Results 21 to 30 of about 106,556 (213)

Anti-CRISPR-Based and CRISPR-Based Genome Editing of Sulfolobus islandicus Rod-Shaped Virus 2

open access: yesViruses, 2018
Genetic engineering of viruses has generally been challenging. This is also true for archaeal rod-shaped viruses, which carry linear double-stranded DNA genomes with hairpin ends.
David Mayo-Muñoz   +5 more
doaj   +1 more source

Minimum information about a single amplified genome (MISAG) and a metagenome-assembled genome (MIMAG) of bacteria and archaea

open access: yesNature Biotechnology, 2017
We present two standards developed by the Genomic Standards Consortium (GSC) for reporting bacterial and archaeal genome sequences. Both are extensions of the Minimum Information about Any (x) Sequence (MIxS).
R. M. Bowers   +53 more
semanticscholar   +1 more source

Ubiquity and diversity of ammonia-oxidizing archaea in water columns and sediments of the ocean.

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2005
Nitrification, the microbial oxidation of ammonia to nitrite and nitrate, occurs in a wide variety of environments and plays a central role in the global nitrogen cycle.
C. A. Francis   +4 more
semanticscholar   +1 more source

Metagenomes from Coastal Marine Sediments Give Insights into the Ecological Role and Cellular Features of Loki- and Thorarchaeota

open access: yesmBio, 2019
The genomes of Asgard Archaea, a novel archaeal proposed superphylum, share an enriched repertoire of eukaryotic signature genes and thus promise to provide insights into early eukaryote evolution.
Lokeshwaran Manoharan   +5 more
doaj   +1 more source

The archaeal KEOPS complex possesses a functional Gon7 homolog and has an essential function independent of the cellular t6A modification level

open access: yesmLife, 2023
Kinase, putative Endopeptidase, and Other Proteins of Small size (KEOPS) is a multisubunit protein complex conserved in eukaryotes and archaea.
Pengju Wu   +8 more
doaj   +1 more source

A Genus Definition for Bacteria and Archaea Based on a Standard Genome Relatedness Index

open access: yesmBio, 2020
In recent decades, the taxonomy of Bacteria and Archaea, and therefore genus designation, has been largely based on the use of a single ribosomal gene, the 16S rRNA gene, as a taxonomic marker. We propose an approach to delineate genera that excludes the
R. Barco   +6 more
semanticscholar   +1 more source

Ancestral Reconstructions Decipher Major Adaptations of Ammonia-Oxidizing Archaea upon Radiation into Moderate Terrestrial and Marine Environments

open access: yesmBio, 2020
Unlike all other archaeal lineages, ammonia-oxidizing archaea (AOA) of the phylum Thaumarchaeota are widespread and abundant in all moderate and oxic environments on Earth. The evolutionary adaptations that led to such unprecedented ecological success of
Sophie S. Abby   +2 more
doaj   +1 more source

CRISPR-Cas Adaptive Immune Systems of the Sulfolobales: Unravelling Their Complexity and Diversity

open access: yesLife, 2015
The Sulfolobales have provided good model organisms for studying CRISPR-Cas systems of the crenarchaeal kingdom of the archaea. These organisms are infected by a wide range of exceptional archaea-specific viruses and conjugative plasmids, and their ...
Roger A. Garrett   +11 more
doaj   +1 more source

Putative Nucleotide-Based Second Messengers in the Archaeal Model Organisms Haloferax volcanii and Sulfolobus acidocaldarius

open access: yesFrontiers in Microbiology, 2021
Research on nucleotide-based second messengers began in 1956 with the discovery of cyclic adenosine monophosphate (3′,5′-cAMP) by Earl Wilbur Sutherland and his co-workers.
Frank Braun   +4 more
doaj   +1 more source

Single-molecule FRET uncovers hidden conformations and dynamics of human Argonaute 2

open access: yesNature Communications, 2022
Single-molecule FRET measurements provide detailed insights into the conformational states and dynamics of human Argonaute 2 that are required for its function at the core of the eukaryotic RNA silencing pathway.
Sarah Willkomm   +6 more
doaj   +1 more source

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