Recombinant D. melanogaster NTF97/Importin beta protein (ab90616)



  • NatureRecombinant
  • SourceEscherichia coli
  • Amino Acid Sequence
    • SpeciesDrosophila melanogaster


Our Abpromise guarantee covers the use of ab90616 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications


  • Purity> 95 % SDS-PAGE.

  • FormLiquid
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.

    Preservative: None
    Constituents: 5% Glycerol, 50mM Tris HCl, 2mM DTE (1, 4-Dithioerythritol), pH 7.5

General Info

  • Alternative names
    • IMB 1
    • IMB1
    • IMB1_HUMAN
    • Impnb
    • Importin 90
    • Importin beta 1
    • Importin beta 1 subunit
    • Importin subunit beta-1
    • Importin-90
    • IPOB
    • Karyopherin beta 1
    • Karyopherin beta 1 subunit
    • Karyopherin subunit beta-1
    • KPNB 1
    • Kpnb1
    • MGC2155
    • MGC2156
    • MGC2157
    • NTF 97
    • NTF97
    • Nuclear factor P97
    • Pore targeting complex 97 kDa subunit
    • PTAC97
    see all
  • FunctionFunctions 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.
  • Sequence similaritiesBelongs to the importin beta family.
    Contains 8 HEAT repeats.
    Contains 1 importin N-terminal domain.
  • Cellular localizationCytoplasm. Nucleus envelope.
  • Information by UniProt

References for Recombinant D. melanogaster NTF97/Importin beta protein (ab90616)

ab90616 has not yet been referenced specifically in any publications.

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