The CD genes belong to a large family of genes called the cluster of differentiation. Many CD genes provide instructions for making proteins that are found on the surface of white blood cells (leukocytes) at various stages of their development. These proteins help the white blood cells interact with the body's tissues and attack bacteria, viruses, and other invaders.
Other members of the CD gene family work outside of the immune system. For example, some CD genes play a role in cell signaling and the development of the nervous system.
Most of the genes in this family are designated by the letters CD and a number corresponding to the specific gene within the family, such as CD132. Many of the genes in the CD gene family also have other names that may be more commonly used. For example, CD132 is also called IL2RG.
The HUGO Gene Nomenclature Committee (HGNC) provides a list of genes in the CD family.
Genetics Home Reference provides additional information about these members of the CD gene family: CD40LG, CDH1, ENG, ERBB2, FGFR1, FGFR2, FGFR3, FGFR4, IL2RG, JAG1, L1CAM, and PRNP.
The Handbook provides basic information about genetics in clear language.
The resources on this site should not be used as a substitute for
professional medical care or advice. Users seeking information about
a personal genetic disease, syndrome, or condition should consult with a qualified
See How can I find a genetics professional in my area? in the Handbook.