Host Protein General Information (ID: PT0442)
  Protein Name
Fatty acid-binding protein 5 (FABP5)
  Gene Name
FABP5
  Host Species
Homo sapiens
  Uniprot Entry Name
FABP5_HUMAN
  Protein Families
Calycin superfamily
  Subcellular Location
Cytoplasm Nucleus Cell junction; synapse Cell junction; synapse
  External Link
NCBI Gene ID
2171
Uniprot ID
Q01469
Ensembl ID
ENSG00000164687
HGNC ID
HGNC:3560
  Function in Host
Intracellular carrier for long-chain fatty acids and relatedactive lipids, such as endocannabinoids, that regulate the metabolismand actions of the ligands they bind. In addition to the cytosolictransport, selectively delivers specific fatty acids from the cytosolto the nucleus, wherein they activate nuclear receptors. Delivers retinoic acid to thenuclear receptor peroxisome proliferator-activated receptor delta;which promotes proliferation and survival. May also serve as a synapticcarrier of endocannabinoid at central synapses and thus controlsretrograde endocannabinoid signaling. Modulates inflammation byregulating PTGES induction via NF-kappa-B activation, and prostaglandinE2 (PGE2) biosynthesis during inflammation. May beinvolved in keratinocyte differentiation. [1-3]
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  Related KEGG Pathway
PPAR signaling pathway hsa03320            Pathway Map 
  3D Structure

Function of This Protein During Virus Infection
Virus NameSARS-COV-2 Protein Function Pro-viral [4]
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 FABP5 in viral infection, FABP5 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 FABP5 leads to the decreased SARS-CoV-2 RNA levels compared with control group.

 Full List of Virus RNA Interacting with This Protien
            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 [5]
              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)  (CVCL_0336 )
              Cell Originated Tissue Liver
              Infection Time 24h
              Interaction Score log2FC = 1.65975E+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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Potential Drug(s) that Targets This Protein
Drug Name DrunkBank ID Pubchem ID TTD ID REF
Oleic acid DB04224  445639  D0A4EA  [6]

Protein Sequence Information
MATVQQLEGRWRLVDSKGFDEYMKELGVGIALRKMGAMAKPDCIITCDGKNLTIKTESTLKTTQFSCTLGEKFEETTADGRKTQTVCNFTDGALVQHQEWDGKESTITRKLKDGKLVVECVMNNVTCTRIYEKVE
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References
1 Fatty acid-binding proteins transport N-acylethanolamines to nuclear receptors and are targets of endocannabinoid transport inhibitors. J Biol Chem. 2012 Jan 27;287(5):3415-24.
2 Fatty acid transport protein expression in human brain and potential role in fatty acid transport across human brain microvessel endothelial cells. J Neurochem. 2011 May;117(4):735-46.
3 Purification and characterization of the human epidermal fatty acid-binding protein: localization during epidermal cell differentiation in vivo and in vitro. Biochem J. 1994 Sep 1;302 ( Pt 2)(Pt 2):363-71.
4 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.
5 The SARS-CoV-2 RNA-protein interactome in infected human cells. Nat Microbiol. 2021 Mar;6(3):339-353.
6 Discovery and functional interrogation of SARS-CoV-2 RNA-host protein interactions. Cell. 2021 Apr 29;184(9):2394-2411.e16.