ID:IPO9_HUMAN DESCRIPTION: RecName: Full=Importin-9; Short=Imp9; AltName: Full=Ran-binding protein 9; Short=RanBP9; FUNCTION: Functions in nuclear protein import as nuclear transport receptor. Serves as receptor for nuclear localization signals (NLS) in cargo substrates. Is thought to mediate docking of the importin/substrate complex to the nuclear pore complex (NPC) through binding to nucleoporin 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 the importin, the importin/substrate complex dissociates and importin is re-exported from the nucleus to the cytoplasm where GTP hydrolysis releases Ran. 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 (By similarity). Mediates the nuclear import of H2B histone (By similarity), RPS7 and RPL18A. Prevents the cytoplasmic aggregation of RPS7 and RPL18A by shielding exposed basic domains. May also import H2A, H3, H4 histones (By similarity), RPL4 and RPL6. SUBUNIT: Binds with high affinity to RPS7 and RPL18A. The binding is coupled to RanGTP cycles. May bind H2A, H3, H4 histones (By similarity), RPL4 and RPL6 with low affinity. Interacts with PPP2R1A and PPP2R1B. SUBCELLULAR LOCATION: Cytoplasm (By similarity). Nucleus (By similarity). SIMILARITY: Belongs to the importin beta family. SIMILARITY: Contains 1 importin N-terminal domain. SEQUENCE CAUTION: Sequence=AAF28951.1; Type=Frameshift; Positions=982; Sequence=BAA86506.1; Type=Erroneous initiation; Sequence=BAA91588.1; Type=Erroneous initiation; Sequence=BAB55181.1; Type=Erroneous initiation; Sequence=BAC11173.1; Type=Erroneous initiation;
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on Q96P70
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
US Server
Sequence and Links to Tools and Databases 
Common Gene Haplotype Alleles 
