Results 81 to 90 of about 5,681 (181)

Protein phosphorylation and its role in archaeal signal transduction [PDF]

open access: yes, 2016
Reversible protein phosphorylation is the main mechanism of signal transduction that enables cells to rapidly respond to environmental changes by controlling the functional properties of proteins in response to external stimuli. However, whereas signal
Alain Filloux   +28 more
core   +1 more source

Dinucleoside Polyphosphates in Cellular Signaling: Function and Evolution Across Life

open access: yesBioEssays, Volume 47, Issue 10, October 2025.
Although discovered more than 50 years ago, the cellular functions of Ap4A and related dinucleotides remain largely enigmatic. To address this knowledge gap, we organized a conference showcasing recent research that highlights the critical role of Ap4A as a global regulator across all domains of life.
Gert Bange   +5 more
wiley   +1 more source

Purification of glycerol dialkyl nonitol tetraether from Sulfolobus acidocaldarius.

open access: yesJournal of Lipid Research, 1989
A modified procedure for extraction and purification of hydrolyzed archaebacterial lipids is described. Lipids were extracted from Sulfolobus acidocaldarius using a Soxhlet extraction procedure followed by trichloroacetic acid solvent-extraction of the ...
S L Lo, C E Montague, E L Chang
doaj   +1 more source

The Lrs14‐Like AbfR1 Homolog From Metallosphaera sedula Is a Nucleoid‐Organizing Protein

open access: yesMicrobiologyOpen, Volume 14, Issue 5, October 2025.
Nucleoid organization in Crenarchaeota involves diverse small DNA‐binding proteins. The Lrs14‐type protein AbfR1 from Metallosphaera sedula binds nonsequence specifically across the genome and induces DNA condensation. These findings suggest a structural role for AbfR1Ms in chromatin architecture, functionally resembling bacterial nucleoid‐associated ...
Veerke De Kock   +5 more
wiley   +1 more source

L7Ae- und LSm-RNA-Interaktome von Sulfolobus acidocaldarius

open access: yes, 2017
Die archaealen Proteine L7Ae und LSm (Sm-ähnliche Proteine) sind universelle RNA-Bindeproteine. L7Ae stabilisiert nicht-kodierende RNAs, einschließlich ribosomaler RNA, durch Erkennung eines RNA-Strukturmotivs, namens „kink-turn“ (k-turn). Proteine der Sm-Familie, wie die bakteriellen Hfq und die eukaryotischen Sm/LSm-Proteine, sind an multiplen RNA ...
Daume, Michael, Randau, Lennart (Dr.)
openaire   +3 more sources

Alterations of the transcriptome of Sulfolobus acidocaldarius by exoribonuclease aCPSF2.

open access: yesPLoS ONE, 2013
Recent studies identified a 5´ to 3´ exoribonuclease termed Sso-RNase J in the crenarchaeon Sulfolobus solfataricus (Sso), which has been reclassified to the aCPSF2 (archaeal cleavage and polyadenylation specificity factor 2) group of β-CASP proteins. In
Birgit Märtens   +7 more
doaj   +1 more source

Display of the peroxiredoxin Bcp1 of Sulfolobus solfataricus on probiotic spores of Bacillus megaterium. [PDF]

open access: yes, 2018
Bacterial spores displaying heterologous proteins have been proposed as a safe and efficient method for delivery of antigens and enzymes to animal mucosal surfaces.
Donadio, Giuliana   +6 more
core   +1 more source

Characterisation of a Self‐Sufficient Cytochrome P450 Enzyme From the Bacterium Thermosporothrix hazakensis and Its Conversion Into a Peroxygenase

open access: yesMicrobial Biotechnology, Volume 18, Issue 10, October 2025.
A cytochrome P450 enzyme from the thermophile Thermosporothrix hazakensis was characterised. We modified the heme domain of the enzyme through protein engineering to enable it to function as a peroxygenase biocatalyst. We demonstrated the oxidation of fatty acids and aromatic compounds and identified the metabolites.
Matthew N. Podgorski   +4 more
wiley   +1 more source

Energy flux controls tetraether lipid cyclization in Sulfolobus acidocaldarius [PDF]

open access: yesEnvironmental Microbiology, 2019
Summary Microorganisms regulate the composition of their membranes in response to environmental cues. Many Archaea maintain the fluidity and permeability of their membranes by adjusting the number of cyclic moieties within the cores of their glycerol dibiphytanyl glycerol tetraether (GDGT) lipids.
Alice Zhou   +6 more
openaire   +3 more sources

Prediction of the replication origin in prokaryotic genomes [PDF]

open access: yes, 2016
Táto bakalárska práca sa zaoberá problematikou detekcie replikačných počiatkov (oriC) v genómoch prokaryotických organizmov. Popisuje rozdiely v procesoch iniciácie replikácie u organizmov dvoch domén prokaryotických organizmov – Bacteria a Archea ...
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