Details of Host Protein

 Host Protein General Information (ID: PT0864)
  Protein Name
Protein Smaug homolog 1 (SAMD4A)
  Gene Name
SAMD4A
  Host Species
Homo sapiens
  Uniprot Entry Name
SMAG1_HUMAN
  Protein Families
SMAUG family
  Subcellular Location
Cytoplasm Cell projection; dendrite Cell junction; synapse; synaptosome
  External Link
NCBI Gene ID
23034
Uniprot ID
Q9UPU9
Ensembl ID
ENSG00000020577
HGNC ID
HGNC:23023
  Function in Host
Acts as a translational repressor of SRE-containingmessengers. [1]
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  3D Structure
AlphaFold ID: Q9UPU9 
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  mmCIF File Download   
  PDB File Download   

Function of This Protein During Virus Infection
Virus NameSARS-COV-2 Protein Function Pro-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 SAMD4A in viral infection, SAMD4A 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 SAMD4A leads to the decreased 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: ORF1ab (hCoV-19/Wuhan-Hu-1/2019 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [3]
              Strains Name
hCoV-19/Wuhan-Hu-1/2019
              Strains Family
Beta (B.1.351)
              RNA Binding Region
ORF1ab
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Potential binding protein
              Method Description ATtRACT Database; Position Weight Matrices (PWMs); TFBSTools R package
           RNA Region: ORF3a (hCoV-19/Wuhan-Hu-1/2019 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [3]
              Strains Name
hCoV-19/Wuhan-Hu-1/2019
              Strains Family
Beta (B.1.351)
              RNA Binding Region
ORF3a
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Potential binding protein
              Method Description ATtRACT Database; Position Weight Matrices (PWMs); TFBSTools R package
           RNA Region: M region (hCoV-19/Wuhan-Hu-1/2019 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [3]
              Strains Name
hCoV-19/Wuhan-Hu-1/2019
              Strains Family
Beta (B.1.351)
              RNA Binding Region
M region
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Potential binding protein
              Method Description ATtRACT Database; Position Weight Matrices (PWMs); TFBSTools R package
           RNA Region: N region (hCoV-19/Wuhan-Hu-1/2019 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [3]
              Strains Name
hCoV-19/Wuhan-Hu-1/2019
              Strains Family
Beta (B.1.351)
              RNA Binding Region
N region
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Potential binding protein
              Method Description ATtRACT Database; Position Weight Matrices (PWMs); TFBSTools R package
           RNA Region: S region (hCoV-19/Wuhan-Hu-1/2019 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [3]
              Strains Name
hCoV-19/Wuhan-Hu-1/2019
              Strains Family
Beta (B.1.351)
              RNA Binding Region
S region
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Potential binding protein
              Method Description ATtRACT Database; Position Weight Matrices (PWMs); TFBSTools R package

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
  PNG Download  
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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 Phosphorylation after Virus Infection
S168 [4]
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S420 [5]
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S580 [4]
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Y418 [5]
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Protein Sequence Information
MMFRDQVGVLAGWFKGWNECEQTVALLSLLKRVSQTQARFLQLCLEHSLADCAELHVLEREANSPGIINQWQQESKDKVISLLLTHLPLLKPGNLDAKVEYMKLLPKILAHSIEHNQHIEESRQLLSYALIHPATSLEDRSALAMWLNHLEDRTSTSFGGQNRGRSDSVDYGQTHYYHQRQNSDDKLNGWQNSRDSGICINASNWQDKSMGCENGHVPLYSSSSVPTTINTIGTSTSTILSGQAHHSPLKRSVSLTPPMNVPNQPLGHGWMSHEDLRARGPQCLPSDHAPLSPQSSVASSGSGGSEHLEDQTTARNTFQEEGSGMKDVPAWLKSLRLHKYAALFSQMTYEEMMALTECQLEAQNVTKGARHKIVISIQKLKERQNLLKSLERDIIEGGSLRIPLQELHQMILTPIKAYSSPSTTPEARRREPQAPRQPSLMGPESQSPDCKDGAAATGATATPSAGASGGLQPHQLSSCDGELAVAPLPEGDLPGQFTRVMGKVCTQLLVSRPDEENISSYLQLIDKCLIHEAFTETQKKRLLSWKQQVQKLFRSFPRKTLLDISGYRQQRNRGFGQSNSLPTAGSVGGGMGRRNPRQYQIPSRNVPSARLGLLGTSGFVSSNQRNTTATPTIMKQGRQNLWFANPGGSNSMPSRTHSSVQRTRSLPVHTSPQNMLMFQQPEFQLPVTEPDINNRLESLCLSMTEHALGDGVDRTSTI
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References
1 Mammalian Smaug is a translational repressor that forms cytoplasmic foci similar to stress granules. J Biol Chem. 2005 Dec 30;280(52):43131-40.
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 Genome-wide bioinformatic analyses predict key host and viral factors in SARS-CoV-2 pathogenesis. Commun Biol. 2021 May 17;4(1):590.
4 The Global Phosphorylation Landscape of SARS-CoV-2 Infection. Cell. 2020 Aug 6;182(3):685-712.e19.
5 Multilevel proteomics reveals host perturbations by SARS-CoV-2 and SARS-CoV. Nature. 2021 Jun;594(7862):246-252.