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Identification
HMDB Protein ID HMDBP09089
Secondary Accession Numbers
  • 14833
Name Sodium channel protein type 9 subunit alpha
Synonyms
  1. Neuroendocrine sodium channel
  2. PN1
  3. Peripheral sodium channel 1
  4. Sodium channel protein type IX subunit alpha
  5. Voltage-gated sodium channel subunit alpha Nav1.7
  6. hNE-Na
Gene Name SCN9A
Protein Type Unknown
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. It is a tetrodotoxin-sensitive Na(+) channel isoform. Plays a role in pain mechanisms, especially in the development of inflammatory pain
Pathways Not Available
Reactions Not Available
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
Gene Properties
Chromosome Location Chromosome:2
Locus 2q24
SNPs SCN9A
Gene Sequence
>5934 bp
ATGGCAATGTTGCCTCCCCCAGGACCTCAGAGCTTTGTCCATTTCACAAAACAGTCTCTT
GCCCTCATTGAACAACGCATTGCTGAAAGAAAATCAAAGGAACCCAAAGAAGAAAAGAAA
GATGATGATGAAGAAGCCCCAAAGCCAAGCAGTGACTTGGAAGCTGGCAAACAGCTGCCC
TTCATCTATGGGGACATTCCTCCCGGCATGGTGTCAGAGCCCCTGGAGGACTTGGACCCC
TACTATGCAGACAAAAAGACTTTCATAGTATTGAACAAAGGGAAAACAATCTTCCGTTTC
AATGCCACACCTGCTTTATATATGCTTTCTCCTTTCAGTCCTCTAAGAAGAATATCTATT
AAGATTTTAGTACACTCCTTATTCAGCATGCTCATCATGTGCACTATTCTGACAAACTGC
ATATTTATGACCATGAATAACCCACCGGACTGGACCAAAAATGTCGAGTACACTTTTACT
GGAATATATACTTTTGAATCACTTGTAAAAATCCTTGCAAGAGGCTTCTGTGTAGGAGAA
TTCACTTTTCTTCGTGACCCGTGGAACTGGCTGGATTTTGTCGTCATTGTTTTTGCGTAT
TTAACAGAATTTGTAAACCTAGGCAATGTTTCAGCTCTTCGAACTTTCAGAGTATTGAGA
GCTTTGAAAACTATTTCTGTAATCCCAGGCCTGAAGACAATTGTAGGGGCTTTGATCCAG
TCAGTGAAGAAGCTTTCTGATGTCATGATCCTGACTGTGTTCTGTCTGAGTGTGTTTGCA
CTAATTGGACTACAGCTGTTCATGGGAAACCTGAAGCATAAATGTTTTCGAAATTCACTT
GAAAATAATGAAACATTAGAAAGCATAATGAATACCCTAGAGAGTGAAGAAGACTTTAGA
AAATATTTTTATTACTTGGAAGGATCCAAAGATGCTCTCCTTTGTGGTTTCAGCACAGAT
TCAGGTCAGTGTCCAGAGGGGTACACCTGTGTGAAAATTGGCAGAAACCCTGATTATGGC
TACACGAGCTTTGACACTTTCAGCTGGGCCTTCTTAGCCTTGTTTAGGCTAATGACCCAA
GATTACTGGGAAAACCTTTACCAACAGACGCTGCGTGCTGCTGGCAAAACCTACATGATC
TTCTTTGTCGTAGTGATTTTCCTGGGCTCCTTTTATCTAATAAACTTGATCCTGGCTGTG
GTTGCCATGGCATATGAAGAACAGAACCAGGCAAACATTGAAGAAGCTAAACAGAAAGAA
TTAGAATTTCAACAGATGTTAGACCGTCTTAAAAAAGAGCAAGAAGAAGCTGAGGCAATT
GCAGCGGCAGCGGCTGAATATACAAGTATTAGGAGAAGCAGAATTATGGGCCTCTCAGAG
AGTTCTTCTGAAACATCCAAACTGAGCTCTAAAAGTGCTAAAGAAAGAAGAAACAGAAGA
AAGAAAAAGAATCAAAAGAAGCTCTCCAGTGGAGAGGAAAAGGGAGATGCTGAGAAATTG
TCGAAATCAGAATCAGAGGACAGCATCAGAAGAAAAAGTTTCCACCTTGGTGTCGAAGGG
CATAGGCGAGCACATGAAAAGAGGTTGTCTACCCCCAATCAGTCACCACTCAGCATTCGT
GGCTCCTTGTTTTCTGCAAGGCGAAGCAGCAGAACAAGTCTTTTTAGTTTCAAAGGCAGA
GGAAGAGATATAGGATCTGAGACTGAATTTGCCGATGATGAGCACAGCATTTTTGGAGAC
AATGAGAGCAGAAGGGGCTCACTGTTTGTGCCCCACAGACCCCAGGAGCGACGCAGCAGT
AACATCAGCCAAGCCAGTAGGTCCCCACCAATGCTGCCGGTGAACGGGAAAATGCACAGT
GCTGTGGACTGCAACGGTGTGGTCTCCCTGGTTGATGGACGCTCAGCCCTCATGCTCCCC
AATGGACAGCTTCTGCCAGAGGGCACGACCAATCAAATACACAAGAAAAGGCGTTGTAGT
TCCTATCTCCTTTCAGAGGATATGCTGAATGATCCCAACCTCAGACAGAGAGCAATGAGT
AGAGCAAGCATATTAACAAACACTGTGGAAGAACTTGAAGAGTCCAGACAAAAATGTCCA
CCTTGGTGGTACAGATTTGCACACAAATTCTTGATCTGGAATTGCTCTCCATATTGGATA
AAATTCAAAAAGTGTATCTATTTTATTGTAATGGATCCTTTTGTAGATCTTGCAATTACC
ATTTGCATAGTTTTAAACACATTATTTATGGCTATGGAACACCACCCAATGACTGAGGAA
TTCAAAAATGTACTTGCTATAGGAAATTTGGTCTTTACTGGAATCTTTGCAGCTGAAATG
GTATTAAAACTGATTGCCATGGATCCATATGAGTATTTCCAAGTAGGCTGGAATATTTTT
GACAGCCTTATTGTGACTTTAAGTTTAGTGGAGCTCTTTCTAGCAGATGTGGAAGGATTG
TCAGTTCTGCGATCATTCAGACTGCTCCGAGTCTTCAAGTTGGCAAAATCCTGGCCAACA
TTGAACATGCTGATTAAGATCATTGGTAACTCAGTAGGGGCTCTAGGTAACCTCACCTTA
GTGTTGGCCATCATCGTCTTCATTTTTGCTGTGGTCGGCATGCAGCTCTTTGGTAAGAGC
TACAAAGAATGTGTCTGCAAGATCAATGATGACTGTACGCTCCCACGGTGGCACATGAAC
GACTTCTTCCACTCCTTCCTGATTGTGTTCCGCGTGCTGTGTGGAGAGTGGATAGAGACC
ATGTGGGACTGTATGGAGGTCGCTGGTCAAGCTATGTGCCTTATTGTTTACATGATGGTC
ATGGTCATTGGAAACCTGGTGGTCCTAAACCTATTTCTGGCCTTATTATTGAGCTCATTT
AGTTCAGACAATCTTACAGCAATTGAAGAAGACCCTGATGCAAACAACCTCCAGATTGCA
GTGACTAGAATTAAAAAGGGAATAAATTATGTGAAACAAACCTTACGTGAATTTATTCTA
AAAGCATTTTCCAAAAAGCCAAAGATTTCCAGGGAGATAAGACAAGCAGAAGATCTGAAT
ACTAAGAAGGAAAACTATATTTCTAACCATACACTTGCTGAAATGAGCAAAGGTCACAAT
TTCCTCAAGGAAAAAGATAAAATCAGTGGTTTTGGAAGCAGCGTGGACAAACACTTGATG
GAAGACAGTGATGGTCAATCATTTATTCACAATCCCAGCCTCACAGTGACAGTGCCAATT
GCACCTGGGGAATCCGATTTGGAAAATATGAATGCTGAGGAACTTAGCAGTGATTCGGAT
AGTGAATACAGCAAAGTGAGATTAAACCGGTCAAGCTCCTCAGAGTGCAGCACAGTTGAT
AACCCTTTGCCTGGAGAAGGAGAAGAAGCAGAGGCTGAACCTATGAATTCCGATGAGCCA
GAGGCCTGTTTCACAGATGGTTGTGTACGGAGGTTCTCATGCTGCCAAGTTAACATAGAG
TCAGGGAAAGGAAAAATCTGGTGGAACATCAGGAAAACCTGCTACAAGATTGTTGAACAC
AGTTGGTTTGAAAGCTTCATTGTCCTCATGATCCTGCTCAGCAGTGGTGCCCTGGCTTTT
GAAGATATTTATATTGAAAGGAAAAAGACCATTAAGATTATCCTGGAGTATGCAGACAAG
ATCTTCACTTACATCTTCATTCTGGAAATGCTTCTAAAATGGATAGCATATGGTTATAAA
ACATATTTCACCAATGCCTGGTGTTGGCTGGATTTCCTAATTGTTGATGTTTCTTTGGTT
ACTTTAGTGGCAAACACTCTTGGCTACTCAGATCTTGGCCCCATTAAATCCCTTCGGACA
CTGAGAGCTTTAAGACCTCTAAGAGCCTTATCTAGATTTGAAGGAATGAGGGTCGTTGTG
AATGCACTCATAGGAGCAATTCCTTCCATCATGAATGTGCTACTTGTGTGTCTTATATTC
TGGCTGATATTCAGCATCATGGGAGTAAATTTGTTTGCTGGCAAGTTCTATGAGTGTATT
AACACCACAGATGGGTCACGGTTTCCTGCAAGTCAAGTTCCAAATCGTTCCGAATGTTTT
GCCCTTATGAATGTTAGTCAAAATGTGCGATGGAAAAACCTGAAAGTGAACTTTGATAAT
GTCGGACTTGGTTACCTATCTCTGCTTCAAGTTGCAACTTTTAAGGGATGGACGATTATT
ATGTATGCAGCAGTGGATTCTGTTAATGTAGACAAGCAGCCCAAATATGAATATAGCCTC
TACATGTATATTTATTTTGTCGTCTTTATCATCTTTGGGTCATTCTTCACTTTGAACTTG
TTCATTGGTGTCATCATAGATAATTTCAACCAACAGAAAAAGAAGCTTGGAGGTCAAGAC
ATCTTTATGACAGAAGAACAGAAGAAATACTATAATGCAATGAAAAAGCTGGGGTCCAAG
AAGCCACAAAAGCCAATTCCTCGACCAGGGAACAAAATCCAAGGATGTATATTTGACCTA
GTGACAAATCAAGCCTTTGATATTAGTATCATGGTTCTTATCTGTCTCAACATGGTAACC
ATGATGGTAGAAAAGGAGGGTCAAAGTCAACATATGACTGAAGTTTTATATTGGATAAAT
GTGGTTTTTATAATCCTTTTCACTGGAGAATGTGTGCTAAAACTGATCTCCCTCAGACAC
TACTACTTCACTGTAGGATGGAATATTTTTGATTTTGTGGTTGTGATTATCTCCATTGTA
GGTATGTTTCTAGCTGATTTGATTGAAACGTATTTTGTGTCCCCTACCCTGTTCCGAGTG
ATCCGTCTTGCCAGGATTGGCCGAATCCTACGTCTAGTCAAAGGAGCAAAGGGGATCCGC
ACGCTGCTCTTTGCTTTGATGATGTCCCTTCCTGCGTTGTTTAACATCGGCCTCCTGCTC
TTCCTGGTCATGTTCATCTACGCCATCTTTGGAATGTCCAACTTTGCCTATGTTAAAAAG
GAAGATGGAATTAATGACATGTTCAATTTTGAGACCTTTGGCAACAGTATGATTTGCCTG
TTCCAAATTACAACCTCTGCTGGCTGGGATGGATTGCTAGCACCTATTCTTAACAGTAAG
CCACCCGACTGTGACCCAAAAAAAGTTCATCCTGGAAGTTCAGTTGAAGGAGACTGTGGT
AACCCATCTGTTGGAATATTCTACTTTGTTAGTTATATCATCATATCCTTCCTGGTTGTG
GTGAACATGTACATTGCAGTCATACTGGAGAATTTTAGTGTTGCCACTGAAGAAAGTACT
GAACCTCTGAGTGAGGATGACTTTGAGATGTTCTATGAGGTTTGGGAGAAGTTTGATCCC
GATGCGACCCAGTTTATAGAGTTCTCTAAACTCTCTGATTTTGCAGCTGCCCTGGATCCT
CCTCTTCTCATAGCAAAACCCAACAAAGTCCAGCTCATTGCCATGGATCTGCCCATGGTT
AGTGGTGACCGGATCCATTGTCTTGACATCTTATTTGCTTTTACAAAGCGTGTTTTGGGT
GAGAGTGGGGAGATGGATTCTCTTCGTTCACAGATGGAAGAAAGGTTCATGTCTGCAAAT
CCTTCCAAAGTGTCCTATGAACCCATCACAACCACACTAAAACGGAAACAAGAGGATGTG
TCTGCTACTGTCATTCAGCGTGCTTATAGACGTTACCGCTTAAGGCAAAATGTCAAAAAT
ATATCAAGTATATACATAAAAGATGGAGACAGAGATGATGATTTACTCAATAAAAAAGAT
ATGGCTTTTGATAATGTTAATGAGAACTCAAGTCCAGAAAAAACAGATGCCACTTCATCC
ACCACCTCTCCACCTTCATATGATAGTGTAACAAAGCCAGACAAAGAGAAATATGAACAA
GACAGAACAGAAAAGGAAGACAAAGGGAAAGACAGCAAGGAAAGCAAAAAATAG
Protein Properties
Number of Residues 1988
Molecular Weight 226340.1
Theoretical pI 6.98
Pfam Domain Function
Signals
  • None
Transmembrane Regions
  • 122-145
  • 154-173
  • 187-205
  • 212-231
  • 248-271
  • 379-404
  • 739-763
  • 775-798
  • 807-826
  • 833-852
  • 869-889
  • 943-968
  • 1188-1211
  • 1225-1250
  • 1257-1278
  • 1283-1304
  • 1324-1351
  • 1431-1457
  • 1511-1534
  • 1546-1569
  • 1576-1599
  • 1610-1631
  • 1647-1669
  • 1736-1760
Protein Sequence
>Sodium channel protein type 9 subunit alpha
MAMLPPPGPQSFVHFTKQSLALIEQRIAERKSKEPKEEKKDDDEEAPKPSSDLEAGKQLP
FIYGDIPPGMVSEPLEDLDPYYADKKTFIVLNKGKTIFRFNATPALYMLSPFSPLRRISI
KILVHSLFSMLIMCTILTNCIFMTMNNPPDWTKNVEYTFTGIYTFESLVKILARGFCVGE
FTFLRDPWNWLDFVVIVFAYLTEFVNLGNVSALRTFRVLRALKTISVIPGLKTIVGALIQ
SVKKLSDVMILTVFCLSVFALIGLQLFMGNLKHKCFRNSLENNETLESIMNTLESEEDFR
KYFYYLEGSKDALLCGFSTDSGQCPEGYTCVKIGRNPDYGYTSFDTFSWAFLALFRLMTQ
DYWENLYQQTLRAAGKTYMIFFVVVIFLGSFYLINLILAVVAMAYEEQNQANIEEAKQKE
LEFQQMLDRLKKEQEEAEAIAAAAAEYTSIRRSRIMGLSESSSETSKLSSKSAKERRNRR
KKKNQKKLSSGEEKGDAEKLSKSESEDSIRRKSFHLGVEGHRRAHEKRLSTPNQSPLSIR
GSLFSARRSSRTSLFSFKGRGRDIGSETEFADDEHSIFGDNESRRGSLFVPHRPQERRSS
NISQASRSPPMLPVNGKMHSAVDCNGVVSLVDGRSALMLPNGQLLPEVIIDKATSDDSGT
TNQIHKKRRCSSYLLSEDMLNDPNLRQRAMSRASILTNTVEELEESRQKCPPWWYRFAHK
FLIWNCSPYWIKFKKCIYFIVMDPFVDLAITICIVLNTLFMAMEHHPMTEEFKNVLAIGN
LVFTGIFAAEMVLKLIAMDPYEYFQVGWNIFDSLIVTLSLVELFLADVEGLSVLRSFRLL
RVFKLAKSWPTLNMLIKIIGNSVGALGNLTLVLAIIVFIFAVVGMQLFGKSYKECVCKIN
DDCTLPRWHMNDFFHSFLIVFRVLCGEWIETMWDCMEVAGQAMCLIVYMMVMVIGNLVVL
NLFLALLLSSFSSDNLTAIEEDPDANNLQIAVTRIKKGINYVKQTLREFILKAFSKKPKI
SREIRQAEDLNTKKENYISNHTLAEMSKGHNFLKEKDKISGFGSSVDKHLMEDSDGQSFI
HNPSLTVTVPIAPGESDLENMNAEELSSDSDSEYSKVRLNRSSSSECSTVDNPLPGEGEE
AEAEPMNSDEPEACFTDGCVRRFSCCQVNIESGKGKIWWNIRKTCYKIVEHSWFESFIVL
MILLSSGALAFEDIYIERKKTIKIILEYADKIFTYIFILEMLLKWIAYGYKTYFTNAWCW
LDFLIVDVSLVTLVANTLGYSDLGPIKSLRTLRALRPLRALSRFEGMRVVVNALIGAIPS
IMNVLLVCLIFWLIFSIMGVNLFAGKFYECINTTDGSRFPASQVPNRSECFALMNVSQNV
RWKNLKVNFDNVGLGYLSLLQVATFKGWTIIMYAAVDSVNVDKQPKYEYSLYMYIYFVVF
IIFGSFFTLNLFIGVIIDNFNQQKKKLGGQDIFMTEEQKKYYNAMKKLGSKKPQKPIPRP
GNKIQGCIFDLVTNQAFDISIMVLICLNMVTMMVEKEGQSQHMTEVLYWINVVFIILFTG
ECVLKLISLRHYYFTVGWNIFDFVVVIISIVGMFLADLIETYFVSPTLFRVIRLARIGRI
LRLVKGAKGIRTLLFALMMSLPALFNIGLLLFLVMFIYAIFGMSNFAYVKKEDGINDMFN
FETFGNSMICLFQITTSAGWDGLLAPILNSKPPDCDPKKVHPGSSVEGDCGNPSVGIFYF
VSYIIISFLVVVNMYIAVILENFSVATEESTEPLSEDDFEMFYEVWEKFDPDATQFIEFS
KLSDFAAALDPPLLIAKPNKVQLIAMDLPMVSGDRIHCLDILFAFTKRVLGESGEMDSLR
SQMEERFMSANPSKVSYEPITTTLKRKQEDVSATVIQRAYRRYRLRQNVKNISSIYIKDG
DRDDDLLNKKDMAFDNVNENSSPEKTDATSSTTSPPSYDSVTKPDKEKYEQDRTEKEDKG
KDSKESKK
GenBank ID Protein 4506813
UniProtKB/Swiss-Prot ID Q15858
UniProtKB/Swiss-Prot Entry Name SCN9A_HUMAN
PDB IDs Not Available
GenBank Gene ID Not Available
GeneCard ID SCN9A
GenAtlas ID SCN9A
HGNC ID HGNC:10597
References
General References
  1. Yu LR, Zhu Z, Chan KC, Issaq HJ, Dimitrov DS, Veenstra TD: Improved titanium dioxide enrichment of phosphopeptides from HeLa cells and high confident phosphopeptide identification by cross-validation of MS/MS and MS/MS/MS spectra. J Proteome Res. 2007 Nov;6(11):4150-62. Epub 2007 Oct 9. [PubMed:17924679 ]
  2. Klugbauer N, Lacinova L, Flockerzi V, Hofmann F: Structure and functional expression of a new member of the tetrodotoxin-sensitive voltage-activated sodium channel family from human neuroendocrine cells. EMBO J. 1995 Mar 15;14(6):1084-90. [PubMed:7720699 ]
  3. Cox JJ, Reimann F, Nicholas AK, Thornton G, Roberts E, Springell K, Karbani G, Jafri H, Mannan J, Raashid Y, Al-Gazali L, Hamamy H, Valente EM, Gorman S, Williams R, McHale DP, Wood JN, Gribble FM, Woods CG: An SCN9A channelopathy causes congenital inability to experience pain. Nature. 2006 Dec 14;444(7121):894-8. [PubMed:17167479 ]
  4. Raymond CK, Castle J, Garrett-Engele P, Armour CD, Kan Z, Tsinoremas N, Johnson JM: Expression of alternatively spliced sodium channel alpha-subunit genes. Unique splicing patterns are observed in dorsal root ganglia. J Biol Chem. 2004 Oct 29;279(44):46234-41. Epub 2004 Aug 9. [PubMed:15302875 ]
  5. Yang Y, Wang Y, Li S, Xu Z, Li H, Ma L, Fan J, Bu D, Liu B, Fan Z, Wu G, Jin J, Ding B, Zhu X, Shen Y: Mutations in SCN9A, encoding a sodium channel alpha subunit, in patients with primary erythermalgia. J Med Genet. 2004 Mar;41(3):171-4. [PubMed:14985375 ]
  6. Sangameswaran L, Fish LM, Koch BD, Rabert DK, Delgado SG, Ilnicka M, Jakeman LB, Novakovic S, Wong K, Sze P, Tzoumaka E, Stewart GR, Herman RC, Chan H, Eglen RM, Hunter JC: A novel tetrodotoxin-sensitive, voltage-gated sodium channel expressed in rat and human dorsal root ganglia. J Biol Chem. 1997 Jun 6;272(23):14805-9. [PubMed:9169448 ]
  7. Jo T, Nagata T, Iida H, Imuta H, Iwasawa K, Ma J, Hara K, Omata M, Nagai R, Takizawa H, Nagase T, Nakajima T: Voltage-gated sodium channel expressed in cultured human smooth muscle cells: involvement of SCN9A. FEBS Lett. 2004 Jun 4;567(2-3):339-43. [PubMed:15178348 ]
  8. Cummins TR, Dib-Hajj SD, Waxman SG: Electrophysiological properties of mutant Nav1.7 sodium channels in a painful inherited neuropathy. J Neurosci. 2004 Sep 22;24(38):8232-6. [PubMed:15385606 ]
  9. Michiels JJ, te Morsche RH, Jansen JB, Drenth JP: Autosomal dominant erythermalgia associated with a novel mutation in the voltage-gated sodium channel alpha subunit Nav1.7. Arch Neurol. 2005 Oct;62(10):1587-90. [PubMed:16216943 ]
  10. Dib-Hajj SD, Rush AM, Cummins TR, Hisama FM, Novella S, Tyrrell L, Marshall L, Waxman SG: Gain-of-function mutation in Nav1.7 in familial erythromelalgia induces bursting of sensory neurons. Brain. 2005 Aug;128(Pt 8):1847-54. Epub 2005 Jun 15. [PubMed:15958509 ]
  11. Fertleman CR, Baker MD, Parker KA, Moffatt S, Elmslie FV, Abrahamsen B, Ostman J, Klugbauer N, Wood JN, Gardiner RM, Rees M: SCN9A mutations in paroxysmal extreme pain disorder: allelic variants underlie distinct channel defects and phenotypes. Neuron. 2006 Dec 7;52(5):767-74. [PubMed:17145499 ]
  12. Rush AM, Dib-Hajj SD, Liu S, Cummins TR, Black JA, Waxman SG: A single sodium channel mutation produces hyper- or hypoexcitability in different types of neurons. Proc Natl Acad Sci U S A. 2006 May 23;103(21):8245-50. Epub 2006 May 15. [PubMed:16702558 ]