MAP kinase-activating death domain protein is an enzyme that in humans is encoded by the MADD gene. Tumor necrosis factor alpha (TNF-alpha) is a signaling molecule that interacts with one of two receptors on cells targeted for apoptosis. The apoptotic signal is transduced inside these cells by cytoplasmic adaptor proteins. The protein encoded by this gene is a death domain-containing adaptor protein that interacts with the death domain of TNF-alpha receptor 1 to activate mitogen-activated protein kinase (MAPK) and propagate the apoptotic signal. It is membrane-bound and expressed at a higher level in neoplastic cells than in normal cells. Several transcript variants encoding different isoforms have been described for this gene.
Background References
1. Mereis M. et. al. Disorders of flavin adenine dinucleotide metabolism: MADD and related deficiencies. Int J Biochem Cell Biol. 2021 Mar
2. Saini S. et. al. MADD silencing enhances anti-tumor activity of TRAIL in anaplastic thyroid cancer. Endocr Relat Cancer. 2019 Jun
Western blot analysis of DENN on different lysates with Rabbit anti-DENN antibody (HA721022) at 1/1,000 dilution.
Lane 1: HeLa cell lysate (negative) (20 µg/Lane) Lane 2: Mouse brain tissue lysate (40 µg/Lane)
Predicted band size: 183 kDa Observed band size: 250 kDa
Exposure time: 46 seconds; ECL: K1801;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA721022) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
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