Belonging to the seven-transmembrane chemokine receptor family, the major cofactor for primary macrophage-tropic human immunodeficiency virus-1 strains.
Discovery of CKR-5 and another co-receptor, fusin, was reported in June, quickly giving rise to the findings that the American and Belgian groups arrived at through different approaches.
The gene is called CKR-5 and the protein it makes is located on the surface of certain immune cells.