The Smad2 (D43B4) XP ® Rabbit mAb (Alexa Fluor ® 488 Conjugate) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to SMAD2. This antibody recognizes Homo Sapiens, Human, Mouse, Rat, and Non-Human Primate antigen. The Smad2 (D43B4) XP ® Rabbit mAb (Alexa Fluor ® 488 Conjugate) Antibody has been shown to work in the following applications: Flow Cytometry.