The Polyclonal Antibody to Complement Component 4d (C4d) from AAA Biotech, LLC is a Rabbit Polyclonal antibody to C4A, C4B, complement component 4B (Chido blood group), copy 2, and C4B_2. This antibody recognizes Homo Sapiens, and Human antigen. The Polyclonal Antibody to Complement Component 4d (C4d) has been shown to work in the following applications: Western Blot.