Host Protein General Information (ID: PT1038)
  Protein Name
PP-1B (HNRNPUL2)
  Gene Name
PPP1CB
  Host Species
Homo sapiens
  Uniprot Entry Name
PP1B_HUMAN
  Protein Families
PPP phosphatase family
  EC Number
3.1.3.16; 3.1.3.53
  Subcellular Location
Cytoplasm Nucleus; nucleoplasm Nucleus; nucleolus
  External Link
NCBI Gene ID
5500
Uniprot ID
P62140
Ensembl ID
ENSG00000214753
HGNC ID
HGNC:9282
  Function in Host
Protein phosphatase that associates with over 200 regulatoryproteins to form highly specific holoenzymes which dephosphorylatehundreds of biological targets. Protein phosphatase (PP1) is essentialfor cell division, it participates in the regulation of glycogenmetabolism, muscle contractility and protein synthesis. Involved inregulation of ionic conductances and long-term synaptic plasticity. Component of the PTW/PP1 phosphatase complex, which plays a role in thecontrol of chromatin structure and cell cycle progression during thetransition from mitosis into interphase. In balance with CSNK1D andCSNK1E, determines the circadian period length, through the regulationof the speed and rhythmicity of PER1 and PER2 phosphorylation. Maydephosphorylate CSNK1D and CSNK1E. Dephosphorylates the 'Ser-418'residue of FOXP3 in regulatory T-cells (Treg) from patients withrheumatoid arthritis, thereby inactivating FOXP3 and rendering Tregcells functionally defective.
    Click to Show/Hide
  Related KEGG Pathway
Platelet activation hsa04611            Pathway Map 
Herpes simplex virus 1 infection hsa05168            Pathway Map 
mRNA surveillance pathway hsa03015            Pathway Map 
Amphetamine addiction hsa05031            Pathway Map 
Alcoholism hsa05034            Pathway Map 
cGMP-PKG signaling pathway hsa04022            Pathway Map 
cAMP signaling pathway hsa04024            Pathway Map 
Oocyte meiosis hsa04114            Pathway Map 
  3D Structure

Function of This Protein During Virus Infection
Virus NameSARS-COV-2 Protein Function Pro-viral [1]
Infected TissueLung Infection Time24 h
Infected CellA549 Cells (Adenocarcinomic Human alveolar basal epithelial cell) Cellosaurus IDCVCL_H249 
Method DescriptionTo detect the role of host protein PPP1CB in viral infection, PPP1CB protein knockout A549 Cells were infected with SARS-COV-2 for 24 h , and the effects on infection was detected through qRT-PCR.
ResultsIt is reported that knockdown of PPP1CB leads to the reduced viral particles production 50% compared with control group.

Host Protein - Virus RNA Network

 Full List of Virus RNA Interacting with This Protien
            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 [2]
              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)  (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/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 = 7.46165E+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
Picture Not Found

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
Picture Not Found

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
Picture Not Found

Protein Phosphorylation after Virus Infection
T316 [4]
Picture Not Found
T316 [5]
Picture Not Found

Protein Sequence Information
MADGELNVDSLITRLLEVRGCRPGKIVQMTEAEVRGLCIKSREIFLSQPILLELEAPLKICGDIHGQYTDLLRLFEYGGFPPEANYLFLGDYVDRGKQSLETICLLLAYKIKYPENFFLLRGNHECASINRIYGFYDECKRRFNIKLWKTFTDCFNCLPIAAIVDEKIFCCHGGLSPDLQSMEQIRRIMRPTDVPDTGLLCDLLWSDPDKDVQGWGENDRGVSFTFGADVVSKFLNRHDLDLICRAHQVVEDGYEFFAKRQLVTLFSAPNYCGEFDNAGGMMSVDETLMCSFQILKPSEKKAKYQYGGLNSGRPVTPPRTANPPKKR
    Click to Show/Hide

References
1 Characterization and functional interrogation of the SARS-CoV-2 RNA interactome. Cell Rep. 2022 Apr 26;39(4):110744.
2 The SARS-CoV-2 RNA interactome. Mol Cell. 2021 Jul 1;81(13):2838-2850.e6.
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.