Protein: Importin-7 (Q9EPL8)
Organism: Mus musculus (Mouse)
Function: Functions in nuclear protein import, either by acting as autonomous nuclear transport receptor or as an adapter-like protein in association with the importin-beta subunit KPNB1. Acting autonomously is thought to serve itself as receptor for nuclear localization signals (NLS) and to promote translocation of import substrates through the nuclear pore complex (NPC) by an energy requiring, Ran-dependent mechanism. At the nucleoplasmic side of the NPC, Ran binds to importin, the importin/substrate complex dissociates and importin is re-exported from the nucleus to the cytoplasm where GTP hydrolysis releases Ran. Mediates autonomously the nuclear import of ribosomal proteins RPL23A, RPS7 and RPL5 (By similarity). In association with KPNB1 mediates the nuclear import of H1 histone and the Ran-binding site of IPO7 is not required but synergizes with that of KPNB1 in importin/substrate complex dissociation (By similarity). Promotes odontoblast differentiation via promoting nuclear translocation of DLX3, KLF4, SMAD2, thereby facilitating the transcription of target genes that play a role in odontoblast differentiation. Facilitates BMP4-induced translocation of SMAD1 to the nucleus and recruitment to the MSX1 gene promoter, thereby promotes the expression of the odontogenic regulator MSX1 in dental mesenchymal cells. Also promotes odontoblast differentiation by facilitating the nuclear translocation of HDAC6 and subsequent repression of RUNX2 expression. Inhibits osteoblast differentiation by inhibiting nuclear translocation of RUNX2 and therefore inhibition of RUNX2 target gene transcription . In vitro, mediates nuclear import of H2A, H2B, H3 and H4 histones
Subcellular location: Cytoplasm. Nucleus. Note=Localizes to the nucleus in the presence of BMP4
InterPro domains:
- IPR011989: Armadillo-like helical (homologous_superfamily) [1-998]
- IPR001494: Importin-beta, N-terminal domain (domain) [22-101]
- IPR013713: Exportin-2, central domain (domain) [200-440]
- IPR016024: Armadillo-type fold (homologous_superfamily) [3-996]
- IPR058669: Importin-7/11-like, TPR repeats (domain) [616-898]
Sequence:
MDPNTIIEALRGTMDPALREAAERQLNEAHKSLNFVSTLLQITMSEQLDLPVRQAGVIYLKNMITQYWPDREATPGDIAPYTIPEEDRHCIRENIVEAIIHSPELIRVQLTTCIHHIIKHDYPSRWTAIVDKIGFYLQSDNSACWLGILLCLYQLVKNYEYKKPEERSPLVAAMQHFLPVLKDRFIQLLSDQSDQSVLIQKQIFKIFYALVQYTLPLELINQQNLTEWVEILKTVVNRDVPNETLQVEEDDRPELPWWKCKKWALHILARLFERYGSPGNVSKEYNEFAEVFLKAFAVGVQQVLLKVLYQYKEKQYMAPRVLQQTLNYINQGVSHALTWKNLKPHIQGIIQDVIFPLMCYTDADEELWQEDPYEYIRMKFDVFEDFISPTTAAQTLLFTACSKRKEVLQKTMGFCYQILTEPNADPRKKDGALHMIGSLAEILLKKKIYKDQMEYMLQNHVFPLFSSELGYMRARACWVLHYFCEVKFKSDQNLQTALELTRRCLIDDREMPVKVEAAIALQVLISNQEKAKEYITPFIRPVMQALLHIIRETENDDLTNVIQKMICEYSEEVTPIAVEMTQHLAMTFNQVIQTGPDEEGSDDKAVTAMGILNTIDTLLSVVEDHKEITQQLEGICLQVIGTVLQQHVLEFYEEIFSLAHSLTCQQVSPQMWQLLPLVFEVFQQDGFDYFTDMMPLLHNYVTVDTDTLLSDTKYLEMIYSMCKKVLTGVAGEDAECHAAKLLEVIILQCKGRGIDQCIPLFVEAALERLTREVKTSELRTMCLQVAIAALYYNPHLLLNTLENLRFPNNVEPVTNHFITQWLNDVDCFLGLHDRKMCVLGLCALIDMEQIPQVLNQVSGQILPAFILLFNGLKRAYACHAEHENDSDDDEDAEDDDETEELGSDEDDIDEDGQEYLEILAKQAGEDGDDEDWEEDDAEETALEGYSTIIDDEDNPVDEYQIFKAIFQTIQNRNPVWYQALTHGLNEEQRKQLQDIATLADQRRAAHESKMIEKHGGYKFSAPVVPSSFNFGGPAPGMN
Predicted GO terms:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0005515 (protein binding), GO:0042393 (histone binding)
Biological Process (BP): GO:0008150 (biological process), GO:0002376 (immune system process), GO:0009987 (cellular process), GO:0051179 (localization), GO:0050896 (response to stimulus), GO:0044419 (biological process involved in interspecies interaction between organisms), GO:0051234 (establishment of localization), GO:0009605 (response to external stimulus), GO:0051641 (cellular localization), GO:0006950 (response to stress), GO:0051707 (response to other organism), GO:0006955 (immune response), GO:0009607 (response to biotic stimulus), GO:0033036 (macromolecule localization), GO:0006952 (defense response), GO:0070727 (cellular macromolecule localization), GO:0051649 (establishment of localization in cell), GO:0043207 (response to external biotic stimulus), GO:0046907 (intracellular transport), GO:0045087 (innate immune response), GO:0045184 (establishment of protein localization), GO:0006810 (transport), GO:0098542 (defense response to other organism), GO:0071702 (organic substance transport), GO:0051169 (nuclear transport), GO:0006886 (intracellular protein transport), GO:0071705 (nitrogen compound transport), GO:0008104 (protein localization), GO:0015031 (protein transport), GO:0072594 (establishment of protein localization to organelle), GO:0006606 (protein import into nucleus), GO:0006913 (nucleocytoplasmic transport), GO:0033365 (protein localization to organelle), GO:0034504 (protein localization to nucleus), GO:0051170 (import into nucleus)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0005737 (cytoplasm), GO:0043229 (intracellular organelle), GO:0043227 (membrane-bounded organelle), GO:0043231 (intracellular membrane-bounded organelle), GO:0005634 (nucleus)