Results 61 to 70 of about 1,238 (172)
Disentangling the origins of virophages and polintons [PDF]
Current Opinion in Virology, 2017 Virophages and polintons are part of a complex system that also involves eukaryotes, giant viruses, as well as other viruses and transposable elements. Virophages are cosmopolitan, being found in environments ranging from the Amazon River to Antarctic hypersaline lakes, while polintons are found in many single celled and multicellular eukaryotes ...
Campbell, S, Aswad, A, Katzourakis, A
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Structure of Sputnik, a virophage, at 3.5-Å resolution [PDF]
Proceedings of the National Academy of Sciences, 2012 “Sputnik” is a dsDNA virus, referred to as a virophage, that is coassembled with Mimivirus in the host amoeba. We have used cryo-EM to produce an electron density map of the icosahedral Sputnik virus at 3.5-Å resolution, sufficient to verify the identity of most amino acids in the capsid proteins and to establish the identity of the ...
Xinzheng Zhang +6 more
semanticscholar +3 more sources
Polar Microalgae: New Approaches towards Understanding Adaptations to an Extreme and Changing Environment [PDF]
, 2014 Polar Regions are unique and highly prolific ecosystems characterized by extreme environmental gradients. Photosynthetic autotrophs, the base of the food web, have had to adapt physiological mechanisms to maintain growth, reproduction and metabolic ...
Arrigo +26 more
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The Virophage Family Lavidaviridae.
Current Issues in Molecular Biology, 2020 Double-stranded (ds) DNA viruses of the family Lavidaviridae, commonly known as virophages, are a fascinating group of eukaryotic viruses that depend on a coinfecting giant dsDNA virus of the Mimiviridae for their propagation.
M. Fischer
semanticscholar +1 more source
Journal of Virology, 2020 Virophages are small parasitizing viruses of large/giant viruses. To our knowledge, the few isolated virophages all parasitize giant protozoan viruses (Mimiviridae) for propagation and form a tripartite infection system with hosts, here named the cell ...
Shengzhong Xu +6 more
semanticscholar +1 more source
Characterisation of host growth after infection with a broad-range freshwater cyanopodophage [PDF]
, 2014 Freshwater cyanophages are poorly characterised in comparison to their marine counterparts, however, the level of genetic diversity that exists in freshwater cyanophage communities is likely to exceed that found in marine environments, due to the habitat
Hayes, Paul +3 more
core +2 more sources
Role of the R349 Gene and Its Repeats in the MIMIVIRE Defense System
Frontiers in Microbiology, 2019 MIMIVIRE is a defense system described in lineage A Mimivirus (Mimiviridae family) that mediates resistance against Zamilon virophage. It is composed of putative helicase and nuclease associated with a gene of unknown function called R349, which contains
Said Mougari +5 more
doaj +1 more source
A classification system for virophages and satellite viruses [PDF]
Archives of Virology, 2015 Satellite viruses encode structural proteins required for the formation of infectious particles but depend on helper viruses for completing their replication cycles. Because of this unique property, satellite viruses that infect plants, arthropods, or mammals, as well as the more recently discovered satellite-like viruses that infect protists ...
Krupovic, Mart +2 more
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Identification of Capsid/Coat Related Protein Folds and Their Utility for Virus Classification [PDF]
, 2017 The viral supergroup includes the entire collection of known and unknown viruses that roam our planet and infect life forms. The supergroup is remarkably diverse both in its genetics and morphology and has historically remained difficult to study and ...
Arshan Nasir, Gustavo Caetano-Anollés
core +1 more source
Viruses, virophages, and their living nature
Acta Virologica, 2010 Over 100 years viruses have fascinated scientists around the world. Although biologists, chemists, physicians, veterinarians, and even physicists attempted to elucidate the nature of viruses, the question still remains "Are viruses alive?" Different theories have aimed at unifying our views of virology to provide an answer.
Ruiz Saenz, Julian, Rodas JD
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