Results 31 to 40 of about 24,285 (259)

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

Selected amino acid mutations in HIV-1 B subtype gp41 are Associated with Specific gp120V3 signatures in the regulation of Co-Receptor usage

open access: yesRetrovirology, 2011
Background The third variable loop (V3) of the HIV-1 gp120 surface protein is a major determinant of cellular co-receptor binding. However, HIV-1 can also modulate its tropism through other regions in gp120, such as V1, V2 and C4 regions, as well as in ...
D'Arrigo Roberta   +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

Super Potent Bispecific Llama VHH Antibodies Neutralize HIV via a Combination of gp41 and gp120 Epitopes

open access: yesAntibodies, 2019
Broad and potent neutralizing llama single domain antibodies (VHH) against HIV-1 targeting the CD4 binding site (CD4bs) have previously been isolated upon llama immunization.
N. Strokappe   +9 more
semanticscholar   +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

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

IGHV1-69 B cell chronic lymphocytic leukemia antibodies cross-react with HIV-1 and hepatitis C virus antigens as well as intestinal commensal bacteria. [PDF]

open access: yesPLoS ONE, 2014
B-cell chronic lymphocytic leukemia (B-CLL) patients expressing unmutated immunoglobulin heavy variable regions (IGHVs) use the IGHV1-69 B cell receptor (BCR) in 25% of cases.
Kwan-Ki Hwang   +21 more
doaj   +1 more source

Broad and potent neutralization of HIV-1 by a gp41-specific human antibody

open access: yesNature, 2012
Characterization of human monoclonal antibodies is providing considerable insight into mechanisms of broad HIV-1 neutralization. Here we report an HIV-1 gp41 membrane-proximal external region (MPER)-specific antibody, named 10E8, which neutralizes ∼98 ...
Jing-He Huang   +19 more
semanticscholar   +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

Structure and Recognition of a Novel HIV-1 gp120-gp41 Interface Antibody that Caused MPER Exposure through Viral Escape

open access: yesPLoS Pathogens, 2017
A comprehensive understanding of the regions on HIV-1 envelope trimers targeted by broadly neutralizing antibodies may contribute to rational design of an HIV-1 vaccine.
C. K. Wibmer   +21 more
semanticscholar   +1 more source

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