The RR8-1 monoclonal antibody specifically recognizes the Vα 11.1 and Vα 11.2, but not Vα 11.3 T-cell Receptors (TCR) of mice having the b (e.g., C57BL) and d (e.g., DBA/1, DBA/2, NZW) haplotypes of Tcra gene complex. RR8-1 antibody does not react with strains having the a (e.g., A, AKR, BALB/c, CBA, C3H/He) or c (e.g., NZB, SJL, SWR, NOD) Tcra haplotypes. Plate-bound RR8-1 antibody activates Vα 11.1, 11.2[b,d] TCR-bearing T lymphocytes.
The antibody was conjugated to BD Horizon™ BUV496 which is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. This dye is a tandem fluorochrome of BD Horizon BUV395 with an Ex Max of 348-nm and an acceptor dye with an Em Max at 496-nm. BD Horizon BUV496 can be excited by the ultraviolet laser (355 nm) and detected with a 515/30 nm filter with a 450LP. Due to the excitation of the acceptor dye by other laser lines, there may be significant spillover into the channel detecting BD Horizon V500 or BV510 (eg, 525/40-nm filter). However, the spillover can be corrected through compensation as with any other dye combination.