IgG1
IgG1
IgG1 (pronounced as "eye gee gee one") is one of the four subclasses of the Immunoglobulin G (IgG) class of antibodies.
Etymology
The term "IgG1" is derived from "Immunoglobulin G subclass 1". Immunoglobulins are a class of proteins that function as antibodies in the immune system. The "G" in IgG stands for "gamma", referring to the type of heavy chain found in this class of antibodies. The "1" denotes the subclass.
Function
IgG1 antibodies are the most abundant type of IgG antibodies in human serum. They play a crucial role in the immune response, particularly in fighting bacterial and viral infections. IgG1 antibodies are capable of crossing the placenta, providing passive immunity to the fetus.
Related Terms
- Immunoglobulin: A protein produced by plasma cells and lymphocytes and characteristic of these types of cells. Immunoglobulins play an essential role in the body's immune system. They attach to foreign substances, such as bacteria, viruses, and assist in destroying them.
- Antibody: A blood protein produced in response to and counteracting a specific antigen. Antibodies combine chemically with substances that the body recognizes as alien, such as bacteria, viruses, and foreign substances in the blood.
- Immune Response: The reaction of the cells and fluids of the body to the presence of a substance which is not recognized as a constituent of the body itself.
- Placenta: An organ that develops in your uterus during pregnancy. This structure provides oxygen and nutrients to your growing baby and removes waste products from your baby's blood.
External links
- Medical encyclopedia article on IgG1
- Wikipedia's article - IgG1
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