Details of Host Protein

 Host Protein General Information (ID: PT0769)
  Protein Name
Polypyrimidine tract-binding protein 3 (PTBP3)
  Gene Name
PTBP3
  Host Species
Homo sapiens
  Uniprot Entry Name
PTBP3_HUMAN
  External Link
NCBI Gene ID
9991
Uniprot ID
O95758
Ensembl ID
ENSG00000119314
HGNC ID
HGNC:10253
  Function in Host
RNA-binding protein that mediates pre-mRNA alternativesplicing regulation. Plays a role in the regulation of cellproliferation, differentiation and migration. Positive regulator ofEPO-dependent erythropoiesis. Participates in cell differentiationregulation by repressing tissue-specific exons. Promotes FAS exon 6skipping. Binds RNA, preferentially to both poly (G) and poly (U).
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  3D Structure
AlphaFold ID: O95758 
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  mmCIF File Download   
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Function of This Protein During Virus Infection
Virus NameSARS-COV-2 Protein Function Pro-viral [1]
Infected TissueLung Infection Time48 h
Infected CellCalu-3 cells (Human lung cancer cell line) Cellosaurus IDCVCL_0609 
Method DescriptionTo detect the role of host protein PTBP3 in viral infection, PTBP3 protein knockout Calu-3 cells were infected with SARS-COV-2 for 48 h , and the effects on infection was detected through qRT-PCR.
ResultsIt is reported that Knockdown of PTBP3 leads to the reduced SARS-CoV-2 RNA levels compared with control group.

Host Protein - Virus RNA Network
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 Full List of Virus RNA Interacting with This Protien
            RNA Region: 5'-UTR (hCoV-19/South Korea/KCDC03/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [1]
              Strains Name
hCoV-19/South Korea/KCDC03/2020
              Strains Family
Alpha (B.1.1.7)
              RNA Binding Region
5'-UTR
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Directly bind to SARS-CoV-23 RNA's 5' UTR region
              Infection Cells Vero cells (epithelial kidney cell)  (CVCL_0059 )
              Cell Originated Tissue kidney
              Infection Time 24 h
              Interaction Score P-adjust < 0.05
              Method Description Modified RNA antisense purification coupled with mass spectrometry (RAP-MS); label-free quantification (LFQ); liquid chromatography with tandem mass spectrometry (LC-MS/MS)
           RNA Region: Not Specified Virus Region (hCov-OC43/VR-759 Quebec/2019 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [1]
              Strains Name
hCov-OC43/VR-759 Quebec/2019
              Strains Family
Beta
              RNA Binding Region
Not Specified Virus Region
              Virus Name
Human coronavirus OC43 (HCov-OC43)
              Infection Cells HCT-8 cells (Human ileocaecal adenocarcinoma cell) HCT-8 cells (Human ileocaecal adenocarcinoma cell)  (CVCL_2478 )
              Cell Originated Tissue Ileocecum
              Infection Time 12h; 24; 36h; 48h
              Interaction Score p_value < 0.05; FDR < 10%
              Method Description Modified RNA antisense purification coupled with mass spectrometry (RAP-MS); label-free quantification (LFQ); liquid chromatography with tandem mass spectrometry (LC-MS/MS)
           RNA Region: Not Specified Virus Region (hCoV-19/USA/WA1/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [2]
              Strains Name
hCoV-19/USA/WA1/2020
              Strains Family
Alpha (B.1.1.7)
              RNA Binding Region
Not Specified Virus Region
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Infection Cells Huh7.5 cells (Hepatocyte derived cellular carcinoma cell) Huh7.5 cells (Hepatocyte derived cellular carcinoma cell)  (CVCL_7927 )
              Cell Originated Tissue Liver
              Infection Time 48 h
              Interaction Score FDR ≤ 0.05
              Method Description comprehensive identification of RNA-binding proteins by massspectrometry (ChIRP-MS)
           RNA Region: Not Specified Virus Region (hCoV-19/Not Specified Virus Strain )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [3]
              Strains Name
hCoV-19/Not Specified Virus Strain
              RNA Binding Region
Not Specified Virus Region
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Infection Cells Huh7 cells (liver carcinoma cell) Huh7 cells (liver carcinoma cell)  (CVCL_0336 )
              Cell Originated Tissue Liver
              Infection Time 24h
              Interaction Score log2FC = 2.91503E+14
              Method Description RNA antisense purification and quantitative mass spectrometry (RAP-MS); Tandem mass tag (TMT) labelling; liquid chromatography tandem mass spectrometry (LC-MS/MS); Westernblot

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 Phosphorylation after Virus Infection
S56 [4]
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S56 [5]
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S58 [5]
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Protein Sequence Information
MDGVVTDLITVGLKRGSDELLSSGIINGPFTMNSSTPSTANGNDSKKFKRDRPPCSPSRVLHLRKIPCDVTEAEIISLGLPFGKVTNLLMLKGKSQAFLEMASEEAAVTMVNYYTPITPHLRSQPVYIQYSNHRELKTDNLPNQARAQAALQAVSAVQSGSLALSGGPSNEGTVLPGQSPVLRIIIENLFYPVTLEVLHQIFSKFGTVLKIITFTKNNQFQALLQYADPVNAHYAKMALDGQNIYNACCTLRIDFSKLTSLNVKYNNDKSRDFTRLDLPTGDGQPSLEPPMAAAFGAPGIISSPYAGAAGFAPAIGFPQATGLSVPAVPGALGPLTITSSAVTGRMAIPGASGIPGNSVLLVTNLNPDLITPHGLFILFGVYGDVHRVKIMFNKKENALVQMADANQAQLAMNHLSGQRLYGKVLRATLSKHQAVQLPREGQEDQGLTKDFSNSPLHRFKKPGSKNFQNIFPPSATLHLSNIPPSVTVDDLKNLFIEAGCSVKAFKFFQKDRKMALIQLGSVEEAIQALIELHNHDLGENHHLRVSFSKSTI
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References
1 The SARS-CoV-2 RNA interactome. Mol Cell. 2021 Jul 1;81(13):2838-2850.e6.
2 Discovery and functional interrogation of SARS-CoV-2 RNA-host protein interactions. Cell. 2021 Apr 29;184(9):2394-2411.e16.
3 The SARS-CoV-2 RNA-protein interactome in infected human cells. Nat Microbiol. 2021 Mar;6(3):339-353.
4 The Global Phosphorylation Landscape of SARS-CoV-2 Infection. Cell. 2020 Aug 6;182(3):685-712.e19.
5 Multilevel proteomics reveals host perturbations by SARS-CoV-2 and SARS-CoV. Nature. 2021 Jun;594(7862):246-252.