The AH9R7 monoclonal antibody specifically binds to the Interleukin-9 Receptor (IL-9R, IL-9Rα) also known as CD129. CD129 is a Type I transmembrane glycoprotein and a Type I Cytokine Receptor (Hemopoietin) Superfamily member. The high-affinity, signaling IL-9 Receptor complex is comprised of CD129 (IL-9 Receptor alpha chain subunit) and CD132 (common γ chain/γc). CD129 is expressed by hematopoietic progenitors, thymocytes, T cells, B cells, macrophages, eosinophils, mast cells, epithelia cells, muscle cells and neurons. IL-9 signals through the IL-9R complex (ie, through JAK, STAT and related signal pathways) to regulate the growth, proliferation, differentiation and survival of myeloid and erythroid progenitor cells, thymocytes, T cells, B cells and some tumor cells.
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.