Results 1 to 10 of about 31,855 (236)

Diversity and subcellular distribution of archaeal secreted proteins [PDF]

open access: yesFrontiers in Microbiology, 2012
Secreted proteins make up a significant percentage of a prokaryotic proteome and play critical roles in important cellular processes such as polymer degradation, nutrient uptake, signal transduction, cell wall biosynthesis and motility.
Mechthild ePohlschroder, Zalán eSzabó
doaj   +4 more sources

The archaeo-eukaryotic GINS proteins and the archaeal primase catalytic subunit PriS share a common domain [PDF]

open access: yesBiology Direct, 2010
Primase and GINS are essential factors for chromosomal DNA replication in eukaryotic and archaeal cells. Here we describe a previously undetected relationship between the C-terminal domain of the catalytic subunit (PriS) of archaeal primase and the B ...
Swiatek Agnieszka, MacNeill Stuart A
doaj   +2 more sources

Discovery of archaeal fusexins homologous to eukaryotic HAP2/GCS1 gamete fusion proteins

open access: yesNature Communications, 2022
Sexual reproduction in eukaryotes involves gamete fusion, mediated by fusogenic proteins. Here, the authors identify fusogenic protein homologs encoded within mobile genetic elements in archaeal genomes, solve the crystal structure of one of the proteins,
David Moi   +15 more
doaj   +2 more sources

Asgard archaea: have we found our microbial ancestors? [PDF]

open access: yesThe EMBO Journal
The discovery of Asgard archaea about a decade ago has greatly reshaped our understanding of archaeal evolution and the origin of eukaryotes. Asgards are currently thought to be the closest prokaryotic relatives of eukaryotes and to represent the ...
Christa Schleper   +1 more
doaj   +2 more sources

Histone diversity in the archaeal domain of life [PDF]

open access: yesNature Communications
Two-thirds of all archaea encode histones, proteins that are ubiquitously used to structure chromatin in eukaryotes. Archaeal histone sequences are less conserved than their eukaryotic counterparts, and insight into how they structure DNA is limited to a
Shawn P. Laursen, Karolin Luger
doaj   +2 more sources

The enigmatic archaeal virosphere

open access: yesNature Reviews Microbiology, 2017
International audienceOne of the most prominent features of archaea is the extraordinary diversity of their DNA viruses. Many archaeal viruses differ substantially in morphology from bacterial and eukaryotic viruses and represent unique virus families ...
David Prangishvili   +2 more
exaly   +2 more sources

Idiosyncratic evolution of conserved eukaryote proteins that are similar in sequence to archaeal or bacterial proteins

open access: yesNature Precedings, 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, Britten, Roy J.
exaly   +2 more sources

Minimal Yet Powerful: The Role of Archaeal Small Heat Shock Proteins in Maintaining Protein Homeostasis

open access: yesFrontiers in Molecular Biosciences, 2022
Small heat shock proteins (sHsp) are a ubiquitous group of ATP-independent chaperones found in all three domains of life. Although sHsps in bacteria and eukaryotes have been studied extensively, little information was available on their archaeal homologs
Mousam Roy   +2 more
doaj   +1 more source

Evolutionary conservation of ubiquitin-like protein urmylation as revealed by URM1 gene shuffle from archaea to yeast [PDF]

open access: yesCommunications Biology
Urm1 from yeast is a unique ubiquitin-like protein with dual functionality. It has been shown to operate in tRNA thiolation and protein urmylation, combining features typical of bacterial sulfur carriers and classical ubiquitin-like modifiers.
Katharina Zupfer   +4 more
doaj   +2 more sources

Comprehensive Bioinformatics Analysis of the Biodiversity of Lsm Proteins in the Archaea Domain

open access: yesMicroorganisms, 2023
The Sm protein superfamily includes Sm, like-Sm (Lsm), and Hfq proteins. Sm and Lsm proteins are found in the Eukarya and Archaea domains, respectively, while Hfq proteins exist in the Bacteria domain.
Gloria Payá   +4 more
doaj   +1 more source

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