Host Protein General Information (ID: PT0281)
  Protein Name
18 kDa phosphoprotein (p18)
  Gene Name
CFL1
  Host Species
Homo sapiens
  Uniprot Entry Name
COF1_HUMAN
  Protein Families
Actin-binding proteins ADF family
  Subcellular Location
Plasma membrane; nucleus; cytoskeleton
  External Link
NCBI Gene ID
1072
Uniprot ID
P23528
Ensembl ID
ENSG00000172757
HGNC ID
HGNC:1874
  Function in Host
Binds to F-actin and exhibits pH-sensitive F-actindepolymerizing activity. In conjunction with thesubcortical maternal complex (SCMC), plays an essential role forzygotes to progress beyond the first embryonic cell divisions viaregulation of actin dynamics. Required for thecentralization of the mitotic spindle and symmetric division of zygotes. Plays a role in the regulation of cell morphology andcytoskeletal organization in epithelial cells. Required for the up-regulation of atypical chemokine receptor ACKR2from endosomal compartment to cell membrane, increasing its efficiencyin chemokine uptake and degradation. Required forneural tube morphogenesis and neural crest cell migration. [1-4]
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  Related KEGG Pathway
Fc gamma R-mediated phagocytosis hsa04666            Pathway Map 
Human immunodeficiency virus 1 infection hsa05170            Pathway Map 
Pertussis hsa05133            Pathway Map 
Regulation of actin cytoskeleton hsa04810            Pathway Map 
Axon guidance hsa04360            Pathway Map 
  3D Structure

Function of This Protein During Virus Infection
Virus NameSARS-COV-2 Protein Function Anti-viral [5]
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 CFL1 in viral infection, CFL1 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 CFL1 increases SARS-CoV-2 RNA levels 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-19/USA/WA1/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [6]
              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)  (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 [7]
              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 = 4.24439E+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
S156 [8]
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S23 [8]
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S24 [8]
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S3 [8]
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S41 [8]
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T25 [8]
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Protein Sequence Information
MASGVAVSDGVIKVFNDMKVRKSSTPEEVKKRKKAVLFCLSEDKKNIILEEGKEILVGDVGQTVDDPYATFVKMLPDKDCRYALYDATYETKESKKEDLVFIFWAPESAPLKSKMIYASSKDAIKKKLTGIKHELQANCYEEVKDRCTLAEKLGGSAVISLEGKPL
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References
1 B-arrestin-dependent activation of the cofilin pathway is required for the scavenging activity of the atypical chemokine receptor D6. Sci Signal. 2013 Apr 30;6(273):ra30.1-11, S1-3.
2 Identification and characterization of a set of conserved and new regulators of cytoskeletal organization, cell morphology and migration. BMC Biol. 2011 Aug 11;9:54.
3 Chronophin, a novel HAD-type serine protein phosphatase, regulates cofilin-dependent actin dynamics. Nat Cell Biol. 2005 Jan;7(1):21-9.
4 Determining the differences in actin binding by human ADF and cofilin. J Mol Biol. 2002 Jan 25;315(4):911-25.
5 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.
6 Discovery and functional interrogation of SARS-CoV-2 RNA-host protein interactions. Cell. 2021 Apr 29;184(9):2394-2411.e16.
7 The SARS-CoV-2 RNA-protein interactome in infected human cells. Nat Microbiol. 2021 Mar;6(3):339-353.
8 Multilevel proteomics reveals host perturbations by SARS-CoV-2 and SARS-CoV. Nature. 2021 Jun;594(7862):246-252.