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SCN8A_RAT
ID   SCN8A_RAT               Reviewed;        1978 AA.
AC   O88420; O88421;
DT   19-JAN-2010, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1998, sequence version 1.
DT   03-AUG-2022, entry version 143.
DE   RecName: Full=Sodium channel protein type 8 subunit alpha;
DE   AltName: Full=Peripheral nerve protein type 4;
DE            Short=PN4;
DE   AltName: Full=Sodium channel 6;
DE            Short=NaCh6;
DE   AltName: Full=Sodium channel protein type VIII subunit alpha;
DE   AltName: Full=Voltage-gated sodium channel subunit alpha Nav1.6;
GN   Name=Scn8a;
OS   Rattus norvegicus (Rat).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae;
OC   Murinae; Rattus.
OX   NCBI_TaxID=10116;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1 AND 2), FUNCTION, SUBCELLULAR
RP   LOCATION, AND TISSUE SPECIFICITY.
RC   TISSUE=Spinal ganglion;
RX   PubMed=9603190; DOI=10.1046/j.1471-4159.1998.70062262.x;
RA   Dietrich P.S., McGivern J.G., Delgado S.G., Koch B.D., Eglen R.M.,
RA   Hunter J.C., Sangameswaran L.;
RT   "Functional analysis of a voltage-gated sodium channel and its splice
RT   variant from rat dorsal root ganglia.";
RL   J. Neurochem. 70:2262-2272(1998).
RN   [2]
RP   INTERACTION WITH FGF13.
RX   PubMed=15282281; DOI=10.1523/jneurosci.1628-04.2004;
RA   Wittmack E.K., Rush A.M., Craner M.J., Goldfarb M., Waxman S.G.,
RA   Dib-Hajj S.D.;
RT   "Fibroblast growth factor homologous factor 2B: association with Nav1.6 and
RT   selective colocalization at nodes of Ranvier of dorsal root axons.";
RL   J. Neurosci. 24:6765-6775(2004).
RN   [3]
RP   PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-518 AND SER-520, AND
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RX   PubMed=22673903; DOI=10.1038/ncomms1871;
RA   Lundby A., Secher A., Lage K., Nordsborg N.B., Dmytriyev A., Lundby C.,
RA   Olsen J.V.;
RT   "Quantitative maps of protein phosphorylation sites across 14 different rat
RT   organs and tissues.";
RL   Nat. Commun. 3:876-876(2012).
RN   [4]
RP   INTERACTION WITH THE CONOTOXIN GVIIJ.
RX   PubMed=24497506; DOI=10.1073/pnas.1324189111;
RA   Gajewiak J., Azam L., Imperial J., Walewska A., Green B.R.,
RA   Bandyopadhyay P.K., Raghuraman S., Ueberheide B., Bern M., Zhou H.M.,
RA   Minassian N.A., Hagan R.H., Flinspach M., Liu Y., Bulaj G., Wickenden A.D.,
RA   Olivera B.M., Yoshikami D., Zhang M.M.;
RT   "A disulfide tether stabilizes the block of sodium channels by the
RT   conotoxin muO[section sign]-GVIIJ.";
RL   Proc. Natl. Acad. Sci. U.S.A. 111:2758-2763(2014).
CC   -!- FUNCTION: Mediates the voltage-dependent sodium ion permeability of
CC       excitable membranes. Assuming opened or closed conformations in
CC       response to the voltage difference across the membrane, the protein
CC       forms a sodium-selective channel through which Na(+) ions may pass in
CC       accordance with their electrochemical gradient.
CC       {ECO:0000269|PubMed:9603190}.
CC   -!- SUBUNIT: The voltage-sensitive sodium channel consists of an ion
CC       conducting pore forming alpha-subunit regulated by one or more beta-1
CC       (SCN1B), beta-2 (SCN2B), beta-3 (SCN3B) and/or beta-4 (SCN4B). Beta-1
CC       (SCN1B) and beta-3 (SCN3B) are non-covalently associated with alpha,
CC       while beta-2 (SCN2B) and beta-4 (SCN4B) are covalently linked by
CC       disulfide bonds. Interacts with NEDD4 and NEDD4L (By similarity).
CC       Interacts with FGF13 (PubMed:15282281). Interacts with FGF14, GBG3,
CC       GBB2 and SCN1B (By similarity). Interacts with the conotoxin GVIIJ
CC       (PubMed:24497506). Interacts with CALM1; the interaction modulates the
CC       inactivation rate of SCN8A (By similarity).
CC       {ECO:0000250|UniProtKB:Q9UQD0, ECO:0000250|UniProtKB:Q9WTU3,
CC       ECO:0000269|PubMed:15282281, ECO:0000269|PubMed:24497506}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000269|PubMed:9603190};
CC       Multi-pass membrane protein {ECO:0000250|UniProtKB:D0E0C2}. Cell
CC       projection, axon {ECO:0000250|UniProtKB:Q9WTU3}. Note=Mainly localizes
CC       to the axon initial segment. {ECO:0000250|UniProtKB:Q9WTU3}.
CC   -!- ALTERNATIVE PRODUCTS:
CC       Event=Alternative splicing; Named isoforms=2;
CC       Name=1; Synonyms=PN4;
CC         IsoId=O88420-1; Sequence=Displayed;
CC       Name=2; Synonyms=PN4a;
CC         IsoId=O88420-2; Sequence=VSP_038652;
CC   -!- TISSUE SPECIFICITY: Isoform 1 is highly expressed in brain, moderately
CC       in spinal cord, and at low levels in dorsal root ganglia, nodose
CC       ganglia and superior cervical ganglia. Not detected in sciatic nerve
CC       and non-neuronal tissues. Isoform 2 is hardly detectable, if at all, in
CC       brain, expressed at low levels in spinal cord and at highest levels in
CC       dorsal root ganglia. {ECO:0000269|PubMed:9603190}.
CC   -!- DOMAIN: The sequence contains 4 internal repeats, each with 5
CC       hydrophobic segments (S1, S2, S3, S5, S6) and one positively charged
CC       segment (S4). Segments S4 are probably the voltage-sensors and are
CC       characterized by a series of positively charged amino acids at every
CC       third position. {ECO:0000305}.
CC   -!- PTM: May be ubiquitinated by NEDD4L; which would promote its
CC       endocytosis. {ECO:0000250}.
CC   -!- PTM: Phosphorylation at Ser-1495 by PKC in a highly conserved
CC       cytoplasmic loop slows inactivation of the sodium channel and reduces
CC       peak sodium currents. {ECO:0000250}.
CC   -!- MISCELLANEOUS: [Isoform 2]: May be due to competing donor splice site.
CC       {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the sodium channel (TC 1.A.1.10) family.
CC       Nav1.6/SCN8A subfamily. {ECO:0000305}.
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DR   EMBL; AF049239; AAC26014.1; -; mRNA.
DR   EMBL; AF049240; AAC26015.1; -; mRNA.
DR   RefSeq; NP_062139.2; NM_019266.2. [O88420-1]
DR   AlphaFoldDB; O88420; -.
DR   BMRB; O88420; -.
DR   SMR; O88420; -.
DR   BioGRID; 248327; 2.
DR   STRING; 10116.ENSRNOP00000008160; -.
DR   BindingDB; O88420; -.
DR   ChEMBL; CHEMBL2752; -.
DR   GuidetoPHARMACOLOGY; 583; -.
DR   CarbonylDB; O88420; -.
DR   GlyGen; O88420; 8 sites.
DR   iPTMnet; O88420; -.
DR   PhosphoSitePlus; O88420; -.
DR   PaxDb; O88420; -.
DR   PRIDE; O88420; -.
DR   ABCD; O88420; 1 sequenced antibody.
DR   Ensembl; ENSRNOT00000080923; ENSRNOP00000075703; ENSRNOG00000005309. [O88420-2]
DR   GeneID; 29710; -.
DR   KEGG; rno:29710; -.
DR   UCSC; RGD:3638; rat. [O88420-1]
DR   CTD; 6334; -.
DR   RGD; 3638; Scn8a.
DR   eggNOG; KOG2301; Eukaryota.
DR   GeneTree; ENSGT00940000156263; -.
DR   InParanoid; O88420; -.
DR   OrthoDB; 172471at2759; -.
DR   PhylomeDB; O88420; -.
DR   Reactome; R-RNO-5576892; Phase 0 - rapid depolarisation.
DR   PRO; PR:O88420; -.
DR   Proteomes; UP000002494; Chromosome 7.
DR   GO; GO:0030424; C:axon; IDA:ARUK-UCL.
DR   GO; GO:0043194; C:axon initial segment; IDA:BHF-UCL.
DR   GO; GO:0030425; C:dendrite; ISO:RGD.
DR   GO; GO:0098978; C:glutamatergic synapse; IDA:SynGO.
DR   GO; GO:0016021; C:integral component of membrane; IDA:RGD.
DR   GO; GO:0099061; C:integral component of postsynaptic density membrane; IDA:SynGO.
DR   GO; GO:0099059; C:integral component of presynaptic active zone membrane; IDA:SynGO.
DR   GO; GO:0016020; C:membrane; ISO:RGD.
DR   GO; GO:0043025; C:neuronal cell body; ISO:RGD.
DR   GO; GO:0033268; C:node of Ranvier; IDA:BHF-UCL.
DR   GO; GO:0098688; C:parallel fiber to Purkinje cell synapse; IDA:SynGO.
DR   GO; GO:0005886; C:plasma membrane; IDA:RGD.
DR   GO; GO:0034706; C:sodium channel complex; ISO:RGD.
DR   GO; GO:0001518; C:voltage-gated sodium channel complex; IDA:RGD.
DR   GO; GO:0030018; C:Z disc; ISO:RGD.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0031402; F:sodium ion binding; IDA:RGD.
DR   GO; GO:0005244; F:voltage-gated ion channel activity; IEA:UniProtKB-KW.
DR   GO; GO:0005248; F:voltage-gated sodium channel activity; IDA:RGD.
DR   GO; GO:0008344; P:adult locomotory behavior; ISO:RGD.
DR   GO; GO:0007628; P:adult walking behavior; ISO:RGD.
DR   GO; GO:0007626; P:locomotory behavior; ISO:RGD.
DR   GO; GO:0086010; P:membrane depolarization during action potential; IBA:GO_Central.
DR   GO; GO:0007517; P:muscle organ development; ISO:RGD.
DR   GO; GO:0042552; P:myelination; IEP:BHF-UCL.
DR   GO; GO:0050905; P:neuromuscular process; ISO:RGD.
DR   GO; GO:0019228; P:neuronal action potential; IDA:RGD.
DR   GO; GO:0007422; P:peripheral nervous system development; IEP:BHF-UCL.
DR   GO; GO:0034765; P:regulation of ion transmembrane transport; IEA:UniProtKB-KW.
DR   GO; GO:0009636; P:response to toxic substance; ISO:RGD.
DR   GO; GO:0007605; P:sensory perception of sound; ISO:RGD.
DR   GO; GO:0035725; P:sodium ion transmembrane transport; IBA:GO_Central.
DR   GO; GO:0006814; P:sodium ion transport; IDA:RGD.
DR   CDD; cd13433; Na_channel_gate; 1.
DR   Gene3D; 1.20.120.350; -; 4.
DR   InterPro; IPR005821; Ion_trans_dom.
DR   InterPro; IPR000048; IQ_motif_EF-hand-BS.
DR   InterPro; IPR008054; Na_channel_a8su.
DR   InterPro; IPR001696; Na_channel_asu.
DR   InterPro; IPR044564; Na_chnl_inactivation_gate.
DR   InterPro; IPR010526; Na_trans_assoc.
DR   InterPro; IPR024583; Na_trans_cytopl.
DR   InterPro; IPR043203; VGCC_Ca_Na.
DR   InterPro; IPR027359; Volt_channel_dom_sf.
DR   PANTHER; PTHR10037; PTHR10037; 1.
DR   Pfam; PF00520; Ion_trans; 4.
DR   Pfam; PF00612; IQ; 1.
DR   Pfam; PF06512; Na_trans_assoc; 1.
DR   Pfam; PF11933; Na_trans_cytopl; 1.
DR   PRINTS; PR00170; NACHANNEL.
DR   PRINTS; PR01667; NACHANNEL8.
DR   SMART; SM00015; IQ; 1.
DR   PROSITE; PS50096; IQ; 1.
PE   1: Evidence at protein level;
KW   Alternative splicing; ATP-binding; Cell membrane; Cell projection;
KW   Disulfide bond; Glycoprotein; Ion channel; Ion transport; Membrane;
KW   Nucleotide-binding; Phosphoprotein; Reference proteome; Repeat; Sodium;
KW   Sodium channel; Sodium transport; Transmembrane; Transmembrane helix;
KW   Transport; Ubl conjugation; Voltage-gated channel.
FT   CHAIN           1..1978
FT                   /note="Sodium channel protein type 8 subunit alpha"
FT                   /id="PRO_0000390890"
FT   TOPO_DOM        1..132
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        133..151
FT                   /note="Helical; Name=S1 of repeat I"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        152..158
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        159..179
FT                   /note="Helical; Name=S2 of repeat I"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        180..193
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        194..211
FT                   /note="Helical; Name=S3 of repeat I"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        212..217
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        218..234
FT                   /note="Helical; Name=S4 of repeat I"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        235..253
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        254..273
FT                   /note="Helical; Name=S5 of repeat I"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        274..355
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   INTRAMEM        356..380
FT                   /note="Pore-forming"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        381..387
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        388..408
FT                   /note="Helical; Name=S6 of repeat I"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        409..751
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        752..770
FT                   /note="Helical; Name=S1 of repeat II"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        771..781
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        782..801
FT                   /note="Helical; Name=S2 of repeat II"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        802..815
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        816..835
FT                   /note="Helical; Name=S3 of repeat II"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        836..837
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        838..855
FT                   /note="Helical; Name=S4 of repeat II"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        856..871
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        872..890
FT                   /note="Helical; Name=S5 of repeat II"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        891..919
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   INTRAMEM        920..940
FT                   /note="Pore-forming"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        941..953
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        954..974
FT                   /note="Helical; Name=S6 of repeat II"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        975..1197
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1198..1215
FT                   /note="Helical; Name=S1 of repeat III"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1216..1228
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1229..1247
FT                   /note="Helical; Name=S2 of repeat III"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1248..1261
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1262..1280
FT                   /note="Helical; Name=S3 of repeat III"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1281..1288
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1289..1307
FT                   /note="Helical; Name=S4 of repeat III"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1308..1324
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1325..1344
FT                   /note="Helical; Name=S5 of repeat III"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1345..1397
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   INTRAMEM        1398..1419
FT                   /note="Pore-forming"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1420..1436
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1437..1458
FT                   /note="Helical; Name=S6 of repeat III"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1459..1521
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1522..1539
FT                   /note="Helical; Name=S1 of repeat IV"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1540..1550
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1551..1569
FT                   /note="Helical; Name=S2 of repeat IV"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1570..1581
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1582..1599
FT                   /note="Helical; Name=S3 of repeat IV"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1600..1612
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1613..1629
FT                   /note="Helical; Name=S4 of repeat IV"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1630..1648
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1649..1666
FT                   /note="Helical; Name=S5 of repeat IV"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1667..1688
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   INTRAMEM        1689..1711
FT                   /note="Pore-forming"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1712..1740
FT                   /note="Extracellular"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        1741..1763
FT                   /note="Helical; Name=S6 of repeat IV"
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   TOPO_DOM        1764..1978
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   REPEAT          114..442
FT                   /note="I"
FT                   /evidence="ECO:0000305"
FT   REPEAT          733..1005
FT                   /note="II"
FT                   /evidence="ECO:0000305"
FT   REPEAT          1178..1493
FT                   /note="III"
FT                   /evidence="ECO:0000305"
FT   REPEAT          1502..1799
FT                   /note="IV"
FT                   /evidence="ECO:0000305"
FT   DOMAIN          1893..1922
FT                   /note="IQ"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00116"
FT   REGION          1..20
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          28..62
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          446..530
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          576..597
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          1105..1146
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          1923..1978
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        28..57
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        500..530
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        1114..1129
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        1948..1978
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         891..898
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255"
FT   MOD_RES         518
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:22673903"
FT   MOD_RES         520
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0007744|PubMed:22673903"
FT   MOD_RES         1495
FT                   /note="Phosphoserine; by PKC"
FT                   /evidence="ECO:0000250|UniProtKB:Q15858"
FT   CARBOHYD        215
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        289
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        295
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        308
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        326
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        1356
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        1370
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   CARBOHYD        1381
FT                   /note="N-linked (GlcNAc...) asparagine"
FT                   /evidence="ECO:0000255"
FT   DISULFID        281..333
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   DISULFID        902
FT                   /note="Interchain; with SCN2B or SCN4B"
FT                   /evidence="ECO:0000250|UniProtKB:P04775"
FT   DISULFID        902
FT                   /note="Interchain; with the conotoxin GVIIJ (when the
FT                   channel is not linked to SCN2B or SCN4B; the bond to SCN2B
FT                   or SCN4B protects the channel from the inhibition by
FT                   toxin)"
FT                   /evidence="ECO:0000250|UniProtKB:P04775"
FT   DISULFID        942..951
FT                   /evidence="ECO:0000250|UniProtKB:D0E0C2"
FT   VAR_SEQ         664
FT                   /note="E -> EVKIDKAATDS (in isoform 2)"
FT                   /evidence="ECO:0000303|PubMed:9603190"
FT                   /id="VSP_038652"
SQ   SEQUENCE   1978 AA;  225159 MW;  9160843C5935B88B CRC64;
     MAARLLAPPG PDSFKPFTPE SLANIERRIA ESKLKKPPKA DGSHREDDED SKPKPNSDLE
     AGKSLPFIYG DIPQGLVAVP LEDFDPYYLT QKTFVVLNRG KTLFRFSATP ALYILSPFNL
     IRRIAIKILI HSVFSMIIMC TILTNCVFMT FSNPPEWSKN VEYTFTGIYT FESLVKIIAR
     GFCIDGFTFL RDPWNWLDFS VIMMAYVTEF VDLGNVSALR TFRVLRALKT ISVIPGLKTI
     VGALIQSVKK LSDVMILTVF CLSVFALIGL QLFMGNLRNK CVVWPINFNE SYLENGTRGF
     DWEEYINNKT NFYMVPGMLE PLLCGNSSDA GQCPEGFQCM KAGRNPNYGY TSFDTFSWAF
     LALFRLMTQD YWENLYQLTL RAAGKTYMIF FVLVIFVGSF YLVNLILAVV AMAYEEQNQA
     TLEEAEQKEA EFKAMLEQLK KQQEEAQAAA MATSAGTVSE DAIEEEGEDG VGSPRSSSEL
     SKLSSKSAKE RRNRRKKRKQ KELSEGEEKG DPEKVFKSES EDGMRRKAFR LPDNRIGRKF
     SIMNQSLLSI PGSPFLSRHN SKSSIFSFRG PGRFRDPGSE NEFADDEHST VEESEGRRDS
     LFIPIRARER RSSYSGYSGY SQCSRSSRIF PSLRRSVKRN STVDCNGVVS LIGPGSHIGR
     LLPEATTEVE IKKKGPGSLL VSMDQLASYG RKDRINSIMS VVTNTLVEEL EESQRKCPPC
     WYKFANTFLI WECHPYWIKL KEIVNLIVMD PFVDLAITIC IVLNTLFMAM EHHPMTPQFE
     HVLAVGNLVF TGIFTAEMFL KLIAMDPYYY FQEGWNIFDG FIVSLSLMEL SLADVEGLSV
     LRSFRLLRVF KLAKSWPTLN MLIKIIGNSV GALGNLTLVL AIIVFIFAVV GMQLFGKSYK
     ECVCKINQEC KLPRWHMNDF FHSFLIVFRV LCGEWIETMW DCMEVAGQAM CLIVFMMVMV
     IGNLVVLNLF LALLLSSFSA DNLAATDDDG EMNNLQISVI RIKKGVAWTK VKVHAFMQAH
     FKQREADEVK PLDELYEKKA NCIANHTGVD IHRNGDFQKN GNGTTSGIGS SVEKYIIDED
     HMSFINNPNL TVRVPIAVGE SDFENLNTED VSSESDPEGS KDKLDDTSSS EGSTIDIKPE
     VEEVPVEQPE EYLDPDACFT EGCVQRFKCC QVNIEEGLGK SWWILRKTCF LIVEHNWFET
     FIIFMILLSS GALAFEDIYI EQRKTIRTIL EYADKVFTYI FILEMLLKWT AYGFVKFFTN
     AWCWLDFLIV AVSLVSLIAN ALGYSELGAI KSLRTLRALR PLRALSRFEG MRVVVNALVG
     AIPSIMNVLL VCLIFWLIFS IMGVNLFAGK YHYCFNETSE IRFEIDIVNN KTDCEKLMEG
     NSTEIRWKNV KINFDNVGAG YLALLQVATF KGWMDIMYAA VDSRKPDEQP DYEGNIYMYI
     YFVIFIIFGS FFTLNLFIGV IIDNFNQQKK KFGGQDIFMT EEQKKYYNAM KKLGSKKPQK
     PIPRPLNKIQ GIVFDFVTQQ AFDIVIMMLI CLNMVTMMVE TDTQSKQMEN ILYWINLVFV
     IFFTCECVLK MFALRHYYFT IGWNIFDFVV VILSIVGMFL ADIIEKYFVS PTLFRVIRLA
     RIGRILRLIK GAKGIRTLLF ALMMSLPALF NIGLLLFLVM FIFSIFGMSN FAYVKHEAGI
     DDMFNFETFG NSMICLFQIT TSAGWDGLLL PILNRPPDCS LDKEHPGSGF KGDCGNPSVG
     IFFFVSYIII SFLIVVNMYI AIILENFSVA TEESADPLSE DDFETFYEIW EKFDPDATQF
     IEYCKLADFA DALEHPLRVP KPNTIELIAM DLPMVSGDRI HCLDILFAFT KRVLGDSGEL
     DILRQQMEER FVASNPSKVS YEPITTTLRR KQEEVSAVVL QRAYRGHLAR RGFICRKMAS
     NKLENGGTHR DKKESTPSTA SLPSYDSVTK PDKEKQQRAE EGRRERAKRQ KEVRESKC
 
 
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