Results 171 to 180 of about 1,873 (181)

Viruses in the female lower reproductive tract: a systematic descriptive review of metagenomic investigations. [PDF]

NPJ Biofilms Microbiomes
Honorato L, Paião HGO, da Costa AC, Tozetto-Mendoza TR, Mendes-Correa MC, Witkin SS.   +5 more
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Complete genome sequence of Courdo11 virus, a member of the family Mimiviridae

Virus Genes, 2013
Giant viruses of amoebae were discovered 10 years ago and led to the description of two new viral families: Mimiviridae and Marseilleviridae. These viruses exhibit remarkable features, including large capsids and genomes that are similar in size to those of small bacteria and their large genetic repertoires include genes that are unique among viruses ...
Niyaz, Yoosuf, Isabelle, Pagnier, Ghislain, Fournous, Catherine, Robert, Bernard, La Scola, Didier, Raoult, Philippe, Colson   +6 more
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Isolation and Identification of a Large Green Alga Virus ( Chlorella Virus XW01) of Mimiviridae and Its Virophage ( Chlorella Virus Virophage SW01) by Using Unicellular Green Algal Cultures

Journal of Virology, 2022
Parasitic virophages are small unicellular eukaryotic dsDNA viruses that rely on the viral factories of coinfecting giant/large dsDNA viruses for propagation. Presently, the identified eukaryotic hosts of isolated virophages were restricted to a free-living amoeba, Acanthamoeba polyphaga , and a widespread marine ...
Yijian Sheng, Zhenqi Wu, Shengzhong Xu, Yongjie Wang   +3 more
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Mimivirus and Mimiviridae: Giant viruses with an increasing number of potential hosts, including corals and sponges

Journal of Invertebrate Pathology, 2009
Mimivirus, a giant DNA virus (i.e. "girus") infecting species of the genus Acanthamoeba, was first identified in 2003. With a particle size of 0.7microm in diameter, and a genome size of 1.2Mb encoding more than 900 proteins, it is the most complex virus described to date.
Jean-Michel, Claverie, Renata, Grzela, Audrey, Lartigue, Alain, Bernadac, Serge, Nitsche, Jean, Vacelet, Hiroyuki, Ogata, Chantal, Abergel   +7 more
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Megavirales Composing a Fourth Domain of Life: Mimiviridae and Marseilleviridae

2012
The 2003 discovery of Acanthamoeba polyphaga Mimivirus led to several breakthroughs and subsequent discussions related to the evolution, origin and definition of viruses and dramatically boosted scientific interest in giant viruses. Mimivirus was the largest virus with respect to particle size and genome length, and its analysis blurred the paradigms ...
Philippe Colson, Didier Raoult
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Isolation and Identification of a Large Green Alga Virus (Chlorella Virus XW01) of Mimiviridae and Its Virophage (Chlorella Virus Virophage SW01) by Using Unicellular Green Algal Cultures.

Journal of virology, 2022
Virophages are a group of small double-stranded DNA viruses that infect protist hosts and parasitize the viral factory of host giant/large viruses to propagate. Here, we discover a novel cell-virus-virophage (CVv) tripartite interaction system by using unicellular micro-green algae (Chlorella sp.) as eukaryotic hosts for the first time. Viral particles,
Yijian, Sheng, Zhenqi, Wu, Shengzhong, Xu, Yongjie, Wang   +3 more
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Algal Mimiviruses (Mimiviridae)

2021
Ruth-Anne Sandaa, Håkon Dahle, Corina P.D. Brussaard, Hiroyuki Ogata, Romain Blanc-Mathieu   +4 more
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High-throughput isolation of giant viruses of the Mimiviridae and Marseilleviridae families in the Tunisian environment.

Environmental microbiology, 2013
Giant viruses of the Megavirales order have been recently isolated from aquatic environments and have long been neglected because they are removed from samples during viral purification for viral metagenomic studies. Due to bacterial overgrowth and susceptibility to high concentrations of antibiotics, isolation by amoeba co-culture has a low efficiency
Mondher, Boughalmi, Hanene, Saadi, Isabelle, Pagnier, Philippe, Colson, Ghislain, Fournous, Didier, Raoult, Bernard, La Scola   +6 more
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The SAMHD1 Virolog in Mimiviridae as a Defense against Virophages

Sterile α motif and HD domain-containing protein (SAMHD1) is the only deoxyribonucleosidetriphosphohydrolase in humans to break down dNTPs into the deoxy-bases and triphosphates toregulate dNTP molecular levels in a nucleotide- and metal-dependent mechanism.
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