HIV-1 envelope determinants for cell tropism and chemokine receptor use

Abstract excerpt

Isolates of human immunodeficiency virus type-1 (HIV-1) display marked differences in their ability to replicate in macrophages and transformed T-cell lines in vitro, a property that has important implications for disease pathogenesis. The restriction in replication between these two CD4-positive cell types is largely at the level of viral entry and is regulated by the viral envelope (env) gene. The envelope...

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