Increase in soluble CD4 binding to and CD4-induced dissociation of gp120 from virions correlates with infectivity of human immunodeficiency virus type 1.

Abstract excerpt

Mutations in the human immunodeficiency virus type 1 (HIV-1) envelope glycoproteins gp120 and gp41, previously shown to confer an enhanced replicative capacity and broadened host range to the ELI1 strain of HIV-1, were analyzed for their biochemical effects on envelope structure and function. The tendency of purified virions to release their extracellular gp120 component, either spontaneously or after interacting...

Topics

• Adaptation, Biological
• Amino Acid Sequence
• CD4 Antigens
• CD4-Positive T-Lymphocytes
• Cell Line
• HIV Envelope Protein gp120
• HIV-1
• Humans
• Immunoglobulin G
• Molecular Sequence Data
• Mutation