Results 121 to 130 of about 3,436,004 (333)

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

FEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point, Wafaa Achache, Janïs Laudouze, Eliana Sepulveda Ramos, Mickaël Maziero, Céline Crauste, Stéphane Canaan, Pierre Santucci   +7 more
wiley   +1 more source

Limited impact of the siRNA pathway on transposable element expression in Aedes aegypti

BMC Biology
Background Transposable elements (TEs) are DNA sequences that can change their position within a genome. In insects, small RNA pathways are central to the transcriptional and post-transcriptional regulation of TE expression.
Alexander Bergman, Anna B. Crist, Hélène Lopez-Maestre, Hervé Blanc, Mauro Castelló-Sanjuán, Lionel Frangeul, Hugo Varet, Josquin Daron, Sarah H. Merkling, Maria-Carla Saleh, Louis Lambrechts   +10 more
doaj   +1 more source

Seasonal Genetic Drift of Human Influenza A Virus Quasispecies Revealed by Deep Sequencing

Frontiers in Microbiology, 2018
After a pandemic wave in 2009 following their introduction in the human population, the H1N1pdm09 viruses replaced the previously circulating, pre-pandemic H1N1 virus and, along with H3N2 viruses, are now responsible for the seasonal influenza type A ...
Cyril Barbezange, Cyril Barbezange, Cyril Barbezange, Cyril Barbezange, Louis Jones, Louis Jones, Louis Jones, Louis Jones, Hervé Blanc, Hervé Blanc, Ofer Isakov, Gershon Celniker, Vincent Enouf, Vincent Enouf, Vincent Enouf, Noam Shomron, Marco Vignuzzi, Marco Vignuzzi, Sylvie van der Werf, Sylvie van der Werf, Sylvie van der Werf   +20 more
doaj   +1 more source

Contribution of hypoxia inducible factor-1 during viral infections

Virulence, 2020
Hypoxia-inducible factor 1 (HIF-1) is a transcription factor that plays critical roles during the cellular response to hypoxia. Under normoxic conditions, its function is tightly regulated by the degradation of its alpha subunit (HIF-1α), which impairs ...
Antonia Reyes, Nicolás Corrales, Nicolás M. S. Gálvez, Susan M. Bueno, Alexis M. Kalergis, Pablo A. González   +5 more
doaj   +1 more source

The Origin and Evolution of Viruses as Molecular Organisms [PDF]

, 2009
Viruses are the most abundant life forms and the repertoire of viral genes is greater than that of cellular genes. It is also evident that viruses have played a major role in driving cellular evolution, and yet, viruses are not part of mainstream biology,
Claudiu I. Bandea
core   +2 more sources

The NS3 protein of rice hoja blanca virus suppresses RNA silencing in mammalian cells [PDF]

, 2008
The NS3 protein of the tenuivirus rice hoja blanca virus (RHBV) has previously been shown to represent the viral RNA interference (RNAi) suppressor and is active in both plant and insect cells by binding short interfering RNAs (siRNAs) in vitro.
Goldbach, R.W., Hemmes, J.C., Prins, M.W., Schnettler, E.   +3 more
core   +2 more sources

Attenuation of RNA viruses by redirecting their evolution in sequence space

Nature Microbiology, 2017
RNA viruses pose serious threats to human health. Their success relies on their capacity to generate genetic variability and, consequently, on their adaptive potential.
G. Moratorio, Rasmus Henningsson, C. Barbezange, Lucía Carrau, Antonio V. Bordería, H. Blanc, S. Beaucourt, Enzo Z. Poirier, T. Vallet, J. Boussier, Bryan C. Mounce, Magnus Fontes, M. Vignuzzi   +12 more
semanticscholar   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Historical Pandemic and Contemporary Influenza A Viruses Reveal PB2 M631L as a Convergent Adaptation to Human ANP32

Microorganisms
Understanding the genetic changes that allow avian influenza A viruses (IAVs) to switch their natural hosts and establish productive infection in humans is important for pandemic risk assessment. Adaptations in the IAV polymerase are required to overcome
Matthias Budt, Irina Barac, Jessica Kohs, Tim Krischuns, Nadia Naffakh, Thorsten Wolff   +5 more
doaj   +1 more source

Unprecedented genomic diversity of RNA viruses in arthropods reveals the ancestry of negative-sense RNA viruses

eLife, 2015
Although arthropods are important viral vectors, the biodiversity of arthropod viruses, as well as the role that arthropods have played in viral origins and evolution, is unclear.
Ci-xiu Li, M. Shi, Jun-hua Tian, Xian-dan Lin, Yan-jun Kang, Liang-Jun Chen, X. Qin, Jianguo Xu, E. Holmes, Yong‐Zhen Zhang   +9 more
semanticscholar   +1 more source