The OX-17 antibody reacts with a non-polymorphic determinant of rat MHC Class II antigen, I-E equivalent. RT1D is found on peripheral B lymphocytes, thymic cortical epithelial and medullary reticular cells, epithelial cells in the adult small intestine, macrophages and dendritic cells in the intestinal lamina propria and Peyer's patches, epithelial and dendritic cells in the kidney, and activated monocytes, but not on thymocyes, erythrocytes, peripheral T cells, or brain. Its expression is upregulated on large-vessel endothelia and a variety of epithelial and glandular cells in the gastrointestinal system of rats treated with IFN-γ.
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.