- Catalog number
- PB9650
- Size / count
- 100 µg/Vial
- Dry ice
- No
- Hazardous
- No
- Discontinued
- No
- Background
- Potassium voltage-gated channel, shaker-related subfamily, member 3, also known as KCNA3 or Kv1.3, is a protein that in humans is encoded by the KCNA3 gene. This gene encodes a member of the potassium channel, voltage-gated, shaker-related subfamily. This member contains six membrane-spanning domains with a shaker-type repeat in the fourth segment. It belongs to the delayed rectifier class, members of which allow nerve cells to efficiently repolarize following an action potential. It plays an essential role in T-cell proliferation and activation. This gene appears to be intronless and it is clustered together with KCNA2 and KCNA10 genes on chromosome 1. And Kv1.3 has been reported to be expressed in the inner mitochondrial membrane in lymphocytes. The apoptotic protein Bax has been suggested to insert into theouter mitochondrial membrane and occlude the pore of Kv1.3 via a lysine residue. Thus, Kv1.3 modulation may be one of many mechanisms that contribute to apoptosis.
- Synonyms
- Potassium voltage-gated channel subfamily A member 3; HGK5; HLK3; HPCN3; Voltage-gated K (+) channel HuKIII; Voltage-gated potassium channel subunit Kv1.3; KCNA3; HGK5
- Gene Name
- KCNA3
- Gene ID
- 3738
- UniProt
- P22001
- Host
- Rabbit
- Reactivity
- Human, Mouse, Rat
- Cross Reactivity
- No cross-reactivity with other proteins
- Immunogen
- A synthetic peptide corresponding to a sequence at the C-terminus of human KCNA3, identical to the related mouse and rat sequences.
- Clonality
- Polyclonal
- Tissue Specificity
- Detected in brain cortex (PubMed:16473933) . Detected in peroneal nerve in the juxtaparanodal regions of the node of Ranvier; expression is decreased in patients with diabetes mellitus that suffer from axonal neuropathy (PubMed:22649228) . Detected in paranodal and juxtanodal zones in myelinated spinal cord (at protein level) (PubMed:11086297) . .
- Applications
- WB
- Field of Research
- Cancer, Channels, Metabolism, Plasma Membrane, Signal Transduction
- Purification
- Immunogen affinity purified.
- Concentration
- Adding 0.2 ml of distilled water will yield a concentration of 500 μg/ml.
- Form
- Lyophilized
- Reconstitution
- Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
- Function
- Mediates the voltage-dependent potassium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a potassium-selective channel through which potassium ions may pass in accordance with their electrochemical gradient.
- References & Citations
- 1. Szabó I, Bock J, Grassmé H, Soddemann M, Wilker B, Lang F, Zoratti M, Gulbins E (September 2008) . Mitochondrial potassium channel Kv1.3 mediates Bax-induced apoptosis in lymphocytes. Proc. Natl. Acad. Sci. U.S.A. 105 (39) : 14861–6. 2. Storey NM, Gómez-Angelats M, Bortner CD, Armstrong DL, Cidlowski JA (August 2003) . Stimulation of Kv1.3 potassium channels by death receptors during apoptosis in Jurkat T lymphocytes. J. Biol. Chem. 278 (35) : 33319–26.
- Storage Conditions
- Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.
- Calculated Molecular Weight
- 63842 MW
- Observed Molecular Weight
- 55 kDa
- Specificity
- No cross reactivity with other proteins.
- Gene Name Synonym
- Potassium voltage-gated channel subfamily A member 3
- Subcellular Location
- Cell membrane ; Multi-pass membrane protein.
- Sequence Similarities
- Contains 1 HMG box DNA-binding domain.
- Protein Name
- Potassium voltage-gated channel subfamily A member 3
- Isotype
- Rabbit IgG
- Contents
- Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg NaN3.