Antibody Structure Diagram - Immunology Visual Reference #3857152 (License: Personal Use)

This minimalist black-and-white line drawing represents the classic Y-shaped structure of an immunoglobulin G (IgG) antibody, with two identical antigen-binding fragments (Fab arms) and a constant fragment (Fc stem). The parallel lines indicate heavy and light polypeptide chains forming disulfide-linked domains. Designed for clarity in scientific communication, it avoids chemical detail while preserving topological accuracy.

Used in biology textbooks, immunology courseware, healthcare websites, and biotech product pages to illustrate adaptive immune responses, monoclonal antibody therapeutics, or diagnostic assay principles. Matches user intent for visual learning, research reference, or科普 content creation.