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.
The antibody was conjugated to BD Horizon BUV615 which is part of the BD Horizon Brilliant™ Ultraviolet family of dyes. This dye is a tandem fluorochrome with an Ex Max near 350 nm and an Em Max near 615 nm. BD Horizon Brilliant BUV615 can be excited by the ultraviolet laser (355 nm) and detected with a 610/20 filter and a 595 nm LP. Due to the excitation of the acceptor dye by the blue/yellow-green laser line, there may be significant spillover into channels detecting PE-CF594 like emissions (eg, 610/20-nm filter).