• Product nameAnti-KCNMB4 antibody
    See all KCNMB4 primary antibodies
  • Description
    Mouse monoclonal to KCNMB4
  • Tested applicationsSuitable for: ELISAmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Recombinant full length protein, corresponding to amino acids 1-211 of Human KCNMB4


  • FormLiquid
  • Storage instructionsShipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
  • Storage bufferPreservative: None
    PBS, pH 7.2
  • Concentration information loading...
  • PurityProtein G purified
  • ClonalityMonoclonal
  • IsotypeIgG1
  • Light chain typekappa
  • Research areas


Our Abpromise guarantee covers the use of ab57278 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
ELISA Use at an assay dependent dilution.


  • FunctionRegulatory subunit of the calcium activated potassium KCNMA1 (maxiK) channel. Modulates the calcium sensitivity and gating kinetics of KCNMA1, thereby contributing to KCNMA1 channel diversity. Decreases the gating kinetics and calcium sensitivity of the KCNMA1 channel, but with fast deactivation kinetics. May decrease KCNMA1 channel openings at low calcium concentrations but increases channel openings at high calcium concentrations. Makes KCNMA1 channel resistant to 100 nM charybdotoxin (CTX) toxin concentrations.
  • Tissue specificityPredominantly expressed in brain. In brain, it is expressed in the cerebellum, cerebral cortex, medulla, spinal cord, occipital pole, frontal lobe, temporal lobe, putamen, amygdala, caudate nucleus, corpus callosum, hippocampus, substantia nigra and thalamus. Weakly or not expressed in other tissues.
  • Sequence similaritiesBelongs to the KCNMB (TC 8.A.14.1) family. KCNMB4 subfamily.
  • DomainResistance to charybdotoxin (CTX) toxin is mediated by the extracellular domain.
  • Post-translational
    Phosphorylated. Phosphorylation modulates its effect on KCNMA1 activation kinetics.
    N-glycosylated. A highly glycosylated form is promoted by KCNMA1. Glycosylation, which is not required for the interaction with KCNMA1 and subcellular location, increases protection against charybdotoxin.
  • Cellular localizationMembrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • BK channel subunit beta 4 antibody
    • BK channel subunit beta-4 antibody
    • BKbeta4 antibody
    • Calcium activated potassium channel beta 4 subunit antibody
    • Calcium activated potassium channel subfamily M subunit beta 4 antibody
    • Calcium activated potassium channel subunit beta 4 antibody
    • Calcium-activated potassium channel antibody
    • Calcium-activated potassium channel subunit beta-4 antibody
    • Charybdotoxin receptor subunit beta 4 antibody
    • Charybdotoxin receptor subunit beta-4 antibody
    • Hbeta4 antibody
    • K(VCA)beta 4 antibody
    • K(VCA)beta-4 antibody
    • KCMB4_HUMAN antibody
    • KCNMB 4 antibody
    • Kcnmb4 antibody
    • Large conductance calcium dependent potassium ion channel beta 4 subunit antibody
    • Maxi K channel subunit beta 4 antibody
    • Maxi K channel subunit beta-4 antibody
    • Potassium large conductance calcium activated channel subfamily M beta member 4 antibody
    • Slo beta 4 antibody
    • Slo-beta-4 antibody
    • subfamily M subunit beta-4 antibody
    see all

Anti-KCNMB4 antibody images

  • Sandwich ELISA. The detection limit for recombinant tagged KCNMB4 is approximately 0.3ng/ml as a capture antibody.

References for Anti-KCNMB4 antibody (ab57278)

ab57278 has not yet been referenced specifically in any publications.

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