Recombinant Mouse Importin Subunit Beta-1 (KPNB1) Protein (His)

Beta LifeScience SKU/CAT #: BLC-04351P
Greater than 90% as determined by SDS-PAGE.
Greater than 90% as determined by SDS-PAGE.

Recombinant Mouse Importin Subunit Beta-1 (KPNB1) Protein (His)

Beta LifeScience SKU/CAT #: BLC-04351P
Our products are highly customizable to meet your specific needs. You can choose options such as endotoxin removal, liquid or lyophilized forms, preferred tags, and the desired functional sequence range for proteins. Submitting a written inquiry expedites the quoting process.

Submit an inquiry today to inquire about all available size options and prices! Connect with us via the live chat in the bottom corner to receive immediate assistance.

Product Overview

Description Recombinant Mouse Importin Subunit Beta-1 (KPNB1) Protein (His) is produced by our E.coli expression system. This is a full length protein.
Purity Greater than 90% as determined by SDS-PAGE.
Uniprotkb P70168
Target Symbol KPNB1
Synonyms 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)
Expression System E.coli
Tag N-6His
Target Protein Sequence MELITILEKTVSPDRLELEAAQKFLERAAVENLPTFLVELSRVLANPGNSQVARVAAGLQIKNSLTSKDPDIKAQYQQRWLAIDANARREVKNYVLQTLGTETYRPSSASQCVAGIACAEIPVSQWPELIPQLVANVTNPNSTEHMKESTLEAIGYICQDIDPEQLQDKSNEILTAIIQGMRKEEPSNNVKLAATNALLNSLEFTKANFDKESERHFIMQVVCEATQCPDTRVRVAALQNLVKIMSLYYQYMETYMGPALFAITIEAMKSDIDEVALQGIEFWSNVCDEEMDLAIEASEAAEQGRPPEHTSKFYAKGALQYLVPILTQTLTKQDENDDDDDWNPCKAAGVCLMLLSTCCEDDIVPHVLPFIKEHIKNPDWRYRDAAVMAFGSILEGPEPNQLKPLVIQAMPTLIELMKDPSVVVRDTTAWTVGRICELLPEAAINDVYLAPLLQCLIEGLSAEPRVASNVCWAFSSLAEAAYEAADVADDQEEPATYCLSSSFELIVQKLLETTDRPDGHQNNLRSSAYESLMEIVKNSAKDCYPAVQKTTLVIMERLQQVLQMESHIQSTSDRIQFNDLQSLLCATLQNVLRKVQHQDALQISDVVMASLLRMFQSTAGSGGVQEDALMAVSTLVEVLGGEFLKYMEAFKPFLGIGLKNYAEYQVCLAAVGLVGDLCRALQSNILPFCDEVMQLLLENLGNENVHRSVKPQILSVFGDIALAIGGEFKKYLEVVLNTLQQASQAQVDKSDFDMVDYLNELRESCLEAYTGIVQGLKGDQENVHPDVMLVQPRVEFILSFIDHIAGDEDHTDGVVACAAGLIGDLCTAFGKDVLKLVEARPMIHELLTEGRRSKTNKAKTLATWATKELRKLKNQA
Expression Range 1-876aa
Protein Length Full Length
Mol. Weight 101.2kDa
Research Area Others
Form Liquid or Lyophilized powder
Buffer Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage 1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

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

KEGG: mmu:16211

STRING: 10090.ENSMUSP00000001479

UniGene: PMID: 26452501

  • KPNB1 may play a key role in the inflammation process of rheumatoid arthritis via STAT3 signal transduction pathway. PMID: 26879143
  • 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
  • Ei24 can bind specifically to IMPbeta1 and IMPalpha2 to impede their normal role in nuclear import. PMID: 24821838
  • Identification of a karyopherin beta1/beta2 proline-tyrosine nuclear localization signal in huntingtin protein. PMID: 23012356
  • 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
  • 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
  • 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
  • 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
  • results show the crystal structure of importin-beta complexed with the active form of SREBP-2 PMID: 14645851
  • 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
  • Importin-beta features many more binding spots for nucleoporins than suspected so far. PMID: 16338415
  • 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
  • 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
  • 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
  • reduction of the affinity by RanGTP really occurs at the nucleoplasmic side of the entire nuclear pore complex PMID: 18845677
  • 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
  • FAQs

    Please fill out the Online Inquiry form located on the product page. Key product information has been pre-populated. You may also email your questions and inquiry requests to sales1@betalifesci.com. We will do our best to get back to you within 4 business hours.

    Feel free to use the Chat function to initiate a live chat. Our customer representative can provide you with a quote immediately.

    Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

    Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

    Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

    Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

    To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.

    Recently viewed