Medical term:

Coreceptor

co·re·cep·tor

(kō'rē-sep'tōr),

A cell surface receptor, which, when bound to its respective ligand, modulates antigen receptor binding or affects cellular activation after antigen-receptor interactions.

Farlex Partner Medical Dictionary © Farlex 2012

co·re·cep·tor

(kō'rĕ-sep'tŏr)

A cell surface protein that increases the sensitivity of the antigen receptor to antigen by binding to other ligands.

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

coreceptor

(ko?re-sep'tor) [ com- + receptor]

A structure on a cell membrane that enhances the action of the cell receptor.

CCR5 coreceptor

A cell surface receptor found on macrophages that facilitates entry of HIV-1 into these cells. Chemokines released by T cells attempt to compete with HIV by blocking the receptor to prevent infection.

CXCR4 coreceptor

A cell surface receptor found on T cells that facilitates entry of HIV-1into these cells.

Synonym: fusin

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