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Tbio
XPO4
Exportin-4

Protein Summary
Description
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. 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 ...more
Uniprot Accession IDs
Gene Name
Ensembl ID
  • ENST00000255305
  • ENSP00000255305
  • ENSG00000132953

Symbol
  • KIAA1721
  • exp4
Illumination Graph
Knowledge Table
Most Knowledge About
Knowledge Value (0 to 1 scale)
histone modification site profile
0.88
transcription factor perturbation
0.88
drug perturbation
0.87
microRNA
0.85
interacting protein
0.81


IDG Development Level Summary
Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 86.17   (req: < 5)
Gene RIFs: 9   (req: <= 3)
Antibodies: 46   (req: <= 50)
Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 86.17   (req: >= 5)
Gene RIFs: 9   (req: > 3)
Antibodies: 46   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 3
Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0
Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0