Purity: > 90% by SDS - PAGE Format: Liquid. In Phosphate Buffered Saline (pH 7.4) containing 10% glycerol.. IL2RA, also known as interleukin-2 receptor subunit alpha isoform 1, is a type 1 transmembrane glycoprotein. This protein is expressed in most B-cell neoplasms, some acute nonlymphocytic leukemias, neuroblastomas, mastocytosis and tumor infiltrating lymphocytes. It functions as the receptor for HTLV-1 and is consequently expressed on neoplastic cells in adult T cell lymphoma/leukemia. Also, it is elevated in proliferative disturbances of the hematopoietic system and in many solid tumors. Recombinant human IL2RA, fused to hIgG-His-tag at C-terminus, was expressed in insect cell and purified by using conventional chromatography techniques.