October 9, 2015
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Definition of CD4

CD4: A large glycoprotein molecule found on the surface of T lymphocytes that serves as the receptor for HIV. The CD4 gene is on chromosome 12 in region 12pter-p12. CD4 is also called T4. See also: Absolute CD4 count.

Source: MedTerms™ Medical Dictionary
Last Editorial Review: 8/28/2013

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