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Nav1.4

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Target not currently curated in GtoImmuPdb

Target id: 581

Nomenclature: Nav1.4

Family: Voltage-gated sodium channels (NaV)

Gene and Protein Information Click here for help
Species TM P Loops AA Chromosomal Location Gene Symbol Gene Name Reference
Human 24 1 1836 17q23.3 SCN4A sodium voltage-gated channel alpha subunit 4 2,11,67
Mouse 24 1 1841 11 68.91 cM Scn4a sodium channel, voltage-gated, type IV, alpha 1,72
Rat 24 1 1840 10q32.1 Scn4a sodium voltage-gated channel alpha subunit 4 1,60
Previous and Unofficial Names Click here for help
μ1 | SkM1 | HYKPP | HYPP | mu-1 | NCHVS | microI | sodium channel protein skeletal muscle subunit alpha | sodium channel protein type 4 subunit alpha | mH2 | sodium channel, voltage-gated, type IV, alpha subunit | sodium channel, voltage gated, type IV alpha subunit | sodium channel
Database Links Click here for help
Alphafold
ChEMBL Target
DrugBank Target
Ensembl Gene
Entrez Gene
Human Protein Atlas
KEGG Gene
OMIM
Orphanet
Pharos
RefSeq Nucleotide
RefSeq Protein
UniProtKB
Wikipedia
Selected 3D Structures Click here for help
Image of receptor 3D structure from RCSB PDB
Description:  Structure of the human voltage-gated sodium channel Nav1.4 in complex with β1
PDB Id:  6AGF
Resolution:  3.2Å
Species:  Human
References:  44
Associated Proteins Click here for help
Heteromeric Pore-forming Subunits
Name References
Not determined
Auxiliary Subunits
Name References
β1 14,24
Other Associated Proteins
Name References
Not determined
Functional Characteristics Click here for help
Activation V0.5 = -30 mV. Fast inactivation (0.6 ms)
Ion Selectivity and Conductance Click here for help
Species:  Rat
Rank order:  Na+ > K+ > Rb+ > Cs+
References:  59
Voltage Dependence Click here for help
  V0.5 (mV)  τ (msec)  Reference  Cell type  Species 
Activation  -25.9 - 6 CHO cells. Human
Inactivation  -56.0 1.1 6
  V0.5 (mV)  τ (msec)  Reference  Cell type  Species 
Activation  -36.0 – -29.6 (median: -33.0) - 25,39 HEK-293, tsA-201 Human
Inactivation  -80.0 – -72.8 (median: -76.0) 0.6 25,39
  V0.5 (mV)  τ (msec)  Reference  Cell type  Species 
Activation  -32.7 – -22.8 (median: -30.0) - 16,27,66,68 HEK 293 cells. Rat
Inactivation  -88.5 – -66.1 (median: -75.0) - 16,27,66,68

Download all structure-activity data for this target as a CSV file go icon to follow link

Activators
Key to terms and symbols View all chemical structures Click column headers to sort
Ligand Sp. Action Value Parameter Concentration range (M) Holding voltage (mV) Reference
grayanotoxin III Small molecule or natural product Rn Agonist - - 3x10-4 -120.0 26
Conc range: 3x10-4 M [26]
Holding voltage: -120.0 mV
veratridine Small molecule or natural product Click here for species-specific activity table Rn Partial agonist - - 2x10-4 -100.0 69
Conc range: 2x10-4 M [69]
Holding voltage: -100.0 mV
batrachotoxin Small molecule or natural product Click here for species-specific activity table Rn Full agonist - - 5x10-6 -100.0 69
Conc range: 5x10-6 M [69]
Holding voltage: -100.0 mV
β-scorpion toxin TiTXγ Peptide Rn Agonist - - 5x10-8 -100.0 34
Conc range: 5x10-8 M [34]
Holding voltage: -100.0 mV
Inhibitors
Key to terms and symbols Click column headers to sort
Ligand Sp. Action Value Parameter Concentration range (M) Holding voltage (mV) Reference
AM-6120 Peptide Click here for species-specific activity table Immunopharmacology Ligand Hs Inhibition 7.0 pIC50 - - 70
pIC50 7.0 (IC50 1.04x10-7 M) [70]
Description: Determined in a PatchXpress electrophysiology experiment using HEK293 cells stably expressing hNaV1.4.
Gating inhibitors Click here for help
Key to terms and symbols Click column headers to sort
Ligand Sp. Action Value Parameter Concentration range (M) Holding voltage (mV) Reference
AFT-II Peptide Click here for species-specific activity table Hs Slows inactivation 7.5 pEC50 - -80.0 43
pEC50 7.5 [43]
Holding voltage: -80.0 mV
ATX-II Peptide Click here for species-specific activity table Hs Slows inactivation 7.0 – 7.3 pEC50 - -100.0 – -80.0 12,43
pEC50 7.0 – 7.3 [12,43]
Holding voltage: -100.0 – -80.0 mV
Bc-III Peptide Click here for species-specific activity table Hs Slows inactivation 6.1 pEC50 - -80.0 43
pEC50 6.1 [43]
Holding voltage: -80.0 mV
Channel Blockers
Key to terms and symbols View all chemical structures Click column headers to sort
Ligand Sp. Action Value Parameter Concentration range (M) Holding voltage (mV) Reference
GNE-616 Small molecule or natural product Click here for species-specific activity table Hs Inhibition <6.0 pKd - - 38
pKd <6.0 (Kd >1x10-6 M) [38]
Description: Kd determined in a Dynaflow Manual Patch Clamp experiment.
saxitoxin Small molecule or natural product Click here for species-specific activity table Ligand has a PDB structure Rn Pore blocker 8.4 pIC50 - -100.0 46
pIC50 8.4 (IC50 4.1x10-9 M) [46]
Holding voltage: -100.0 mV
tetrodotoxin Small molecule or natural product Click here for species-specific activity table Rn Pore blocker 8.3 pIC50 - -120.0 61
pIC50 8.3 [61]
Holding voltage: -120.0 mV
tetrodotoxin Small molecule or natural product Click here for species-specific activity table Hs Pore blocker 7.6 pIC50 - -120.0 11
pIC50 7.6 (IC50 2.5x10-8 M) [11]
Holding voltage: -120.0 mV
μ-conotoxin GIIIA Peptide Rn Antagonist 7.3 – 7.7 pIC50 - -120.0 – -100.0 13,55
pIC50 7.3 – 7.7 [13,55]
Holding voltage: -120.0 – -100.0 mV
μ-conotoxin PIIIA Peptide Rn Antagonist 7.4 pIC50 - -120.0 55
pIC50 7.4 [55]
Holding voltage: -120.0 mV
μ-conotoxin GIIIA Peptide Hs Pore blocker 5.9 pIC50 - -100.0 11
pIC50 5.9 (IC50 1.2x10-6 M) [11]
Holding voltage: -100.0 mV
mexiletine Small molecule or natural product Approved drug Primary target of this compound Hs Antagonist 3.4 pIC50 - -140.0 65
pIC50 3.4 [65]
Holding voltage: -140.0 mV
lidocaine Small molecule or natural product Approved drug Click here for species-specific activity table Ligand has a PDB structure Rn Pore blocker 2.7 pIC50 - -130.0 33
pIC50 2.7 [33]
Holding voltage: -130.0 mV
View species-specific channel blocker tables
Tissue Distribution Click here for help
Skeletal muscle
Species:  Rat
Technique:  RT-PCR
References:  58
Skeletal muscle
Species:  Rat
Technique:  Northern Blot
References:  60
Physiological Functions Click here for help
Action potential initiation and transmission
Species:  Human
Tissue:  skeletal muscle
References:  20,61
Physiological Functions Comments
The stated role of Nv1.4 has been reported for mamalian skeletal muscles [60-61].
Phenotypes, Alleles and Disease Models Click here for help Mouse data from MGI

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Allele Composition & genetic background Accession Phenotype Id Phenotype Reference
Scn4a+|Scn4atm1Ljh Scn4atm1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0002106 abnormal muscle physiology PMID: 18317596 
Scn4a+|Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0002106 abnormal muscle physiology PMID: 18317596 
Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4atm1.1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0003084 abnormal skeletal muscle fiber morphology PMID: 18317596 
Scn4atm1Ljh Scn4atm1Ljh/Scn4atm1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0003084 abnormal skeletal muscle fiber morphology PMID: 18317596 
Scn4a+|Scn4atm1Ljh Scn4atm1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0003084 abnormal skeletal muscle fiber morphology PMID: 18317596 
Scn4a+|Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0003084 abnormal skeletal muscle fiber morphology PMID: 18317596 
Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4atm1.1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0001262 decreased body weight PMID: 18317596 
Scn4atm1Ljh Scn4atm1Ljh/Scn4atm1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0001262 decreased body weight PMID: 18317596 
Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4atm1.1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0008770 decreased survivor rate PMID: 18317596 
Scn4atm1Ljh Scn4atm1Ljh/Scn4atm1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0008770 decreased survivor rate PMID: 18317596 
Scn4a+|Scn4atm1Ljh Scn4atm1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0003157 impaired muscle relaxation PMID: 18317596 
Scn4a+|Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0003157 impaired muscle relaxation PMID: 18317596 
Scn4a+|Scn4atm1Ljh Scn4atm1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0002841 impaired skeletal muscle contractility PMID: 18317596 
Scn4a+|Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0002841 impaired skeletal muscle contractility PMID: 18317596 
Scn4a+|Scn4atm1Ljh Scn4atm1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0004037 increased muscle relaxation PMID: 18317596 
Scn4a+|Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0004037 increased muscle relaxation PMID: 18317596 
Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4atm1.1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0009403 increased variability of skeletal muscle fiber size PMID: 18317596 
Scn4atm1Ljh Scn4atm1Ljh/Scn4atm1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0009403 increased variability of skeletal muscle fiber size PMID: 18317596 
Scn4a+|Scn4atm1Ljh Scn4atm1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0009403 increased variability of skeletal muscle fiber size PMID: 18317596 
Scn4a+|Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0009403 increased variability of skeletal muscle fiber size PMID: 18317596 
Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4atm1.1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0001513 limb grasping PMID: 18317596 
Scn4atm1Ljh Scn4atm1Ljh/Scn4atm1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0001513 limb grasping PMID: 18317596 
Scn4a+|Scn4atm1Ljh Scn4atm1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0003646 muscle fatigue PMID: 18317596 
Scn4a+|Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0003646 muscle fatigue PMID: 18317596 
Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4atm1.1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0000747 muscle weakness PMID: 18317596 
Scn4atm1Ljh Scn4atm1Ljh/Scn4atm1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0000747 muscle weakness PMID: 18317596 
Scn4a+|Scn4atm1Ljh Scn4atm1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0000747 muscle weakness PMID: 18317596 
Scn4a+|Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0000747 muscle weakness PMID: 18317596 
Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4atm1.1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0000751 myopathy PMID: 18317596 
Scn4atm1Ljh Scn4atm1Ljh/Scn4atm1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0000751 myopathy PMID: 18317596 
Scn4a+|Scn4atm1Ljh Scn4atm1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0000751 myopathy PMID: 18317596 
Scn4a+|Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4a+
B6.129S4-Scn4a
MGI:98250  MP:0000751 myopathy PMID: 18317596 
Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4atm1.1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0002081 perinatal lethality PMID: 18317596 
Scn4atm1Ljh Scn4atm1Ljh/Scn4atm1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0002081 perinatal lethality PMID: 18317596 
Scn4atm1.1Ljh Scn4atm1.1Ljh/Scn4atm1.1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0009417 skeletal muscle atrophy PMID: 18317596 
Scn4atm1Ljh Scn4atm1Ljh/Scn4atm1Ljh
B6.129S4-Scn4a
MGI:98250  MP:0009417 skeletal muscle atrophy PMID: 18317596 
Clinically-Relevant Mutations and Pathophysiology Click here for help
Disease:  Hyperkalemic Periodic Paralysis; HYPP
Disease Ontology: DOID:14451
OMIM: 170500
Orphanet: ORPHA682
References:  9,19,29
Click column headers to sort
Type Species Amino acid change Nucleotide change Description Reference
Missense Human L689V 4
Missense Human L689I 9
Missense Human I693T 9
Missense Human T704M 40,50
Missense Human A1156T 9,29
Missense Human P1158S 9
Missense Human M1360V 64
Missense Human I1490L 9
Missense Human M1493I 9
Missense Human I1495F 9
Missense Human M1592V 40,53
Disease:  Hypokalemic periodic paralysis, type 2; HOKPP2
Synonyms: Hypokalemic periodic paralysis [Orphanet: ORPHA681] [Disease Ontology: DOID:14452]
Disease Ontology: DOID:14452
OMIM: 613345
Orphanet: ORPHA681
References:  9,19,29
Click column headers to sort
Type Species Amino acid change Nucleotide change Description Reference
Missense Human R222W 45
Missense Human R669H 8-9,56
Missense Human R672G 9,56
Missense Human R672S 9,56
Missense Human R672H 9,25,56
Missense Human R1132Q 10
Missense Human R1135H 35
Disease:  Myasthenic syndrome, congenital, 16; CMS16
Synonyms: Congenital myasthenic syndrome [Disease Ontology: DOID:3635] [Orphanet: ORPHA590]
Myasthenic syndrome, congenital, acetazolamide-responsive [OMIM: 614198]
Postsynaptic congenital myasthenic syndromes [Orphanet: ORPHA98913]
Disease Ontology: DOID:3635
OMIM: 614198
Orphanet: ORPHA98913, ORPHA590
Click column headers to sort
Type Species Amino acid change Nucleotide change Description Reference
Missense Human V1442E 62
Disease:  Myotonia, Potassium-Aggravated
Synonyms: Acetazolamide-responsive myotonia [Orphanet: ORPHA99736]
Myotonia fluctuans [Orphanet: ORPHA99734]
Myotonia permanens [Orphanet: ORPHA99735]
OMIM: 608390
Orphanet: ORPHA99735, ORPHA99736, ORPHA99734
References:  9,19,29
Click column headers to sort
Type Species Amino acid change Nucleotide change Description Reference
Missense Human N129K
Missense Human I141V 47
Missense Human R225W 28
Missense Human L250P 57
Missense Human V445M 54
Missense Human S804F 36,52
Missense Human I1160V 51
Missense Human G1306E 22,41
Missense Human G1306V 31,37
Missense Human G1306A 31
Missense Human V1589M 23
Disease:  Normokalemic periodic paralysis
OMIM: 170600
Orphanet: ORPHA680
References:  63
Click column headers to sort
Type Species Amino acid change Nucleotide change Description Reference
Missense Human R675G/Q/W Arginine is substituted for either glycine or glutamine or tryptophan 63
Disease:  Paramyotonia Congenita of Von Eulenburg
OMIM: 168300
Orphanet: ORPHA684
References:  9,19,29
Click column headers to sort
Type Species Amino acid change Nucleotide change Description Reference
Missense Human L266V 71
Missense Human V1293I 21
Missense Human N1297K 18
Missense Human T1313M 15
Missense Human T1313A 7
Missense Human T1313M 49
Missense Human M1370V 42
Missense Human I1393T 3
Missense Human L1443R 48
Missense Human R1448C 49
Missense Human R1448H 49
Missense Human R1448S 9
Missense Human R1448P 32
Missense Human R1448S 5
Missense Human G1456E 9
Missense Human V1458F 30
Missense Human F1473S 17
Clinically-Relevant Mutations and Pathophysiology Comments
The majority of Nav1.4 mutations in these diseases alter the inactivation properties of the channel leading to susceptability to periods of hyperactivity (causing myotonia) or inactivation (causing paralysis).

References

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1. Ambrose C, Cheng S, Fontaine B, Nadeau JH, MacDonald M, Gusella JF. (1992) The alpha-subunit of the skeletal muscle sodium channel is encoded proximal to Tk-1 on mouse chromosome 11. Mamm Genome, 3 (3): 151-5. [PMID:1352160]

2. Arnestad M, Crotti L, Rognum TO, Insolia R, Pedrazzini M, Ferrandi C, Vege A, Wang DW, Rhodes TE, George AL, Schwartz PJ. (2007) Prevalence of long-QT syndrome gene variants in sudden infant death syndrome. Circulation, 115 (3): 361-7. [PMID:17210839]

3. Arzel-Hézode M, Sternberg D, Tabti N, Vicart S, Goizet C, Eymard B, Fontaine B, Fournier E. (2010) Homozygosity for dominant mutations increases severity of muscle channelopathies. Muscle Nerve, 41 (4): 470-7. [PMID:19882638]

4. Bendahhou S, Cummins TR, Kula RW, Fu YH, Ptácek LJ. (2002) Impairment of slow inactivation as a common mechanism for periodic paralysis in DIIS4-S5. Neurology, 58 (8): 1266-72. [PMID:11971097]

5. Bendahhou S, Cummins TR, Kwiecinski H, Waxman SG, Ptácek LJ. (1999) Characterization of a new sodium channel mutation at arginine 1448 associated with moderate Paramyotonia congenita in humans. J Physiol (Lond.), 518 ( Pt 2): 337-44. [PMID:10381583]

6. Bennett ES. (2004) Channel activation voltage alone is directly altered in an isoform-specific manner by Na(v1.4) and Na(v1.5) cytoplasmic linkers. J Membr Biol, 197 (3): 155-68. [PMID:15042347]

7. Bouhours M, Sternberg D, Davoine CS, Ferrer X, Willer JC, Fontaine B, Tabti N. (2004) Functional characterization and cold sensitivity of T1313A, a new mutation of the skeletal muscle sodium channel causing paramyotonia congenita in humans. J Physiol (Lond.), 554 (Pt 3): 635-47. [PMID:14617673]

8. Bulman DE, Scoggan KA, van Oene MD, Nicolle MW, Hahn AF, Tollar LL, Ebers GC. (1999) A novel sodium channel mutation in a family with hypokalemic periodic paralysis. Neurology, 53 (9): 1932-6. [PMID:10599760]

9. Cannon SC. (2002) An expanding view for the molecular basis of familial periodic paralysis. Neuromuscul Disord, 12 (6): 533-43. [PMID:12117476]

10. Carle T, Lhuillier L, Luce S, Sternberg D, Devuyst O, Fontaine B, Tabti N. (2006) Gating defects of a novel Na+ channel mutant causing hypokalemic periodic paralysis. Biochem Biophys Res Commun, 348 (2): 653-61. [PMID:16890191]

11. Chahine M, Bennett PB, George Jr AL, Horn R. (1994) Functional expression and properties of the human skeletal muscle sodium channel. Pflugers Arch, 427 (1-2): 136-42. [PMID:8058462]

12. Chahine M, Plante E, Kallen RG. (1996) Sea anemone toxin (ATX II) modulation of heart and skeletal muscle sodium channel alpha-subunits expressed in tsA201 cells. J Membr Biol, 152 (1): 39-48. [PMID:8660409]

13. Chen LQ, Chahine M, Kallen RG, Barchi RL, Horn R. (1992) Chimeric study of sodium channels from rat skeletal and cardiac muscle. FEBS Lett, 309 (3): 253-7. [PMID:1325372]

14. Cohen-Armon M, Sokolovsky M. (1993) Evidence for involvement of the voltage-dependent Na+ channel gating in depolarization-induced activation of G-proteins. J Biol Chem, 268 (13): 9824-38. [PMID:8387506]

15. Dice MS, Abbruzzese JL, Wheeler JT, Groome JR, Fujimoto E, Ruben PC. (2004) Temperature-sensitive defects in paramyotonia congenita mutants R1448C and T1313M. Muscle Nerve, 30 (3): 277-88. [PMID:15318338]

16. Ferrera L, Moran O. (2006) Beta1-subunit modulates the Nav1.4 sodium channel by changing the surface charge. Exp Brain Res, 172 (2): 139-50. [PMID:16432696]

17. Fleischhauer R, Mitrovic N, Deymeer F, Lehmann-Horn F, Lerche H. (1998) Effects of temperature and mexiletine on the F1473S Na+ channel mutation causing paramyotonia congenita. Pflugers Arch, 436 (5): 757-65. [PMID:9716710]

18. Gay S, Dupuis D, Faivre L, Masurel-Paulet A, Labenne M, Colombani M, Soichot P, Huet F, Hainque B, Sternberg D et al.. (2008) Severe neonatal non-dystrophic myotonia secondary to a novel mutation of the voltage-gated sodium channel (SCN4A) gene. Am J Med Genet A, 146 (3): 380-3. [PMID:18203179]

19. George AL. (2005) Inherited disorders of voltage-gated sodium channels. J Clin Invest, 115 (8): 1990-9. [PMID:16075039]

20. George Jr AL, Komisarof J, Kallen RG, Barchi RL. (1992) Primary structure of the adult human skeletal muscle voltage-dependent sodium channel. Ann Neurol, 31 (2): 131-7. [PMID:1315496]

21. Green DS, George AL, Cannon SC. (1998) Human sodium channel gating defects caused by missense mutations in S6 segments associated with myotonia: S804F and V1293I. J Physiol (Lond.), 510 ( Pt 3): 685-94. [PMID:9660885]

22. Groome JR, Fujimoto E, Ruben PC. (2005) K-aggravated myotonia mutations at residue G1306 differentially alter deactivation gating of human skeletal muscle sodium channels. Cell Mol Neurobiol, 25 (7): 1075-92. [PMID:16392038]

23. Heine R, Pika U, Lehmann-Horn F. (1993) A novel SCN4A mutation causing myotonia aggravated by cold and potassium. Hum Mol Genet, 2 (9): 1349-53. [PMID:8242056]

24. Isom LL, De Jongh KS, Patton DE, Reber BF, Offord J, Charbonneau H, Walsh K, Goldin AL, Catterall WA. (1992) Primary structure and functional expression of the beta 1 subunit of the rat brain sodium channel. Science, 256 (5058): 839-42. [PMID:1375395]

25. Jurkat-Rott K, Mitrovic N, Hang C, Kouzmekine A, Iaizzo P, Herzog J, Lerche H, Nicole S, Vale-Santos J, Chauveau D et al.. (2000) Voltage-sensor sodium channel mutations cause hypokalemic periodic paralysis type 2 by enhanced inactivation and reduced current. Proc Natl Acad Sci USA, 97 (17): 9549-54. [PMID:10944223]

26. Kimura T, Yamaoka K, Kinoshita E, Maejima H, Yuki T, Yakehiro M, Seyama I. (2001) Novel site on sodium channel alpha-subunit responsible for the differential sensitivity of grayanotoxin in skeletal and cardiac muscle. Mol Pharmacol, 60 (4): 865-72. [PMID:11562450]

27. Kondratiev A, Tomaselli GF. (2003) Altered gating and local anesthetic block mediated by residues in the I-S6 and II-S6 transmembrane segments of voltage-dependent Na+ channels. Mol Pharmacol, 64 (3): 741-52. [PMID:12920212]

28. Lee SC, Kim HS, Park YE, Choi YC, Park KH, Kim DS. (2009) Clinical Diversity of SCN4A-Mutation-Associated Skeletal Muscle Sodium Channelopathy. J Clin Neurol, 5 (4): 186-91. [PMID:20076800]

29. Lehmann-Horn F, Jurkat-Rott K. (1999) Voltage-gated ion channels and hereditary disease. Physiol Rev, 79 (4): 1317-72. [PMID:10508236]

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