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Rabbit Anti-Exportin 4 antibody
XPO4 belongs to a large family of karyopherins (see MIM 602738) that mediate the transport of proteins and other cargo between the nuclear and cytoplasmic compartments (Lipowsky et al., 2000 [PubMed 10944119]).[supplied by OMIM, Mar 2009]
Function:
Mediates the nuclear export of proteins (cargos) with broad substrate specificity. In the nucleus binds cooperatively to its cargo and to the GTPase Ran in its active GTP-bound form. Docking of this trimeric complex to the nuclear pore complex (NPC) is mediated through binding to nucleoporins. Upon transit of a nuclear export complex into the cytoplasm, disassembling of the complex and hydrolysis of Ran-GTP to Ran-GDP (induced by RANBP1 and RANGAP1, respectively) cause release of the cargo from the export receptor. XPO4 then return to the nuclear compartment and mediate another round of transport. The directionality of nuclear export is thought to be conferred by an asymmetric distribution of the GTP- and GDP-bound forms of Ran between the cytoplasm and nucleus.
Subcellular Location:
Cytoplasm. Nucleus. Shuttles between the nucleus and the cytoplasm.
Similarity:
Belongs to the exportin family.
SWISS:
Q9C0E2
Gene ID:
64328
Database links:
Entrez Gene: 64328 Human
Entrez Gene: 57258 Mouse
Entrez Gene: 290280 Rat
Omim: 611449 Human
SwissProt: Q9C0E2 Human
SwissProt: Q9ESJ0 Mouse
SwissProt: D3ZQI6 Rat
Unigene: 725169 Human
Unigene: 202747 Mouse
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