Evidence for binary Smc complexes lacking kite subunits in archaea
IUCrJ, 2020 SMC complexes play a central role in chromosome organization in all domains of life. The bacterial Smc–ScpAB complex is a three-subunit complex composed of Smc, ScpA and ScpB.
Jae-Hyun Jeon +6 more
doaj +1 more source
Idiosyncratic evolution of conserved eukaryote proteins that are similar in sequence to archaeal or bacterial proteins [PDF]
, 2008 Sequence comparisons have been made between the proteins of 571 prokaryote species including 46 archaea and 525 bacteria and the set of human proteins.
Roy J. Britten
core +2 more sources
GDGT cyclization proteins identify the dominant archaeal sources of tetraether lipids in the ocean
Proceedings of the National Academy of Sciences of the United States of America, 2019 Significance Archaea synthesize distinctive membrane-spanning lipids (GDGTs) that are readily preserved in ancient sediments and utilized as paleotemperature proxies to reconstruct sea surface temperatures deep in Earth’s past.
Z. Zeng +6 more
semanticscholar +1 more source
Expansion of Thaumarchaeota habitat range is correlated with horizontal transfer of ATPase operons. [PDF]
, 2019 Thaumarchaeota are responsible for a significant fraction of ammonia oxidation in the oceans and in soils that range from alkaline to acidic. However, the adaptive mechanisms underpinning their habitat expansion remain poorly understood.
Bartlett, Douglas H +24 more
core +2 more sources
Archaeal Unfoldase Counteracts Protein Misfolding Retinopathy in Mice [PDF]
The Journal of Neuroscience, 2018 Deregulation of cellular proteostasis due to the failure of the ubiquitin proteasome system to dispose of misfolded aggregation-prone proteins is a hallmark of various neurodegenerative diseases in humans. Microorganisms have evolved to survive massive protein misfolding and aggregation triggered by heat shock using their protein-unfolding ATPases ...
Celine Brooks +6 more
openaire +2 more sources
Frontiers in Microbiology, 2021 Histone proteins compact and organize DNA resulting in a dynamic chromatin architecture impacting DNA accessibility and ultimately gene expression. Eukaryotic chromatin landscapes are structured through histone protein variants, epigenetic marks, the ...
Travis J. Sanders +8 more
doaj +1 more source
The archaeal ATPase PINA interacts with the helicase Hjm via its carboxyl terminal KH domain remodeling and processing replication fork and Holliday junction. [PDF]
, 2018 PINA is a novel ATPase and DNA helicase highly conserved in Archaea, the third domain of life. The PINA from Sulfolobus islandicus (SisPINA) forms a hexameric ring in crystal and solution.
Ahmad, Sohail +9 more
core +1 more source
Archaeal proteins Nop10 and Gar1 increase the catalytic activity of Cbf5 in pseudouridylating tRNA
Scientific Reports, 2012 Cbf5 is a pseudouridine synthase that usually acts in a guide RNA-dependent manner as part of H/ACA small ribonucleoproteins; however archaeal Cbf5 can also act independently of guide RNA in modifying uridine 55 in tRNA.
Rajashekhar Kamalampeta, Ute Kothe
semanticscholar +1 more source
Sequence Analysis and Comparative Study of the Protein Subunits of Archaeal RNase P
Biomolecules, 2016 RNase P, a ribozyme-based ribonucleoprotein (RNP) complex that catalyzes tRNA 5′-maturation, is ubiquitous in all domains of life, but the evolution of its protein components (RNase P proteins, RPPs) is not well understood.
Manoj P. Samanta +3 more
doaj +1 more source
Insights into the Ecological Roles and Evolution of Methyl-Coenzyme M Reductase-Containing Hot Spring Archaea [PDF]
, 2019 Several recent studies have shown the presence of genes for the key enzyme associated with archaeal methane/alkane metabolism, methyl-coenzyme M reductase (Mcr), in metagenome-assembled genomes (MAGs) divergent to existing archaeal lineages.
Chen, Ya-Ting +17 more
core +3 more sources