Location-Specific, Unequal Contribution of the N Glycans in Simian Immunodeficiency Virus gp120 to Viral Infectivity and Removal of Multiple Glycans without Disturbing Infectivity

Abstract excerpt

One of the striking features of human immunodeficiency virus, simian immunodeficiency virus (SIV), and other lentiviruses is extensive N glycosylation of the envelope protein. To assess the requirement of each N glycan for viral infectivity, we individually silenced all 23 N glycosylation sites in the gp120 subunit of SIVmac239 envelope protein by mutagenizing the canonical Asn-Xaa-Thr/Ser N glycosylation motif...