A protein complex that is composed of an interleukin-12 alpha subunit (p35, product of the IL12A gene) and an EBI3 subunit and is secreted into the extracellular space.
Source:
GOC:add,
PMID:19161429,
PMID:19161428
Comment
Note that this heterodimeric cytokine utilizes the same IL-12p35 subunit as its alpha chain as IL-12 uses and the same EBI3 subunit (product of EBI3, Epstein-Barr virus induced gene 3) as its beta chain as IL-27 uses. IL-35 requires both subunits -- there is no separate IL35 gene.