HIV/AIDS Glossary


Synonym(s): C-X-C Chemokine Receptor 4, Fusin

A protein on the surface of certain immune system cells, including CD4 T lymphocytes (CD4 cells). CXCR4 can act as a coreceptor (a second receptor binding site) for HIV when the virus enters a host cell.

Related Term(s): Coreceptor, 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