Identification
HMDB Protein ID CDBP04274
Secondary Accession Numbers Not Available
Name Sodium channel protein type 3 subunit alpha
Description Not Available
Synonyms
  1. Sodium channel protein brain III subunit alpha
  2. Sodium channel protein type III subunit alpha
  3. Voltage-gated sodium channel subtype III
  4. Voltage-gated sodium channel subunit alpha Nav1.3
Gene Name SCN3A
Protein Type Transporter
Biological Properties
General Function Involved in ion channel activity
Specific Function 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
GO Classification
Component
membrane
cell part
ion channel complex
cation channel complex
macromolecular complex
protein complex
sodium channel complex
voltage-gated sodium channel complex
Function
transmembrane transporter activity
substrate-specific transmembrane transporter activity
ion transmembrane transporter activity
sodium channel activity
transporter activity
ion channel activity
voltage-gated sodium channel activity
cation channel activity
Process
sodium ion transport
establishment of localization
transport
transmembrane transport
monovalent inorganic cation transport
ion transport
cation transport
Cellular Location
  1. Membrane
  2. Multi-pass membrane protein
Pathways
Gene Properties
Chromosome Location Chromosome:2
Locus 2q24
SNPs SCN3A
Gene Sequence
>6003 bp
ATGGCACAGGCACTGTTGGTACCCCCAGGACCTGAAAGCTTCCGCCTTTTTACTAGAGAA
TCTCTTGCTGCTATCGAAAAACGTGCTGCAGAAGAGAAAGCCAAGAAGCCCAAAAAGGAA
CAAGATAATGATGATGAGAACAAACCAAAGCCAAATAGTGACTTGGAAGCTGGAAAGAAC
CTTCCATTTATTTATGGAGACATTCCTCCAGAGATGGTGTCAGAGCCCCTGGAGGACCTG
GATCCCTACTATATCAATAAGAAAACTTTTATAGTAATGAATAAAGGAAAGGCAATTTTC
CGATTCAGTGCCACCTCTGCCTTGTATATTTTAACTCCACTAAACCCTGTTAGGAAAATT
GCTATCAAGATTTTGGTACATTCTTTATTCAGCATGCTTATCATGTGCACTATTTTGACC
AACTGTGTATTTATGACCTTGAGCAACCCTCCTGACTGGACAAAGAATGTAGAGTACACA
TTCACTGGAATCTATACCTTTGAGTCACTTATAAAAATCTTGGCAAGAGGGTTTTGCTTA
GAAGATTTTACGTTTCTTCGTGATCCATGGAACTGGCTGGATTTCAGTGTCATTGTGATG
GCATATGTGACAGAGTTTGTGGACCTGGGCAATGTCTCAGCGTTGAGAACATTCAGAGTT
CTCCGAGCACTGAAAACAATTTCAGTCATTCCAGGTTTAAAGACCATTGTGGGGGCCCTG
ATCCAGTCGGTAAAGAAGCTTTCTGATGTGATGATCCTGACTGTGTTCTGTCTGAGCGTG
TTTGCTCTCATTGGGCTGCAGCTGTTCATGGGCAATCTGAGGAATAAATGTTTGCAGTGG
CCCCCAAGCGATTCTGCTTTTGAAACCAACACCACTTCCTACTTTAATGGCACAATGGAT
TCAAATGGGACATTTGTTAATGTAACAATGAGCACATTTAACTGGAAGGATTACATTGGA
GATGACAGTCACTTTTATGTTTTGGATGGGCAAAAAGACCCTTTACTCTGTGGAAATGGC
TCAGATGCAGGCCAGTGTCCAGAAGGATACATCTGTGTGAAGGCTGGTCGAAACCCCAAC
TATGGCTACACAAGCTTTGACACCTTTAGCTGGGCTTTCCTGTCTCTATTTCGACTCATG
ACTCAAGACTACTGGGAAAATCTTTACCAGTTGACATTACGTGCTGCTGGGAAAACATAC
ATGATATTTTTTGTCCTGGTCATTTTCTTGGGCTCATTTTATTTGGTGAATTTGATCCTG
GCTGTGGTGGCCATGGCCTATGAGGAGCAGAATCAGGCCACCTTGGAAGAAGCAGAACAA
AAAGAGGCCGAATTTCAGCAGATGCTCGAACAGCTTAAAAAGCAACAGGAAGAAGCTCAG
GCAGTTGCGGCAGCATCAGCTGCTTCAAGAGATTTCAGTGGAATAGGTGGGTTAGGAGAG
CTGTTGGAAAGTTCTTCAGAAGCATCAAAGTTGAGTTCCAAAAGTGCTAAAGAATGGAGG
AACCGAAGGAAGAAAAGAAGACAGAGAGAGCACCTTGAAGGAAACAACAAAGGAGAGAGA
GACAGCTTTCCCAAATCCGAATCTGAAGACAGCGTCAAAAGAAGCAGCTTCCTTTTCTCC
ATGGATGGAAACAGACTGACCAGTGACAAAAAATTCTGCTCCCCTCATCAGTCTCTCTTG
AGTATCCGTGGCTCCCTGTTTTCCCCAAGACGCAATAGCAAAACAAGCATTTTCAGTTTC
AGAGGTCGGGCAAAGGATGTTGGATCTGAAAATGACTTTGCTGATGATGAACACAGCACA
TTTGAAGACAGCGAAAGCAGGAGAGACTCACTGTTTGTGCCGCACAGACATGGAGAGCGA
CGCAACAGTAACGTTAGTCAGGCCAGTATGTCATCCAGGATGGTGCCAGGGCTTCCAGCA
AATGGGAAGATGCACAGCACTGTGGATTGCAATGGTGTGGTTTCCTTGGTGGGTGGACCT
TCAGCTCTAACGTCACCTACTGGACAACTTCCCCCAGAGGGCACCACCACAGAAACGGAA
GTCAGAAAGAGAAGGTTAAGCTCTTACCAGATTTCAATGGAGATGCTGGAGGATTCCTCT
GGAAGGCAAAGAGCCGTGAGCATAGCCAGCATTCTGACCAACACAATGGAAGAACTTGAA
GAATCTAGACAGAAATGTCCGCCATGCTGGTATAGATTTGCCAATGTGTTCTTGATCTGG
GACTGCTGTGATGCATGGTTAAAAGTAAAACATCTTGTGAATTTAATTGTTATGGATCCA
TTTGTTGATCTTGCCATCACTATTTGCATTGTCTTAAATACCCTCTTTATGGCCATGGAG
CACTACCCCATGACTGAGCAATTCAGTAGTGTGTTGACTGTAGGAAACCTGGTCTTTACT
GGGATTTTCACAGCAGAAATGGTTCTCAAGATCATTGCCATGGATCCTTATTACTATTTC
CAAGAAGGCTGGAATATCTTTGATGGAATTATTGTCAGCCTCAGTTTAATGGAGCTTGGT
CTGTCAAATGTGGAGGGATTGTCTGTACTGCGATCATTCAGACTGCTTAGAGTTTTCAAG
TTGGCAAAATCCTGGCCCACACTAAATATGCTAATTAAGATCATTGGCAATTCTGTGGGG
GCTCTAGGAAACCTCACCTTGGTGTTGGCCATCATCGTCTTCATTTTTGCTGTGGTCGGC
ATGCAGCTCTTTGGTAAGAGCTACAAAGAATGTGTCTGCAAGATCAATGATGACTGTACG
CTCCCACGGTGGCACATGAACGACTTCTTCCACTCCTTCCTGATTGTGTTCCGCGTGCTG
TGTGGAGAGTGGATAGAGACCATGTGGGACTGTATGGAGGTCGCTGGCCAAACCATGTGC
CTTATTGTTTTCATGTTGGTCATGGTCATTGGAAACCTTGTGGTTCTGAACCTCTTTCTG
GCCTTATTGTTGAGTTCATTTAGCTCAGACAACCTTGCTGCTACTGATGATGACAATGAA
ATGAATAATCTGCAGATTGCAGTAGGAAGAATGCAAAAGGGAATTGATTATGTGAAAAAT
AAGATGCGGGAGTGTTTCCAAAAAGCCTTTTTTAGAAAGCCAAAAGTTATAGAAATCCAT
GAAGGCAATAAGATAGACAGCTGCATGTCCAATAATACTGGAATTGAAATAAGCAAAGAG
CTTAATTATCTTAGAGATGGGAATGGAACCACCAGTGGTGTAGGTACTGGAAGCAGTGTT
GAAAAATACGTAATCGATGAAAATGATTATATGTCATTCATAAACAACCCCAGCCTCACC
GTCACAGTGCCAATTGCTGTTGGAGAGTCTGACTTTGAAAACTTAAATACTGAAGAGTTC
AGCAGTGAGTCAGAACTAGAAGAAAGCAAAGAGAAATTAAATGCAACCAGCTCATCTGAA
GGAAGCACAGTTGATGTTGTTCTACCCCGAGAAGGTGAACAAGCTGAAACTGAACCCGAA
GAAGACCTTAAACCGGAAGCTTGTTTTACTGAAGGATGTATTAAAAAGTTTCCATTCTGT
CAAGTAAGTACAGAAGAAGGCAAAGGGAAGATCTGGTGGAATCTTCGAAAAACCTGCTAC
AGTATTGTTGAGCACAACTGGTTTGAGACTTTCATTGTGTTCATGATCCTTCTCAGTAGT
GGTGCATTGGCCTTTGAAGATATATACATTGAACAGCGAAAGACTATCAAAACCATGCTA
GAATATGCTGACAAAGTCTTTACCTATATATTCATTCTGGAAATGCTTCTCAAATGGGTT
GCTTATGGATTTCAAACATATTTCACTAATGCCTGGTGCTGGCTAGATTTCTTGATCGTT
GATGTTTCTTTGGTTAGCCTGGTAGCCAATGCTCTTGGCTACTCAGAACTCGGTGCCATC
AAATCATTACGGACATTAAGAGCTTTAAGACCTCTAAGAGCCTTATCCCGGTTTGAAGGC
ATGAGGGTGGTTGTGAATGCTCTTGTTGGAGCAATTCCCTCTATCATGAATGTGCTGTTG
GTCTGTCTCATCTTCTGGTTGATCTTTAGCATCATGGGTGTGAATTTGTTTGCTGGCAAG
TTCTACCACTGTGTTAACATGACAACGGGTAACATGTTTGACATTAGTGATGTTAACAAT
TTGAGTGACTGTCAGGCTCTTGGCAAGCAAGCTCGGTGGAAAAACGTGAAAGTAAACTTT
GATAATGTTGGCGCTGGCTATCTTGCACTGCTTCAAGTGGCCACATTTAAAGGCTGGATG
GATATTATGTATGCAGCTGTTGATTCACGAGATGTTAAACTTCAGCCTGTATATGAAGAA
AATCTGTACATGTATTTATACTTTGTCATCTTTATCATCTTTGGGTCATTCTTCACTCTG
AATCTATTCATTGGTGTCATCATAGATAACTTCAACCAGCAGAAAAAGAAGTTTGGAGGT
CAAGACATCTTTATGACAGAGGAACAGAAAAAATATTACAATGCAATGAAGAAACTTGGA
TCCAAGAAACCTCAGAAACCCATACCTCGCCCAGCAAACAAATTCCAAGGAATGGTCTTT
GATTTTGTAACCAGACAAGTCTTTGATATCAGCATCATGATCCTCATCTGCCTCAACATG
GTCACCATGATGGTGGAAACGGATGACCAGGGCAAATACATGACCCTAGTTTTGTCCCGG
ATCAACCTAGTGTTCATTGTTCTGTTCACTGGAGAATTTGTGCTGAAGCTCGTCTCCCTC
AGACACTACTACTTCACTATAGGCTGGAACATCTTTGACTTTGTGGTGGTGATTCTCTCC
ATTGTAGGTATGTTTCTGGCTGAGATGATAGAAAAGTATTTTGTGTCCCCTACCTTGTTC
CGAGTGATCCGTCTTGCCAGGATTGGCCGAATCCTACGTCTGATCAAAGGAGCAAAGGGG
ATCCGCACGCTGCTCTTTGCTTTGATGATGTCCCTTCCTGCGTTGTTTAACATCGGCCTC
CTGCTCTTCCTGGTCATGTTTATCTATGCCATCTTTGGGATGTCCAACTTTGCCTATGTT
AAAAAGGAAGCTGGAATTGATGACATGTTCAACTTTGAGACCTTTGGCAACAGCATGATC
TGCTTGTTCCAAATTACAACCTCTGCTGGCTGGGATGGATTGCTAGCACCTATTCTTAAT
AGTGCACCACCCGACTGTGACCCTGACACAATTCACCCTGGCAGCTCAGTTAAGGGAGAC
TGTGGGAACCCATCTGTTGGGATTTTCTTTTTTGTCAGTTACATCATCATATCCTTCCTG
GTTGTGGTGAACATGTACATCGCGGTCATCCTGGAGAACTTCAGTGTTGCTACTGAAGAA
AGTGCAGAGCCCCTGAGTGAGGATGACTTTGAGATGTTCTATGAGGTTTGGGAAAAGTTT
GATCCCGATGCGACCCAGTTTATAGAGTTCTCTAAACTCTCTGATTTTGCAGCTGCCCTG
GATCCTCCTCTTCTCATAGCAAAACCCAACAAAGTCCAGCTTATTGCCATGGATCTGCCC
ATGGTCAGTGGTGACCGGATCCACTGTCTTGATATTTTATTTGCCTTTACAAAGCGTGTT
TTGGGTGAGAGTGGAGAGATGGATGCCCTTCGAATACAGATGGAAGACAGGTTTATGGCA
TCAAACCCCTCCAAAGTCTCTTATGAGCCTATTACAACCACTTTGAAACGTAAACAAGAG
GAGGTGTCTGCCGCTATCATTCAGCGTAATTTCAGATGTTATCTTTTAAAGCAAAGGTTA
AAAAATATATCAAGTAACTATAACAAAGAGGCAATTAAAGGGAGGATTGACTTACCTATA
AAACAAGACATGATTATTGACAAACTAAATGGGAACTCCACTCCAGAAAAAACAGATGGG
AGTTCCTCTACCACCTCTCCTCCTTCCTATGATAGTGTAACAAAACCAGACAAGGAAAAG
TTTGAGAAAGACAAACCAGAAAAAGAAAGCAAAGGAAAAGAGGTCAGAGAAAATCAAAAG
TAA
Protein Properties
Number of Residues 2000
Molecular Weight 226291.9
Theoretical pI 5.49
Pfam Domain Function
Signals
  • ["None"]
Transmembrane Regions
  • ["124-147", "156-175", "189-207", "214-233", "249-273", "401-426", "755-779", "791-814", "823-842", "849-869", "885-905", "959-984", "1202-1225", "1239-1264", "1271-1292", "1297-1318", "1338-1359", "1442-1468", "1522-1545", "1557-1580", "1587-1610", "1621-1642", "1658-1680", "1747-1771"]
Protein Sequence
>Sodium channel protein type 3 subunit alpha
MAQALLVPPGPESFRLFTRESLAAIEKRAAEEKAKKPKKEQDNDDENKPKPNSDLEAGKN
LPFIYGDIPPEMVSEPLEDLDPYYINKKTFIVMNKGKAIFRFSATSALYILTPLNPVRKI
AIKILVHSLFSMLIMCTILTNCVFMTLSNPPDWTKNVEYTFTGIYTFESLIKILARGFCL
EDFTFLRDPWNWLDFSVIVMAYVTEFVSLGNVSALRTFRVLRALKTISVIPGLKTIVGAL
IQSVKKLSDVMILTVFCLSVFALIGLQLFMGNLRNKCLQWPPSDSAFETNTTSYFNGTMD
SNGTFVNVTMSTFNWKDYIGDDSHFYVLDGQKDPLLCGNGSDAGQCPEGYICVKAGRNPN
YGYTSFDTFSWAFLSLFRLMTQDYWENLYQLTLRAAGKTYMIFFVLVIFLGSFYLVNLIL
AVVAMAYEEQNQATLEEAEQKEAEFQQMLEQLKKQQEEAQAVAAASAASRDFSGIGGLGE
LLESSSEASKLSSKSAKEWRNRRKKRRQREHLEGNNKGERDSFPKSESEDSVKRSSFLFS
MDGNRLTSDKKFCSPHQSLLSIRGSLFSPRRNSKTSIFSFRGRAKDVGSENDFADDEHST
FEDSESRRDSLFVPHRHGERRNSNVSQASMSSRMVPGLPANGKMHSTVDCNGVVSLVGGP
SALTSPTGQLPPEGTTTETEVRKRRLSSYQISMEMLEDSSGRQRAVSIASILTNTMEELE
ESRQKCPPCWYRFANVFLIWDCCDAWLKVKHLVNLIVMDPFVDLAITICIVLNTLFMAME
HYPMTEQFSSVLTVGNLVFTGIFTAEMVLKIIAMDPYYYFQEGWNIFDGIIVSLSLMELG
LSNVEGLSVLRSFRLLRVFKLAKSWPTLNMLIKIIGNSVGALGNLTLVLAIIVFIFAVVG
MQLFGKSYKECVCKINDDCTLPRWHMNDFFHSFLIVFRVLCGEWIETMWDCMEVAGQTMC
LIVFMLVMVIGNLVVLNLFLALLLSSFSSDNLAATDDDNEMNNLQIAVGRMQKGIDYVKN
KMRECFQKAFFRKPKVIEIHEGNKIDSCMSNNTGIEISKELNYLRDGNGTTSGVGTGSSV
EKYVIDENDYMSFINNPSLTVTVPIAVGESDFENLNTEEFSSESELEESKEKLNATSSSE
GSTVDVVLPREGEQAETEPEEDLKPEACFTEGCIKKFPFCQVSTEEGKGKIWWNLRKTCY
SIVEHNWFETFIVFMILLSSGALAFEDIYIEQRKTIKTMLEYADKVFTYIFILEMLLKWV
AYGFQTYFTNAWCWLDFLIVDVSLVSLVANALGYSELGAIKSLRTLRALRPLRALSRFEG
MRVVVNALVGAIPSIMNVLLVCLIFWLIFSIMGVNLFAGKFYHCVNMTTGNMFDISDVNN
LSDCQALGKQARWKNVKVNFDNVGAGYLALLQVATFKGWMDIMYAAVDSRDVKLQPVYEE
NLYMYLYFVIFIIFGSFFTLNLFIGVIIDNFNQQKKKFGGQDIFMTEEQKKYYNAMKKLG
SKKPQKPIPRPANKFQGMVFDFVTRQVFDISIMILICLNMVTMMVETDDQGKYMTLVLSR
INLVFIVLFTGEFVLKLVSLRHYYFTIGWNIFDFVVVILSIVGMFLAEMIEKYFVSPTLF
RVIRLARIGRILRLIKGAKGIRTLLFALMMSLPALFNIGLLLFLVMFIYAIFGMSNFAYV
KKEAGIDDMFNFETFGNSMICLFQITTSAGWDGLLAPILNSAPPDCDPDTIHPGSSVKGD
CGNPSVGIFFFVSYIIISFLVVVNMYIAVILENFSVATEESAEPLSEDDFEMFYEVWEKF
DPDATQFIEFSKLSDFAAALDPPLLIAKPNKVQLIAMDLPMVSGDRIHCLDILFAFTKRV
LGESGEMDALRIQMEDRFMASNPSKVSYEPITTTLKRKQEEVSAAIIQRNFRCYLLKQRL
KNISSNYNKEAIKGRIDLPIKQDMIIDKLNGNSTPEKTDGSSSTTSPPSYDSVTKPDKEK
FEKDKPEKESKGKEVRENQK
GenBank ID Protein 126362949
UniProtKB/Swiss-Prot ID Q9NY46
UniProtKB/Swiss-Prot Entry Name SCN3A_HUMAN
PDB IDs
GenBank Gene ID NM_006922.3
GeneCard ID SCN3A
GenAtlas ID SCN3A
HGNC ID HGNC:10590
References
General References Not Available