AIRE Monoclonal Antibody (5H12), eBioscience™, Invitrogen™

Description

Description: This 5H12 monoclonal antibody reacts with mouse Autoimmune Regulator (AIRE). This 58-kDa transcription factor is highly expressed within the perinuclear region of mature medullary thymic epithelial cells (mTECs). However, expression of AIRE protein in the periphery remains unclear despite the detection of AIRE mRNA in the lymph node, lymphoid stromal cells, monocytes, and dendritic cells. Studies demonstrate that AIRE is involved in thymocyte development, in particular the regulation of tissue-specific antigen expression during negative selection. Other biological functions for AIRE include chemokine expression and antigen presentation. The 5H12 antibody recognizes mouse AIRE isoforms 1 and 2. Applications Reported: This 5H12 antibody has been reported for use in flow cytometric analysis, immunoprecipitation, western blotting, and immunohistochemical staining of frozen tissue sections. Applications Tested: This 5H12 antibody has been tested by immunohistochemistry on frozen 5-week-old mouse thymus and can be used at less than or equal to 5 μg/mL. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest. Purity: Greater than 90%, as determined by SDS-PAGE. Aggregation: Less than 10%, as determined by HPLC. Filtration: 0.2 μm post-manufacturing filtered.

AIRE is a transcriptional regulator protein that binds to DNA as a dimer and tetramer, but not as a monomer, and may be involved in the regulation of gene expression. A nuclear protein, AIRE is a 545 amino acid protein with an HSR domain, two PHD type zinc fingers, and a SAND domain, and may be present in soluble high-molecular-weight complexes. It may form homodimer, homotetramer and also nuclear bodies and interacts with the transcriptional coactivator CBP and CREBBP. Three isoforms of AIRE are reported and one of them is predicted to be a candidate for nuclear-mediated decay (NMD). AIRE is involved in immune regulation and is known to mediate E3 ubiquitin ligase activity. Defects in AIRE are responsible for the rare autosomal-recessive systemic autoimmune disease termed autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED).