Journal
VIRAL IMMUNOLOGY
Volume 18, Issue 2, Pages 343-353Publisher
MARY ANN LIEBERT, INC
DOI: 10.1089/vim.2005.18.343
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N-linked glycosylation at specific sites on human immunodeficiency virus (HIV)-1 gp120 envelope glycoprotein is believed to act as a glycan shield to protect the viral neutralizing epitopes. Various glycosylation sites have been shown to affect the sensitivity to antibody-mediated neutralization. These include sites on V1V2, C2, base of V3, V5 and C5. Among these, the sites around the base of V3 loop have been most consistently found to associate with neutralization sensitivity in subtype B viruses. In contrast, we found that N-linked glycosylation sites at the junction of V2-C2 and in the middle of C2 were responsible for the neutralization resistance in CRF01_A/E, whereas sites at the base of V3 loop and in V1 and V5 did not affect the neutralization phenotype.
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