The HLY9.1.25 monoclonal antibody specifically binds to CD229 which is also known as, Signaling lymphocyte activation molecule family member 3 (SLAMF3), Lymphocyte antigen 9 (Ly9), or T-lymphocyte surface antigen Ly-9. CD229 is a 100-120 kDa, single-pass type I membrane glycoprotein that belongs to the SLAM family within the Ig superfamily. CD229 is expressed on thymocytes, T cells, B cells, dendritic cells, and NK cells. Through homophilic binding, CD229 may play a role in adhesive interactions between T and B cells. During T cell activation, CD229 localizes to the immunological synapse.
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.