Target Information

General Information of This Target
Target ID
BTDT00078
Target Name
Sodium channel protein type 1 subunit alpha (SCN1A)
Target Bioclass
Transporter and channel
Uniprot ID
P35498
3D Structure
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2D Sequence
3D Structure
Source
Predict by Alphafold2
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Alphafold Parameters: msa_mode: mmseqs2_uniref_env model_type: auto num_recycles: auto
Gene Name
SCN1A
Gene ID
6323
Synonym
NAC1; SCN1; Sodium channel protein brain I subunit alpha; Sodium channel protein type I subunit alpha; Voltage-gated sodium channel subunit alpha Nav1.1
Sequence
MEQTVLVPPGPDSFNFFTRESLAAIERRIAEEKAKNPKPDKKDDDENGPKPNSDLEAGKN
LPFIYGDIPPEMVSEPLEDLDPYYINKKTFIVLNKGKAIFRFSATSALYILTPFNPLRKI
AIKILVHSLFSMLIMCTILTNCVFMTMSNPPDWTKNVEYTFTGIYTFESLIKIIARGFCL
EDFTFLRDPWNWLDFTVITFAYVTEFVDLGNVSALRTFRVLRALKTISVIPGLKTIVGAL
IQSVKKLSDVMILTVFCLSVFALIGLQLFMGNLRNKCIQWPPTNASLEEHSIEKNITVNY
NGTLINETVFEFDWKSYIQDSRYHYFLEGFLDALLCGNSSDAGQCPEGYMCVKAGRNPNY
GYTSFDTFSWAFLSLFRLMTQDFWENLYQLTLRAAGKTYMIFFVLVIFLGSFYLINLILA
VVAMAYEEQNQATLEEAEQKEAEFQQMIEQLKKQQEAAQQAATATASEHSREPSAAGRLS
DSSSEASKLSSKSAKERRNRRKKRKQKEQSGGEEKDEDEFQKSESEDSIRRKGFRFSIEG
NRLTYEKRYSSPHQSLLSIRGSLFSPRRNSRTSLFSFRGRAKDVGSENDFADDEHSTFED
NESRRDSLFVPRRHGERRNSNLSQTSRSSRMLAVFPANGKMHSTVDCNGVVSLVGGPSVP
TSPVGQLLPEVIIDKPATDDNGTTTETEMRKRRSSSFHVSMDFLEDPSQRQRAMSIASIL
TNTVEELEESRQKCPPCWYKFSNIFLIWDCSPYWLKVKHVVNLVVMDPFVDLAITICIVL
NTLFMAMEHYPMTDHFNNVLTVGNLVFTGIFTAEMFLKIIAMDPYYYFQEGWNIFDGFIV
TLSLVELGLANVEGLSVLRSFRLLRVFKLAKSWPTLNMLIKIIGNSVGALGNLTLVLAII
VFIFAVVGMQLFGKSYKDCVCKIASDCQLPRWHMNDFFHSFLIVFRVLCGEWIETMWDCM
EVAGQAMCLTVFMMVMVIGNLVVLNLFLALLLSSFSADNLAATDDDNEMNNLQIAVDRMH
KGVAYVKRKIYEFIQQSFIRKQKILDEIKPLDDLNNKKDSCMSNHTAEIGKDLDYLKDVN
GTTSGIGTGSSVEKYIIDESDYMSFINNPSLTVTVPIAVGESDFENLNTEDFSSESDLEE
SKEKLNESSSSSEGSTVDIGAPVEEQPVVEPEETLEPEACFTEGCVQRFKCCQINVEEGR
GKQWWNLRRTCFRIVEHNWFETFIVFMILLSSGALAFEDIYIDQRKTIKTMLEYADKVFT
YIFILEMLLKWVAYGYQTYFTNAWCWLDFLIVDVSLVSLTANALGYSELGAIKSLRTLRA
LRPLRALSRFEGMRVVVNALLGAIPSIMNVLLVCLIFWLIFSIMGVNLFAGKFYHCINTT
TGDRFDIEDVNNHTDCLKLIERNETARWKNVKVNFDNVGFGYLSLLQVATFKGWMDIMYA
AVDSRNVELQPKYEESLYMYLYFVIFIIFGSFFTLNLFIGVIIDNFNQQKKKFGGQDIFM
TEEQKKYYNAMKKLGSKKPQKPIPRPGNKFQGMVFDFVTRQVFDISIMILICLNMVTMMV
ETDDQSEYVTTILSRINLVFIVLFTGECVLKLISLRHYYFTIGWNIFDFVVVILSIVGMF
LAELIEKYFVSPTLFRVIRLARIGRILRLIKGAKGIRTLLFALMMSLPALFNIGLLLFLV
MFIYAIFGMSNFAYVKREVGIDDMFNFETFGNSMICLFQITTSAGWDGLLAPILNSKPPD
CDPNKVNPGSSVKGDCGNPSVGIFFFVSYIIISFLVVVNMYIAVILENFSVATEESAEPL
SEDDFEMFYEVWEKFDPDATQFMEFEKLSQFAAALEPPLNLPQPNKLQLIAMDLPMVSGD
RIHCLDILFAFTKRVLGESGEMDALRIQMEERFMASNPSKVSYQPITTTLKRKQEEVSAV
IIQRAYRRHLLKRTVKQASFTYNKNKIKGGANLLIKEDMIIDRINENSITEKTDLTMSTA
ACPPSYDRVTKPIVEKHEQEGKDEKAKGK

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Family
the sodium channel (TC 1.A.1.10) family
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. Plays a key role in brain, probably by regulating the moment when neurotransmitters are released in neurons. Involved in sensory perception of mechanical pain: activation in somatosensory neurons induces pain without neurogenic inflammation and produces hypersensitivity to mechanical, but not thermal stimuli.

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Taxonomy ID
9606
TCDB ID
1.A.1.10.7
        Click to Show/Hide the Complete Species Lineage
Kingdom: Metazoa
Phylum: Chordata
Class: Mammalia
Order: Primates
Family: Hominidae
Genus: Homo
Species: Homo sapiens
Toxin Information Related to This Target
                           Toxin Name Activity Data Type Activity Data Reference
 Toxin Info    Delta-theraphotoxin-Hm1b Effective concentration 50
11.6 nM
 [1], [2]
 Toxin Info    Nemertide alpha-2 Effective concentration 50
87.2 nM
 [3], [4]
 Toxin Info    Nemertide alpha-1 Effective concentration 50
124.1 nM
 [3], [4], [5]
 Toxin Info    Nemertide alpha-1 Effective concentration 50
124.1 nM
 [3], [4], [5]
 Toxin Info    Mu-theraphotoxin-Pn3a IC50
37 nM
 [6- 11]
 Toxin Info    Beta-theraphotoxin-Cd1a IC50
2.18 μM
 [12]
 Toxin Info    Mu-scoloptoxin(03)-Ssm2a IC50
4.1 μM
 [13], [14], [15]
References
Ref 1 Selective spider toxins reveal a role for the Nav1.1 channel in mechanical pain. Nature. 2016 Jun 23;534(7608):494-9. doi: 10.1038/nature17976. Epub 2016 Jun 6.
Ref 2 A selective Na(V)1.1 activator with potential for treatment of Dravet syndrome epilepsy. Biochem Pharmacol. 2020 Nov;181:113991. doi: 10.1016/j.bcp.2020.113991. Epub 2020 Apr 23.
Ref 3 Peptide ion channel toxins from the bootlace worm, the longest animal on Earth. Sci Rep. 2018 Mar 22;8(1):4596. doi: 10.1038/s41598-018-22305-w.
Ref 4 Functional Characterization of the Nemertide Family of Peptide Toxins. J Nat Prod. 2021 Aug 27;84(8):2121-2128. doi: 10.1021/acs.jnatprod.1c00104. Epub 2021 Aug 16.
Ref 5 Compound Heterozygous SCN5A Mutations in Severe Sodium Channelopathy With Brugada Syndrome: A Case Report. Front Cardiovasc Med. 2020 Jul 24;7:117. doi: 10.3389/fcvm.2020.00117. eCollection 2020.
Ref 6 Pharmacological characterisation of the highly Na(V)1.7 selective spider venom peptide Pn3a. Sci Rep. 2017 Jan 20;7:40883. doi: 10.1038/srep40883.
Ref 7 Corrigendum: Pharmacological characterisation of the highly Na(V)1.7 selective spider venom peptide Pn3a. Sci Rep. 2017 May 26;7:46816. doi: 10.1038/srep46816.
Ref 8 Antiallodynic effects of the selective NaV1.7 inhibitor Pn3a in a mouse model of acute postsurgical pain: evidence for analgesic synergy with opioids and baclofen. Pain. 2019 Aug;160(8):1766-1780. doi: 10.1097/j.pain.0000000000001567.
Ref 9 Chemical Synthesis, Proper Folding, Na(v) Channel Selectivity Profile and Analgesic Properties of the Spider Peptide Phlotoxin 1. Toxins (Basel). 2019 Jun 21;11(6):367. doi: 10.3390/toxins11060367.
Ref 10 Spider Venom Peptide Pn3a Inhibition of Primary Afferent High Voltage-Activated Calcium Channels. Front Pharmacol. 2021 Jan 28;11:633679. doi: 10.3389/fphar.2020.633679. eCollection 2020.
Ref 11 -Theraphotoxin Pn3a inhibition of Ca(V)3.3 channels reveals a novel isoform-selective drug binding site. Elife. 2022 Jul 20;11:e74040. doi: 10.7554/eLife.74040.
Ref 12 Discovery and mode of action of a novel analgesic -toxin from the African spider Ceratogyrus darlingi. PLoS One. 2017 Sep 7;12(9):e0182848. doi: 10.1371/journal.pone.0182848. eCollection 2017.
Ref 13 Discovery of a selective NaV1.7 inhibitor from centipede venom with analgesic efficacy exceeding morphine in rodent pain models. Proc Natl Acad Sci U S A. 2013 Oct 22;110(43):17534-9. doi: 10.1073/pnas.1306285110. Epub 2013 Sep 30.
Ref 14 Engineering potent and selective analogues of GpTx-1, a tarantula venom peptide antagonist of the Na(V)1.7 sodium channel. J Med Chem. 2015 Mar 12;58(5):2299-314. doi: 10.1021/jm501765v. Epub 2015 Feb 19.
Ref 15 Weaponization of a Hormone: Convergent Recruitment of Hyperglycemic Hormone into the Venom of Arthropod Predators. Structure. 2015 Jul 7;23(7):1283-92. doi: 10.1016/j.str.2015.05.003. Epub 2015 Jun 11.
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