skip navigation

Skip Nav

Education Materials

AIDSinfo Glossary Search

A - Z Index

glossary a-z index

CoreceptorAudio (En español)

A protein on the surface of a cell that serves as a second binding site for a virus or other molecule. In order to enter a host cell, HIV must bind to two sites on the cell: the primary CD4 receptor and either the CCR5 or CXCR4 coreceptor.

See Related Term(s):  CCR5, CXCR4, Receptor