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ArchaeaPyrococcusDesulfurococcaceaeThermococcusArchaeal ProteinsPyrococcus furiosusThermoproteaceaeDNA, ArchaealSulfolobusGenes, ArchaealThermococcaceaeAcidianusAeropyrumGenome, ArchaealArchaeoglobusGene Expression Regulation, ArchaealSulfolobus acidocaldariusRNA, ArchaealArchaeoglobus fulgidusLipothrixviridaeArchaeal VirusesThermoproteusSulfolobus solfataricusHot TemperatureMethanococcalesMolecular Sequence DataEnzyme StabilityPhylogenyAmino Acid SequencePyrobaculumThermotoga maritimaTemperatureSequence Homology, Amino AcidPyrococcus horikoshiiMethanococcusCrenarchaeotaRNA VirusesRecombinant ProteinsCloning, MolecularSubstrate SpecificityChromosomes, ArchaealPyrococcus abyssiVaccinia virusBase SequenceGram-Negative Anaerobic BacteriaReceptors, VirusVirus ReplicationVirus CultivationHydrothermal VentsVirus SheddingEuryarchaeotaFuselloviridaeVirus DiseasesSimian virus 40Sequence AlignmentDNA VirusesVirus AssemblyPlant VirusesSequence Analysis, DNABacteriaThermococcalesDefective VirusesRudiviridaeHot SpringsSindbis VirusMeasles virusInfluenza A Virus, H1N1 SubtypeEscherichia coliRabies virusInfluenza A Virus, H5N1 SubtypeMethaneSulfurSeawaterRubredoxinsGram-Negative Anaerobic Straight, Curved, and Helical RodsSulfolobaceaeModels, MolecularNanoarchaeotaTungstenInfluenza A Virus, H3N2 SubtypeCrystallography, X-RayHepatitis B virusRNA, Ribosomal, 16SWest Nile virusHaloferax volcaniiRespiratory Syncytial VirusesViral ProteinsOpen Reading FramesHydrogen-Ion ConcentrationEvolution, MolecularVirus ActivationRNA, ViralGenes, ViralGroup II ChaperoninsAntigens, ViralKineticsVesicular stomatitis Indiana virusArchaeoglobalesVirus LatencyWater Microbiology
Bacteria and archaeaInfectDeep-sea hydrothermalSulfolobusPyrococcus2017GenusArchaeal virusesInstitut PasteurGenomesThermophilicVirologySulfolobalesFuselloviridaeGenomeVirionAnaerobicAcidianusIslandicusPyrobaculumEnvironmentsPrangishviliEukaryotesTaxonomyEubacteriaProteinGenesVirionsComplexesRevealIsolationDifferentialReplicationMembraneProkaryoticInteractionsICTVInsightViralEnvelopeCharacteristicsDomainExtremeParticlesLifeStudies
Bacteria and archaea4
  • Prokaryotes including bacteria and archaea release membrane vesicles (MVs) (20 to 400 nm in diameter) into their extracellular milieu. (appmicro.org)
  • Chemosynthetic bacteria and archaea form the foundation of vent ecosystems by exploiting the chemical disequilibrium between reducing hydrothermal fluids and oxidizing seawater, harnessing this energy to fix inorganic carbon into biomass. (nature.com)
  • In contrast to tailed icosahedral double-stranded DNA (dsDNA) viruses infecting bacteria and archaea, and herpesviruses infecting animals and humans, where naked DNA is packed under very high pressure due to the repulsion between adjacent layers of DNA, the circular dsDNA in SPV1 is fully covered with a viral protein forming a nucleoprotein filament with attractive interactions between layers. (hal.science)
  • Corrigendum: Minimum information about a single amplified genome (MISAG) and a metagenome-assembled genome (MIMAG) of bacteria and archaea. (mbl.edu)
Infect5
  • Portogloboviridae is a family of dsDNA viruses that infect archaea. (wikipedia.org)
  • The viruses that infect such microbes must also be able to retain infectivity in extreme conditions. (virology.ws)
  • Archaeal viruses, especially viruses that infect hyperthermophilic archaea of the phylum Crenarchaeota, constitute one of the least understood parts of the virosphere. (pasteur.fr)
  • Bacteriophages (phages), viruses that infect and replicate within bacteria, are important in both natural and human microbiomes because they prey on bacterial hosts, mediate horizontal gene transfer, alter host metabolism and redistribute bacterially derived compounds via host cell lysis 1 . (nature.com)
  • The family Bicaudaviridae includes viruses that infect hyperthermophilic archaea in the genus Acidianus. (hal.science)
Deep-sea hydrothermal1
Sulfolobus5
  • Host-dependent differences in replication strategy of the Sulfolobus spindle-shaped virus strain SSV9 (a.k.a. (microbiologyresearch.org)
  • In addition, a revised genome annotation of SIRV2 (Sulfolobus islandicus rod-shaped virus 2) is presented. (pasteur.fr)
  • Genome organisation of Sulfolobus spindle-shaped virus 1, a member of the family Fuselloviridae . (ictv.global)
  • Extreme mutation tolerance: nearly half of the archaeal fusellovirus Sulfolobus spindle-shaped virus 1 genes are not required for virus function, including the minor capsid protein gene vp3. (ictv.global)
  • We have used electron cryo-microscopy to study at 3.7-Å resolution the structure of the Sulfolobus polyhedral virus 1 (SPV1), which was originally isolated from a hot, acidic spring in Beppu, Japan. (hal.science)
Pyrococcus1
  • Gene content and phylogenetic analyses illuminated a robust connection between pTN2-like plasmids and Pyrococcus abyssi virus 1 (PAV1), with roughly half of the viral genome being composed of genes that have homologues in plasmids. (pasteur.fr)
20171
  • Model for a novel membrane envelope in a filamentous hyperthermophilic virus, eLife , June 22, 2017. (pasteur.fr)
Genus2
  • 1. Bettstetter M, Peng X, Garrett RA, and Prangishvili D. AFV1, a novel virus infecting hyperthermophilic archaea of the genus Acidianus. (pasteur.fr)
  • Members of the genus Alphafusellovirus have lemon-shaped virions, about 90 × 50 nm in diameter, whereas viruses of the genus Betafusellovirus have elongated, cigar-shaped virions. (ictv.global)
Archaeal viruses2
  • However, owing to recent substantial research efforts by several groups, archaeal viruses are starting to gradually reveal their secrets. (pasteur.fr)
  • Future studies on archaeal viruses, combined with the knowledge on viruses of bacteria and eukaryotes, should lead to a better global understanding of the diversity and evolution of virus-host interactions in the viral world. (pasteur.fr)
Institut Pasteur1
  • Acidianus hospitalis Filamentous Virus 1 was discovered in the hot springs of Yellowstone National Park in 2003 1 by David Prangishvili, a researcher from the Molecular Biology of the Gene in Extremophiles Unit at the Institut Pasteur. (pasteur.fr)
Genomes4
  • We discuss the recent advances towards understanding the function and structure of the proteins encoded by the rudivirus genomes, their role in the virus life cycle, and outline the directions for further research on this model system. (pasteur.fr)
  • The family Fuselloviridae includes viruses with spindle-shaped virions and circular dsDNA genomes. (ictv.global)
  • Tristromaviridae is a family of viruses with linear, double-stranded DNA genomes of 16-18 kbp (Table 1. (ictv.global)
  • Notably, although abundant in archaeal genomes, to our knowledge, TA and hfq-like genes have not been previously found in archaeal plasmids or viruses. (pasteur.fr)
Thermophilic2
  • Activation of the MCM helicase from the thermophilic archaeon, Thermoplasma acidophilum by interactions with GINS and Cdc6-2. (uib.no)
  • The most numerous are viruses of thermophilic Archaea. (bepress.com)
Virology1
  • A challenge in virology is quantifying relative virulence ( V R ) between two (or more) viruses that exhibit different replication dynamics in a given susceptible host. (microbiologyresearch.org)
Sulfolobales1
Fuselloviridae1
Genome4
  • The circular double-stranded DNA genome of Acidianus two-tailed virus consists of 62 730 bp, and replication can be either lytic or lysogenic. (hal.science)
  • The linear dsDNA genome of Pyrobaculum filamentous virus 1 (PFV1) is 17,714 bp, includes 60 bp terminal inverted repeats, and is predicted to encode 39 proteins (Figure 2. (ictv.global)
  • A genome map of Pyrobaculum flamentous virus 1 compared with the partial genome map of the virus Thermoproteus tenax virus 1. (ictv.global)
  • The incompleteness of the Thermoproteus tenax virus 1 genome is illustrated by the broken line. (ictv.global)
Virion2
  • The spindle-shaped morphology represents a group of archaea-specific virion morphotypes. (hal.science)
  • A) Electron micrograph of a virion of negatively-stained Pyrobaculum filamentous virus 1, stained with 2% uranyl acetate. (ictv.global)
Anaerobic2
Acidianus2
  • Parc de Yellowstone (Etats-Unis) où vit le virus hyperthermophile Acidianus hospitalis Filamentous Virus 1. (pasteur.fr)
  • Acidianus hospitalis Filamentous Virus 1 lives in the bubbling pools of acid of Yellowstone National Park. (pasteur.fr)
Islandicus2
  • Scanning electron micrograph of Saccharolobus islandicus cells (light blue) infected with the lemon-shaped virus STSV2 (yellow). (pasteur.fr)
  • S. islandicus can play host to a number of plasmids and viruses which may be useful in developing tools for genetic analysis. (up.ac.za)
Pyrobaculum1
  • 2006. Characterization of dissimilatory Fe(III) versus NO3- reduction in the hyperthermophilic archaeon Pyrobaculum aerophilum. . (umass.edu)
Environments1
  • Studies on viruses infecting archaea living in the most extreme environments continue to show a remarkable diversity of structures, suggesting that the sampling continues to be very sparse. (hal.science)
Prangishvili1
  • This virus is therefore very resistant and capable of surviving in adverse conditions ," explains David Prangishvili. (pasteur.fr)
Eukaryotes2
  • eukaryotes, and archaea: a conserved yet underappreciated aspect of microbial life. (appmicro.org)
  • Woese's (and his coworkers') insight that the archaea are as different from bacteria as bacteria are different from eukaryotes, was fundamental, and not universally accepted at first. (blogspot.com)
Taxonomy2
  • International Committee on Taxonomy of Viruses (ICTV). (wikipedia.org)
  • This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the taxonomy of the Bicaudaviridae which is available at www.ictv.global/report/bicaudaviridae. (hal.science)
Eubacteria1
Protein3
  • TP: Thermoproteus tenax virus 1 capsid protein. (ictv.global)
  • 13. Viruses have (AIPMT 2014) (a) DNA enclosed in a protein coat (b) prokaryotic nucleus (c) single chromosome (d) both DNA and RNA. (recruitmenttopper.com)
  • 2012. Comparative analysis of virus-host interactomes with a mammalian high-throughput protein complementation assay based on Gaussia princeps luciferase . (umass.edu)
Genes3
  • The genes shared by both viruses are connected by green shading, and the identity between the corresponding proteins is indicated. (ictv.global)
  • Many of the genes have been acquired from other bacteria and viruses. (kenyon.edu)
  • In parallel studies, genes encoding DNA-repair proteins specific for hyperthermophilic archea, were shown to be related to CRISPR, and were later defined as the cas (CRISPR-associated) genes (6). (idcmjournal.org)
Virions2
  • Similar levels of neutralization were observed under both assay conditions, suggesting that the interaction between virus and target cells sensitizes the virions for neutralization via bNAbs. (bvsalud.org)
  • Attempts to understand the masking mechanism led to the revelation that interaction between virus and host cells is needed to sensitize the virions for neutralization by broadly neutralizing antibodies (bNAbs). (bvsalud.org)
Complexes1
  • Deciphering the role of large ATP-independent peptidases complexes in extremophilic Archaea . (ibs.fr)
Reveal1
  • Beyer HM, Mikula KM, Kudling TV, Iwaï H. Crystal structures of CDC21-1 inteins from hyperthermophilic archaea reveal the selection mechanism for the highly conserved homing endonuclease insertion site. (helsinki.fi)
Isolation1
  • Direct isolation without enrichment has not yet been successful for viruses of extreme thermophiles. (bepress.com)
Differential1
  • We showcase the detection of SARS-CoV-2 in complex media as well as an assay for the Norovirus and Zika virus as an early developmental milestone toward high-throughput, single-step diagnostic kits for differential diagnosis of multiple respiratory viruses and any other emerging diagnostic needs. (bvsalud.org)
Replication1
Membrane1
  • Recent technological advances, particularly in cryo-electron microscopy, have led us to discover that the virus is protected by a type of membrane that has never been seen before. (pasteur.fr)
Prokaryotic1
  • They can be found very early in Earth's fossil records (about 3.25 billion years ago) as both Archaea and Bacteria, and commonly protect prokaryotic cells by providing them with homeostasis, encouraging the development of complex interactions between the cells in the biofilm. (wikipedia.org)
Interactions1
  • Host growth curve analysis is often used to mathematically characterize virus-host interactions and to quantify the magnitude of detriment to host due to viral infection. (microbiologyresearch.org)
ICTV1
  • It is a proposed family of the realm Varidnaviria, but ICTV officially puts it as incertae sedis virus. (wikipedia.org)
Insight1
Viral1
  • IMPORTANCE The human immunodeficiency virus (HIV-1) envelope (Env) glycoprotein mediates viral entry and is the sole target of neutralizing antibodies. (bvsalud.org)
Envelope2
  • All living cells, as well as many viruses, are enclosed in a lipid-containing envelope. (pasteur.fr)
  • Two types are known but this one is completely new - "T he outer envelope of the virus is half as thick as known cell membranes but it is surprisingly stable. (pasteur.fr)
Characteristics1
  • The capsid proteins of these viruses and their characteristics are of evolutionary importance for the origin of the other Varidnaviria viruses since they seem to retain primordial characters. (wikipedia.org)
Domain1
  • I would also like to draw your attention to Jon Eisen's analysis of Woese's original journal articles that explored the possibility of a Third Domain of life: the archaea. (blogspot.com)
Extreme1
  • "To understand how this type of virus is able to resist such extreme conditions, we needed to analyze its structure at atomic level, continues the scientist. (pasteur.fr)
Particles1
  • However, many cross-reactive conserved epitopes are often occluded on virus particles, contributing to the evasion of humoral immunity. (bvsalud.org)
Life1
  • One way of augmenting the knowledge base and thereby shedding more light on this issue is to study the relevance of horizontal gene transfer during the evolution of the pre-last universal cellular ancestor, up to the point of emergence of the two domains of life, namely Archaea and Bacteria, with Eukarya being the chimera of the first two [2,3]. (norcel.net)
Studies2
  • In the present review, we summarize the current knowledge on one of the emerging model systems for studies on crenarchaeal viruses, the Rudiviridae. (pasteur.fr)
  • Previous studies have suggested that DNA is in the B-form in bacteriophages, and our study is a direct visualization of the structure of DNA in an icosahedral virus. (hal.science)