Human Karyopherin Alpha 2 (KPNa2) Protein

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Description
Recombinant Karyopherin Alpha 2 (KPNa2) is a recombinant Human protein produced in a Prokaryotic expression system (E. coli).
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Product specifications
Category | Proteins and Peptides |
Immunogen Target | Karyopherin Alpha 2 (KPNa2) |
Host | E. coli |
Origin | Human |
Conjugation | Unconjugated |
Observed MW | Molecular Weight: Calculated MW: 31.0 kDa Observed MW (SDS-PAGE): 27 kDa Concentration: Prior to lyophilization: 200 µg/ml Sequence Fragment: Ala157-Gln412 Tag: N-terminal His tag |
Expression | Recombinant |
Purity | > 97% |
Size 1 | 10 µg |
Size 2 | 50 µg |
Size 3 | 100 µg |
Size 4 | 200 µg |
Size 5 | 500 µg |
Form | Lyophilized To keep the original salt concentration, we recommend reconstituting to the original concentration prior to lyophilization (see Concentration) in ddH2O. If a lower concentration is required, dilute in 20 mM Tris, 150 mM NaCl, pH 8.0. If a higher concentration is required, the product can be reconstituted directly in 20 mM Tris, 150 mM NaCl, pH 8.0, though please note that this will change the overall salt concentration. The stock concentration should be between 0.1-1.0 mg/ml. Do not vortex. |
Tested Applications | WB, SDS-PAGE |
Buffer | Prior to lyophilization: 20 mM Tris, 150 mM NaCl, pH 8.0, containing 1 mM EDTA, 1 mM DTT, 0.01% Sarcosyl, 5% Trehalose and Proclin-300. |
Availability | Shipped within 5-7 working days. |
Storage | Store at 2-8 °C for up to one month. Store at -80 °C for up to one year. Avoid repeated freeze/thaw cycles. |
Dry Ice | No |
UniProt ID | P52292 |
Alias | KPNA2,IPOA1, QIP2, RCH1, SRP1alpha, Karyopherin alpha 2, SRP1-alpha, karyopherin subunit alpha 2, PTAC58 |
Background | Protein KPNA2 |
Status | RUO |
Note | This product is for research use only. Not for human consumption, cosmetic, therapeutic or diagnostic use. |
Descripción
KPNA2, also known as importin-α2, is a key nuclear transport adaptor protein that binds cargo proteins containing classical nuclear localization signals (NLS). It works in conjunction with importin-β to translocate the cargo through the nuclear pore complex (NPC) into the nucleus. KPNA2 is ubiquitously expressed and is involved in processes like gene expression, DNA repair, and cell proliferation. It has been shown to play a significant role in cancer biology, where overexpression of KPNA2 is associated with tumor progression, metastasis, and poor prognosis in cancers such as breast, lung, and liver cancers. KPNA2 also facilitates the nuclear import of viral proteins, making it a target in viral pathogenesis. Knockout studies indicate that KPNA2 is essential for cell viability and differentiation, particularly during embryogenesis and immune cell development.
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Functions in nuclear protein import as an adapter protein for nuclear receptor KPNB1. Binds specifically and directly to substrates containing either a simple or bipartite NLS motif. Docking of the importin/substrate complex to the nuclear pore complex(NPC) is mediated by KPNB1 through binding to nucleoporin FxFG repeats and the complex is subsequently translocated through the pore by an energy requiring, Ran-dependent mechanism. At the nucleoplasmic side of the NPC, Ran binds to importin-beta and the three components separate and importin-alpha and-beta are re-exported from the nucleus to the cytoplasm where GTP hydrolysis releases Ran from importin. The directionality of nuclear import is thought to be conferred by an asymmetric distribution of the GTP-and GDP-bound forms of Ran between the cytoplasm and nucleus.
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