CD3 Mouse anti-Rat, FITC, Clone: G4.18, BD

The G4.18 antibody reacts with the T-cell receptor-associated CD3 cell-surface antigen found on thymocytes, peripheral T lymphocytes, and dendritic epidermal T cells. It has been reported that CD3 expression is down-regulated within 24 hours in concanavalin A-stimulated rat T cells, and soluble mAb inhibits the allogeneic mixed-lymphocyte proliferative response and cell-mediated cytotoxicity to allogeneic target cells. In vivo treatment with G4.18 mAb prevents cardiac and skin allograft rejection, resulting in donor-specific tolerance. Pre-incubation of splenocytes with the alternate anti-rat CD3 monoclonal antibody, 1F4 (Cat. No. 556970), blocks staining with mAb G4.18.

This antibody is routinely tested by flow cyometric analysis. Other applications were tested at BD Biosciences Pharmingen during antibody development only or reported in the literature.