Gp80, or Interleukin 6 receptor, is a human gene encoded by IL6R. It may also be known as: Interleukin-6 receptor subunit alpha; IL-6 receptor subunit alpha; IL-6R subunit alpha; IL-6R-alpha; IL-6RA; IL-6R 1; Membrane glycoprotein 80; CD antigen CD126; CD126; IL-6R-1; IL6Q; IL6RA; IL6RQ. The encoded protein has an amino acid length of 468 and a mass of 51.5 kDa. Other isoforms may exist. Gp80 is a member of the Type I cytokine receptor family, Type 3 subfamily. Homologs of this gene exist in other organisms, including: Mouse.