05-1530 | Anti-Importin beta-1 Antibody, clone 3H14

100 µg  
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      Replacement Information

      Key Spec Table

      Species ReactivityKey ApplicationsHostFormatAntibody Type
      HWB, ICCMPurifiedMonoclonal Antibody
      Catalogue Number05-1530
      DescriptionAnti-Importin beta-1 Antibody, clone 3H14
      Alternate Names
      • Karyopherin subunit beta-1
      • Nuclear factor P97
      • importin 1
      • importin 90
      • importin beta-1 subunit
      • karyopherin (importin) beta 1
      • karyopherin beta 1
      Background InformationImportin beta-1 (also known as Importin subunit beta-1) facilitates nuclear protein import. This occurs either though association with a nuclear localization signal (NLS) and an adapter protein , such as an importin-alpha subunit, which which binds to nuclear, or directly where the protein acts as autonomous nuclear transport receptor.
      Import of macromolecules containing a NLS requires a heterodimer of importin alpha and beta subunits also called as karyopherins. Importin alpha binds the cytoplasmic NLS-containing protein and importin beta docks the complex at the cytoplasmic side of the nuclear pore complex. Movement through the nuclear pore is mediated by the small GTP binding protein Ran via an energy requiring mechanism. Using nucleotide triphosphates and Ran, the nuclear transport complex moves into the nuclear pore and the importin subunits dissociate. Importin alpha and its passenger protein enter the nucleoplasm while importin beta remains at the pore.
      Product Information
      • HeLa cell lysate
      PresentationPurified mouse monoclonal IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4, 150 mM NaCl) with 0.05% sodium azide.
      ApplicationUse Anti-Importin beta-1 Antibody, clone 3H14 (Mouse Monoclonal Antibody) validated in WB, ICC to detect Importin beta-1 also known as Karyopherin subunit beta-1, Nuclear factor P97.
      Key Applications
      • Western Blotting
      • Immunocytochemistry
      Biological Information
      ImmunogenRecombinant protein corresponding to human Importin beta-1.
      ConcentrationPlease refer to the Certificate of Analysis for the lot-specific concentration.
      SpecificityThis antibody recognizes Importin beta-1.
      Species Reactivity
      • Human
      Antibody TypeMonoclonal Antibody
      Entrez Gene Number
      Entrez Gene SummaryNucleocytoplasmic transport, a signal- and energy-dependent process, takes place through nuclear pore complexes embedded in the nuclear envelope. The import of proteins containing a nuclear localization signal (NLS) requires the NLS import receptor, a heterodimer of importin alpha and beta subunits also known as karyopherins. Importin alpha binds the NLS-containing cargo in the cytoplasm and importin beta docks the complex at the cytoplasmic side of the nuclear pore complex. In the presence of nucleoside triphosphates and the small GTP binding protein Ran, the complex moves into the nuclear pore complex and the importin subunits dissociate. Importin alpha enters the nucleoplasm with its passenger protein and importin beta remains at the pore. Interactions between importin beta and the FG repeats of nucleoporins are essential in translocation through the pore complex. The protein encoded by this gene is a member of the importin beta family. [provided by RefSeq].
      Gene Symbol
      • KPNB1
      • IMB1
      • IPO1
      • IPOB
      • Impnb
      • Importin-90
      • NTF97
      Purification MethodProtein G Purified
      UniProt Number
      UniProt SummaryFUNCTION: 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. In case of HIV-1 infection, binds and mediates the nuclear import of HIV-1 Rev. Imports PRKCI into the nucleus.

      SUBUNIT STRUCTURE: Forms a complex with an importin alpha subunit. Forms a heterodimer with IPO7. Interacts with IPO7, SNUPN, RPL23A and XPO1. The KPNB1/IPO7 heterodimer interacts with H1 histone. Interacts with H2A, H2B, H3 and H4 histones By similarity. Component of an import snRNP complex composed of KPNB1, SNUPN, SMN1 and ZNF259. Component of a nuclear export receptor complex composed of KPNB1, Ran, SNUPN and XPO1. Binds to HIV-1 Rev and Tat. Interacts with HTLV-1 Rex. Interacts with SRY. Interacts with PRKCI/atypical protein kinase C iota. Interacts with human respiratory syncytial virus (HRSV) protein M.

      SUBCELLULAR LOCATION: Cytoplasm. Nucleus envelope

      SEQUENCE SIMILARITIES: Belongs to the importin beta family.

      Contains 8 HEAT repeats.

      Contains 1 importin N-terminal domain.
      Molecular Weight~ 97 kDa
      Physicochemical Information
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Quality AssuranceEvaluated by Western Blot in HeLa cell lysate.

      Western Blot Analysis: 0.5 µg/ml of this antibody detected Importin beta-1 on 10 µg of HeLa cell lysate.
      Usage Statement
      • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
      Storage and Shipping Information
      Storage ConditionsStable for 1 year at 2-8°C from date of receipt.
      Packaging Information
      Material Size100 µg
      Transport Information
      Supplemental Information




      Safety Data Sheet (SDS) 

      Certificates of Analysis

      TitleLot Number
      Anti-Importin beta-1, clone 3H14 - 2119009 2119009
      Anti-Importin beta-1, clone 3H14 - 2272143 2272143
      Anti-Importin beta-1, clone 3H14 - NRG1693921 NRG1693921
      Anti-Importin beta-1, clone 3H14 -2504835 2504835
      Anti-Importin beta-1, clone 3H14 -2567026 2567026
      Anti-Importin beta-1, clone 3H14 -2676578 2676578
      Anti-Importin beta-1, clone 3H14 -2709636 2709636
      Anti-Importin beta-1, clone 3H14 -2820678 2820678