Results 21 to 30 of about 13,547 (178)

Allosteric modulation of the HIV-1 gp120-gp41 association site by adjacent gp120 variable region 1 (V1) N-glycans linked to neutralization sensitivity. [PDF]

open access: yesPLoS Pathogens, 2013
The HIV-1 gp120-gp41 complex, which mediates viral fusion and cellular entry, undergoes rapid evolution within its external glycan shield to enable escape from neutralizing antibody (NAb).
Heidi E Drummer   +6 more
doaj   +1 more source

Design and Properties of NCCG-gp41, a Chimeric gp41 Molecule with Nanomolar HIV Fusion Inhibitory Activity [PDF]

open access: yesJournal of Biological Chemistry, 2001
The design and characterization of a chimeric protein, termed N(CCG)-gp41, derived from the ectodomain of human immunodeficiency virus (HIV), type I gp41 is described. N(CCG)-gp41 features an exposed trimeric coiled-coil comprising the N-terminal helices of the gp41 ectodomain.
J M, Louis, C A, Bewley, G M, Clore
openaire   +2 more sources

Crystal structure of HIV-1 gp41 including both fusion peptide and membrane proximal external regions.

open access: yesPLoS Pathogens, 2010
The HIV-1 envelope glycoprotein (Env) composed of the receptor binding domain gp120 and the fusion protein subunit gp41 catalyzes virus entry and is a major target for therapeutic intervention and for neutralizing antibodies.
Victor Buzon   +5 more
doaj   +1 more source

Sub-inhibitory concentrations of human α-defensin potentiate neutralizing antibodies against HIV-1 gp41 pre-hairpin intermediates in the presence of serum. [PDF]

open access: yesPLoS Pathogens, 2013
Human defensins are at the forefront of the host responses to HIV and other pathogens in mucosal tissues. However, their ability to inactivate HIV in the bloodstream has been questioned due to the antagonistic effect of serum.
Lusine Demirkhanyan   +3 more
doaj   +1 more source

Characterization of Humoral Immune Responses against Capsid Protein p24 and Transmembrane Glycoprotein gp41 of Human Immunodeficiency Virus Type 1 in China.

open access: yesPLoS ONE, 2016
The objective of this study was to extend our previous research and to further characterize the humoral immune responses against HIV-1 p24, gp41 and the specific peptides carrying the immunodominant epitopes (IDEs) that react with human serum samples ...
Xiufen Li   +6 more
doaj   +1 more source

Single mutations in the transmembrane envelope protein abrogate the immunosuppressive property of HIV-1

open access: yesRetrovirology, 2012
Background The mechanism by which HIV-1 induces AIDS is still unknown. Previously, synthetic peptides corresponding to the conserved immunosuppressive (isu) domain in gp41 of HIV-1 had been shown to inhibit proliferation and to modulate cytokine ...
Morozov Vladimir A   +3 more
doaj   +1 more source

Antiviral Activities of HIV-1-Specific Human Broadly Neutralizing Antibodies Are Isotype-Dependent

open access: yesVaccines, 2022
Broadly neutralizing antibodies (bNAbs) offer promising opportunities for preventing HIV-1 infection. The protection mechanisms of bNAbs involve the Fc domain, as well as their Fab counterpart.
Blandine Noailly   +7 more
doaj   +1 more source

gp41: HIV's shy protein [PDF]

open access: yesNature Medicine, 2004
The first X-ray crystal structures of gp41, the protein that mediates fusion of HIV-1 to target cells, were solved in the mid-1990s. The structures provide a foundation for understanding viral entry and the mechanism of action of compounds that block fusion.
Zwick, Michael B   +2 more
openaire   +1 more source

Evolution of the HIV-1 envelope glycoproteins with a disulfide bond between gp120 and gp41

open access: yesRetrovirology, 2004
Background We previously described the construction of an HIV-1 envelope glycoprotein complex (Env) that is stabilized by an engineered intermolecular disulfide bond (SOS) between gp120 and gp41.
Caffrey Michael   +5 more
doaj   +1 more source

The membrane-spanning domain of gp41 plays a critical role in intracellular trafficking of the HIV envelope protein

open access: yesRetrovirology, 2010
Background The sequences of membrane-spanning domains (MSDs) on the gp41 subunit are highly conserved among many isolates of HIV-1. The GXXXG motif, a potential helix-helix interaction motif, and an arginine residue (rare in hydrophobic MSDs) are ...
Kondo Naoyuki   +6 more
doaj   +1 more source

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