DcR1, Blocking Peptide (Decoy Receptors for TRAIL, ED2, TRAIL-R3, TRID, LIT), Purified

Apoptosis is induced by certain cytokines including TNF and Fas ligand in the TNF family through their death domain containing receptors. TRAIL/Apo2L is a new member of the TNF family and induces apoptosis of a variety of tumor cell lines. DR4 and DR5 are the recently identified functional receptors for TRAIL (1-3). Two decoy receptors for TRAIL have been identified and designated DcR1/TRID/TRAIL-R3/LIT (2-7) and DcR2/TRAIL-R4/TRUNDD (8-10). DcR1 has extracellular TRAIL-binding domain but lacks intracellular signaling domain. It is a glycophospholipid-anchored cell surface protein. DcR1 transcripts are expressed in many normal human tissues but not in most cancer cell lines (2,3). Overexpression of DcR1 did not induce apoptosis, but attenuated TRAIL-induced apoptosis (2,3). Applications: Suitable for use in ELISA, Western Blotting. Other applications not tested. Positive Control: HeLa 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, aliquot and add glycerol (40-50%). Freeze at -20°C or colder. Aliquots are stable for at least 6 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.