Biology:EBI3

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Short description: Protein-coding gene in the species Homo sapiens


A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example

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 EBI3 gene.[1][2]

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.[3]

EBI3 is a subunit in 2 distinct heterodimeric cytokines: 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.[4] IL35, an inhibitory cytokine involved in regulatory T-cell function, is composed of EBI3 and the p35 subunit of IL12.[3][5]

References

  1. "Entrez Gene: EBI3 Epstein-Barr virus induced gene 3". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=10148. 
  2. "A novel interleukin-12 p40-related protein induced by latent Epstein-Barr virus infection in B lymphocytes". J. Virol. 70 (2): 1143–53. February 1996. doi:10.1128/JVI.70.2.1143-1153.1996. PMID 8551575. 
  3. 3.0 3.1 "The inhibitory cytokine IL-35 contributes to regulatory T-cell function". Nature 450 (7169): 566–9. November 2007. doi:10.1038/nature06306. PMID 18033300. Bibcode2007Natur.450..566C. 
  4. "Interleukin 27 limits autoimmune encephalomyelitis by suppressing the development of interleukin 17-producing T cells". Nat. Immunol. 7 (9): 929–36. September 2006. doi:10.1038/ni1375. PMID 16906167. 
  5. "IL-35 is a novel cytokine with therapeutic effects against collagen-induced arthritis through the expansion of regulatory T cells and suppression of Th17 cells". Eur. J. Immunol. 37 (11): 3021–9. November 2007. doi:10.1002/eji.200737810. PMID 17874423. 

Further reading

External links