An antibody (Ab), or immunoglobulin (Ig), is a large protein belonging to the immunoglobulin superfamily which is used by the immune system to identify and neutralize antigens such as those that exist on …

Antibodies are protective proteins produced by your immune system. They attach to antigens (foreign substances) and remove them from your body.

May 10, 2026 · Antibody, a protective protein produced by the immune system in response to the presence of a foreign substance, called an antigen. Antibodies recognize and latch onto antigens in …

Sep 17, 2022 · Learn about the five types of antibodies or immunoglobulins in the human body. Learn the location of each type and its function in immunity.

Aug 3, 2023 · Antibodies are protein molecules naturally produced or synthesized by the B-lymphocytes. They are also known as Immunoglobulins.

Discover the roles of antibodies and antigens in your body's defense. We explain the difference between an antibody and antigen and how they antibodies detect and flag harmful antigens to protect your …

2 days ago · An antibody is a protein component of the immune system that circulates in the blood, recognizes foreign substances like bacteria and viruses, and neutralizes them.

Sep 25, 2025 · Antibodies are proteins that help your immune system respond to infections and illnesses by attaching to pathogens and neutralizing them.

Antibody Basics Guides Learn the essentials of antibody structure, production, immune function and research applications Antibodies, also called immunoglobulins (Ig), are Y-shaped proteins produced …

What is an Antibody? An antibody, also known as an immunoglobulin, is a Y-shaped protein produced by B lymphocytes (B cells) of the immune system in response to antigens —foreign substances such …