Results 51 to 60 of about 959 (162)

Extensive Gene Remodeling in the Viral World: New Evidence for Nongradual Evolution in the Mobilome Network [PDF]

open access: yes, 2014
International audienceComplex nongradual evolutionary processes such as gene remodeling are difficult to model, to visualize, and to investigate systematically.
Bapteste, Eric   +3 more
core   +3 more sources

Genome diversity of marine phages recovered from Mediterranean metagenomes: Size matters [PDF]

open access: yes, 2017
Marine viruses play a critical role not only in the global geochemical cycles but also in the biology and evolution of their hosts. Despite their importance, viral diversity remains underexplored mostly due to sampling and cultivation challenges.
González-Serrano, Rafael   +4 more
core   +5 more sources

A new Zamilon-like virophage partial genome assembled from a bioreactor metagenome

open access: yesFrontiers in Microbiology, 2015
Virophages replicate within viral factories inside the Acanthamoeba cytoplasm, and decrease the infectivity and replication of their associated giant viruses.
Meriem eBekliz   +8 more
doaj   +1 more source

Analysis of virus genomes from glacial environments reveals novel virus groups with unusual host interactions [PDF]

open access: yes, 2015
Microbial communities in glacial ecosystems are diverse, active, and subjected to strong viral pressures and infection rates. In this study we analyse putative virus genomes assembled from three dsDNA viromes from cryoconite hole ecosystems of Svalbard ...
Anesio, Alexandre M B   +2 more
core   +3 more sources

A classification system for virophages and satellite viruses [PDF]

open access: yesArchives 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
openaire   +3 more sources

Identification of Capsid/Coat Related Protein Folds and Their Utility for Virus Classification [PDF]

open access: yes, 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

GIANT VIRUSES: ORIGIN, SPREADING, TAXONOMICAL, STRUCTURAL-MORPHOLOGICAL AND MOLECULAR-BIOLOGICAL CHARACTERISTICS

open access: yesВопросы вирусологии, 2018
The brief review is devoted to description of the discovery of giant viruses belonging to the families of Mimiviridae and Marseilleviridae, as well as unassigned genera Pithoviruses, Pandoravirus, and Molliviruses.
D. K. Lvov   +3 more
doaj   +1 more source

Viruses, virophages, and their living nature

open access: yesActa 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
openaire   +2 more sources

Quantitative Assessment of Nucleocytoplasmic Large DNA Virus and Host Interactions Predicted by Co-occurrence Analyses [PDF]

open access: yes, 2021
Nucleocytoplasmic large DNA viruses (NCLDVs) are highly diverse and abundant in marine environments. However, the knowledge of their hosts is limited because only a few NCLDVs have been isolated so far.
Blanc-Mathieu, R.   +6 more
core   +2 more sources

Structure of Sputnik, a virophage, at 3.5-Å resolution [PDF]

open access: yesProceedings 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
openaire   +2 more sources

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