The RP-1 monoclonal antibody specifically recognizes the RP-1 Antigen. This cell surface marker is expressed on rat peritoneal and peripheral blood neutrophils. Amongst bone marrow cells, the RP-1 Antigen is expressed on band form and mature neutrophils but is not expressed on promyelocytes, myelocytes, and metamyelocytes. The RP-1 antibody does not bind to either rat monocytes, macrophages, eosinophils or to peritoneal neutrophils from mice, rabbits, guinea pigs, or to human peripheral blood neutrophils. Expression of the RP-1 Antigen on rat peritoneal neutrophils is enhanced by cellular stimulation with Phorbol 12-Myristate 13-Acetate (PMA) or Concanavalin A (ConA). Immunoprecipitation and SDS-PAGE analysis of non-treated and PMA-activated rat neutrophil membranes with the RP-1 antibody revealed two main bands of approximately 85 kDa. The RP-1 antibody is also known as the Mouse Anti-Rat Granulocytes antibody.
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.