Epstein-Barr virus induced gene 3, also known as interleukin-27 subunit beta or IL-27B, is a protein which in humans is encoded by the EBI3gene.[5][6]
Function
This gene was identified by the induction of its expression in B lymphocytes by Epstein–Barr virus infection. The protein encoded by this gene is a secreted glycoprotein, which is a member of the hematopoietin receptor family related to the p40 subunit of interleukin 12 (IL-12). It plays a role in regulating cell-mediated immune responses.[7]
EBI3 is a subunit in 2 distinct heterodimericcytokines: interleukin-27 (IL27) and IL35. IL27 is composed of p28 (IL27) and EBI3. IL27 can trigger signaling in T cells, B cells, and myeloid cells.[8] IL35, an inhibitory cytokine involved in regulatory T-cell function, is composed of EBI3 and the p35 subunit of IL12.[7][9]
^ abCollison LW, Workman CJ, Kuo TT, Boyd K, Wang Y, Vignali KM, Cross R, Sehy D, Blumberg RS, Vignali DA (November 2007). "The inhibitory cytokine IL-35 contributes to regulatory T-cell function". Nature. 450 (7169): 566–9. Bibcode:2007Natur.450..566C. doi:10.1038/nature06306. PMID18033300. S2CID4425281.
^Batten M, Li J, Yi S, Kljavin NM, Danilenko DM, Lucas S, Lee J, de Sauvage FJ, Ghilardi N (September 2006). "Interleukin 27 limits autoimmune encephalomyelitis by suppressing the development of interleukin 17-producing T cells". Nat. Immunol. 7 (9): 929–36. doi:10.1038/ni1375. PMID16906167. S2CID32503719.
Larousserie F, Pflanz S, Coulomb-L'Herminé A, et al. (2004). "Expression of IL-27 in human Th1-associated granulomatous diseases". J. Pathol. 202 (2): 164–71. doi:10.1002/path.1508. PMID14743498. S2CID25887054.
Gehlert T, Devergne O, Niedobitek G (2004). "Epstein-Barr virus (EBV) infection and expression of the interleukin-12 family member EBV-induced gene 3 (EBI3) in chronic inflammatory bowel disease". J. Med. Virol. 73 (3): 432–8. doi:10.1002/jmv.20109. PMID15170639. S2CID40275209.
