The 6B7 monoclonal antibody specifically binds to IL-17 Receptor B (IL-17RB), which is a single-pass type I transmembrane protein and a component of the heterodimeric receptor for IL-25 (also known as IL-17E). Several components of the IL-17RB signaling mechanism have been identified, including ACT1, TRAF4, SMURF2, DAZAP2, and STAT5. The cytoplasmic tails of both of the IL-25 Receptor components, IL-17RA and IL-17RB, and ACT1 contain the SEFIR (similar expression to fibroblast growth factor genes and IL-17R) domain that is essential for IL-25R-mediated signaling. Signaling through IL-17RB mediates Th2 immune responses and is responsible for pathogenesis in a murine model for asthma. IL-17RB is found on subsets of iNKT cells, Th2 cells, some myeloid cells in solid organs, and type 2 innate lymphoid cells (ILC2) in lung, peritoneum, mesenteric lymph nodes and bone marrow.
The antibody was conjugated to BD Horizon™ BB700, which is part of the BD Horizon Brilliant™ Blue family of dyes. It is a polymer-based tandem dye developed exclusively by BD Biosciences. With an excitation max of 485 nm and an emission max of 693 nm, BD Horizon BB700 can be excited by the 488 nm laser and detected in a standard PerCP-Cy™5.5 set (eg, 695/40-nm filter). This dye provides a much brighter alternative to PerCP-Cy5.5 with less cross laser excitation off the 405 nm and 355 nm lasers.