Recombinant Human Importin-5 (IPO5), Truncated

Uniprot Id

O00410

Target Species

Human

Target Name

IPO5

Target Full Name

Importin-5

Target Function

Functions in nuclear protein import as nuclear transport receptor. Serves as receptor for nuclear localization signals (NLS) in cargo substrates. Is thought to mediate docking of the importin/substrate complex to the nuclear pore complex (NPC) through binding to nucleoporin 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 the importin, the importin/substrate complex dissociates and importin is re-exported from the nucleus to the cytoplasm where GTP hydrolysis releases Ran. 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 the nuclear import of ribosomal proteins RPL23A, RPS7 and RPL5. Binds to a beta-like import receptor binding (BIB) domain of RPL23A. In vitro, mediates nuclear import of H2A, H2B, H3 and H4 histones. Binds to CPEB3 and mediates its nuclear import following neuronal stimulation. In case of HIV-1 infection, binds and mediates the nuclear import of HIV-1 Rev

Target Subcellular Location

Cytoplasm. Nucleus. Nucleus, nucleolus. Note=Nucleus; nuclear rim. Found particularly in the nuclear rim and nucleolus.

Target Protein Families

Importin beta family, Importin beta-3 subfamily

Target Synonyms

DKFZp686O1576; FLJ43041; IMB3; Imp5; Importin 5; Importin beta 3 subunit; Importin subunit beta 3; Importin subunit beta-3; Importin-5; IPO 5; IPO5; IPO5_HUMAN; Karyopherin beta 3; Karyopherin beta-3; KPNB3; MGC2068; Pse1; Ran binding protein 5; Ran GTP binding protein 5; Ran-binding protein 5; RanBP 5; RanBP5