Antibody Structure Diagram - Immune System Protein Visualization #3894636 (License: Personal Use)

This vector illustration depicts a classic IgG-type antibody in a Y-shape, with two identical antigen-binding fragments (Fab) at the tips (pink regions) and a crystallizable fragment (Fc) stem (blue). The light chains are shown in light blue, while the heavy chains form the main blue backbone; the hinge region allows flexibility. Designed for clarity, it emphasizes functional domains without molecular complexity.

Used in educational materials, medical websites, and scientific presentations to explain adaptive immunity, monoclonal antibodies, or diagnostic/therapeutic antibody design. Matches user intent for learning basic immunology or visualizing biologics.