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Journal of Virology logoLink to Journal of Virology
. 1989 Oct;63(10):4464–4468. doi: 10.1128/jvi.63.10.4464-4468.1989

Effects of mutations in hyperconserved regions of the extracellular glycoprotein of human immunodeficiency virus type 1 on receptor binding.

A Cordonnier 1, Y Rivière 1, L Montagnier 1, M Emerman 1
PMCID: PMC251071  PMID: 2550679

Abstract

Sequence comparison of the human immunodeficiency virus type 1 and type 2 env genes revealed the presence of six linear regions in the extracellular glycoprotein that are highly conserved. To investigate the functional significance of these regions, we made short deletions in each and assayed the ability of the mutated proteins to bind CD4 antigen. Small deletions in four of the highly conserved regions drastically reduced receptor binding. Some deletions interfered with the maturation of the envelope glycoprotein, but maturation did not necessarily correlate with the ability to bind CD4 antigen.

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Selected References

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