Results 71 to 80 of about 1,218,197 (305)

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Class III Viral Membrane Fusion Proteins [PDF]

open access: yesCurrent Opinion in Structural Biology, 2009
Accumulating structural studies of viral fusion glycoproteins have revealed unanticipated structural relationships between unrelated virus families and allowed the grouping of these membrane fusogens into three distinct classes. Here we review the newly identified group of class III viral fusion proteins, whose members include fusion proteins from ...
Marija, Backovic, Theodore S, Jardetzky
openaire   +3 more sources

Varicellovirus UL 49.5 proteins differentially affect the function of the transporter associated with antigen processing, TAP [PDF]

open access: yes, 2008
Cytotoxic T-lymphocytes play an important role in the protection against viral infections, which they detect through the recognition of virus-derived peptides, presented in the context of MHC class I molecules at the surface of the infected cell.
Bienkowska-Szewczyk, Krystyna   +19 more
core  

The regulated expression of Epstein-Barr virus. III. Proteins specified by EBV during the lytic cycle [PDF]

open access: yes, 1981
The experiments show that 30 virus-induced or virus-specified proteins were synthesized in Raji cells after superinfection with Epstein-Barr virus (EBV) derived from P3HR1 cells. Using a combination of pulse labelling, application of cycloheximide blocks
Bayliss, G. J., Wolf, Hans J.
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

The essential role of mitochondrial dynamics in antiviral immunity. [PDF]

open access: yes, 2018
Viruses alter cellular physiology and function to establish cellular environment conducive for viral proliferation. Viral immune evasion is an essential aspect of viral persistence and proliferation.
Ahn, Dae-Gyun   +3 more
core   +2 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Viral protein R of HIV‐1 [PDF]

open access: yesReviews in Medical Virology, 1999
Viral protein R (Vpr) of HIV-1 belongs to a class of so called 'accessory' proteins, originally thought to be dispensable for virus replication, at least in vitro. Indeed, viruses with mutated or deleted Vpr replicate well in transformed T cell lines.
M, Bukrinsky, A, Adzhubei
openaire   +2 more sources

Isolation of poliovirus 2C mutants defective in viral RNA synthesis [PDF]

open access: yes, 1988
Two poliovirus mutants were isolated that contain an oligonucleotide linker insertion in the 2C-coding region of the viral genome. One, 2C-31, has a strongly temperature-sensitive phenotype and the other, 2C-32, forms small plaques on HeLa cell ...
Baltimore, David, Li, Jing-Po
core  

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

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