Some antigens only occur in certain ethnic ... In essence, the anti-HLA antibodies can bind to regions of bead-coupled HLA molecules that are normally not accessible if they are masked by ß2 ...
Additionally, detection of both anti-MHC class I and class II antibodies was problematic. The predominant problem underlying class distinction arises from the distribution of HLA antigens.
This image shows the structure of an antibody (Y-shaped) and how it binds to different types of antigens (color-coded shapes at the top). The antibody's binding sites, located at the ends of its arms, ...
The structure of an antibody can be divided into several key regions: Variable Regions (Fab): Located at the tips of the Y-shaped molecule, the variable regions contain the antigen-binding sites.