HIV/AIDS Glossary

CD4 Receptor

A protein found primarily on the surface of CD4 T lymphocytes (CD4 cells). To enter a host cell, HIV binds to a CD4 receptor and a coreceptor (either CCR5 or CXCR4) on the host cell.

Related Term(s): CCR5, CD4 T Lymphocyte, CXCR4, Fusion, Life Cycle


(Click to enlarge)
HIV binds to a host CD4 cell via coreceptors.

Search the Glossary

What's this?


AIDSinfo Glossary App

Download Glossary