Details of Host Protein

 Host Protein General Information (ID: PT0710)
  Protein Name
Paraspeckle component 1 (PSPC1)
  Gene Name
PSPC1
  Host Species
Homo sapiens
  Uniprot Entry Name
PSPC1_HUMAN
  Protein Families
PSPC family
  Subcellular Location
Nucleus; nucleolus
  External Link
NCBI Gene ID
55269
Uniprot ID
Q8WXF1
Ensembl ID
ENSG00000121390
HGNC ID
HGNC:20320
  Function in Host
Regulates, cooperatively with NONO and SFPQ, androgenreceptor-mediated gene transcription activity in Sertoli cell line. Binds to poly (A), poly (G) and poly (U) RNA homopolymers. Regulates the circadian clock by repressing the transcriptionalactivator activity of the CLOCK-ARNTL/BMAL1 heterodimer. Together with NONO, required for the formation of nuclearparaspeckles. Plays a role in the regulation of DNA virus-mediatedinnate immune response by assembling into the HDP-RNP complex, acomplex that serves as a platform for IRF3 phosphorylation andsubsequent innate immune response activation through the cGAS-STINGpathway. [1-2]
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  3D Structure
PDB ID: 3SDE 
FASTA   Download
  2D PNG Download  
PDB File Download

Function of This Protein During Virus Infection
Virus NameSARS-COV-2 Protein Function Pro-viral [3]
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 PSPC1 in viral infection, PSPC1 protein knockout 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 PSPC1 leads to the decreased 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: 3'-UTR (hCoV-19/IPBCAMS-YL01/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [4]
              Strains Name
hCoV-19/IPBCAMS-YL01/2020
              Strains Family
Beta (B.1.351)
              RNA Binding Region
3'-UTR
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Potiential to be direct binder
              Interaction Binding Type Single stranded RNA binding
              Infection Cells Huh7.5.1 cells (Hepatocyte derived cellular carcinoma cell)  (CVCL_E049 )
              Cell Originated Tissue Liver
              Infection Time 30 h
              Interaction Score MIST = 0.68551467
              Method Description comprehensive identification of RNA-binding proteins by massspectrometry (ChIRP-MS)
           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 [5]
              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) 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 [5]
              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)

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
  PNG Download  
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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
  PNG Download  
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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
  PNG Download  
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Protein Phosphorylation after Virus Infection
S473 [6]
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S477 [6]
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Protein Sequence Information
MMLRGNLKQVRIEKNPARLRALESAVGESEPAAAAAMALALAGEPAPPAPAPPEDHPDEEMGFTIDIKSFLKPGEKTYTQRCRLFVGNLPTDITEEDFKRLFERYGEPSEVFINRDRGFGFIRLESRTLAEIAKAELDGTILKSRPLRIRFATHGAALTVKNLSPVVSNELLEQAFSQFGPVEKAVVVVDDRGRATGKGFVEFAAKPPARKALERCGDGAFLLTTTPRPVIVEPMEQFDDEDGLPEKLMQKTQQYHKEREQPPRFAQPGTFEFEYASRWKALDEMEKQQREQVDRNIREAKEKLEAEMEAARHEHQLMLMRQDLMRRQEELRRLEELRNQELQKRKQIQLRHEEEHRRREEEMIRHREQEELRRQQEGFKPNYMENREQEMRMGDMGPRGAINMGDAFSPAPAGNQGPPPMMGMNMNNRATIPGPPMGPGPAMGPEGAANMGTPMMPDNGAVHNDRFPQGPPSQMGSPMGSRTGSETPQAPMSGVGPVSGGPGGFGRGSQGGNFEGPNKRRRY
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References
1 HEXIM1 and NEAT1 Long Non-coding RNA Form a Multi-subunit Complex that Regulates DNA-Mediated Innate Immune Response. Mol Cell. 2017 Aug 3;67(3):387-399.e5.
2 Structure of the heterodimer of human NONO and paraspeckle protein component 1 and analysis of its role in subnuclear body formation. Proc Natl Acad Sci USA. 2012 Mar 27;109(13):4846-50.
3 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.
4 Comparison of viral RNA-host protein interactomes across pathogenic RNA viruses informs rapid antiviral drug discovery for SARS-CoV-2. Cell Res. 2022 Jan;32(1):9-23.
5 The SARS-CoV-2 RNA interactome. Mol Cell. 2021 Jul 1;81(13):2838-2850.e6.
6 Multilevel proteomics reveals host perturbations by SARS-CoV-2 and SARS-CoV. Nature. 2021 Jun;594(7862):246-252.