The MAST1 (E4K5G) Rabbit mAb Antibody from Cell Signaling Technology is a Rabbit Monoclonal antibody to MAST1. This antibody recognizes Homo Sapiens, Human, Mouse, and Rat antigen. The MAST1 (E4K5G) Rabbit mAb Antibody has been shown to work in the following applications: Western Blot.