Recombinant Mouse Importin subunit beta-1 (Kpnb1), partial

Code CSB-YP012490MO
MSDS
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Source Yeast
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Code CSB-EP012490MO-B
MSDS
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Source E.coli
Conjugate 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.
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Code CSB-BP012490MO
MSDS
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Source Baculovirus
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Code CSB-MP012490MO
MSDS
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Source Mammalian cell
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Product Details

Purity
>85% (SDS-PAGE)
Target Names
Kpnb1
Uniprot No.
Alternative Names
Kpnb1; Impnb; Importin subunit beta-1; Karyopherin subunit beta-1; Nuclear factor p97; Pore targeting complex 97 kDa subunit; PTAC97; SCG
Species
Mus musculus (Mouse)
Protein Length
Partial
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
Functions in nuclear protein import, either in association with an adapter protein, like an importin-alpha subunit, which binds to nuclear localization signals (NLS) in cargo substrates, or by acting as autonomous nuclear transport receptor. Acting autonomously, serves itself as NLS receptor. 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. Mediates autonomously the nuclear import of ribosomal proteins RPL23A, RPS7 and RPL5. Binds to a beta-like import receptor binding (BIB) domain of RPL23A. In association with IPO7 mediates the nuclear import of H1 histone. In vitro, mediates nuclear import of H2A, H2B, H3 and H4 histones. Imports SNAI1 and PRKCI into the nucleus.
Gene References into Functions
  1. KPNb1 acts as a positive regulator in the NF-kappaB pathway to enhance palmitate-induced inflammation response. PMID: 26452501
  2. KPNB1 may play a key role in the inflammation process of rheumatoid arthritis via STAT3 signal transduction pathway. PMID: 26879143
  3. The study revealed a regulatory role of the p97-Npl4-Ufd1 complex in regulating a partial degradation of the NF-kappaB subunit p100. PMID: 26112410
  4. Ei24 can bind specifically to IMPbeta1 and IMPalpha2 to impede their normal role in nuclear import. PMID: 24821838
  5. Identification of a karyopherin beta1/beta2 proline-tyrosine nuclear localization signal in huntingtin protein. PMID: 23012356
  6. translation of Importin beta1 mRNA enables separation of cytoplasmic and nuclear transport functions of importins and is required for efficient retrograde signaling in injured axons. PMID: 22841314
  7. A critical function of RanBP2 is to capture recycling RanGTP-importin-beta complexes at cytoplasmic fibrils to allow for adequate classical nuclear localization signal-mediated cargo import. PMID: 21859863
  8. Ap4A hydrolase was found to translocate into the nuclei of mast cells following immunological activation; found its immunologically dependent association with importin beta PMID: 21402779
  9. Data show that MRTF-A contains an unusually long bipartite nuclear localisation signal embedded within the RPEL domain, that uses the importin (Imp)alpha/beta-dependent import pathway, and that import is inhibited by G-actin. PMID: 20818336
  10. results show the crystal structure of importin-beta complexed with the active form of SREBP-2 PMID: 14645851
  11. Results suggest that the importin alpha/beta system is involved in nuclear entry of mammalian clock components Cry2 and Per2, which is indispensable to transcriptional oscillation of clock genes PMID: 15689618
  12. Importin-beta features many more binding spots for nucleoporins than suspected so far. PMID: 16338415
  13. These results demonstrated that the cause of post-implantation lethality of Ayu8108(geo/geo) homozygous embryos was impaired expression of the Kpnb1 gene. PMID: 16414015
  14. PTH1R forms a complex with the transport regulatory proteins, importin alpha(1) and importin beta, and nuclear PTH1R is associated with the nucleoplasm PMID: 16574786
  15. Importin beta1 protein is detected in selected germ and somatic cells in fetal gonads, with a striking perinuclear staining evident from embryonic day (E) 14.5 within testicular gonocytes PMID: 17654710
  16. reduction of the affinity by RanGTP really occurs at the nucleoplasmic side of the entire nuclear pore complex PMID: 18845677
  17. Dtaa show that importin beta and the integral nuclear pore glycoprotein Nup62 interact with hsp90, hsp70, p23, and the TPR domain proteins FKBP52 and PP5 during nuclear transport. PMID: 19581287

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Subcellular Location
Cytoplasm. Nucleus envelope.
Protein Families
Importin beta family, Importin beta-1 subfamily
Database Links
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