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- Nuclear_transport abstract "The entry and exit of large molecules from the cell nucleus is tightly controlled by the nuclear pore complexes (NPCs). Although small molecules can enter the nucleus without regulation, macromolecules such as RNA and proteins require association with karyopherins called importins to enter the nucleus and exportins to exit.Protein that must be imported to the nucleus from the cytoplasm carry nuclear localization signals (NLS) that are bound by importins. A NLS is a sequence of amino acids that acts as a tag. They are diverse in their composition and most commonly hydrophilic, although hydrophobic sequences have also been documented. Proteins, transfer RNA, and assembled ribosomal subunits are exported from the nucleus due to association with exportins, which bind signaling sequences called nuclear export signals (NES). The ability of both importins and exportins to transport their cargo is regulated by the small Ras related GTPase, Ran. GTPases are enzymes that bind to a molecule called guanosine triphosphate (GTP) which they then hydrolyze to create guanosine diphosphate (GDP) and release energy. Ran is in a different conformation depending on whether it is bound to GTP or GDP. In its GTP bound state, Ran is capable of binding karyopherins (importins and exportins). Importins release cargo upon binding to RanGTP, while exportins must bind RanGTP to form a ternary complex with their export cargo. The dominant nucleotide binding state of Ran depends on whether it is located in the nucleus (RanGTP) or the cytoplasm (RanGDP).".
- Nuclear_transport thumbnail Rancycle_nuclearimport_nuclearexport.png?width=300.
- Nuclear_transport wikiPageExternalLink nuclearporecomplex.
- Nuclear_transport wikiPageExternalLink nuclearporecomplex2.
- Nuclear_transport wikiPageID "7125109".
- Nuclear_transport wikiPageLength "7322".
- Nuclear_transport wikiPageOutDegree "24".
- Nuclear_transport wikiPageRevisionID "642769035".
- Nuclear_transport wikiPageWikiLink Category:Cell_biology.
- Nuclear_transport wikiPageWikiLink Cell_nucleus.
- Nuclear_transport wikiPageWikiLink Conformational_change.
- Nuclear_transport wikiPageWikiLink Exportin.
- Nuclear_transport wikiPageWikiLink GTPase.
- Nuclear_transport wikiPageWikiLink GTPase-activating_protein.
- Nuclear_transport wikiPageWikiLink GTPase_activating_protein.
- Nuclear_transport wikiPageWikiLink Guanosine_triphosphate.
- Nuclear_transport wikiPageWikiLink Heterokaryon.
- Nuclear_transport wikiPageWikiLink Hydrolysis.
- Nuclear_transport wikiPageWikiLink Hydrolyze.
- Nuclear_transport wikiPageWikiLink Hydrophile.
- Nuclear_transport wikiPageWikiLink Hydrophilic.
- Nuclear_transport wikiPageWikiLink Hydrophobe.
- Nuclear_transport wikiPageWikiLink Hydrophobic.
- Nuclear_transport wikiPageWikiLink Importin.
- Nuclear_transport wikiPageWikiLink Karyopherin.
- Nuclear_transport wikiPageWikiLink NUTF2.
- Nuclear_transport wikiPageWikiLink Nuclear_export_signal.
- Nuclear_transport wikiPageWikiLink Nuclear_localization_sequence.
- Nuclear_transport wikiPageWikiLink Nuclear_localization_signal.
- Nuclear_transport wikiPageWikiLink Nuclear_pore.
- Nuclear_transport wikiPageWikiLink Nuclear_pore_complex.
- Nuclear_transport wikiPageWikiLink Nucleotide_exchange_factor.
- Nuclear_transport wikiPageWikiLink Post-translational_modification.
- Nuclear_transport wikiPageWikiLink Post-translational_modifications.
- Nuclear_transport wikiPageWikiLink Ran_(biology).
- Nuclear_transport wikiPageWikiLink Ran_(gene).
- Nuclear_transport wikiPageWikiLink Ribosome.
- Nuclear_transport wikiPageWikiLink Transfer_RNA.
- Nuclear_transport wikiPageWikiLink File:Rancycle_nuclearimport_nuclearexport.png.
- Nuclear_transport wikiPageWikiLinkText "Nuclear transport".
- Nuclear_transport wikiPageWikiLinkText "nuclear export factors".
- Nuclear_transport wikiPageWikiLinkText "nuclear export".
- Nuclear_transport wikiPageWikiLinkText "nuclear import".
- Nuclear_transport wikiPageWikiLinkText "nuclear localization".
- Nuclear_transport wikiPageWikiLinkText "nuclear transport".
- Nuclear_transport wikiPageWikiLinkText "protein shuttling".
- Nuclear_transport wikiPageWikiLinkText "shuttle".
- Nuclear_transport hasPhotoCollection Nuclear_transport.
- Nuclear_transport subject Category:Cell_biology.
- Nuclear_transport comment "The entry and exit of large molecules from the cell nucleus is tightly controlled by the nuclear pore complexes (NPCs). Although small molecules can enter the nucleus without regulation, macromolecules such as RNA and proteins require association with karyopherins called importins to enter the nucleus and exportins to exit.Protein that must be imported to the nucleus from the cytoplasm carry nuclear localization signals (NLS) that are bound by importins.".
- Nuclear_transport label "Nuclear transport".
- Nuclear_transport sameAs Transport_nuclear.
- Nuclear_transport sameAs Transporte_nuclear.
- Nuclear_transport sameAs m.025v3mj.
- Nuclear_transport sameAs Q994741.
- Nuclear_transport sameAs Q994741.
- Nuclear_transport sameAs 核運輸.
- Nuclear_transport wasDerivedFrom Nuclear_transport?oldid=642769035.
- Nuclear_transport depiction Rancycle_nuclearimport_nuclearexport.png.
- Nuclear_transport isPrimaryTopicOf Nuclear_transport.