GPL, or Interleukin 31 receptor A, is a human gene encoded by IL31RA. It may also be known as: Interleukin-31 receptor subunit alpha; IL-31 receptor subunit alpha; IL-31R subunit alpha; IL-31R-alpha; IL-31RA; Cytokine receptor-like 3; GLM-R; hGLM-R; Gp130-like monocyte receptor; Gp130-like receptor; ZcytoR17; CRL; CRL3; GLMR; PLCA2; PRO21384. The encoded protein has an amino acid length of 732 and a mass of 83.0 kDa. Other isoforms may exist. GPL is a member of the Type I cytokine receptor family, Type 2 subfamily. Homologs of this gene exist in other organisms, including: Mouse, Rat, Chicken.