General Information of Drug Therapeutic Target (DTT) (ID: TTRF4Q2)

DTT Name Interferon-lambda 3 (IFNL3)
Synonyms ZCYTO22; Interleukin28C; Interleukin28B; Interleukin-28C; Interleukin-28B; Interferon lambda3; Interferon lambda-3; IL28C; IL28B; IL-28C; IL-28B; IFNlambda3; IFN-lambda-3; Cytokine Zcyto22
Gene Name IFNL3
DTT Type
Literature-reported target
[1]
BioChemical Class
Cytokine: interferon
UniProt ID
IFNL3_HUMAN
TTD ID
T55242
3D Structure
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2D Sequence (FASTA)
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3D Structure (PDB)
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Sequence
MTGDCMPVLVLMAAVLTVTGAVPVARLRGALPDARGCHIAQFKSLSPQELQAFKRAKDAL
EESLLLKDCKCRSRLFPRTWDLRQLQVRERPVALEAELALTLKVLEATADTDPALGDVLD
QPLHTLHHILSQLRACIQPQPTAGPRTRGRLHHWLHRLQEAPKKESPGCLEASVTFNLFR
LLTRDLNCVASGDLCV
Function
Plays a critical role in the antiviral host defense, predominantly in the epithelial tissues. Acts as a ligand for the heterodimeric class II cytokine receptor composed of IL10RB and IFNLR1, and receptor engagement leads to the activation of the JAK/STAT signaling pathway resulting in the expression of IFN-stimulated genes (ISG), which mediate the antiviral state. Has a restricted receptor distribution and therefore restricted targets: is primarily active in epithelial cells and this cell type-selective action is because of the epithelial cell-specific expression of its receptor IFNLR1. Seems not to be essential for early virus-activated host defense in vaginal infection, but plays an important role in Toll-like receptor (TLR)-induced antiviral defense. Plays a significant role in the antiviral immune defense in the intestinal epithelium. Exerts an immunomodulatory effect by up-regulating MHC class I antigen expression. Cytokine with antiviral, antitumour and immunomodulatory activities.
KEGG Pathway
Cytokine-cytokine receptor interaction (hsa04060 )
JAK-STAT signaling pathway (hsa04630 )
Reactome Pathway
Interleukin-20 family signaling (R-HSA-8854691 )

References

1 The favorable IFNL3 genotype escapes mRNA decay mediated by AU-rich elements and hepatitis C virus-induced microRNAs. Nat Immunol. 2014 Jan;15(1):72-9.