There are a number of ELISA Kits available for the measurement of interleukin 11 receptor, alpha chain 1, another term for the human protein, interleukin 11 receptor subunit alpha. Other synonyms may include: IL-11 receptor subunit alpha, IL-11R subunit alpha, interleukin 11 receptor alpha, and interleukin-11 receptor alpha chain. It is encoded by the IL11RA gene to yield a protein 422 amino acids in length and 45.2 kDa in size. However, there are up to 2 reported isoforms. The protein is categorized into the Type I cytokine receptor family, Type 3 subfamily. Versions of interleukin 11 receptor, alpha chain 1 are present in other organisms, including: Mouse, Rat, Zebrafish, Frog.