IL28RA, or Interferon, lambda receptor 1, is a human gene encoded by IFNLR1. It may also be known as: Interferon lambda receptor 1; IFN-lambda receptor 1; IFN-lambda-R1; Cytokine receptor class-II member 12; Cytokine receptor family 2 member 12; CRF2-12; Interleukin-28 receptor subunit alpha; IL-28 receptor subunit alpha; IL-28R-alpha; IL-28RA; Likely interleukin or cytokine receptor 2; LICR2; CRF2/12; IFNLR; IL-28R1. The encoded protein has an amino acid length of 520 and a mass of 57.7 kDa. Other isoforms may exist. IL28RA is a member of the Type II cytokine receptor family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Frog.