The CD20 (E7B7T) XP ® Rabbit mAb (Alexa Fluor ® 555 Conjugate) Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to MS4A1. This antibody recognizes Homo Sapiens, Human, and Non-Human Primate antigen. The CD20 (E7B7T) XP ® Rabbit mAb (Alexa Fluor ® 555 Conjugate) Antibody has been shown to work in the following applications: Immunohistochemistry, and Immunohistochemistry - fixed.