The Human IL-13R alpha 2 ELISA kit is an in vitro enzyme-linked immunosorbent assay for the quantitative measurement of human IL-13R alpha 2 in serum, plasma (Heparin is recommended as an anticoagulant; EDTA and Citrate are not recommended for use in this assay. Human IL-13R alpha 2 concentration is low in normal heparin-treated plasma and may not be detectable in this assay), and cell culture supernatants.