Host Protein General Information (ID: PT1169)
  Protein Name
Transportin-2 (TNPO2)
  Gene Name
TNPO2
  Host Species
Homo sapiens
  Uniprot Entry Name
TNPO2_HUMAN
  Protein Families
Importin beta family
  Subcellular Location
Cytoplasm Nucleus
  External Link
NCBI Gene ID
30000
Uniprot ID
O14787
Ensembl ID
ENSG00000105576
HGNC ID
HGNC:19998
  Function in Host
Probably functions in nuclear protein import as nucleartransport receptor. Serves as receptor for nuclear localization signals (NLS) in cargo substrates. Is thought to mediate docking of theimportin/substrate complex to the nuclear pore complex (NPC) throughbinding to nucleoporin and the complex is subsequently translocatedthrough the pore by an energy requiring, Ran-dependent mechanism. Atthe nucleoplasmic side of the NPC, Ran binds to the importin, theimportin/substrate complex dissociates and importin is re-exported fromthe nucleus to the cytoplasm where GTP hydrolysis releases Ran. Thedirectionality of nuclear import is thought to be conferred by anasymmetric distribution of the GTP- and GDP-bound forms of Ran betweenthe cytoplasm and nucleus.
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  Related KEGG Pathway
Nucleocytoplasmic transport hsa03013            Pathway Map 
  3D Structure

Function of This Protein During Virus Infection
Virus NameSARS-COV-2 Protein Function Anti-viral [1]
Infected TissueLung Infection Time7-9 Days
Infected CellCalu-3 Cells (Human epithelial cell line) Cellosaurus IDCVCL_0609 
Method DescriptionTo detect the role of host protein TNPO2 in viral infection, TNPO2 protein knockdown Calu-3 Cells were infected with SARS-COV-2 for 7 - 9 Days , and the effects on infection was detected through CRISPR-based genome-wide gene-knockout screen.
ResultsIt is reported that knockout of TNPO2 increases SARS-CoV-2 RNA levels compared with control group.

 Full List of Virus RNA Interacting with This Protien
            RNA Region: Not Specified Virus Region (hCoV-19/England/02/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [2]
              Strains Name
hCoV-19/England/02/2020
              Strains Family
Beta (B.1.351)
              RNA Binding Region
Not Specified Virus Region
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Infection Cells Calu-3 cells (Human lung cancer cell)  (CVCL_0609 )
              Cell Originated Tissue Lung
              Infection Time 24 h
              Interaction Score P-adjust = 0.072
              Method Description UV protein-RNA crosslinking; RNA interactome capture (cRIC); RNA antisense purification coupled with mass spectrometry (RAP-MS)

Differential Gene Expression During SARS-COV-2 Infection
GEO Accession: GSE152641
Sample Type: Blood
Samples Details: Healthy Control: 24; COVID-19: 62
Platform: GPL24676 Illumina NovaSeq 6000
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GEO Accession: GSE162835
Sample Type: Nasopharyngeal Swabs
Samples Details: COVID-19 (Mild Symptoms): 37; COVID-19 (Moderate Symptoms): 10; COVID-19 (Severe Symptoms): 3
Platform: GPL24676 Illumina NovaSeq 6000
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GEO Accession: GSE175779
Sample Type: Human Bronchial Epithelial Cells
Samples Details: Healthy Control: 4 (0, 24, 48, 72 and 96 h); COVID-19: 4 (24, 48, 72 and 96 h)
Platform: GPL18573 Illumina NextSeq 500
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Protein Sequence Information
MDWQPDEQGLQQVLQLLKDSQSPNTATQRIVQDKLKQLNQFPDFNNYLIFVLTRLKSEDEPTRSLSGLILKNNVKAHYQSFPPPVADFIKQECLNNIGDASSLIRATIGILITTIASKGELQMWPELLPQLCNLLNSEDYNTCEGAFGALQKICEDSSELLDSDALNRPLNIMIPKFLQFFKHCSPKIRSHAIACVNQFIMDRAQALMDNIDTFIEHLFALAVDDDPEVRKNVCRALVMLLEVRIDRLIPHMHSIIQYMLQRTQDHDENVALEACEFWLTLAEQPICKEVLASHLVQLIPILVNGMKYSEIDIILLKGDVEEDEAVPDSEQDIKPRFHKSRTVTLPHEAERPDGSEDAEDDDDDDALSDWNLRKCSAAALDVLANVFREELLPHLLPLLKGLLFHPEWVVKESGILVLGAIAEGCMQGMVPYLPELIPHLIQCLSDKKALVRSIACWTLSRYAHWVVSQPPDMHLKPLMTELLKRILDGNKRVQEAACSAFATLEEEACTELVPYLSYILDTLVFAFGKYQHKNLLILYDAIGTLADSVGHHLNQPEYIQKLMPPLIQKWNELKDEDKDLFPLLECLSSVATALQSGFLPYCEPVYQRCVTLVQKTLAQAMMYTQHPEQYEAPDKDFMIVALDLLSGLAEGLGGHVEQLVARSNIMTLLFQCMQDSMPEVRQSSFALLGDLTKACFIHVKPCIAEFMPILGTNLNPEFISVCNNATWAIGEICMQMGAEMQPYVQMVLNNLVEIINRPNTPKTLLENTGRLTSPSAIPAITIGRLGYVCPQEVAPMLQQFIRPWCTSLRNIRDNEEKDSAFRGICMMIGVNPGGVVQDFIFFCDAVASWVSPKDDLRDMFYKILHGFKDQVGEDNWQQFSEQFPPLLKERLAAFYGV
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References
1 Genome-wide CRISPR screens identify GATA6 as a proviral host factor for SARS-CoV-2 via modulation of ACE2. Nat Commun. 2022 Apr 25;13(1):2237.
2 Global analysis of protein-RNA interactions in SARS-CoV-2-infected cells reveals key regulators of infection. Mol Cell. 2021 Jul 1;81(13):2851-2867.e7.