The Alpha-2-Macroglobulin (A2M) Rabbit pAb (APR22303N) Antibody from Leading Biology is a Rabbit Polyclonal antibody to A2M, and alpha-2-MACROGLOBULIN. This antibody recognizes Human, Mouse, and Rat antigen. The Alpha-2-Macroglobulin (A2M) Rabbit pAb (APR22303N) Antibody has been shown to work in the following applications: Immunofluorescence, and Western Blot.