IL30, or Interleukin 27, is a human gene encoded by IL27. It may also be known as: Interleukin-27 subunit alpha; IL-27 subunit alpha; IL-27-A; IL27-A; Interleukin-30; IL-27A; IL27A; IL27p28. The encoded protein has an amino acid length of 243 and a mass of 27.5 kDa. IL30 is a member of the IL-6 superfamily. Homologs of this gene exist in other organisms, including: Mouse, Rat.