Results 71 to 80 of about 7,405 (197)

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, Volume 599, Issue 23, Page 3417-3443, December 2025.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

An AGT-based protein-tag system for the labelling and surface immobilization of enzymes on E. coli outer membrane

Journal of Enzyme Inhibition and Medicinal Chemistry, 2019
The use of natural systems, such as outer membrane protein A (OmpA), phosphoporin E (PhoE), ice nucleation protein (INP), etc., has been proved very useful for the surface exposure of proteins on the outer membrane of Gram-negative bacteria.
Rosa Merlo, Sonia Del Prete, Anna Valenti, Rosanna Mattossovich, Vincenzo Carginale, Claudiu T. Supuran, Clemente Capasso, Giuseppe Perugino   +7 more
doaj   +1 more source

Groundwater Microbial Diversity Associated With Icelandic Basaltic Subsurface Environments

Environmental Microbiology Reports, Volume 17, Issue 6, December 2025.
Overview of microbial diversity and environmental drivers in Icelandic deep basaltic aquifers. Using 16S rRNA gene metabarcoding across 22 geothermal wells spanning broad temperature, pH, and bedrock‐age gradients, the study reveals distinct bacterial and archaeal community structures shaped by temperature, pH, and host‐rock reactivity.
Juliette Bas‐Lorillot, Bénédicte Ménez, Bastien Wild, Guillaume Borrel, Manon Le Bihan, Andri Stefánsson, Jóhann Gunnarsson‐Robin, Anna Bríet Bjarkadóttir, Sigríður María Aðalsteinsdóttir, Delphine Tisserand, Damien Daval, Emmanuelle Gérard   +11 more
wiley   +1 more source

Activation of SsoPK4, an Archaeal eIF2α Kinase Homolog, by Oxidized CoA

Proteomes, 2015
The eukaryotic protein kinase (ePK) paradigm provides integral components for signal transduction cascades throughout nature. However, while so-called typical ePKs permeate the Eucarya and Bacteria, atypical ePKs dominate the kinomes of the Archaea ...
William K. Ray, Mark B. Potters, January D. Haile, Peter J. Kennelly   +3 more
doaj   +1 more source

The dynamic interplay of host and viral enzymes in type III CRISPR-mediated cyclic nucleotide signalling

eLife, 2020
Cyclic nucleotide second messengers are increasingly implicated in prokaryotic anti-viral defence systems. Type III CRISPR systems synthesise cyclic oligoadenylate (cOA) upon detecting foreign RNA, activating ancillary nucleases that can be toxic to ...
Januka S Athukoralage, Shirley Graham, Christophe Rouillon, Sabine Grüschow, Clarissa M Czekster, Malcolm F White   +5 more
doaj   +1 more source

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

MicrobiologyOpen, 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, Ronnie Willaert, Yannick Gansemans, Filip Van Nieuwerburgh, Rani Baes, Eveline Peeters   +5 more
wiley   +1 more source

Alterations of the transcriptome of Sulfolobus acidocaldarius by exoribonuclease aCPSF2.

PLoS 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, Fabian Amman, Salim Manoharadas, Lukas Zeichen, Alvaro Orell, Sonja-Verena Albers, Ivo Hofacker, Udo Bläsi   +7 more
doaj   +1 more source

Quantifying Soil Microbiome Abundance by Metatranscriptomics and Complementary Molecular Techniques—Cross‐Validation and Perspectives

Molecular Ecology Resources, Volume 25, Issue 7, October 2025.
ABSTRACT Linking meta‐omics and biogeochemistry approaches in soils has remained challenging. This study evaluates the use of an internal RNA extraction standard and its potential for making quantitative estimates of a given microbial community size (biomass) in soil metatranscriptomics. We evaluate commonly used laboratory protocols for RNA processing,
Mathilde Borg Dahl, Stella Brachmann, Andrea Söllinger, Marina Schnell, Laureen Ahlers, Magdalena Wutkowska, Katharina J. Hoff, Neetika Nath, Verena Groß, Haitao Wang, Micha Weil, Marc Piecha, Marc Schaffer, Corinna Jensen, Andreas W. Kuss, Christoph Gall, Erika Wimmer, Thomas Pribasnig, Alexander Tøsdal Tveit, Bjarni D. Sigurdsson, Christa Schleper, Andreas Richter, Tim Urich   +22 more
wiley   +1 more source

Sulfolobus solfataricus

, 2013
Raw data files of Sulfolobus solfataricus<strong>Tilt Series Date:</strong> 2013-11-14</p> <strong>Data Taken By:</strong> Rasika Ramdasi</p> <strong>Species / Specimen:</strong> Sulfolobus solfataricus</
Ramdasi, Rasika
core   +3 more sources

Characterization of a hyperthermophilic sulphur-oxidizing biofilm produced by archaea isolated from a hot spring

Electronic Journal of Biotechnology, 2017
Background: Sulphur-oxidizing microorganisms are widely used in the biofiltration of total reduced sulphur compounds (odorous and neurotoxic) produced by industries such as the cellulose and petrochemical industries, which include high-temperature ...
Emky Valdebenito-Rolack, Nathaly Ruiz-Tagle, Leslie Abarzúa, Germán Aroca, Homero Urrutia   +4 more
doaj   +1 more source