Host Protein General Information (ID: PT0603)
  Protein Name
Large subunit GTPase 1 homolog (LSG1)
  Gene Name
LSG1
  Host Species
Homo sapiens
  Uniprot Entry Name
LSG1_HUMAN
  Protein Families
TRAFAC class YlqF/YawG GTPase family
  EC Number
3.6.1.-
  Subcellular Location
Cytoplasm and cytosol; nucleus
  External Link
NCBI Gene ID
55341
Uniprot ID
Q9H089
Ensembl ID
ENSG00000041802
HGNC ID
HGNC:25652
  Function in Host
GTPase required for the XPO1/CRM1-mediated nuclear export ofthe 60S ribosomal subunit. Probably acts by mediating the release ofNMD3 from the 60S ribosomal subunit after export into the cytoplasm. [1]
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  Related KEGG Pathway
Ribosome biogenesis in eukaryotes hsa03008            Pathway Map 
  3D Structure

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 LSG1 in viral infection, LSG1 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 LSG1 leads to the decreased 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: 3'-UTR (hCoV-19/IPBCAMS-YL01/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [3]
              Strains Name
hCoV-19/IPBCAMS-YL01/2020
              Strains Family
Beta (B.1.351)
              RNA Binding Region
3'-UTR
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Potiential to be direct binder
              Infection Cells Huh7.5.1 cells (Hepatocyte derived cellular carcinoma cell)  (CVCL_E049 )
              Cell Originated Tissue Liver
              Infection Time 30 h
              Interaction Score MIST = 0.989389094
              Method Description comprehensive identification of RNA-binding proteins by massspectrometry (ChIRP-MS)
           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 [4]
              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) 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)

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 Sequence Information
MGRRRAPAGGSLGRALMRHQTQRSRSHRHTDSWLHTSELNDGYDWGRLNLQSVTEQSSLDDFLATAELAGTEFVAEKLNIKFVPAEARTGLLSFEESQRIKKLHEENKQFLCIPRRPNWNQNTTPEELKQAEKDNFLEWRRQLVRLEEEQKLILTPFERNLDFWRQLWRVIERSDIVVQIVDARNPLLFRCEDLECYVKEMDANKENVILINKADLLTAEQRSAWAMYFEKEDVKVIFWSALAGAIPLNGDSEEEANRDDRQSNTTKFGHSSFDQAEISHSESEHLPARDSPSLSENPTTDEDDSEYEDCPEEEEDDWQTCSEEDGPKEEDCSQDWKESSTADSEARSRKTPQKRQIHNFSHLVSKQELLELFKELHTGRKVKDGQLTVGLVGYPNVGKSSTINTIMGNKKVSVSATPGHTKHFQTLYVEPGLCLCDCPGLVMPSFVSTKAEMTCSGILPIDQMRDHVPPVSLVCQNIPRHVLEATYGINIITPREDEDPHRPPTSEELLTAYGYMRGFMTAHGQPDQPRSARYILKDYVSGKLLYCHPPPGRDPVTFQHQHQRLLENKMNSDEIKMQLGRNKKAKQIENIVDKTFFHQENVRALTKGVQAVMGYKPGSGVVTASTASSENGAGKPWKKHGNRNKKEKSRRLYKHLDM
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References
1 Human Lsg1 defines a family of essential GTPases that correlates with the evolution of compartmentalization. BMC Biol. 2005 Oct 7;3:21.
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 Comparison of viral RNA-host protein interactomes across pathogenic RNA viruses informs rapid antiviral drug discovery for SARS-CoV-2. Cell Res. 2022 Jan;32(1):9-23.
4 Discovery and functional interrogation of SARS-CoV-2 RNA-host protein interactions. Cell. 2021 Apr 29;184(9):2394-2411.e16.