Host Protein General Information (ID: PT0601)
  Protein Name
La-related protein 4B (LARP4B)
  Gene Name
LARP4B
  Host Species
Homo sapiens
  Uniprot Entry Name
LAR4B_HUMAN
  Subcellular Location
Cytoplasm; cytosol
  External Link
NCBI Gene ID
23185
Uniprot ID
Q92615
Ensembl ID
ENSG00000107929
HGNC ID
HGNC:28987
  Function in Host
Stimulates mRNA translation. [1]
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  3D Structure

Function of This Protein During Virus Infection
Virus NameSARS-COV-2 Protein Function Anti-viral [2]
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 LARP4B in viral infection, LARP4B 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 LARP4B increases 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/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)  (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
S398 [4]
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S424 [4]
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S434 [4]
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S487 [4]
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S488 [4]
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S498 [5]
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S498 [4]
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S524 [4]
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S526 [4]
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S532 [4]
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S533 [4]
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S562 [4]
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S599 [4]
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S601 [4]
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S664 [4]
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T518 [4]
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Protein Sequence Information
MTSDQDAKVVAEPQTQRVQEGKDSAHLMNGPISQTTSQTSSIPPLSQVPATKVSELNPNAEVWGAPVLHLEASSAADGVSAAWEEVAGHHADRGPQGSDANGDGDQGHENAALPDPQESDPADMNALALGPSEYDSLPENSETGGNESQPDSQEDPREVLKKTLEFCLSRENLASDMYLISQMDSDQYVPITTVANLDHIKKLSTDVDLIVEVLRSLPLVQVDEKGEKVRPNQNRCIVILREISESTPVEEVEALFKGDNLPKFINCEFAYNDNWFITFETEADAQQAYKYLREEVKTFQGKPIKARIKAKAIAINTFLPKNGFRPLDVSLYAQQRYATSFYFPPMYSPQQQFPLYSLITPQTWSATHSYLDPPLVTPFPNTGFINGFTSPAFKPAASPLTSLRQYPPRSRNPSKSHLRHAIPSAERGPGLLESPSIFNFTADRLINGVRSPQTRQAGQTRTRIQNPSAYAKREAGPGRVEPGSLESSPGLGRGRKNSFGYRKKREEKFTSSQTQSPTPPKPPSPSFELGLSSFPPLPGAAGNLKTEDLFENRLSSLIIGPSKERTLSADASVNTLPVVVSREPSVPASCAVSATYERSPSPAHLPDDPKVAEKQRETHSVDRLPSALTATACKSVQVNGAATELRKPSYAEICQRTSKEPPSSPLQPQKEQKPNTVGCGKEEKKLAEPAERYREPPALKSTPGAPRDQRRPAGGRPSPSAMGKRLSREQSTPPKSPQ
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References
1 A stimulatory role for the La-related protein 4B in translation. RNA. 2010 Aug;16(8):1488-99.
2 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.
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 The Global Phosphorylation Landscape of SARS-CoV-2 Infection. Cell. 2020 Aug 6;182(3):685-712.e19.