title: Finding Fusin/CXCR4, the First "2nd Receptor" for HIV Entry.
authors.affiliation: Molecular Structure Section, Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health , Bethesda, MD , USA.
authors.forename: Edward A
authors.initials: EA
authors.lastname: Berger
keywords: CCR5; CD4; Env glycoprotein; T cell line; cell fusion; coreceptor; macrophage; tropism