IFNL1 can induce phosphorylation of Signal transducer and activator of transcription 1 alpha/beta (STAT1), Signal transducer and activator of transcription 3 (STAT2), Signal transducer and activator of transcription 3 (STAT3), Signal transducer and activator of transcription 4 (STAT4) and Signal transducer and activator of transcription 5 (STAT5) (Dumoutier et al. 2004, Novak et al. 2008, Dickensheets et al. 2013) via stimulation of the Interferon lambda-1 (IFNL1) receptor complex. This complex consists of IFNL1, IFNLR1, which is associated with phosphorylated Tyrosine-protein kinase JAK1 (JAK1), Interleukin-10 receptor beta (IL10RB), which is associated with phosphorylated Non-receptor tyrosine-protein kinase TYK2 (TYK2) and STAT1.This is a black-box event because direct evidence for STAT4 and 5 binding and activation is lacking (Jordan et al. 2007).
Rajkumar, V, Ziesmer, SC, Novak, AJ, Doyle, SE, Grote, DM, Ansell, SM
transmembrane receptor protein tyrosine kinase activity of IFNL1:p-Y343-Y517-IFNLR1:p-JAK1:IL10RB:p-TYK2:STAT1,STAT2, STAT3, STAT4, STAT5 [plasma membrane]
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