NameSodium channel protein type 2 subunit alpha
Synonyms
  • HBSC II
  • NAC2
  • SCN2A1
  • SCN2A2
  • Sodium channel protein brain II subunit alpha
  • Sodium channel protein type II subunit alpha
  • Voltage-gated sodium channel subunit alpha Nav1.2
Gene NameSCN2A
OrganismHuman
Amino acid sequence
>lcl|BSEQ0004080|Sodium channel protein type 2 subunit alpha
MAQSVLVPPGPDSFRFFTRESLAAIEQRIAEEKAKRPKQERKDEDDENGPKPNSDLEAGK
SLPFIYGDIPPEMVSVPLEDLDPYYINKKTFIVLNKGKAISRFSATPALYILTPFNPIRK
LAIKILVHSLFNMLIMCTILTNCVFMTMSNPPDWTKNVEYTFTGIYTFESLIKILARGFC
LEDFTFLRDPWNWLDFTVITFAYVTEFVDLGNVSALRTFRVLRALKTISVIPGLKTIVGA
LIQSVKKLSDVMILTVFCLSVFALIGLQLFMGNLRNKCLQWPPDNSSFEINITSFFNNSL
DGNGTTFNRTVSIFNWDEYIEDKSHFYFLEGQNDALLCGNSSDAGQCPEGYICVKAGRNP
NYGYTSFDTFSWAFLSLFRLMTQDFWENLYQLTLRAAGKTYMIFFVLVIFLGSFYLINLI
LAVVAMAYEEQNQATLEEAEQKEAEFQQMLEQLKKQQEEAQAAAAAASAESRDFSGAGGI
GVFSESSSVASKLSSKSEKELKNRRKKKKQKEQSGEEEKNDRVRKSESEDSIRRKGFRFS
LEGSRLTYEKRFSSPHQSLLSIRGSLFSPRRNSRASLFSFRGRAKDIGSENDFADDEHST
FEDNDSRRDSLFVPHRHGERRHSNVSQASRASRVLPILPMNGKMHSAVDCNGVVSLVGGP
STLTSAGQLLPEGTTTETEIRKRRSSSYHVSMDLLEDPTSRQRAMSIASILTNTMEELEE
SRQKCPPCWYKFANMCLIWDCCKPWLKVKHLVNLVVMDPFVDLAITICIVLNTLFMAMEH
YPMTEQFSSVLSVGNLVFTGIFTAEMFLKIIAMDPYYYFQEGWNIFDGFIVSLSLMELGL
ANVEGLSVLRSFRLLRVFKLAKSWPTLNMLIKIIGNSVGALGNLTLVLAIIVFIFAVVGM
QLFGKSYKECVCKISNDCELPRWHMHDFFHSFLIVFRVLCGEWIETMWDCMEVAGQTMCL
TVFMMVMVIGNLVVLNLFLALLLSSFSSDNLAATDDDNEMNNLQIAVGRMQKGIDFVKRK
IREFIQKAFVRKQKALDEIKPLEDLNNKKDSCISNHTTIEIGKDLNYLKDGNGTTSGIGS
SVEKYVVDESDYMSFINNPSLTVTVPIAVGESDFENLNTEEFSSESDMEESKEKLNATSS
SEGSTVDIGAPAEGEQPEVEPEESLEPEACFTEDCVRKFKCCQISIEEGKGKLWWNLRKT
CYKIVEHNWFETFIVFMILLSSGALAFEDIYIEQRKTIKTMLEYADKVFTYIFILEMLLK
WVAYGFQVYFTNAWCWLDFLIVDVSLVSLTANALGYSELGAIKSLRTLRALRPLRALSRF
EGMRVVVNALLGAIPSIMNVLLVCLIFWLIFSIMGVNLFAGKFYHCINYTTGEMFDVSVV
NNYSECKALIESNQTARWKNVKVNFDNVGLGYLSLLQVATFKGWMDIMYAAVDSRNVELQ
PKYEDNLYMYLYFVIFIIFGSFFTLNLFIGVIIDNFNQQKKKFGGQDIFMTEEQKKYYNA
MKKLGSKKPQKPIPRPANKFQGMVFDFVTKQVFDISIMILICLNMVTMMVETDDQSQEMT
NILYWINLVFIVLFTGECVLKLISLRYYYFTIGWNIFDFVVVILSIVGMFLAELIEKYFV
SPTLFRVIRLARIGRILRLIKGAKGIRTLLFALMMSLPALFNIGLLLFLVMFIYAIFGMS
NFAYVKREVGIDDMFNFETFGNSMICLFQITTSAGWDGLLAPILNSGPPDCDPDKDHPGS
SVKGDCGNPSVGIFFFVSYIIISFLVVVNMYIAVILENFSVATEESAEPLSEDDFEMFYE
VWEKFDPDATQFIEFAKLSDFADALDPPLLIAKPNKVQLIAMDLPMVSGDRIHCLDILFA
FTKRVLGESGEMDALRIQMEERFMASNPSKVSYEPITTTLKRKQEEVSAIIIQRAYRRYL
LKQKVKKVSSIYKKDKGKECDGTPIKEDTLIDKLNENSTPEKTDMTPSTTSPPSYDSVTK
PEKEKFEKDKSEKEDKGKDIRESKK
Number of residues2005
Molecular Weight227972.64
Theoretical pI5.42
GO Classification
Functions
  • voltage-gated sodium channel activity
Processes
  • membrane depolarization during action potential
  • neuronal action potential
  • neuron apoptotic process
  • sodium ion transport
  • intrinsic apoptotic signaling pathway in response to osmotic stress
  • sodium ion transmembrane transport
  • myelination
Components
  • T-tubule
  • intrinsic component of plasma membrane
  • axon
  • node of Ranvier
  • intracellular
  • paranode region of axon
  • voltage-gated sodium channel complex
  • plasma membrane
  • integral component of plasma membrane
  • sodium channel complex
  • intercalated disc
General FunctionVoltage-gated sodium channel activity
Specific FunctionMediates 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.
Pfam Domain Function
Transmembrane Regions125-148 157-176 190-208 215-234 251-274 402-427 754-778 790-813 822-841 848-867 884-904 958-983 1204-1227 1241-1266 1273-1294 1299-1320 1340-1367 1447-1473 1527-1550 1562-1585 1592-1615 1626-1647 1663-1685 1752-1776
GenBank Protein ID457879
UniProtKB IDQ99250
UniProtKB Entry NameSCN2A_HUMAN
Cellular LocationCell membrane
Gene sequence
>lcl|BSEQ0021675|Sodium channel protein type 2 subunit alpha (SCN2A)
ATGGCACAGTCAGTGCTGGTACCGCCAGGACCTGACAGCTTCCGCTTCTTTACCAGGGAA
TCCCTTGCTGCTATTGAACAACGCATTGCAGAAGAGAAAGCTAAGAGACCCAAACAGGAA
CGCAAGGATGAGGATGATGAAAATGGCCCAAAGCCAAACAGTGACTTGGAAGCAGGAAAA
TCTCTTCCATTTATTTATGGAGACATTCCTCCAGAGATGGTGTCAGTGCCCCTGGAGGAT
CTGGACCCCTACTATATCAATAAGAAAACGTTTATAGTATTGAATAAAGGGAAAGCAATC
TCTCGATTCAGTGCCACCCCTGCCCTTTACATTTTAACTCCCTTCAACCCTATTAGAAAA
TTAGCTATTAAGATTTTGGTACATTCTTTATTCAATATGCTCATTATGTGCACGATTCTT
ACCAACTGTGTATTTATGACCATGAGTAACCCTCCAGACTGGACAAAGAATGTGGAGTAT
ACCTTTACAGGAATTTATACTTTTGAATCACTTATTAAAATACTTGCAAGGGGCTTTTGT
TTAGAAGATTTCACATTTTTACGGGATCCATGGAATTGGTTGGATTTCACAGTCATTACT
TTTGCATATGTGACAGAGTTTGTGGACCTGGGCAATGTCTCAGCGTTGAGAACATTCAGA
GTTCTCCGAGCATTGAAAACAATTTCAGTCATTCCAGGCCTGAAGACCATTGTGGGGGCC
CTGATCCAGTCAGTGAAGAAGCTTTCTGATGTCATGATCTTGACTGTGTTCTGTCTAAGC
GTGTTTGCGCTAATAGGATTGCAGTTGTTCATGGGCAACCTACGAAATAAATGTTTGCAA
TGGCCTCCAGATAATTCTTCCTTTGAAATAAATATCACTTCCTTCTTTAACAATTCATTG
GATGGGAATGGTACTACTTTCAATAGGACAGTGAGCATATTTAACTGGGATGAATATATT
GAGGATAAAAGTCACTTTTATTTTTTAGAGGGGCAAAATGATGCTCTGCTTTGTGGCAAC
AGCTCAGATGCAGGCCAGTGTCCTGAAGGATACATCTGTGTGAAGGCTGGTAGAAACCCC
AACTATGGCTACACGAGCTTTGACACCTTTAGTTGGGCCTTTTTGTCCTTATTTCGTCTC
ATGACTCAAGACTTCTGGGAAAACCTTTATCAACTGACACTACGTGCTGCTGGGAAAACG
TACATGATATTTTTTGTGCTGGTCATTTTCTTGGGCTCATTCTATCTAATAAATTTGATC
TTGGCTGTGGTGGCCATGGCCTATGAGGAACAGAATCAGGCCACATTGGAAGAGGCTGAA
CAGAAGGAAGCTGAATTTCAGCAGATGCTCGAACAGTTGAAAAAGCAACAAGAAGAAGCT
CAGGCGGCAGCTGCAGCCGCATCTGCTGAATCAAGAGACTTCAGTGGTGCTGGTGGGATA
GGAGTTTTTTCAGAGAGTTCTTCAGTAGCATCTAAGTTGAGCTCCAAAAGTGAAAAAGAG
CTGAAAAACAGAAGAAAGAAAAAGAAACAGAAAGAACAGTCTGGAGAAGAAGAGAAAAAT
GACAGAGTCCGAAAATCGGAATCTGAAGACAGCATAAGAAGAAAAGGTTTCCGTTTTTCC
TTGGAAGGAAGTAGGCTGACATATGAAAAGAGATTTTCTTCTCCACACCAGTCCTTACTG
AGCATCCGTGGCTCCCTTTTCTCTCCAAGACGCAACAGTAGGGCGAGCCTTTTCAGCTTC
AGAGGTCGAGCAAAGGACATTGGCTCTGAGAATGACTTTGCTGATGATGAGCACAGCACC
TTTGAGGACAATGACAGCCGAAGAGACTCTCTGTTCGTGCCGCACAGACATGGAGAACGG
CGCCACAGCAATGTCAGCCAGGCCAGCCGTGCCTCCAGGGTGCTCCCCATCCTGCCCATG
AATGGGAAGATGCATAGCGCTGTGGACTGCAATGGTGTGGTCTCCCTGGTCGGGGGCCCT
TCTACCCTCACATCTGCTGGGCAGCTCCTACCAGAGGGCACAACTACTGAAACAGAAATA
AGAAAGAGACGGTCCAGTTCTTATCATGTTTCCATGGATTTATTGGAAGATCCTACATCA
AGGCAAAGAGCAATGAGTATAGCCAGTATTTTGACCAACACCATGGAAGAACTTGAAGAA
TCCAGACAGAAATGCCCACCATGCTGGTATAAATTTGCTAATATGTGTTTGATTTGGGAC
TGTTGTAAACCATGGTTAAAGGTGAAACACCTTGTCAACCTGGTTGTAATGGACCCATTT
GTTGACCTGGCCATCACCATCTGCATTGTCTTAAATACACTCTTCATGGCTATGGAGCAC
TATCCCATGACGGAGCAGTTCAGCAGTGTACTGTCTGTTGGAAACCTGGTCTTCACAGGG
ATCTTCACAGCAGAAATGTTTCTCAAGATAATTGCCATGGATCCATATTATTACTTTCAA
GAAGGCTGGAATATTTTTGATGGTTTTATTGTGAGCCTTAGTTTAATGGAACTTGGTTTG
GCAAATGTGGAAGGATTGTCAGTTCTCCGATCATTCCGGCTGCTCCGAGTTTTCAAGTTG
GCAAAATCTTGGCCAACTCTAAATATGCTAATTAAGATCATTGGCAATTCTGTGGGGGCT
CTAGGAAACCTCACCTTGGTATTGGCCATCATCGTCTTCATTTTTGCTGTGGTCGGCATG
CAGCTCTTTGGTAAGAGCTACAAAGAATGTGTCTGCAAGATTTCCAATGATTGTGAACTC
CCACGCTGGCACATGCATGACTTTTTCCACTCCTTCCTGATCGTGTTCCGCGTGCTGTGT
GGAGAGTGGATAGAGACCATGTGGGACTGTATGGAGGTCGCTGGCCAAACCATGTGCCTT
ACTGTCTTCATGATGGTCATGGTGATTGGAAATCTAGTGGTTCTGAACCTCTTCTTGGCC
TTGCTTTTGAGTTCCTTCAGTTCTGACAATCTTGCTGCCACTGATGATGATAACGAAATG
AATAATCTCCAGATTGCTGTGGGAAGGATGCAGAAAGGAATCGATTTTGTTAAAAGAAAA
ATACGTGAATTTATTCAGAAAGCCTTTGTTAGGAAGCAGAAAGCTTTAGATGAAATTAAA
CCGCTTGAAGATCTAAATAATAAAAAAGACAGCTGTATTTCCAACCATACCACCATAGAA
ATAGGCAAAGACCTCAATTATCTCAAAGACGGAAATGGAACTACTAGTGGCATAGGCAGC
AGTGTAGAAAAATATGTCGTGGATGAAAGTGATTACATGTCATTTATAAACAACCCTAGC
CTCACTGTGACAGTACCAATTGCTGTTGGAGAATCTGACTTTGAAAATTTAAATACTGAA
GAATTCAGCAGCGAGTCAGATATGGAGGAAAGCAAAGAGAAGCTAAATGCAACTAGTTCA
TCTGAAGGCAGCACGGTTGATATTGGAGCTCCCGCCGAGGGAGAACAGCCTGAGGTTGAA
CCTGAGGAATCCCTTGAACCTGAAGCCTGTTTTACAGAAGACTGTGTACGGAAGTTCAAG
TGTTGTCAGATAAGCATAGAAGAAGGCAAAGGGAAACTCTGGTGGAATTTGAGGAAAACA
TGCTATAAGATAGTGGAGCACAATTGGTTCGAAACCTTCATTGTCTTCATGATTCTGCTG
AGCAGTGGGGCTCTGGCCTTTGAAGATATATACATTGAGCAGCGAAAAACCATTAAGACC
ATGTTAGAATATGCTGACAAGGTTTTCACTTACATATTCATTCTGGAAATGCTGCTAAAG
TGGGTTGCATATGGTTTTCAAGTGTATTTTACCAATGCCTGGTGCTGGCTAGACTTCCTG
ATTGTTGATGTCTCACTGGTTAGCTTAACTGCAAATGCCTTGGGTTACTCAGAACTTGGT
GCCATCAAATCCCTCAGAACACTAAGAGCTCTGAGGCCACTGAGAGCTTTGTCCCGGTTT
GAAGGAATGAGGGTTGTTGTAAATGCTCTTTTAGGAGCCATTCCATCTATCATGAATGTA
CTTCTGGTTTGTCTGATCTTTTGGCTAATATTCAGTATCATGGGAGTGAATCTCTTTGCT
GGCAAGTTTTACCATTGTATTAATTACACCACTGGAGAGATGTTTGATGTAAGCGTGGTC
AACAACTACAGTGAGTGCAAAGCTCTCATTGAGAGCAATCAAACTGCCAGGTGGAAAAAT
GTGAAAGTAAACTTTGATAACGTAGGACTTGGATATCTGTCTCTACTTCAAGTAGCCACG
TTTAAGGGATGGATGGATATTATGTATGCAGCTGTTGATTCACGAAATGTAGAATTACAA
CCCAAGTATGAAGACAACCTGTACATGTATCTTTATTTTGTCATCTTTATTATTTTTGGT
TCATTCTTTACCTTGAATCTTTTCATTGGTGTCATCATAGATAACTTCAACCAACAGAAA
AAGAAGTTTGGAGGTCAAGACATTTTTATGACAGAAGAACAGAAGAAATACTACAATGCA
ATGAAAAAACTGGGTTCAAAGAAACCACAAAAACCCATACCTCGACCTGCTAACAAATTC
CAAGGAATGGTCTTTGATTTTGTAACCAAACAAGTCTTTGATATCAGCATCATGATCCTC
ATCTGCCTTAACATGGTCACCATGATGGTGGAAACCGATGACCAGAGTCAAGAAATGACA
AACATTCTGTACTGGATTAATCTGGTGTTTATTGTTCTGTTCACTGGAGAATGTGTGCTG
AAACTGATCTCTCTTCGTTACTACTATTTCACTATTGGATGGAATATTTTTGATTTTGTG
GTGGTCATTCTCTCCATTGTAGGAATGTTTCTGGCTGAACTGATAGAAAAGTATTTTGTG
TCCCCTACCCTGTTCCGAGTGATCCGTCTTGCCAGGATTGGCCGAATCCTACGTCTGATC
AAAGGAGCAAAGGGGATCCGCACGCTGCTCTTTGCTTTGATGATGTCCCTTCCTGCGTTG
TTTAACATCGGCCTCCTTCTTTTCCTGGTCATGTTCATCTACGCCATCTTTGGGATGTCC
AATTTTGCCTATGTTAAGAGGGAAGTTGGGATCGATGACATGTTCAACTTTGAGACCTTT
GGCAACAGCATGATCTGCCTGTTCCAAATTACAACCTCTGCTGGCTGGGATGGATTGCTA
GCACCTATTCTTAATAGTGGACCTCCAGACTGTGACCCTGACAAAGATCACCCTGGAAGC
TCAGTTAAAGGAGACTGTGGGAACCCATCTGTTGGGATTTTCTTTTTTGTCAGTTACATC
ATCATATCCTTCCTGGTTGTGGTGAACATGTACATCGCGGTCATCCTGGAGAACTTCAGT
GTTGCTACTGAAGAAAGTGCAGAGCCTCTGAGTGAGGATGACTTTGAGATGTTCTATGAG
GTTTGGGAGAAGTTTGATCCCGATGCGACCCAGTTTATAGAGTTTGCCAAACTTTCTGAT
TTTGCAGATGCCCTGGATCCTCCTCTTCTCATAGCAAAACCCAACAAAGTCCAGCTCATT
GCCATGGATCTGCCCATGGTGAGTGGTGACCGGATCCACTGTCTTGACATCTTATTTGCT
TTTACAAAGCGTGTTTTGGGTGAGAGTGGAGAGATGGATGCCCTTCGAATACAGATGGAA
GAGCGATTCATGGCATCAAACCCCTCCAAAGTCTCTTATGAGCCCATTACGACCACGTTG
AAACGCAAACAAGAGGAGGTGTCTGCTATTATTATCCAGAGGGCTTACAGACGCTACCTC
TTGAAGCAAAAAGTTAAAAAGGTATCAAGTATATACAAGAAAGACAAAGGCAAAGAATGT
GATGGAACACCCATCAAAGAAGATACTCTCATTGATAAACTGAATGAGAATTCAACTCCA
GAGAAAACCGATATGACGCCTTCCACCACGTCTCCACCCTCGTATGATAGTGTGACCAAA
CCAGAAAAAGAAAAATTTGAAAAAGACAAATCAGAAAAGGAAGACAAAGGGAAAGATATC
AGGGAAAGTAAAAAGTAA
GenBank Gene IDM94055
GeneCard IDNot Available
GenAtlas IDSCN2A
HGNC IDHGNC:10588
Chromosome Location2
Locus2q23-q24
References
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