CD4

CD4

noun
a protein on the surface of T cells and other cells, functioning as a receptor for the AIDS virus antigen.

Origin:
1980–85; c(luster of) d(ifferentiation) 4

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American Heritage
Medical Dictionary

CD4 n.
A glyocprotein on the surface of helper T cells that serves as a receptor for HIV.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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