Analysis of endoproteolytic cleavage and intracellular transport of human immunodeficiency virus type 1 envelope glycoproteins using mutant CD4 molecules bearing the transmembrane endoplasmic reticulum retention signal.

Abstract excerpt

We investigated endoproteolytic processing of the human immunodeficiency virus (HIV) envelope glycoprotein precursor, gp160, as well as envelope-mediated membrane fusion in the presence of CD4 molecules that were either partially or fully retained in the endoplasmic reticulum (ER). Pulse-chase analyses revealed that gp160 formed complexes with CD4 molecules, and gp160 in the complex was endoproteolytically...

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