Beta-Gamma Interzone
C-Reactive Protein is found in between the beta and gamma zones producing beta/gamma fusion. IgA has the most anodal mobility and migrates in the region between the beta and gamma zones also causing a beta/gamma fusion in patients with cirrhosis, respiratory infection, skin disease, or rheumatiod arthritis (increased IgA).
Read more about this topic: Serum Protein Electrophoresis