Results 61 to 70 of about 1,874 (125)

Ameba-associated Microorganisms and Diagnosis of Nosocomial Pneumonia

open access: yesEmerging Infectious Diseases, 2006
To elucidate the role of ameba-associated microorganisms (AAMs) as etiologic agents of pneumonia, we screened for Legionella spp., Parachlamydia acanthamoeba, Afipia sp., Bosea spp., Bradyrhizobium spp., Mesorhizobium amorphae, Rasbo bacterium ...
Pierre Berger   +5 more
doaj   +1 more source

Diversity of Amoeba-Associated Giant Viruses Isolated in Algeria

open access: yesDiversity, 2020
The discovery of several giant amoeba viruses has opened up a novel area in the field of virology. Despite this, knowledge about ecology of these viruses remains patchy. In this study, we aimed to characterize the diversity of giant viruses in Algeria by
Hadjer Boudjemaa   +3 more
doaj   +1 more source

Structural and functional insights into Mimivirus ORFans

open access: yesBMC Genomics, 2007
Background Mimivirus isolated from A. polyphaga is the largest virus discovered so far. It is unique among all the viruses in having genes related to translation, DNA repair and replication which bear close homology to eukaryotic genes.
Fischer Daniel, Saini Harpreet
doaj   +1 more source

Ancestrality and Mosaicism of Giant Viruses Supporting the Definition of the Fourth TRUC of Microbes

open access: yesFrontiers in Microbiology, 2018
Giant viruses of amoebae were discovered in 2003. Since then, their diversity has greatly expanded. They were suggested to form a fourth branch of life, collectively named ‘TRUC’ (for “Things Resisting Uncompleted Classifications”) alongside Bacteria ...
Philippe Colson   +10 more
doaj   +1 more source

Giant Viruses—Big Surprises

open access: yesViruses, 2019
Viruses are the most prevalent infectious agents, populating almost every ecosystem on earth. Most viruses carry only a handful of genes supporting their replication and the production of capsids.
Nadav Brandes, Michal Linial
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

Screening Pneumonia Patients for Mimivirus

open access: yesEmerging Infectious Diseases, 2008
Acanthamoeba polyphaga mimivirus (APM), a virus of free-living amebae, has reportedly caused human respiratory disease. Using 2 newly developed real-time PCR assays, we screened 496 respiratory specimens from 9 pneumonia-patient populations for APM. This
Ryan K. Dare   +2 more
doaj   +1 more source

Membrane assembly during the infection cycle of the giant Mimivirus. [PDF]

open access: yesPLoS Pathogens, 2013
Although extensively studied, the structure, cellular origin and assembly mechanism of internal membranes during viral infection remain unclear. By combining diverse imaging techniques, including the novel Scanning-Transmission Electron Microscopy ...
Yael Mutsafi   +3 more
doaj   +1 more source

Discovery and Further Studies on Giant Viruses at the IHU Mediterranee Infection That Modified the Perception of the Virosphere

open access: yesViruses, 2019
The history of giant viruses began in 2003 with the identification of Acanthamoeba polyphaga mimivirus. Since then, giant viruses of amoeba enlightened an unknown part of the viral world, and every discovery and characterization of a new giant virus ...
Clara Rolland   +20 more
doaj   +1 more source

Stem-Loop RNA Hairpins in Giant Viruses: Invading rRNA-Like Repeats and a Template Free RNA

open access: yesFrontiers in Microbiology, 2018
We examine the hypothesis that de novo template-free RNAs still form spontaneously, as they did at the origins of life, invade modern genomes, contribute new genetic material.
Hervé Seligmann, Didier Raoult
doaj   +1 more source

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