Results 21 to 30 of about 102,839 (240)

The cell biology of archaea

Nature Microbiology, 2022
The past decade has revealed the diversity and ubiquity of archaea in nature, with a growing number of studies highlighting their importance in ecology, biotechnology and even human health. Myriad lineages have been discovered, which expanded the phylogenetic breadth of archaea and revealed their central role in the evolutionary origins of eukaryotes ...
van Wolferen, Marleen, Pulschen, Andre Arashiro, Baum, Buzz, Gribaldo, Simonetta, Albers, Sonja-Verena   +4 more
openaire   +4 more sources

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

mLife, 2023
Kinase, putative Endopeptidase, and Other Proteins of Small size (KEOPS) is a multisubunit protein complex conserved in eukaryotes and archaea.
Pengju Wu, Qi Gan, Xuemei Zhang, Yunfeng Yang, Yuanxi Xiao, Qunxin She, Jinfeng Ni, Qihong Huang, Yulong Shen   +8 more
doaj   +1 more source

Archaeal GPN-loop GTPases involve a lock-switch-rock mechanism for GTP hydrolysis

mBio, 2023
Three GPN-loop GTPases, GPN1–GPN3, are central to the maturation and trafficking of eukaryotic RNA polymerase II. This GTPase family is widely represented in archaea but typically occurs as single paralogs.
Lukas Korf, Xing Ye, Marian S. Vogt, Wieland Steinchen, Mohamed Watad, Chris van der Does, Maxime Tourte, Shamphavi Sivabalasarma, Sonja-Verena Albers, Lars-Oliver Essen   +9 more
doaj   +1 more source

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

mBio, 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, Jessica A. Kozlowski, Robert W. Murdoch, Frank E. Löffler, Filipa L. Sousa, Christa Schleper   +5 more
doaj   +1 more source

The canonical single-stranded DNA-binding protein is not an essential replication factor but an RNA chaperon in Saccharolobus islandicus

iScience, 2023
Summary: Single-stranded DNA-binding proteins (SSBs) have been regarded as indispensable replication factors. Herein, we report that the genes encoding the canonical SSB (SisSSB) and the non-canonical SSB (SisDBP) in Saccharolobus islandicus REY15A are ...
Yuanxi Xiao, Zhichao Jiang, Mengqi Zhang, Xuemei Zhang, Qi Gan, Yunfeng Yang, Pengju Wu, Xu Feng, Jinfeng Ni, Xiuzhu Dong, Qunxin She, Qihong Huang, Yulong Shen   +12 more
doaj   +1 more source

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

Nature 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, Leonhard Jakob, Kevin Kramm, Veronika Graus, Julia Neumeier, Gunter Meister, Dina Grohmann   +6 more
doaj   +1 more source

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

Life, 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, Shiraz A. Shah, Susanne Erdmann, Guannan Liu, Marzieh Mousaei, Carlos León-Sobrino, Wenfang Peng, Soley Gudbergsdottir, Ling Deng, Gisle Vestergaard, Xu Peng, Qunxin She   +11 more
doaj   +1 more source

Hyperthermophilic methanogenic archaea act as high-pressure CH4 cell factories

Communications Biology, 2021
Mauerhofer et al. examine 80 species of methanogenic archaea at high pressures and evaluate growth and methane production, identifying Methanotorris igneus and Methanocaldococcoccus jannaschii as high-pressure methane cell factories.
Lisa-Maria Mauerhofer, Sara Zwirtmayr, Patricia Pappenreiter, Sébastien Bernacchi, Arne H. Seifert, Barbara Reischl, Tilman Schmider, Ruth-Sophie Taubner, Christian Paulik, Simon K.-M. R. Rittmann   +9 more
doaj   +1 more source

Community dynamics of archaea in an estuarine river water column and implications for archaeal biogeochemistry

, 2022
Shah Walter, SunitaIn the past three decades, it has been established that archaea play important biogeochemical roles in the marine water column and sediments, but there remains a gap in knowledge about the phenology of these marine planktic archaea ...
Guider, Justin
core   +1 more source

DPANN archaea [PDF]

Current Biology
Archaea are one of the two primary domains of life alongside Bacteria. Extant archaea play an important role in global nutrient cycles and comprise members that were crucial for the evolution of life on Earth including the origin of eukaryotic cells through a symbiotic integration of an archaeal and bacterial partner.
Huang, W.-C., Spang, A.
openaire   +2 more sources