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  4. Recombinant Human Potassium voltage-gated channel subfamily A member 4 (KCNA4), partial

Recombinant Human Potassium voltage-gated channel subfamily A member 4 (KCNA4), partial

  • 中文名稱：
    人KCNA4重組蛋白
  • 貨號：
    CSB-YP012009HU1
  • 規格：
  • 來源：
    Yeast
  • 其他：
  • 中文名稱：
    人KCNA4重組蛋白
  • 貨號：
    CSB-EP012009HU1
  • 規格：
  • 來源：
    E.coli
  • 其他：
  • 中文名稱：
    人KCNA4重組蛋白
  • 貨號：
    CSB-EP012009HU1-B
  • 規格：
  • 來源：
    E.coli
  • 共軛：
    Avi-tag Biotinylated

    E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.

  • 其他：
  • 中文名稱：
    人KCNA4重組蛋白
  • 貨號：
    CSB-BP012009HU1
  • 規格：
  • 來源：
    Baculovirus
  • 其他：
  • 中文名稱：
    人KCNA4重組蛋白
  • 貨號：
    CSB-MP012009HU1
  • 規格：
  • 來源：
    Mammalian cell
  • 其他：

產品詳情

  • 純度：
    >85% (SDS-PAGE)
  • 基因名：
    KCNA4
  • Uniprot No.：
  • 別名：
    KCNA4; KCNA4L; Potassium voltage-gated channel subfamily A member 4; HPCN2; Voltage-gated K(+ channel HuKII; Voltage-gated potassium channel HBK4; Voltage-gated potassium channel HK1; Voltage-gated potassium channel subunit Kv1.4
  • 種屬：
    Homo sapiens (Human)
  • 蛋白長度：
    Partial
  • 蛋白標簽：
    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.
  • 產品提供形式：
    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.
  • 復溶：
    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.
  • 儲存條件：
    Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
  • 保質期：
    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.
  • 貨期：
    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.
  • 注意事項：
    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.

產品評價

靶點詳情

  • 功能：
    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.
  • 基因功能參考文獻：
    1. Expression of Kv1.4 appears to increase in the spinal cord of mice modelling remitting-relapsing experimental allergic encephalomyelitis (rrEAE) in peak and remitting phases. PMID: 22560931
    2. Detection of the methylation prevalence of KCNA4 and CYP26B1 together in serum demonstrated the good sensitivity and specificityin gastric cancer PMID: 21945024
    3. Sialylated N-glycans uniquely impact gating of a mammalian Shaker family K(v) channel isoform, K(v)1.5, but have no effect on gating of a second Shaker isoform, K(v)1.4. PMID: 19961828
    4. N-type inactivation in hKv1.4 is regulated by pH(i) in the physiologic range through ionization of specific amino acid residues in the ball domain. PMID: 12065763
    5. Novel role for GIP in regulating K(V)1.4 cell surface expression and modulation of A-type potassium currents PMID: 15955806
    6. Fast inactivation in human Kv1.4 is modulated by structural elements in the C-terminus, suggesting that the process involves the concerted action of the N- and C-termini. PMID: 16308273
    7. The results demonstrate that the human Kvbeta1.1 and Kvbeta1.2 subunits regulate the proportion of wild-type Kv1.4-1.1 channels that are available to open. PMID: 17156368
    8. Ginsenoside Rg3 inhibits KV1.4 channel currents by interacting with the lysine531 residue. PMID: 17959711
    9. Thr-330 of Kv1.4 serves to interlock the voltage-sensing and gating domains of adjacent monomers, thereby yielding a structure competent for the surface expression of functional tetramers PMID: 18640987
    10. Both arachidonic acid and Trolox potently modulate Kv1.4 and Kv4.2 channel alpha-subunits, thereby presumably tuning presynaptic transmitter release and postsynaptic somatodendritic excitability in synaptic transmission and plasticity. PMID: 19453640

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  • 亞細胞定位：
    Cell membrane; Multi-pass membrane protein. Cell projection, axon.
  • 蛋白家族：
    Potassium channel family, A (Shaker) (TC 1.A.1.2) subfamily, Kv1.4/KCNA4 sub-subfamily
  • 組織特異性：
    Expressed in brain, and at lower levels in the testis, lung, kidney, colon and heart. Detected in heart ventricle.
  • 數據庫鏈接：

    HGNC: 6222

    OMIM: 176266

    KEGG: hsa:3739

    STRING: 9606.ENSP00000328511

    UniGene: Hs.592002



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