Host Protein General Information (ID: PT0503)
  Protein Name
Heat shock 70 kDa protein 4 (HSPA4)
  Gene Name
HSPA4
  Host Species
Homo sapiens
  Uniprot Entry Name
HSP74_HUMAN
  Protein Families
Heat shock protein 7. family
  Subcellular Location
Cytoplasm
  External Link
NCBI Gene ID
3308
Uniprot ID
P34932
Ensembl ID
ENSG00000170606
HGNC ID
HGNC:5237
  Related KEGG Pathway
Antigen processing and presentation hsa04612            Pathway Map 
Tight junction hsa04530            Pathway Map 
Lipid and atherosclerosis hsa05417            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 HSPA4 in viral infection, HSPA4 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 HSPA4 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 [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)  (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/France/IDF-220-95/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [3]
              Strains Name
hCoV-19/France/IDF-220-95/2020
              RNA Binding Region
Not Specified Virus Region
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Direct interaction
              Infection Cells HEK293 Cells (Human embryonic kidney cell) HEK293 Cells (Human embryonic kidney cell)  (CVCL_0045 )
              Cell Originated Tissue Kidney
              Infection Time 48 h
              Interaction Score SAINT score ≥ 0.79
              Method Description comprehensive identification of RNA-binding proteins by massspectrometry (ChIRP-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 Phosphorylation after Virus Infection
S647 [4]
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S76 [4]
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T649 [4]
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Potential Drug(s) that Targets This Protein
Drug Name DrunkBank ID Pubchem ID TTD ID REF
Doxycycline DB00254  54671203  D0S0LZ  [5]
Testosterone DB00624  6013  D06XMU  [5]

Protein Sequence Information
MSVVGIDLGFQSCYVAVARAGGIETIANEYSDRCTPACISFGPKNRSIGAAAKSQVISNAKNTVQGFKRFHGRAFSDPFVEAEKSNLAYDIVQLPTGLTGIKVTYMEEERNFTTEQVTAMLLSKLKETAESVLKKPVVDCVVSVPCFYTDAERRSVMDATQIAGLNCLRLMNETTAVALAYGIYKQDLPALEEKPRNVVFVDMGHSAYQVSVCAFNRGKLKVLATAFDTTLGGRKFDEVLVNHFCEEFGKKYKLDIKSKIRALLRLSQECEKLKKLMSANASDLPLSIECFMNDVDVSGTMNRGKFLEMCNDLLARVEPPLRSVLEQTKLKKEDIYAVEIVGGATRIPAVKEKISKFFGKELSTTLNADEAVTRGCALQCAILSPAFKVREFSITDVVPYPISLRWNSPAEEGSSDCEVFSKNHAAPFSKVLTFYRKEPFTLEAYYSSPQDLPYPDPAIAQFSVQKVTPQSDGSSSKVKVKVRVNVHGIFSVSSASLVEVHKSEENEEPMETDQNAKEEEKMQVDQEEPHVEEQQQQTPAENKAESEEMETSQAGSKDKKMDQPPQAKKAKVKTSTVDLPIENQLLWQIDREMLNLYIENEGKMIMQDKLEKERNDAKNAVEEYVYEMRDKLSGEYEKFVSEDDRNSFTLKLEDTENWLYEDGEDQPKQVYVDKLAELKNLGQPIKIRFQESEERPKLFEELGKQIQQYMKIISSFKNKEDQYDHLDAADMTKVEKSTNEAMEWMNNKLNLQNKQSLTMDPVVKSKEIEAKIKELTSTCSPIISKPKPKVEPPKEEQKNAEQNGPVDGQGDNPGPQAAEQGTDTAVPSDSDKKLPEMDID
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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 Discovery and functional interrogation of SARS-CoV-2 RNA-host protein interactions. Cell. 2021 Apr 29;184(9):2394-2411.e16.
3 Characterization and functional interrogation of the SARS-CoV-2 RNA interactome. Cell Rep. 2022 Apr 26;39(4):110744.
4 Multilevel proteomics reveals host perturbations by SARS-CoV-2 and SARS-CoV. Nature. 2021 Jun;594(7862):246-252.
5 Investigating the human protein-host protein interactome of SARS-CoV-2 infection in the small intestine. Gastroenterol Hepatol Bed Bench. Fall 2020;13(4):374-387.