IGHD
IGHD
IGHD (Immunoglobulin Heavy Diversity) is a gene segment that plays a crucial role in the diversity of antibodies in the immune system. Located on chromosome 14 in humans, the IGHD gene segment is involved in the generation of diverse antibody molecules through a process known as V(D)J recombination.
Structure and Function[edit | edit source]
The IGHD gene segment codes for the diversity (D) region of the heavy chain of antibodies. During B cell development, the IGHD gene segment undergoes recombination with the variable (V) and joining (J) gene segments to generate a diverse repertoire of antibody molecules. This process results in the production of antibodies with unique antigen-binding specificities, enabling the immune system to recognize and neutralize a wide range of pathogens.
Role in Immune Response[edit | edit source]
The diversity introduced by the IGHD gene segment is essential for the adaptive immune response. By generating a diverse array of antibody molecules, the immune system can effectively target and eliminate foreign invaders such as bacteria, viruses, and other pathogens. The IGHD gene segment contributes to the specificity and effectiveness of the immune response by enabling the production of antibodies that can recognize and bind to a wide variety of antigens.
Clinical Significance[edit | edit source]
Mutations or abnormalities in the IGHD gene segment can lead to immunodeficiency disorders or autoimmune diseases. Defects in the recombination process involving the IGHD gene segment may result in impaired antibody production, compromising the body's ability to fight infections. Understanding the role of the IGHD gene segment in antibody diversity is crucial for developing therapies for immunological disorders and improving vaccine design.
See Also[edit | edit source]
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Contributors: Prab R. Tumpati, MD
