Results 21 to 30 of about 3,644 (165)

Revolving ATPase motors as asymmetrical hexamers in translocating lengthy dsDNA via conformational changes and electrostatic interactions in phi29, T7, herpesvirus, mimivirus, E. coli, and Streptomyces

Exploration, Volume 3, Issue 2, April 2023., 2023
The revolving DNA motors of ATPase have been found in viruses (phi29, T7, herpesvirus, and mimivirus) and bacteria (E. coli and Streptomyces). The motors made of asymmetrical 6 subunits translocate lengthy double‐stranded (ds)DNA. The dsDNA is moved in a circular motion around the inner surface of the motor channel subunits.
Tao Weitao, Giovanna Grandinetti, Peixuan Guo   +2 more
wiley   +1 more source

Pleistocene glacial and interglacial ecosystems inferred from ancient DNA analyses of permafrost sediments from Batagay megaslump, East Siberia

Environmental DNA, Volume 4, Issue 6, Page 1265-1283, November 2022., 2022
As the past is the key to the future, to understand community transformations and ecological interactions, we reconstructed ecosystem‐wide biotic composition (from viruses to megaherbivores) between glacials and interglacials from the Middle and Late Pleistocene at the Batagay megaslump, east Siberia.
Jérémy Courtin, Amedea Perfumo, Andrei A. Andreev, Thomas Opel, Kathleen R. Stoof‐Leichsenring, Mary E. Edwards, Julian B. Murton, Ulrike Herzschuh   +7 more
wiley   +1 more source

Bacteriophages pass through candle‐shaped porous ceramic filters: Application for the collection of viruses in soil water

MicrobiologyOpen, Volume 11, Issue 5, October 2022., 2022
This study proposes to use porous candles as a new tool for collecting soil water viruses. In the first step, the passage of model viruses through the ceramic part of the candles was investigated. Regarding the field application, the experiments carried out showed a successful recovery of viruses, demonstrating the relevance and efficiency of such a ...
Perrine Florent, Henry‐Michel Cauchie, Malte Herold, Leslie Ogorzaly   +3 more
wiley   +1 more source

Megaviruses contain various genes encoding for eukaryotic vesicle trafficking factors

Traffic, Volume 23, Issue 8, Page 414-425, August 2022., 2022
Giant viruses enter their eukaryotic host cells by phagocytosis. For reproduction, they hijack the host cell's membranes by an unknown mechanism. Here, we found that giant viruses express several core factors of the eukaryotic vesicle fusion machinery, including SNARE, Rab, SM proteins, and the disassembly protein NSF.
Dany Khalifeh, Emilie Neveu, Dirk Fasshauer   +2 more
wiley   +1 more source

Adaptive evolution of viruses infecting marine microalgae (haptophytes), from acute infections to stable coexistence

Biological Reviews, Volume 97, Issue 1, Page 179-194, February 2022., 2022
ABSTRACT Collectively known as phytoplankton, photosynthetic microbes form the base of the marine food web, and account for up to half of the primary production on Earth. Haptophytes are key components of this phytoplankton community, playing important roles both as primary producers and as mixotrophs that graze on bacteria and protists.
Ruth‐Anne Sandaa, Marius R. Saltvedt, Håkon Dahle, Haina Wang, Selina Våge, Romain Blanc‐Mathieu, Ida H. Steen, Nigel Grimsley, Bente Edvardsen, Hiroyuki Ogata, Janice Lawrence   +10 more
wiley   +1 more source

Evolutionary Dynamics of Giant Viruses and their Virophages [PDF]

, 2013
Giant viruses contain large genomes, encode many proteins atypical for viruses, replicate in large viral factories, and tend to infect protists. The giant virus replication factories can in turn be infected by so called virophages, which are smaller ...
Anderson, Beddington, Briggs, Claverie, Claverie, Claverie, Claverie, Colson, Culley, Desnues, Desnues, Desnues, Fischer, Fischer, Forterre, Gillespie, Herrero-Uribe, Hochberg, Holt, Iyer, Koonin, Krupovic, Lawrence, May, McCallum, Nowak, Pearson, Raoult, Raoult, Roy, Ruiz-Saenz, Scola, Scola, Scola, Sun, Suzan-Monti, Wodarz, Yamada, Yau, Zhang   +39 more
core   +2 more sources

Modulation of the expression of mimivirus-encoded translation-related genes in response to nutrient availability during Acanthamoeba castellanii infection

Frontiers in Microbiology, 2015
The complexity of giant virus genomes is intriguing, especially the presence of genes encoding components of the protein translation machinery such as transfer RNAs and aminoacyl-tRNA-synthetases; these features are uncommon among other viruses. Although
Lorena eSilva, Gabriel eAlmeida, Felipe eAssis, Jonas eAlbarnaz, Paulo eBoratto, Fabio eDornas, Ketyllen eAndrade, Bernard eLa Scola, Erna eKroon, Flavio eda Fonseca, Jonatas eAbrahao   +10 more
doaj   +1 more source

Exploring nucleo-cytoplasmic large DNA viruses in Tara Oceans microbial metagenomes [PDF]

, 2013
Nucleo-cytoplasmic large DNA viruses (NCLDVs) constitute a group of eukaryotic viruses that can have crucial ecological roles in the sea by accelerating the turnover of their unicellular hosts or by causing diseases in animals. To better characterize the
Acinas, Silvia G., Bork, Peer, Claverie, Jean-Michel, Clerissi, Camille, de Vargas, Colomban, Department of Applied Biological Sciences (DBIT), Vrije Universiteit Brussel, Brussels, Belgium, Department of Applied Biological Sciences (DBIT), Vrije Universiteit Brussel, Brussels, Belgium, Department of Applied Biological Sciences (DBIT), Vrije Universiteit Brussel, Brussels, Belgium, Desdevises, Yves, Faust, Karoline, Ferrera, Isabel, Grimsley, Nigel, Hingamp, Pascal, Jaillon, Olivier, Kandels-Lewis, Stefanie, Karsenti, Eric, Lima-Medez, Gipsi, Moreau, Hervé, Not, Fabrice, Ogata, Hiroyuki, Pesant, Stéphane, Poulain, Julie, Raes, Jeroen, Sarmento, Hugo, Subirana, Lucie, Sunagawa, Shinichi, Villar, Emilie, Wincker, Patrick   +27 more
core   +1 more source

The XBI BioLab for life science experiments at the European XFEL

Journal of Applied Crystallography, Volume 54, Issue 1, Page 7-21, February 2021., 2021
An overview of a unique life science facility at the European XFEL is provided, and its importance in sample preparation, characterization and analysis prior to measurements at the different European XFEL instruments is discussed. The capabilities that the facility can provide for the research community are highlighted, alongside examples of recent ...
Huijong Han, Ekaterina Round, Robin Schubert, Yasmin Gül, Jana Makroczyová, Domingo Meza, Philipp Heuser, Martin Aepfelbacher, Imrich Barák, Christian Betzel, Petra Fromme, Inari Kursula, Poul Nissen, Elena Tereschenko, Joachim Schulz, Charlotte Uetrecht, Jozef Ulicný, Matthias Wilmanns, Janos Hajdu, Victor S. Lamzin, Kristina Lorenzen   +20 more
wiley   +1 more source

Giant viruses, giant chimeras: The multiple evolutionary histories of Mimivirus genes

BMC Evolutionary Biology, 2008
Background Although capable to evolve, viruses are generally considered non-living entities because they are acellular and devoid of metabolism. However, the recent publication of the genome sequence of the Mimivirus, a giant virus that parasitises ...
Brochier-Armanet Céline, Moreira David
doaj   +1 more source