Structural Studies of the Sputnik Virophage [PDF]
ABSTRACT The virophage Sputnik is a satellite virus of the giant mimivirus and is the only satellite virus reported to date whose propagation adversely affects its host virus' production. Genome sequence analysis showed that Sputnik has genes related to viruses infecting all three domains of life. Here, we report structural studies of Sputnik,
Sun, S. Y. +6 more
openaire +3 more sources
Inside the Lifestyle of the Virophage [PDF]
<i>Objective(s):</i> We sought to better characterize Sputnik, the first isolated virophage, and to analyze its parasitic lifestyle during co-infection with Marseillevirus (a new giant virus) in <i>Acanthamoeba castellanii</i>. <i>Methods:</i> A combination of electron microscopy, immunofluorescence microscopy, and ...
Desnues, Christelle, Raoult, Didier
openaire +3 more sources
Diversity of Virophages in Metagenomic Data Sets [PDF]
ABSTRACT Virophages, e.g., Sputnik, Mavirus, and Organic Lake virophage (OLV), are unusual parasites of giant double-stranded DNA (dsDNA) viruses, yet little is known about their diversity. Here, we describe the global distribution, abundance, and genetic diversity of virophages based on analyzing and mapping comprehensive metagenomic
Zhou, J. +7 more
openaire +3 more sources
The Virophage Family Lavidaviridae [PDF]
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. Instead of replicating in the nucleus, virophages multiply in the cytoplasmic virion factory of a coinfecting giant virus ...
openaire +3 more sources
Micro-eukaryotic diversity in hypolithons from Miers Valley, Antarctica [PDF]
The discovery of extensive and complex hypolithic communities in both cold and hot deserts has raised many questions regarding their ecology, biodiversity and relevance in terms of regional productivity.
Cary, S. Craig +4 more
core +23 more sources
High-level diversity of tailed phages, eukaryote-associated viruses, and virophage-like elements in the metaviromes of Antarctic soils [PDF]
The metaviromes of two distinct Antarctic hyperarid desert soil communities have been characterized. Hypolithic communities, cyanobacterium-dominated assemblages situated on the ventral surfaces of quartz pebbles embedded in the desert pavement, showed
Adriaenssens, Evelien M. +6 more
core +3 more sources
Integrative omics analysis of Pseudomonas aeruginosa virus PA5oct highlights the molecular complexity of jumbo phages [PDF]
Pseudomonas virus vB_PaeM_PA5oct is proposed as a model jumbo bacteriophage to investigate phage-bacteria interactions and is a candidate for phage therapy applications.
Blasdel, Bob G. +9 more
core +1 more source
Conservation of major and minor jelly-roll capsid proteins in Polinton (Maverick) transposons suggests that they are bona fide viruses [PDF]
Peer ...
Bamford, Dennis H. +2 more
core +3 more sources
Harnessing engineered virophages: a novel frontier against antibiotic-resistant superbugs. [PDF]
Talha M, Khalid M, Jafar HM, Waafira A.
europepmc +2 more sources
Evolution of exploitation and replication of giant viruses and virophages. [PDF]
Abstract Tripartite biotic interactions are inherently complex, and the strong interdependence of species and often one-sided exploitation can make these systems vulnerable to extinction. The persistence of species depends then on the balance between exploitation and avoidance of exploitation beyond the point where sustainable resource ...
Del Arco A, Fischer MG, Becks L.
europepmc +4 more sources

