Rabbit anti-Human KPNA5 Polyclonal Antibody

Uniprot Id

O15131

Target Species

Human

Target Name

KPNA5

Target Full Name

Importin subunit alpha-6

Target Function

Functions in nuclear protein import as an adapter protein for nuclear receptor KPNB1. Binds specifically and directly to substrates containing either a simple or bipartite NLS motif. 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 nuclear import of STAT1 homodimers and STAT1/STAT2 heterodimers by recognizing non-classical NLSs of STAT1 and STAT2 through ARM repeats 8-9. Recognizes influenza A virus nucleoprotein through ARM repeat 7-9 In vitro, mediates the nuclear import of human cytomegalovirus UL84 by recognizing a non-classical NLS.

Target Subcellular Location

Cytoplasm.

Target Protein Families

Importin alpha family

Target Tissue Specificity

Testis.

Target Synonyms

IMA5_HUMAN; Importin alpha 6; Importin subunit alpha 6; Importin subunit alpha-6; IPOA 6; IPOA6; Karyopherin alpha 5; Karyopherin alpha 5 importin alpha 6; Karyopherin subunit alpha 5; Karyopherin subunit alpha-5; KPNA 5; KPNA5; SRP 6; SRP6

Target Background

The transport of molecules between the nucleus and the cytoplasm in eukaryotic cells is mediated by the nuclear pore complex (NPC) which consists of 60-100 proteins and is probably 120 million daltons in molecular size. Small molecules (up to 70 kD) can pass through the nuclear pore by nonselective diffusion; larger molecules are transported by an active process. Most nuclear proteins contain short basic amino acid sequences known as nuclear localization signals (NLSs). KPNA5 protein belongs to the importin alpha protein family and is thought to be involved in NLS-dependent protein import into the nucleus.