• Product name

  • Description

    Rabbit polyclonal to SCN4A
  • Host species

  • Tested applications

    Suitable for: WBmore details
  • Species reactivity

    Reacts with: Human
    Predicted to work with: Mouse, Rat
  • Immunogen

    Synthetic peptide corresponding to an internal region of Human SCN4A.

  • Positive control

    • COLO205 cell lysate.


  • Form

  • Storage instructions

    Shipped at 4°C. Store at -20ºC.
  • Storage buffer

    pH: 7.40
    Preservative: 0.02% Sodium azide
    Constituents: 49% PBS, 50% Glycerol, 0.88% Sodium chloride
    Note: PBS is without Mg2+ and Ca2+.
  • Concentration information loading...
  • Purity

    Immunogen affinity purified
  • Purification notes

    ab138079 was affinity-purified from rabbit antiserum by immunogenic peptide affinity-chromatography.
  • Clonality

  • Isotype

  • Research areas


Our Abpromise guarantee covers the use of ab138079 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/500 - 1/1000. Predicted molecular weight: 208 kDa.


  • Function

    This protein 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. This sodium channel may be present in both denervated and innervated skeletal muscle.
  • Involvement in disease

    Defects in SCN4A are the cause of paramyotonia congenita of von Eulenburg (PMC) [MIM:168300]. PMC is an autosomal dominant channelopathy characterized by myotonia, increased by exposure to cold, intermittent flaccid paresis, not necessarily dependent on cold or myotonia, lability of serum potassium, nonprogressive nature and lack of atrophy or hypertrophy of muscles. In some patients, myotonia is not increased by cold exposure (paramyotonia without cold paralysis). Patients may have a combination phenotype of PMC and HYPP.
    Defects in SCN4A are a cause of periodic paralysis hypokalemic type 2 (HOKPP2) [MIM:613345]. It is an autosomal dominant disorder manifested by episodic flaccid generalized muscle weakness associated with falls of serum potassium levels.
    Defects in SCN4A are the cause of periodic paralysis hyperkalemic (HYPP) [MIM:170500]. HYPP is an autosomal dominant channelopathy characterized by episodic flaccid generalized muscle weakness associated with high levels of serum potassium. Concurrence of myotonia is found in HYPP patients.
    Defects in SCN4A are the cause of periodic paralysis normokalemic (NKPP) [MIM:170500]. NKPP is a disorder closely related to hyperkalemic periodic paralysis, but marked by a lack of alterations in potassium levels during attacks of muscle weakness.
    Defects in SCN4A are the cause of myotonia SCN4A-related (MYOSCN4A) [MIM:608390]. Myotonia is characterized by sustained muscle tensing that prevents muscles from relaxing normally. Myotonia causes muscle stiffness that can interfere with movement. In some people the stiffness is very mild, while in other cases it may be severe enough to interfere with walking, running, and other activities of daily life. MYOSCN4A is a phenotypically highly variable myotonia aggravated by potassium loading, and often by cold. MYOSCN4A includes myotonia permanens and myotonia fluctuans. In myotonia permanens, the myotonia is generalized and there is a hypertrophy of the muscle, particularly in the neck and the shoulder. Attacks of severe muscle stiffness of the thoracic muscles may be life threatening due to impaired ventilation. In myotonia fluctuans, the muscle stiffness may fluctuate from day to day, provoked by exercise.
    Defects in SCN4A are the cause of a congenital myasthenic syndrome acetazolamide-responsive (CMSAR) [MIM:614198]. A congenital myasthenic syndrome associated with fatigable generalized weakness and recurrent attacks of respiratory and bulbar paralysis since birth. The fatigable weakness involves lid-elevator, external ocular, facial, limb and truncal muscles and an decremental response of the compound muscle action potential on repetitive stimulation.
  • Sequence similarities

    Belongs to the sodium channel (TC 1.A.1.10) family. Nav1.4/SCN4A subfamily.
    Contains 1 IQ domain.
  • Domain

    The sequence contains 4 internal repeats, each with 5 hydrophobic segments (S1,S2,S3,S5,S6) and one positively charged segment (S4). Segments S4 are probably the voltage-sensors and are characterized by a series of positively charged amino acids at every third position.
  • Cellular localization

  • Information by UniProt
  • Database links

  • Alternative names

    • HYKPP antibody
    • HYPP antibody
    • Na(V)1.4 antibody
    • NAC1A antibody
    • Nav1.4 antibody
    • Scn4a antibody
    • SCN4A_HUMAN antibody
    • Skeletal muscle voltage dependent sodium channel type IV alpha subunit antibody
    • SkM1 antibody
    • Sodium channel protein skeletal muscle subunit alpha antibody
    • Sodium channel protein type 4 subunit alpha antibody
    • Sodium channel protein type IV subunit alpha antibody
    • Sodium channel voltage gated type IV alpha subunit antibody
    • Voltage gated sodium channel subunit alpha Nav1.4 antibody
    • Voltage gated sodium channel type 4 alpha antibody
    • Voltage-gated sodium channel subunit alpha Nav1.4 antibody
    see all


  • Anti-SCN4A antibody (ab138079) at 1/500 dilution + COLO205 cell lysate at 30 µg

    Predicted band size: 208 kDa


ab138079 has not yet been referenced specifically in any publications.

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