
Alternative name(s):
Peripheral nerve protein type 4
Short name:
PN4
Sodium channel 6
Short name:
NaCh6
Sodium channel protein type VIII subunit alpha
Voltage-gated sodium channel subunit alpha Nav1.6
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:Scn8a
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiRattus norvegicus (Rat)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri10116 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Rattus
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000002494 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Unplaced

Organism-specific databases

Rat genome database

More...RGDi		3638, Scn8a

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini1 – 132CytoplasmicCuratedAdd BLAST132
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei133 – 151Helical; Name=S1 of repeat IBy similarityAdd BLAST19
Topological domaini152 – 158ExtracellularCurated7
Transmembranei159 – 179Helical; Name=S2 of repeat IBy similarityAdd BLAST21
Topological domaini180 – 193CytoplasmicCuratedAdd BLAST14
Transmembranei194 – 211Helical; Name=S3 of repeat IBy similarityAdd BLAST18
Topological domaini212 – 217ExtracellularCurated6
Transmembranei218 – 234Helical; Name=S4 of repeat IBy similarityAdd BLAST17
Topological domaini235 – 253CytoplasmicCuratedAdd BLAST19
Transmembranei254 – 273Helical; Name=S5 of repeat IBy similarityAdd BLAST20
Topological domaini274 – 355ExtracellularCuratedAdd BLAST82
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a region that is buried within a membrane, but does not cross it.<p><a href='/help/intramem' target='_top'>More...</a></p>Intramembranei356 – 380Pore-formingBy similarityAdd BLAST25
Topological domaini381 – 387ExtracellularCurated7
Transmembranei388 – 408Helical; Name=S6 of repeat IBy similarityAdd BLAST21
Topological domaini409 – 751CytoplasmicCuratedAdd BLAST343
Transmembranei752 – 770Helical; Name=S1 of repeat IIBy similarityAdd BLAST19
Topological domaini771 – 781ExtracellularCuratedAdd BLAST11
Transmembranei782 – 801Helical; Name=S2 of repeat IIBy similarityAdd BLAST20
Topological domaini802 – 815CytoplasmicCuratedAdd BLAST14
Transmembranei816 – 835Helical; Name=S3 of repeat IIBy similarityAdd BLAST20
Topological domaini836 – 837ExtracellularCurated2
Transmembranei838 – 855Helical; Name=S4 of repeat IIBy similarityAdd BLAST18
Topological domaini856 – 871CytoplasmicCuratedAdd BLAST16
Transmembranei872 – 890Helical; Name=S5 of repeat IIBy similarityAdd BLAST19
Topological domaini891 – 919ExtracellularCuratedAdd BLAST29
Intramembranei920 – 940Pore-formingBy similarityAdd BLAST21
Topological domaini941 – 953ExtracellularCuratedAdd BLAST13
Transmembranei954 – 974Helical; Name=S6 of repeat IIBy similarityAdd BLAST21
Topological domaini975 – 1197CytoplasmicCuratedAdd BLAST223
Transmembranei1198 – 1215Helical; Name=S1 of repeat IIIBy similarityAdd BLAST18
Topological domaini1216 – 1228ExtracellularCuratedAdd BLAST13
Transmembranei1229 – 1247Helical; Name=S2 of repeat IIIBy similarityAdd BLAST19
Topological domaini1248 – 1261CytoplasmicCuratedAdd BLAST14
Transmembranei1262 – 1280Helical; Name=S3 of repeat IIIBy similarityAdd BLAST19
Topological domaini1281 – 1288ExtracellularCurated8
Transmembranei1289 – 1307Helical; Name=S4 of repeat IIIBy similarityAdd BLAST19
Topological domaini1308 – 1324CytoplasmicCuratedAdd BLAST17
Transmembranei1325 – 1344Helical; Name=S5 of repeat IIIBy similarityAdd BLAST20
Topological domaini1345 – 1397ExtracellularCuratedAdd BLAST53
Intramembranei1398 – 1419Pore-formingBy similarityAdd BLAST22
Topological domaini1420 – 1436ExtracellularCuratedAdd BLAST17
Transmembranei1437 – 1458Helical; Name=S6 of repeat IIIBy similarityAdd BLAST22
Topological domaini1459 – 1521CytoplasmicCuratedAdd BLAST63
Transmembranei1522 – 1539Helical; Name=S1 of repeat IVBy similarityAdd BLAST18
Topological domaini1540 – 1550ExtracellularCuratedAdd BLAST11
Transmembranei1551 – 1569Helical; Name=S2 of repeat IVBy similarityAdd BLAST19
Topological domaini1570 – 1581CytoplasmicCuratedAdd BLAST12
Transmembranei1582 – 1599Helical; Name=S3 of repeat IVBy similarityAdd BLAST18
Topological domaini1600 – 1612ExtracellularCuratedAdd BLAST13
Transmembranei1613 – 1629Helical; Name=S4 of repeat IVBy similarityAdd BLAST17
Topological domaini1630 – 1648CytoplasmicCuratedAdd BLAST19
Transmembranei1649 – 1666Helical; Name=S5 of repeat IVBy similarityAdd BLAST18
Topological domaini1667 – 1688ExtracellularCuratedAdd BLAST22
Intramembranei1689 – 1711Pore-formingBy similarityAdd BLAST23
Topological domaini1712 – 1740ExtracellularCuratedAdd BLAST29
Transmembranei1741 – 1763Helical; Name=S6 of repeat IVBy similarityAdd BLAST23
Topological domaini1764 – 1978CytoplasmicCuratedAdd BLAST215

Keywords - Cellular componenti

Cell membrane, Cell projection, Membrane

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...ChEMBLi		CHEMBL2752

IUPHAR/BPS Guide to PHARMACOLOGY

More...GuidetoPHARMACOLOGYi		583

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00003908901 – 1978Sodium channel protein type 8 subunit alphaAdd BLAST1978

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section specifies the position and type of each covalently attached glycan group (mono-, di-, or polysaccharide).<p><a href='/help/carbohyd' target='_top'>More...</a></p>Glycosylationi215N-linked (GlcNAc...) asparagineSequence analysis1
<p>This subsection of the PTM / Processing":/help/ptm_processing_section section describes the positions of cysteine residues participating in disulfide bonds.<p><a href='/help/disulfid' target='_top'>More...</a></p>Disulfide bondi281 ↔ 333By similarity
Glycosylationi289N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi295N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi308N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi326N-linked (GlcNAc...) asparagineSequence analysis1
<p>This subsection of the 'PTM / Processing' section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei518PhosphoserineCombined sources1
Modified residuei520PhosphoserineCombined sources1
Disulfide bondi902Interchain; with SCN2B or SCN4BBy similarity
Disulfide bondi902Interchain; with the conotoxin GVIIJ (when the channel is not linked to SCN2B or SCN4B; the bond to SCN2B or SCN4B protects the channel from the inhibition by toxin)By similarity
Disulfide bondi942 ↔ 951By similarity
Glycosylationi1356N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi1370N-linked (GlcNAc...) asparagineSequence analysis1
Glycosylationi1381N-linked (GlcNAc...) asparagineSequence analysis1
Modified residuei1495Phosphoserine; by PKCBy similarity1

<p>This subsection of the <a href="http://www.uniprot.org/help/ptm_processing_section">PTM/processing</a> section describes post-translational modifications (PTMs). This subsection <strong>complements</strong> the information provided at the sequence level or describes modifications for which <strong>position-specific data is not yet available</strong>.<p><a href='/help/post-translational_modification' target='_top'>More...</a></p>Post-translational modificationi

May be ubiquitinated by NEDD4L; which would promote its endocytosis.By similarity
Phosphorylation at Ser-1495 by PKC in a highly conserved cytoplasmic loop slows inactivation of the sodium channel and reduces peak sodium currents.By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein, Phosphoprotein, Ubl conjugation

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...PaxDbi		O88420

PRoteomics IDEntifications database

More...PRIDEi		O88420

PTM databases

CarbonylDB database of protein carbonylation sites

More...CarbonylDBi		O88420

GlyGen: Computational and Informatics Resources for Glycoscience

More...GlyGeni		O88420, 8 sites

iPTMnet integrated resource for PTMs in systems biology context

More...iPTMneti		O88420

Comprehensive resource for the study of protein post-translational modifications (PTMs) in human, mouse and rat.

More...PhosphoSitePlusi		O88420

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the 'Expression' section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified 'at protein level'.<br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Isoform 1 is highly expressed in brain, moderately in spinal cord, and at low levels in dorsal root ganglia, nodose ganglia and superior cervical ganglia. Not detected in sciatic nerve and non-neuronal tissues. Isoform 2 is hardly detectable, if at all, in brain, expressed at low levels in spinal cord and at highest levels in dorsal root ganglia.1 Publication

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

The voltage-sensitive sodium channel consists of an ion conducting pore forming alpha-subunit regulated by one or more beta-1 (SCN1B), beta-2 (SCN2B), beta-3 (SCN3B) and/or beta-4 (SCN4B). Beta-1 (SCN1B) and beta-3 (SCN3B) are non-covalently associated with alpha, while beta-2 (SCN2B) and beta-4 (SCN4B) are covalently linked by disulfide bonds.

Interacts with NEDD4 and NEDD4L (By similarity).

Interacts with FGF13 (PubMed:15282281).

Interacts with FGF14, GBG3, GBB2 and SCN1B (By similarity).

Interacts with the conotoxin GVIIJ (PubMed:24497506).

Interacts with CALM1; the interaction modulates the inactivation rate of SCN8A (By similarity).

By similarity2 Publications

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...BioGRIDi		248327, 2 interactors

STRING: functional protein association networks

More...STRINGi		10116.ENSRNOP00000008160

Chemistry databases

BindingDB database of measured binding affinities

More...BindingDBi		O88420

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

Biological Magnetic Resonance Data Bank

More...BMRBi		O88420

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...SMRi		O88420

Database of comparative protein structure models

More...ModBasei		Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section indicates the positions and types of repeated sequence motifs or repeated domains within the protein.<p><a href='/help/repeat' target='_top'>More...</a></p>Repeati114 – 442ICuratedAdd BLAST329
Repeati733 – 1005IICuratedAdd BLAST273
Repeati1178 – 1493IIICuratedAdd BLAST316
Repeati1502 – 1799IVCuratedAdd BLAST298
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini1893 – 1922IQPROSITE-ProRule annotationAdd BLAST30

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni1 – 20DisorderedSequence analysisAdd BLAST20
Regioni28 – 62DisorderedSequence analysisAdd BLAST35
Regioni446 – 530DisorderedSequence analysisAdd BLAST85
Regioni576 – 597DisorderedSequence analysisAdd BLAST22
Regioni1105 – 1146DisorderedSequence analysisAdd BLAST42
Regioni1923 – 1978DisorderedSequence analysisAdd BLAST56

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular type of amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi28 – 57Basic and acidic residuesSequence analysisAdd BLAST30
Compositional biasi500 – 530Basic and acidic residuesSequence analysisAdd BLAST31
Compositional biasi1114 – 1129Basic and acidic residuesSequence analysisAdd BLAST16
Compositional biasi1948 – 1978Basic and acidic residuesSequence analysisAdd BLAST31

<p>This subsection of the 'Family and domains' section provides general information on the biological role of a domain. The term 'domain' is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

The sequence contains 4 internal repeats, each with 5 hydrophobic segments (S1, S2, S3, S5, S6) and one positively charged segment (S4). Segments S4 are probably the voltage-sensors and are characterized by a series of positively charged amino acids at every third position.Curated

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the sodium channel (TC 1.A.1.10) family. Nav1.6/SCN8A subfamily. [View classification]Curated

Keywords - Domaini

Repeat, Transmembrane, Transmembrane helix

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...eggNOGi		KOG2301, Eukaryota

InParanoid: Eukaryotic Ortholog Groups

More...InParanoidi		O88420

Database of Orthologous Groups

More...OrthoDBi		172471at2759

Database for complete collections of gene phylogenies

More...PhylomeDBi		O88420

Family and domain databases

Conserved Domains Database

More...CDDi		cd13433, Na_channel_gate, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		1.20.120.350, 4 hits

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR005821, Ion_trans_dom
IPR000048, IQ_motif_EF-hand-BS
IPR008054, Na_channel_a8su
IPR001696, Na_channel_asu
IPR044564, Na_chnl_inactivation_gate
IPR010526, Na_trans_assoc
IPR024583, Na_trans_cytopl
IPR043203, VGCC_Ca_Na
IPR027359, Volt_channel_dom_sf

The PANTHER Classification System

More...PANTHERi		PTHR10037, PTHR10037, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF00520, Ion_trans, 4 hits
PF00612, IQ, 1 hit
PF06512, Na_trans_assoc, 1 hit
PF11933, Na_trans_cytopl, 1 hit

Protein Motif fingerprint database; a protein domain database

More...PRINTSi		PR00170, NACHANNEL
PR01667, NACHANNEL8

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00015, IQ, 1 hit

PROSITE; a protein domain and family database

More...PROSITEi		View protein in PROSITE
PS50096, IQ, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequences (2+)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

This entry describes 2 <p>This subsection of the 'Sequence' section lists the alternative protein sequences (isoforms) that can be generated from the same gene by a single or by the combination of up to four biological events (alternative promoter usage, alternative splicing, alternative initiation and ribosomal frameshifting). Additionally, this section gives relevant information on each alternative protein isoform.<p><a href='/help/alternative_products' target='_top'>More...</a></p> isoformsi produced by alternative splicing. AlignAdd to basket

This entry has 2 described isoforms and 2 potential isoforms that are computationally mapped.Show allAlign All

Isoform 1 (identifier: O88420-1) [UniParc]FASTAAdd to basket
Also known as: PN4

This isoform has been chosen as the <div> <p><b>What is the canonical sequence?</b><p><a href='/help/canonical_and_isoforms' target='_top'>More...</a></p>canonicali sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide
        10         20         30         40         50
MAARLLAPPG PDSFKPFTPE SLANIERRIA ESKLKKPPKA DGSHREDDED 
        60         70         80         90        100
SKPKPNSDLE AGKSLPFIYG DIPQGLVAVP LEDFDPYYLT QKTFVVLNRG 
       110        120        130        140        150
KTLFRFSATP ALYILSPFNL IRRIAIKILI HSVFSMIIMC TILTNCVFMT 
       160        170        180        190        200
FSNPPEWSKN VEYTFTGIYT FESLVKIIAR GFCIDGFTFL RDPWNWLDFS 
       210        220        230        240        250
VIMMAYVTEF VDLGNVSALR TFRVLRALKT ISVIPGLKTI VGALIQSVKK 
       260        270        280        290        300
LSDVMILTVF CLSVFALIGL QLFMGNLRNK CVVWPINFNE SYLENGTRGF 
       310        320        330        340        350
DWEEYINNKT NFYMVPGMLE PLLCGNSSDA GQCPEGFQCM KAGRNPNYGY 
       360        370        380        390        400
TSFDTFSWAF LALFRLMTQD YWENLYQLTL RAAGKTYMIF FVLVIFVGSF 
       410        420        430        440        450
YLVNLILAVV AMAYEEQNQA TLEEAEQKEA EFKAMLEQLK KQQEEAQAAA 
       460        470        480        490        500
MATSAGTVSE DAIEEEGEDG VGSPRSSSEL SKLSSKSAKE RRNRRKKRKQ 
       510        520        530        540        550
KELSEGEEKG DPEKVFKSES EDGMRRKAFR LPDNRIGRKF SIMNQSLLSI 
       560        570        580        590        600
PGSPFLSRHN SKSSIFSFRG PGRFRDPGSE NEFADDEHST VEESEGRRDS 
       610        620        630        640        650
LFIPIRARER RSSYSGYSGY SQCSRSSRIF PSLRRSVKRN STVDCNGVVS 
       660        670        680        690        700
LIGPGSHIGR LLPEATTEVE IKKKGPGSLL VSMDQLASYG RKDRINSIMS 
       710        720        730        740        750
VVTNTLVEEL EESQRKCPPC WYKFANTFLI WECHPYWIKL KEIVNLIVMD 
       760        770        780        790        800
PFVDLAITIC IVLNTLFMAM EHHPMTPQFE HVLAVGNLVF TGIFTAEMFL 
       810        820        830        840        850
KLIAMDPYYY FQEGWNIFDG FIVSLSLMEL SLADVEGLSV LRSFRLLRVF 
       860        870        880        890        900
KLAKSWPTLN MLIKIIGNSV GALGNLTLVL AIIVFIFAVV GMQLFGKSYK 
       910        920        930        940        950
ECVCKINQEC KLPRWHMNDF FHSFLIVFRV LCGEWIETMW DCMEVAGQAM 
       960        970        980        990       1000
CLIVFMMVMV IGNLVVLNLF LALLLSSFSA DNLAATDDDG EMNNLQISVI 
      1010       1020       1030       1040       1050
RIKKGVAWTK VKVHAFMQAH FKQREADEVK PLDELYEKKA NCIANHTGVD 
      1060       1070       1080       1090       1100
IHRNGDFQKN GNGTTSGIGS SVEKYIIDED HMSFINNPNL TVRVPIAVGE 
      1110       1120       1130       1140       1150
SDFENLNTED VSSESDPEGS KDKLDDTSSS EGSTIDIKPE VEEVPVEQPE 
      1160       1170       1180       1190       1200
EYLDPDACFT EGCVQRFKCC QVNIEEGLGK SWWILRKTCF LIVEHNWFET 
      1210       1220       1230       1240       1250
FIIFMILLSS GALAFEDIYI EQRKTIRTIL EYADKVFTYI FILEMLLKWT 
      1260       1270       1280       1290       1300
AYGFVKFFTN AWCWLDFLIV AVSLVSLIAN ALGYSELGAI KSLRTLRALR 
      1310       1320       1330       1340       1350
PLRALSRFEG MRVVVNALVG AIPSIMNVLL VCLIFWLIFS IMGVNLFAGK 
      1360       1370       1380       1390       1400
YHYCFNETSE IRFEIDIVNN KTDCEKLMEG NSTEIRWKNV KINFDNVGAG 
      1410       1420       1430       1440       1450
YLALLQVATF KGWMDIMYAA VDSRKPDEQP DYEGNIYMYI YFVIFIIFGS 
      1460       1470       1480       1490       1500
FFTLNLFIGV IIDNFNQQKK KFGGQDIFMT EEQKKYYNAM KKLGSKKPQK 
      1510       1520       1530       1540       1550
PIPRPLNKIQ GIVFDFVTQQ AFDIVIMMLI CLNMVTMMVE TDTQSKQMEN 
      1560       1570       1580       1590       1600
ILYWINLVFV IFFTCECVLK MFALRHYYFT IGWNIFDFVV VILSIVGMFL 
      1610       1620       1630       1640       1650
ADIIEKYFVS PTLFRVIRLA RIGRILRLIK GAKGIRTLLF ALMMSLPALF 
      1660       1670       1680       1690       1700
NIGLLLFLVM FIFSIFGMSN FAYVKHEAGI DDMFNFETFG NSMICLFQIT 
      1710       1720       1730       1740       1750
TSAGWDGLLL PILNRPPDCS LDKEHPGSGF KGDCGNPSVG IFFFVSYIII 
      1760       1770       1780       1790       1800
SFLIVVNMYI AIILENFSVA TEESADPLSE DDFETFYEIW EKFDPDATQF 
      1810       1820       1830       1840       1850
IEYCKLADFA DALEHPLRVP KPNTIELIAM DLPMVSGDRI HCLDILFAFT 
      1860       1870       1880       1890       1900
KRVLGDSGEL DILRQQMEER FVASNPSKVS YEPITTTLRR KQEEVSAVVL 
      1910       1920       1930       1940       1950
QRAYRGHLAR RGFICRKMAS NKLENGGTHR DKKESTPSTA SLPSYDSVTK 
      1960       1970 
PDKEKQQRAE EGRRERAKRQ KEVRESKC
Length:1,978
Mass (Da):225,159
Last modified:November 1, 1998 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i9160843C5935B88B
GO
Isoform 2 (identifier: O88420-2) [UniParc]FASTAAdd to basket
Also known as: PN4a

The sequence of this isoform differs from the canonical sequence as follows:
     664-664: E → EVKIDKAATDS

Note: May be due to competing donor splice site.Curated
Show »
Length:1,988
Mass (Da):226,188
Checksum:iC1F7D87FDC266C8F
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There are 2 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
F1LMH2F1LMH2_RAT
Sodium channel protein
Scn8a
1,978Annotation score:

Annotation score:2 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
A0A0G2KB93A0A0G2KB93_RAT
Sodium channel protein
Scn8a
1,977Annotation score:

Annotation score:2 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Sequence' section describes the sequence of naturally occurring alternative protein isoform(s). The changes in the amino acid sequence may be due to alternative splicing, alternative promoter usage, alternative initiation, or ribosomal frameshifting.<p><a href='/help/var_seq' target='_top'>More...</a></p>Alternative sequenceiVSP_038652664E → EVKIDKAATDS in isoform 2. 1 Publication1

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
AF049239 mRNA Translation: AAC26014.1
AF049240 mRNA Translation: AAC26015.1

NCBI Reference Sequences

More...RefSeqi		NP_062139.2, NM_019266.2 [O88420-1]

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...GeneIDi		29710

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...KEGGi		rno:29710

UCSC genome browser

More...UCSCi		RGD:3638, rat [O88420-1]

Keywords - Coding sequence diversityi

Alternative splicing

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF049239 mRNA Translation: AAC26014.1
AF049240 mRNA Translation: AAC26015.1
RefSeqiNP_062139.2, NM_019266.2 [O88420-1]

3D structure databases

BMRBiO88420
SMRiO88420
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi248327, 2 interactors
STRINGi10116.ENSRNOP00000008160

Chemistry databases

BindingDBiO88420
ChEMBLiCHEMBL2752
GuidetoPHARMACOLOGYi583

PTM databases

CarbonylDBiO88420
GlyGeniO88420, 8 sites
iPTMnetiO88420
PhosphoSitePlusiO88420

Proteomic databases

PaxDbiO88420
PRIDEiO88420

Protocols and materials databases

ABCD curated depository of sequenced antibodies

More...ABCDi		O88420, 1 sequenced antibody

Genome annotation databases

GeneIDi29710
KEGGirno:29710
UCSCiRGD:3638, rat [O88420-1]

Organism-specific databases

Comparative Toxicogenomics Database

More...CTDi		6334
RGDi3638, Scn8a

Phylogenomic databases

eggNOGiKOG2301, Eukaryota
InParanoidiO88420
OrthoDBi172471at2759
PhylomeDBiO88420

Enzyme and pathway databases

ReactomeiR-RNO-5576892, Phase 0 - rapid depolarisation

Miscellaneous databases

Protein Ontology

More...PROi		PR:O88420

Family and domain databases

CDDicd13433, Na_channel_gate, 1 hit
Gene3Di1.20.120.350, 4 hits
InterProiView protein in InterPro
IPR005821, Ion_trans_dom
IPR000048, IQ_motif_EF-hand-BS
IPR008054, Na_channel_a8su
IPR001696, Na_channel_asu
IPR044564, Na_chnl_inactivation_gate
IPR010526, Na_trans_assoc
IPR024583, Na_trans_cytopl
IPR043203, VGCC_Ca_Na
IPR027359, Volt_channel_dom_sf
PANTHERiPTHR10037, PTHR10037, 1 hit
PfamiView protein in Pfam
PF00520, Ion_trans, 4 hits
PF00612, IQ, 1 hit
PF06512, Na_trans_assoc, 1 hit
PF11933, Na_trans_cytopl, 1 hit
PRINTSiPR00170, NACHANNEL
PR01667, NACHANNEL8
SMARTiView protein in SMART
SM00015, IQ, 1 hit
PROSITEiView protein in PROSITE
PS50096, IQ, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiSCN8A_RAT
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: O88420
Secondary accession number(s): O88421
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 19, 2010
Last sequence update: November 1, 1998
Last modified: September 29, 2021
This is version 140 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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