Anti-CD129 antibodies enable researchers to detect and measure the CD129 antigen in biological samples. This target is a reported synonym of the IL9R gene, which encodes interleukin 9 receptor. This protein is known to function in cytokine-mediated signaling pathways and the regulation of cell proliferation, among other biological roles. The human version of CD129 has a canonical amino acid length of 521 residues and a protein mass of 57.1 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the cell membrane and is secreted of cells and notably expressed in the testis. CD129 is a member of the Type I cytokine receptor protein family. Indicated applications for CD129 antibodies listed below include ELISA, Western Blot, Immunofluorescence, and Immunohistochemistry.