Epstein Barr Virus Induced Protein 3 (EBI3) Antibody – Rabbit Polyclonal

This gene was identified by its induced expression in B lymphocytes in response Epstein-Barr virus infection. It encodes a secreted glycoprotein belonging to the hematopoietin receptor family, and heterodimerizes with a 28 kDa protein to form interleukin 27 (IL-27). IL-27 regulates T cell and inflammatory responses, in part by activating the Jak/STAT pathway of CD4+ T cells. [provided by RefSeq, Sep 2008]

IL27-beta: Cytokine with pro- and anti-inflammatory properties, that can regulate T-helper cell development, suppress T-cell proliferation, stimulate cytotoxic T-cell activity, induce isotype switching in B-cells, and that has diverse effects on innate immune cells. Among its target cells are CD4 T-helper cells which can differentiate in type 1 effector cells (TH1), type 2 effector cells (TH2) and IL17 producing helper T-cells (TH17). It drives rapid clonal expansion of naive but not memory CD4 T-cells. It also strongly synergizes with IL-12 to trigger interferon- gamma/IFN-gamma production of naive CD4 T-cells, binds to the cytokine receptor WSX-1/TCCR. Another important role of IL27 is its antitumor activity as well as its antiangiogenic activity with activation of production of antiangiogenic chemokines. Belongs to the type I cytokine receptor family. Type 3 subfamily.

Protein type: Secreted; Secreted, signal peptide

Chromosomal Location of Human Ortholog: 19p13.3

Cellular Component: endoplasmic reticulum lumen; extracellular region; extracellular space; plasma membrane

Molecular Function: cytokine activity; hematopoietin/interferon-class (D200-domain) cytokine receptor activity; interleukin-27 receptor binding; protein binding

Biological Process: humoral immune response; positive regulation of alpha-beta T cell proliferation; positive regulation of interferon-gamma biosynthetic process; T cell proliferation; T-helper 1 type immune response