Results 31 to 40 of about 1,367 (160)

A Glimpse of Nucleo-Cytoplasmic Large DNA Virus Biodiversity through the Eukaryotic Genomics Window

open access: yesViruses, 2017
The nucleocytoplasmic large DNA viruses (NCLDV) are a group of extremely complex double-stranded DNA viruses, which are major parasites of a variety of eukaryotes. Recent studies showed that certain eukaryotes contain fragments of NCLDV DNA integrated in
Lucie Gallot-Lavallée, Guillaume Blanc
doaj   +1 more source

The Mimivirus L375 Nudix enzyme hydrolyzes the 5' mRNA cap.

open access: yesPLoS ONE, 2021
The giant Mimivirus is a member of the nucleocytoplasmic large DNA viruses (NCLDV), a group of diverse viruses that contain double-stranded DNA (dsDNA) genomes that replicate primarily in eukaryotic hosts.
Grace Kago, Susan Parrish
doaj   +1 more source

Zooming on dynamics of marine microbial communities in the phycosphere of Akashiwo sanguinea (Dinophyta) blooms

open access: yesMolecular Ecology, Volume 30, Issue 1, Page 207-221, January 2021., 2021
Abstract Characterizing ecological relationships between viruses, bacteria and phytoplankton in the ocean is critical to understanding the ecosystem; however, these relationships are infrequently investigated together. To understand the dynamics of microbial communities and environmental factors in harmful algal blooms (HABs), we examined the ...
Junsu Kang   +12 more
wiley   +1 more source

A distinct lineage of giant viruses brings a rhodopsin photosystem to unicellular marine predators. [PDF]

open access: yes, 2019
Giant viruses are remarkable for their large genomes, often rivaling those of small bacteria, and for having genes thought exclusive to cellular life.
Bachy, Charles   +26 more
core   +5 more sources

Advantages and Limits of Metagenomic Assembly and Binning of a Giant Virus

open access: yesmSystems, 2020
Giant viruses have large genomes, often within the size range of cellular organisms. This distinguishes them from most other viruses and demands additional effort for the successful recovery of their genomes from environmental sequence data.
Frederik Schulz   +7 more
doaj   +3 more sources

Primase-polymerases are a functionally diverse superfamily of replication and repair enzymes [PDF]

open access: yes, 2015
Until relatively recently, DNA primases were viewed simply as a class of proteins that synthesize short RNA primers requisite for the initiation of DNA replication.
Aidan J. Doherty   +17 more
core   +1 more source

Schrödinger’s Cheshire cat: are haploid Emiliania huxleyi cells resistant to viral infection or not? [PDF]

open access: yes, 2017
Emiliania huxleyi is the main calcite producer on Earth and is routinely infected by a virus (EhV); a double stranded DNA (dsDNA) virus belonging to the family Phycodnaviridae. E. huxleyi exhibits a haplodiploid life cycle; the calcified diploid stage is
Andrea Highfield   +6 more
core   +5 more sources

Phylogenetic and phyletic studies of informational genes in genomes highlight existence of a 4 domain of life including giant viruses. [PDF]

open access: yesPLoS ONE, 2010
The discovery of Mimivirus, with its very large genome content, made it possible to identify genes common to the three domains of life (Eukarya, Bacteria and Archaea) and to generate controversial phylogenomic trees congruent with that of ribosomal genes,
Mickaël Boyer   +4 more
doaj   +1 more source

Mimivirus Relatives in the Sargasso Sea [PDF]

open access: yes, 2005
The discovery and genome analysis of Acanthamoeba polyphaga Mimivirus, the largest known DNA virus, challenged much of the accepted dogma regarding viruses. Its particle size (>400 nm), genome length (1.2 million bp) and huge gene repertoire (911 protein
Elodie Ghedin   +2 more
core   +6 more sources

Virus Genomes from Deep Sea Sediments Expand the Ocean Megavirome and Support Independent Origins of Viral Gigantism

open access: yesmBio, 2019
The nucleocytoplasmic large DNA viruses (NCLDV) of eukaryotes (proposed order, “Megavirales”) include the families Poxviridae, Asfarviridae, Iridoviridae, Ascoviridae, Phycodnaviridae, Marseilleviridae, and Mimiviridae, as well as still unclassified ...
Disa Bäckström   +9 more
doaj   +1 more source

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