Article ; Online: Mannose-rich glycosylation patterns on HIV-1 subtype C gp120 and sensitivity to the lectins, Griffithsin, Cyanovirin-N and Scytovirin.
2010 Volume 402, Issue 1, Page(s) 187–196
Abstract: ... we show that these lectins neutralize subtype C primary virus isolates in addition to Env-pseudotyped ... viruses obtained from plasma and cervical vaginal lavages. Among 15 subtype C pseudoviruses, the median IC ... epitope, which is generally absent on subtype C Env. This data support further research on these lectins ...
Abstract | Griffithsin (GRFT), Cyanovirin-N (CV-N) and Scytovirin (SVN) are lectins that inhibit HIV-1 infection by binding to multiple mannose-rich glycans on the HIV-1 envelope glycoproteins (Env). Here we show that these lectins neutralize subtype C primary virus isolates in addition to Env-pseudotyped viruses obtained from plasma and cervical vaginal lavages. Among 15 subtype C pseudoviruses, the median IC(50) values were 0.4, 1.8 and 20.1nM for GRFT, CV-N and SVN, respectively, similar to what was found for subtype B and A. Analysis of Env sequences suggested that concomitant lack of glycans at positions 234 and 295 resulted in natural resistance to these compounds, which was confirmed by site-directed mutagenesis. Furthermore, the binding sites for these lectins overlapped that of the 2G12 monoclonal antibody epitope, which is generally absent on subtype C Env. This data support further research on these lectins as potential microbicides in the context of HIV-1 subtype C infection. |
---|---|
MeSH term(s) | Adult ; Algal Proteins/pharmacology ; Antiviral Agents/pharmacology ; Bacterial Proteins/pharmacology ; Binding Sites ; Carrier Proteins/pharmacology ; Female ; Glycosylation ; HIV Envelope Protein gp120/metabolism ; Humans ; Inhibitory Concentration 50 ; Lectins/pharmacology ; Mannose/metabolism ; Membrane Proteins ; Microbial Sensitivity Tests ; Neutralization Tests ; Plant Lectins ; Plasma/virology ; Protein Binding ; Vagina/virology ; Young Adult |
Chemical Substances | Algal Proteins ; Antiviral Agents ; Bacterial Proteins ; Carrier Proteins ; HIV Envelope Protein gp120 ; Lectins ; Membrane Proteins ; Plant Lectins ; gp120 protein, Human immunodeficiency virus 1 ; scytovirin protein, S varium ; cyanovirin N (184539-38-6) ; Mannose (PHA4727WTP) ; griffithsin protein, Griffithsia (Z8PX5UX50U) |
Language | English |
Publishing date | 2010-04-13 |
Publishing country | United States |
Document type | Journal Article ; Research Support, N.I.H., Extramural ; Research Support, N.I.H., Intramural ; Research Support, Non-U.S. Gov't |
ZDB-ID | 200425-2 |
ISSN | 1096-0341 ; 0042-6822 |
ISSN (online) | 1096-0341 |
ISSN | 0042-6822 |
DOI | 10.1016/j.virol.2010.03.021 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
More links
Kategorien
In stock of ZB MED Cologne/Königswinter
Ud II Zs.172: Show issues | Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular ab Jg. 2022: Lesesaal (EG) |
Order via subito
This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.