Polyclonal Antibody to DR4/TRAILR1 (CT)

Background
Apoptosis, or programmed cell death, occurs during normal cellular differentiation and development of multicellular organisms. Apoptosis is induced by certain cytokines including TNF and Fas ligand in the TNF family through their death domain containing receptors, TNFR1 and Fas. A novel death domain containing receptor was recently identified and designated DR4 (for death receptor 4) (1). The ligand for this novel death receptor has been identified and termed TRAIL (2), which is a new member in the TNF family. DR4 is also called TRAIL receptor-1 (TRAIL-R1) (3). DR4 is expressed in most of human tissues including spleen, peripheral blood leukocytes, small intestine and thymus. Like TNFR1, Fas and DR3, DR4 mediates apoptosis and NFkB activation in many tissues and cells.

Antigen
Rabbit anti-DR4 (CT) polyclonal antibody was raised against a peptide corresponding to amino acid 427 to 445 of human DR4 mature protein.

Application Notes
A 57 KDa band should be observed.

Genebank Info (Protein)
NP_042998

Reference
1. Pan G; O'Rourke K; Chinnaiyan AM; O'Rourke K; Gentz R; Ebner R; Ni J; Dixit VM. The receptor for the cytotoxic ligand TRAIL. Science; 1997; 276:111-113.
2. Pitti RM; Marsters SA; Ruppert S; Donahue CJ; Moore A; Ashkenazi A. Induction of apoptosis by Apo-2 ligand, a new member of the tumor necrosis factor cytokine family. J. Biol. Chem. 1996; 271:12687-90.
3. Schneider P, Thome M, Burns K, Bodmer JL, Hofmann K, Kataoka T, Holler N, Tschopp J. TRAIL receptors 1 (DR4) and 2 (DR5) signal FADD-dependent apoptosis and activate NF-ƒÛB. Immunity 1997; 7:831-836.