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RANBP1 RANBP1 RANBP2 RANBP2 NUP153 NUP153 RCC1 RCC1 IPO5 IPO5 KPNB1 KPNB1 HIVEP1 HIVEP1 CSE1L CSE1L KPNA3 KPNA3 EIF2B1 EIF2B1 EIF2B2 EIF2B2
"KPNA3" - karyopherin alpha 3 (importin alpha 4) in Homo sapiens
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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Predicted Interactions
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KPNA3karyopherin alpha 3 (importin alpha 4); Functions in nuclear protein import as an adapter protein for nuclear receptor KPNB1. Binds specifically and directly to substrates containing either a simple or bipartite NLS motif. Docking of the importin/substrate complex to the nuclear pore complex (NPC) is mediated by KPNB1 through binding to nucleoporin FxFG repeats 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 importin-beta and the three components separate and importin-alph [...] (521 aa)    
Predicted Functional Partners:
KPNB1
karyopherin (importin) beta 1; Functions in nuclear protein import, either in association with an adapter protein, like an importin-alpha subunit, which binds to nuclear localization signals (NLS) in cargo substrates, or by acting as autonomous nuclear transport receptor. Acting autonomously, serves itself as NLS receptor. Docking of the importin/substrate complex to the nuclear pore complex (NPC) is mediated by KPNB1 through binding to nucleoporin FxFG repeats and the complex is subsequently translocated through the pore by an energy requiring, Ran-dependent mechanism. At the nucleopl [...] (876 aa)
      score_image score_image   score_image   0.996
CSE1L
CSE1 chromosome segregation 1-like (yeast) (971 aa)
      score_image score_image   score_image   0.936
IPO5
importin 5; 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 re [...] (1115 aa)
      score_image score_image   score_image   0.889
NUP153
nucleoporin 153kDa; Component of the nuclear pore complex (NPC), a complex required for the trafficking across the nuclear envelope. Functions as a scaffolding element in the nuclear phase of the NPC essential for normal nucleocytoplasmic transport of proteins and mRNAs. Involved in the quality control and retention of unspliced mRNAs in the nucleus; in association with TPR, regulates the nuclear export of unspliced mRNA species bearing constitutive transport element (CTE) in a NXF1- and KHDRBS1-independent manner. Mediates TPR anchoring to the nuclear membrane at NPC. The repeat- cont [...] (1475 aa)
        score_image   score_image   0.889
RANBP1
RAN binding protein 1; Inhibits GTP exchange on Ran. Forms a Ran-GTP-RANBP1 trimeric complex. Increase GTP hydrolysis induced by the Ran GTPase activating protein RANGAP1. May act in an intracellular signaling pathway which may control the progression through the cell cycle by regulating the transport of protein and nucleic acids across the nuclear membrane (201 aa)
      score_image score_image   score_image   0.885
RANBP2
RAN binding protein 2; E3 SUMO-protein ligase which facilitates SUMO1 and SUMO2 conjugation by UBE2I. Involved in transport factor (Ran-GTP, karyopherin)-mediated protein import via the F-G repeat-containing domain which acts as a docking site for substrates. Could also have isomerase or chaperone activity and may bind RNA or DNA. Component of the nuclear export pathway. Specific docking site for the nuclear export factor exportin-1. Sumoylates PML at ’Lys-490’ which is essential for the proper assembly of PML-NB (3224 aa)
      score_image score_image   score_image   0.877
HIVEP1
human immunodeficiency virus type I enhancer binding protein 1; This protein specifically binds to the DNA sequence 5’- GGGACTTTCC-3’ which is found in the enhancer elements of numerous viral promoters such as those of SV40, CMV, or HIV-1. In addition, related sequences are found in the enhancer elements of a number of cellular promoters, including those of the class I MHC, interleukin-2 receptor, and interferon-beta genes. It may act in T-cell activation. Involved in activating HIV-1 gene expression. Isoform 2 and isoform 3 also bind to the IPCS (IRF1 and p53 common sequence) DNA sequ [...] (2718 aa)
        score_image   score_image   0.860
EIF2B1
eukaryotic translation initiation factor 2B, subunit 1 alpha, 26kDa; Catalyzes the exchange of eukaryotic initiation factor 2-bound GDP for GTP (305 aa)
        score_image       0.856
EIF2B2
eukaryotic translation initiation factor 2B, subunit 2 beta, 39kDa; Catalyzes the exchange of eukaryotic initiation factor 2-bound GDP for GTP (351 aa)
        score_image       0.856
RCC1
regulator of chromosome condensation 1; Guanine-nucleotide releasing factor that promotes the exchange of Ran-bound GDP by GTP. Involved in the regulation of onset of chromosome condensation in the S phase. Binds both to the nucleosomes and double-stranded DNA. RCC1-Ran complex (together with other proteins) acts as a component of a signal transmission pathway that detects unreplicated DNA. Plays a key role in nucleo- cytoplasmic transport, mitosis and nuclear-envelope assembly (452 aa)
      score_image score_image   score_image   0.844
Your Current Organism:
Homo sapiens
NCBI taxonomy Id: 9606
Other names: H. sapiens, Homo, Homo sapiens, human, man
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