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.
This antibody is conjugated to BD Horizon™ BV605 which is part of the BD Horizon Brilliant™ Violet family of dyes. With an Ex Max of 407-nm and Em Max of 602-nm, BD Horizon BV605 can be excited by a violet laser and detected with a standard 610/20-nm filter set. BD Horizon BV605 is a tandem fluorochrome of BD Horizon BV421 and an acceptor dye with an Em max at 605-nm. Due to the excitation of the acceptor dye by the green (532 nm) and yellow-green (561 nm) lasers, there will be significant spillover into the PE and BD Horizon PE-CF594 detectors off the green or yellow-green lasers. BD Horizon BV605 conjugates are very bright, often exhibiting brightness equivalent to PE conjugates and can be used as a third color off of the violet laser.