Cytokine with immunomodulatory activity. May play a role in antiviral immunity. Up-regulates MHC class I antigen expression. Ligand for the heterodimeric class II cytokine receptor composed of IL10RB and IL28RA. The ligand/receptor complex seems to signal through the Jak-STAT pathway. Belongs to the IL-28/IL-29 family. Note: This description may include information from UniProtKB.
Protein type: Cytokine; Cell cycle regulation; Secreted, signal peptide; Secreted
Biological Process: positive regulation of immune response; positive regulation of transcription, DNA-dependent; positive regulation of JAK-STAT cascade; JAK-STAT cascade; negative regulation of T cell differentiation; negative regulation of cell proliferation; positive regulation of interferon-gamma production; negative regulation of interleukin-13 production; positive regulation of tyrosine phosphorylation of STAT protein; negative regulation of T-helper 2 type immune response; innate immune response; negative regulation of interleukin-5 production; positive regulation of MHC class I biosynthetic process; negative regulation of memory T cell differentiation; negative regulation of transcription, DNA-dependent; defense response to virus