The RM153 monoclonal antibody specifically recognizes a 40-kDa type-II membrane glycoprotein, CD30 ligand (CD30L or CD153), which belongs to the NGF/TNF superfamily. In the presence of cytokines, CD153 stimulates B-cell proliferation, antigen-specific antibody production, and polyclonal immunoglobulin secretion. In addition, it costimulates the proliferation of activated T cells. This molecule is expressed on activated T cells, predominantly CD4+, on activated EL4 cells, and on activated Th1 and Th2 cells. The RM153 mAb inhibits the binding of CD153 to CD30.
The antibody was conjugated to BD Horizon Red 718, which has been developed exclusively for BD Biosciences as a better alternative to Alexa Fluor® 700. BD Horizon Red 718 can be excited by the red laser (628 – 640 nm) and, with an Em Max around 718 nm, it can be detected using a 730/45 nm filter. Due to similar excitation and emission properties, we do not recommend using R718 in combination with APC-R700 or Alexa Fluor® 700.