Results 81 to 90 of about 337,413 (230)

Endogenous TRIM5α Function Is Regulated by SUMOylation and Nuclear Sequestration for Efficient Innate Sensing in Dendritic Cells

open access: yesCell Reports, 2016
During retroviral infection, viral capsids are subject to restriction by the cellular factor TRIM5α. Here, we show that dendritic cells (DCs) derived from human and non-human primate species lack efficient TRIM5α-mediated retroviral restriction.
Débora M. Portilho   +10 more
doaj   +1 more source

BCA2/Rabring7 promotes tetherin-dependent HIV-1 restriction. [PDF]

open access: yesPLoS Pathogens, 2009
Host cell factors can either positively or negatively regulate the assembly and egress of HIV-1 particles from infected cells. Recent reports have identified a previously uncharacterized transmembrane protein, tetherin/CD317/BST-2, as a crucial host ...
Kei Miyakawa   +7 more
doaj   +1 more source

Structural basis of HIV-1 Vpu-mediated BST2 antagonism via hijacking of the clathrin adaptor protein complex 1. [PDF]

open access: yes, 2014
BST2/tetherin, an antiviral restriction factor, inhibits the release of enveloped viruses from the cell surface. Human immunodeficiency virus-1 (HIV-1) antagonizes BST2 through viral protein u (Vpu), which downregulates BST2 from the cell surface.
Guatelli, John   +7 more
core   +1 more source

Alpha-Synuclein Expression Restricts RNA Viral Infections in the Brain [PDF]

open access: yesJournal of Virology, 2016
ABSTRACT We have discovered that native, neuronal expression of alpha-synuclein (Asyn) inhibits viral infection, injury, and disease in the central nervous system (CNS). Enveloped RNA viruses, such as West Nile virus (WNV), invade the CNS and cause encephalitis, yet little is known about the innate neuron-specific inhibitors of ...
J. David Beckham   +6 more
openaire   +3 more sources

HIV suppression by host restriction factors and viral immune evasion [PDF]

open access: yesCurrent Opinion in Structural Biology, 2015
Antiviral restriction factors are an integral part of the host innate immune system that protects cells from viral pathogens, such as human immunodeficiency virus (HIV). Studies of the interactions between restriction factors and HIV have greatly advanced our understanding of both the viral life cycle and basic cell biology, as well as provided new ...
Xiaofei Jia, Qi Zhao, Yong Xiong
openaire   +3 more sources

Studies on the restriction of murine leukemia viruses by mouse APOBEC3.

open access: yesPLoS ONE, 2012
APOBEC3 proteins function to restrict the replication of retroviruses. One mechanism of this restriction is deamination of cytidines to uridines in (-) strand DNA, resulting in hypermutation of guanosines to adenosines in viral (+) strands.
Silvia Sanchez-Martinez   +7 more
doaj   +1 more source

Increased Polymerase Activity of Zoonotic H7N9 Allows Partial Escape from MxA

open access: yesViruses, 2022
The interferon-induced myxovirus resistance protein A (MxA) is a potent restriction factor that prevents zoonotic infection from influenza A virus (IAV) subtype H7N9.
Philipp P. Petric   +5 more
doaj   +1 more source

Mutational resilience of antiviral restriction favors primate TRIM5α in host-virus evolutionary arms races

open access: yeseLife, 2020
Host antiviral proteins engage in evolutionary arms races with viruses, in which both sides rapidly evolve at interaction interfaces to gain or evade immune defense.
Jeannette L Tenthorey   +4 more
doaj   +1 more source

Cellular Restriction Factors of Feline Immunodeficiency Virus

open access: yesViruses, 2011
Lentiviruses are known for their narrow cell- and species-tropisms, which are determined by cellular proteins whose absence or presence either support viral replication (dependency factors, cofactors) or inhibit viral replication (restriction factors ...
Carsten Münk, Jörg Zielonka
doaj   +1 more source

Interfering residues narrow the spectrum of MLV restriction by human TRIM5alpha. [PDF]

open access: yesPLoS Pathogens, 2007
TRIM5alpha is a restriction factor that limits infection of human cells by so-called N- but not B- or NB-tropic strains of murine leukemia virus (MLV). Here, we performed a mutation-based functional analysis of TRIM5alpha-mediated MLV restriction.
Pierre V Maillard   +4 more
doaj   +1 more source

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