Apoptotic signals are often triggered by cell surface death receptors through protein-protein interactions mediated by conserved domains such as the death effector domain (1). A novel death effector domain (DED)-containing protein,DEDD2, has been recently identified and its over-expression in transfected cells induces moderate apoptosis and results in substantial sensitization to apoptosis induced by Fas, TRAIL, and FADD (2). More recently, work has shown that DEDD2 can bind caspase-8 and -10 in addition to FLIP but not FADD (2,3). Like the related protein DEDD, DEDD2 translocates from the cytosol to the nucleus upon induction of apoptosis, and it has been suggested that DEDD2 may target caspase-8 to the nucleus and that DEDD2 thus plays a critical role in death receptor-induced apoptosis (3). At least two alternatively spliced transcript variants encoding distinct isoforms have been found for DEDD2.
Applications
Suitable for use in Western Blot. Other applications not tested.
Recommended Dilution
Western Blot: 05-1ug/ml Optimal dilutions to be determined by the researcher.
Positive Control
RAW264.7 cell lysate
Storage and Stability
May be stored at 4°C for short-term only. For long-term storage and to avoid repeated freezing and thawing, add sterile glycerol (40-50%), aliquot and store at -20°C. Aliquots are stable for at least 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Immunogen
Synthetic peptide DEDD2 11aa near the amino-terminus of human DEDD2 (GenBank accession no. NP_579874).
Form
Supplied as a liquid in PBS, pH 7.2, 0.02% sodium azide.|
Purity
Purified by immunoaffinity chromatography.|
Specificity
Recognizes human DEDD2. Species Crossreactivity: mouse and rat
References
1. Tibbetts MD, Zheng L, and Lenardo MJ. Nat. Immunol. 2003; 4:404-9. 2. Roth W, Stenner-Liewen F, Pawlowski K, et al., J. Biol. Chem. 2002; 277:7501-8. 3. Alcivar A, Hu S, Tang J, et al., Oncogene 2003; 22:291-7. (WD0206)