Recombinant Mouse Potassium voltage-gated channel subfamily A member 4 (Kcna4)

Code CSB-CF720248MO
MSDS
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Source in vitro E.coli expression system
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Product Details

Target Names
Kcna4
Uniprot No.
Alternative Names
Kcna4; Potassium voltage-gated channel subfamily A member 4; Voltage-gated potassium channel subunit Kv1.4
Species
Mus musculus (Mouse)
Expression Region
1-654
Target Protein Sequence
MEVAMVSAESSGCNSHMPYGYAAQARARERERLAHSRAAAAAAVAAATAAVEGTGGSGGG PHHHHQTRGAYSSHDPQGSRGSRRRRRQRTEKKKLHHRQSSFPHCSDLMPSGSEEKILRE LSEEEEDEEEEEEEEEEGRFYYSEEDHGDGCSYTDLLPQDDGGGGGYSSVRYSDCCERVV INVSGLRFETQMKTLAQFPETLLGDPEKRTQYFDPLRNEYFFDRNRPSFDAILYYYQSGG RLKRPVNVPFDIFTEEVKFYQLGEEALLKFREDEGFVREEEDRALPENEFKKQIWLLFEY PESSSPARGIAIVSVLVILISIVIFCLETLPEFRDDRDLIMALSAGGHSRLLNDTSAPHL ENSGHTIFNDPFFIVETVCIVWFSFEFVVRCFACPSQALFFKNIMNIIDIVSILPYFITL GTDLAQQQGGGNGQQQQAMSFAILRIIRLVRVFRIFKLSRHSKGLQILGHTLRASMRELG LLIFFLFIGVILFSSAVYFAEADEPTTHFQSIPDAFWWAVVTMTTVGYGDMKPITVGGKI VGSLCAIAGVLTIALPVPVIVSNFNYFYHRETENEEQTQLTQNAVSCPYLPSNLLKKFRS STSSSLGDKSEYLEMEEGVKESLCGKEEKCQGKGDESETDKNNCSNAKAVETDV
Protein Length
full length protein
Tag Info
Tag type will be determined during the manufacturing process.
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet
Please contact us to get it.

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Target Background

Function
Voltage-gated potassium channel that mediates transmembrane potassium transport in excitable membranes. Forms tetrameric potassium-selective channels through which potassium ions pass in accordance with their electrochemical gradient. The channel alternates between opened and closed conformations in response to the voltage difference across the membrane. Can form functional homotetrameric channels and heterotetrameric channels that contain variable proportions of KCNA1, KCNA2, KCNA4, KCNA5, and possibly other family members as well; channel properties depend on the type of alpha subunits that are part of the channel. Channel properties are modulated by cytoplasmic beta subunits that regulate the subcellular location of the alpha subunits and promote rapid inactivation. In vivo, membranes probably contain a mixture of heteromeric potassium channel complexes, making it difficult to assign currents observed in intact tissues to any particular potassium channel family member. Homotetrameric KCNA4 forms a potassium channel that opens in response to membrane depolarization, followed by rapid spontaneous channel closure. Likewise, a heterotetrameric channel formed by KCNA1 and KCNA4 shows rapid inactivation.
Gene References into Functions
  1. Data show that suprachiasmatic nucleus (SCN) explants from potassium channel Kv1.4(-/-)period2 protein Per2(Luc) and potassium channel Kv4.2(-/-) period2 protein Per2(Luc) mice have significantly shorter circadian periods in PER2 rhythms. PMID: 26152125
  2. Increased A-type K(+) currents and expression of voltage-gated potassium channel Kcna4 (Kv1.4) in SNS-gp130(-/-) nociceptors. PMID: 24463703
  3. The experiments here demonstrate that Kv4.2, Kv4.3 and Kv1.4 all contribute to the generation of potassium channels in mature cortical pyramidal (CP) neurons; these channels play distinct roles in regulating the intrinsic properties of mature CP neurons. PMID: 22615428
  4. Kv1.4- and Kv4.2-encoded I(A) channels regulate the intrinsic excitability of SCN neurons during the day and night and determine the period and amplitude of circadian rhythms in SCN neuron firing and locomotor behavior. PMID: 22815518
  5. This study demonistrated that Kcna4 gene expression in mouse dorsal raphe nucleus PMID: 22534482
  6. Targeted deletion of Kv1.4 alpha-subunit (along with Kv4.2 and Kv4.3) demonstrates that individual alpha-subunits encode for the I(A) current in cortical pyramidal neurons. PMID: 20371829
  7. PSD-95 increased the amount of Kv1.4, but not Kv4.2, in lipid rafts. PMID: 14559911
  8. Data indicate that Kv1.4 expression is mediated through a complex interplay between many distinct RNA regions. PMID: 15339906
  9. Pituitary adenylate cyclase activating polypeptide reduces kv1.4 epression in olfactory bulb. PMID: 16426762
  10. In experimental autoimmune encephalomyelitis, Kv1.4 immunoreactivity was detected in or around lesions already during disease onset with a peak early and a subsequent decrease in the late phase of the disease. PMID: 17600124

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Subcellular Location
Cell membrane; Multi-pass membrane protein. Cell projection, axon.
Protein Families
Potassium channel family, A (Shaker) (TC 1.A.1.2) subfamily, Kv1.4/KCNA4 sub-subfamily
Tissue Specificity
Expressed in the brain, lens and retina.
Database Links
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