Immunogen sequence: YRYVTKPPAP PNSLNVQRVL TFQPLRFIQE HVLIPVFDLS GPSSLAQPVQ
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Predicted homology: Dog: 100%; Guinea Pig: 93%; Horse: 93%; Human: 100%; Mouse: 100%; Pig: 100%; Rabbit: 86%; Rat: 100%
A novel cytokine, designated IL-TIF for IL-10 related T cell-derived inducible factor and IL-22, was recently identified. The receptor for IL-22 (IL-22R, also termed CRF2-9 and IL-TIF-R1 chain) is a new member of the class II cytokine receptor family. IL-22R forms a complex with IL-10 receptor beta chain and mediates IL-22 signaling. IL-22 and its receptor activate JAK-STAT signaling pathway. IL22R is expressed in normal liver and kidney and their cell lines HepG2 and TK-10. A soluble form of IL-22 receptor, also termed IL-22 binding protein (IL-22BP) and IL-22 receptor-alpha 2 (IL-22RA2), was identified very recently. IL-22BP prevents binding of IL-22 to the functional cell surface IL-22R complex and neutralizes IL-22 activity. LPS induces IL-22 expression, which indicates the role of IL-22 in inflammatory response.
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Protein Aliases: CRF2-9; Cytokine receptor class-II member 9; Cytokine receptor family 2 member 9; il-22 receptor; IL-22 receptor subunit alpha-1; IL-22R-alpha-1; IL-22RA1; ILN; Interleukin; interleukin 22 receptor, alpha 1; Interleukin-22 receptor subunit alpha-1; ZcytoR11
Gene Aliases: CRF2-9; IL22R; IL22R1; IL22RA1
UniProt ID: (Human) Q8N6P7
Entrez Gene ID: (Human) 58985
Molecular Function: transmembrane signal receptor