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Cynomolgus IL2RA Protein

IL2RA

Catalog Number P90265-CCCH
Organism Species Cynomolgus
Host Human Cells
Synonyms IL2RA
Molecular Weight The recombinant cynomolgus IL2RA comprises 199 amino acids and has a calculated molecular mass of 22.4 KDa.The apparent molecular mass of the protein is approximately 38-42 KDa respectively in SDS-PAGE.
predicted N Glu 22
SDS-PAGE
Purity > 95 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the cynomolgus IL2RA (H6WS54) (Met1-Arg213) was expressed with six amino acids (LEVLFQ) at the C-terminus.
Bio-activity
Research Area Immunology |Adaptive Immunity |T Cell |T Cell CD Antigen |CD Antigen (Regulatory T Cells)
Formulation Lyophilized from sterile PBS, pH 7.4.
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background CD25 (alpha-chain of IL-2 receptor, or IL2RA), is a type I transmembrane glycoprotein with a signal peptide, an extracellular region, a transmembrane region, and a cytoplasmic domain. IL2RA is expressed on activated T cells and regulatory T cells, and is capable of binding IL2 with low affinity by itself. However, a ligand-induced high affinity heterotrimeric receptor complex is produced when IL2RA is associated non-covelently with the IL2 receptor beta and gamma chain, and subsequently initiates the intacellular signal pathways such as MAPK or JAK/STAT. On dendritic cells (DC), CD25 has been previously regarded as an activation marker, while both murine and human DC can express CD25, they do not express the beta-chain of the IL-2 receptor, which is indispensable for the execution of IL-2 signaling. The IL2RA (CD25) gene is a substantial component of the high-affinity receptor molecule highly expressed by activated T lymphocytes. Recently, a strong evidence was obtained for the involvement of IL-2RA in conferring susceptibility to type 1 diabetes (T1D). Cancer growth and development is associated with the stimulation of the innate immune system, including enhanced interleukin 2 receptor (IL-2R) expression in immune cells and its shedding into the circulation in a soluble form of sIL-2Ralpha. In most haematological malignancies, including different types of leukaemias and lymphomas, sIL-2Ralpha has been found to be released directly from the surface of neoplastic cells thus reflecting the tumour bulk, turnover and activity. Several studies have proved that not only lymphoid cancer cells, but also some non-lymphoid cancer cells, express IL-2R on their surface. They include malignant melanoma and carcinomas of the kidney, head and neck, oesophagus and lung. Thus, sIL-2Ralpha is elevated in most proliferative disturbances of the hematopoietic system and in many solid tumors.
Reference
  • Driesen J, et al. (2008) CD25 as an immune regulatory molecule expressed on myeloid dendritic cells. Immunobiology. 213(9-10): 849-58.
  • Olejniczak K, et al. (2008) Biological properties of interleukin 2 and its role in pathogenesis of selected diseases--a review. Med Sci Monit. 14(10): RA179-89.
  • Chistiakov DA, et al. (2008) The crucial role of IL-2/IL-2RA-mediated immune regulation in the pathogenesis of type 1 diabetes, an evidence coming from genetic and animal model studies. Immunol Lett. 118(1): 1-5.
  • Bien E, et al. (2008) Serum soluble interleukin 2 receptor alpha in human cancer of adults and children: a review. Biomarkers. 13(1): 1-26.