Details of Host Protein

 Host Protein General Information (ID: PT0414)
  Protein Name
Eukaryotic translation initiation factor 3 subunit L (EIF3L)
  Gene Name
EIF3L
  Host Species
Homo sapiens
  Uniprot Entry Name
EIF3L_HUMAN
  Protein Families
EIF-3 subunit L family
  Subcellular Location
Cytoplasm
  External Link
NCBI Gene ID
51386
Uniprot ID
Q9Y262
Ensembl ID
ENSG00000100129
HGNC ID
HGNC:18138
  Function in Host
Component of the eukaryotic translation initiation factor 3 (eIF-3) complex, which is required for several steps in the initiationof protein synthesis. The eIF-3 complex associates with the 40S ribosomeand facilitates the recruitment of eIF-1, eIF-1A, eIF-2GTPmethionyl-tRNAi and eIF-5 to form the 43S pre-initiation complex (43S PIC). TheeIF-3 complex stimulates mRNA recruitment to the 43S PIC and scanningof the mRNA for AUG recognition. The eIF-3 complex is also required fordisassembly and recycling of post-termination ribosomal complexes andsubsequently prevents premature joining of the 40S and 60S ribosomalsubunits prior to initiation. The eIF-3 complexspecifically targets and initiates translation of a subset of mRNAsinvolved in cell proliferation, including cell cycling, differentiationand apoptosis, and uses different modes of RNA stem-loop binding toexert either translational activation or repression. [1-3]
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  3D Structure
PDB ID: 3J8B 
FASTA   Download
  2D PNG Download  
PDB File Download

Function of This Protein During Virus Infection
Virus NameSARS-COV-2 Protein Function Anti-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 EIF3L in viral infection, EIF3L 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 EIF3L increases 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: ORF10 (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
ORF10
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Infection Cells Calu-3 cells (Human Lung Cancer Cell)  (CVCL_0609 )
              Cell Originated Tissue Liver
              Interaction Score P-value < 0.05
              Method Description RNA pull-down assays; liquid chromatography with tandem mass spectrometry (LC-MS/MS); Wilcoxon test; MS2 affinity purification coupled with liquid chromatography-mass spectrometry (MAMS)
           RNA Region: cap- and poly(A) (hCoV-19/England/02/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [6]
              Strains Name
hCoV-19/England/02/2020
              Strains Family
Beta (B.1.351)
              RNA Binding Region
cap- and poly(A)
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Infection Cells Calu-3 cells (Human lung cancer cell) Calu-3 cells (Human lung cancer cell)  (CVCL_0609 )
              Cell Originated Tissue Lung
              Infection Time 24 h
              Interaction Score P-adjust = 0.059
              Method Description UV protein-RNA crosslinking; RNA interactome capture (cRIC); RNA antisense purification coupled with mass spectrometry (RAP-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
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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 Sequence Information
MSYPADDYESEAAYDPYAYPSDYDMHTGDPKQDLAYERQYEQQTYQVIPEVIKNFIQYFHKTVSDLIDQKVYELQASRVSSDVIDQKVYEIQDIYENSWTKLTERFFKNTPWPEAEAIAPQVGNDAVFLILYKELYYRHIYAKVSGGPSLEQRFESYYNYCNLFNYILNADGPAPLELPNQWLWDIIDEFIYQFQSFSQYRCKTAKKSEEEIDFLRSNPKIWNVHSVLNVLHSLVDKSNINRQLEVYTSGGDPESVAGEYGRHSLYKMLGYFSLVGLLRLHSLLGDYYQAIKVLENIELNKKSMYSRVPECQVTTYYYVGFAYLMMRRYQDAIRVFANILLYIQRTKSMFQRTTYKYEMINKQNEQMHALLAIALTMYPMRIDESIHLQLREKYGDKMLRMQKGDPQVYEELFSYSCPKFLSPVVPNYDNVHPNYHKEPFLQQLKVFSDEVQQQAQLSTIRSFLKLYTTMPVAKLAGFLDLTEQEFRIQLLVFKHKMKNLVWTSGISALDGEFQSASEVDFYIDKDMIHIADTKVARRYGDFFIRQIHKFEELNRTLKKMGQRP
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References
1 eIF3d is an mRNA cap-binding protein that is required for specialized translation initiation. Nature. 2016 Aug 4;536(7614):96-9.
2 eIF3 targets cell-proliferation messenger RNAs for translational activation or repression. Nature. 2015 Jun 4;522(7554):111-4.
3 Reconstitution reveals the functional core of mammalian eIF3. EMBO J. 2007 Jul 25;26(14):3373-83.
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 Mapping the host protein interactome of non-coding regions in SARS-CoV-2 genome. bioRxiv. 2021 Jun; DOI:10.1101/2021.06.19.449092.
6 Global analysis of protein-RNA interactions in SARS-CoV-2-infected cells reveals key regulators of infection. Mol Cell. 2021 Jul 1;81(13):2851-2867.e7.