Provided below are ELISA kits targeting interleukin 6 signal transducer, a human protein encoded by IL6ST. This protein is 918 amino acids long, with a mass of 103.5 kDa, and is a member of the Type I cytokine receptor family, Type 2 subfamily. 3 isoforms have been identified. This is reported to be a membrane and secreted protein. Glycosylation sites have been reported. Other alias names for this protein include: interleukin-6 receptor subunit beta, CD130 antigen, IL-6 receptor subunit beta, IL-6R subunit beta, gp130 oncostatin M receptor, interleukin receptor beta chain, and membrane glycoprotein 130.