Antibody Structure Diagram - Immune System Visualization #3857104 (License: Personal Use)

This illustration depicts multiple Y-shaped antibody molecules, each composed of two identical heavy chains (navy) and two light chains (purple), highlighting the antigen-binding Fab regions at the tips and the Fc region at the stem. The color coding emphasizes functional domains-variable regions for antigen specificity and constant regions for effector functions. The transparent background allows seamless integration into educational or scientific web content.

Used in immunology textbooks, biomedical websites, and vaccine/therapeutic antibody explainers; targets students, researchers, and healthcare professionals seeking foundational knowledge of adaptive immunity.