Results 41 to 50 of about 6,413 (224)

First Isolation and Structure Elucidation of GDNT‐β‐Glu – Tetraether Lipid Fragment from Archaeal Sulfolobus Strains

ChemistryOpen, 2021
Due to their special chemical structure, tetraether lipids (TEL) represent essential elements of archaeal membranes, providing these organisms with extraordinary properties.
Dr. Alexander Scholte, Christoph Hübner, Dr. Dieter Ströhl, Olaf Scheufler, Dr. Steffen Czich, Julia M. Börke, Dr. Gerhard Hildebrand, Prof. Dr. Klaus Liefeith   +7 more
doaj   +1 more source

Electron cryo-microscopy reveals the structure of the archaeal thread filament

Nature Communications, 2022
Pili are filamentous appendages on the surface of bacteria and archaea, and play roles in multiple processes such as adhesion, motility and horizontal gene transfer. Here, Gaines et al. describe the structure of a new type of pilus, termed ‘thread’, from
Matthew C. Gaines, Michail N. Isupov, Shamphavi Sivabalasarma, Risat Ul Haque, Mathew McLaren, Clara L. Mollat, Patrick Tripp, Alexander Neuhaus, Vicki A. M. Gold, Sonja-Verena Albers, Bertram Daum   +10 more
doaj   +1 more source

DNA-Interacting Characteristics of the Archaeal Rudiviral Protein SIRV2_Gp1 [PDF]

, 2016
Whereas the infection cycles of many bacterial and eukaryotic viruses have been characterized in detail, those of archaeal viruses remain largely unexplored.
Bingjie Wang (767714), Hao Zhou (136535), Hong Liu (50694), Jinhui Dai (561737), Shengjie Li (3340212), Shuai Liu (145969), Xiao Lin (20892), Xiaomei Qu (2636788), Xingtao Zhou (441471), Yi Wu (197719)   +9 more
core   +13 more sources

Species-Specific Recognition of Sulfolobales Mediated by UV-Inducible Pili and S-Layer Glycosylation Patterns

mBio, 2020
The UV-inducible pili system of Sulfolobales (Ups) mediates the formation of species-specific cellular aggregates. Within these aggregates, cells exchange DNA to repair DNA double-strand breaks via homologous recombination. Substitution of the Sulfolobus
Marleen van Wolferen, Asif Shajahan, Kristina Heinrich, Susanne Brenzinger, Ian M. Black, Alexander Wagner, Ariane Briegel, Parastoo Azadi, Sonja-Verena Albers   +8 more
doaj   +1 more source

Structural basis of RNA polymerase inhibition by viral and host factors

Nature Communications, 2021
Understanding the structural basis for the inhibition of archaeal eukaryotic-like RNA polymerases (RNAPs) during virus infection is of interest for drug design.
Simona Pilotto, Thomas Fouqueau, Natalya Lukoyanova, Carol Sheppard, Soizick Lucas-Staat, Luis Miguel Díaz-Santín, Dorota Matelska, David Prangishvili, Alan C. M. Cheung, Finn Werner   +9 more
doaj   +1 more source

Identification of a system required for the functional surface localization of sugar binding proteins with class III signal peptides in Sulfolobus solfataricus [PDF]

, 2007
The hyperthermophilic archaeon Sulfolobus solfataricus contains an unusual large number of sugar binding proteins that are synthesized as precursors with a class III signal peptide.
Albers S.V., Albers S.V., Albers S.V., Anantha R.P., Brass J.M., Brock T.D., Craig L., Pugsley A.P., Rolfsmeier M., Sandkvist M., Strom M.S., Szabo Z., Szabo Z.   +12 more
core   +9 more sources

Two membrane-bound transcription factors regulate expression of various type-IV-pili surface structures in Sulfolobus acidocaldarius [PDF]

PeerJ, 2019
In Archaea and Bacteria, gene expression is tightly regulated in response to environmental stimuli. In the thermoacidophilic crenarchaeon Sulfolobus acidocaldarius nutrient limitation induces expression of the archaellum, the archaeal motility structure.
Lisa Franziska Bischof, Maria Florencia Haurat, Sonja-Verena Albers   +2 more
doaj   +2 more sources

Identification of NAD-RNA species and ADPR-RNA decapping in Archaea

Nature Communications, 2023
NAD is a coenzyme central to metabolism that also serves as a 5′-terminal cap for bacterial and eukaryotic transcripts. Thermal degradation of NAD can generate nicotinamide and ADP-ribose (ADPR).
José Vicente Gomes-Filho, Ruth Breuer, Hector Gabriel Morales-Filloy, Nadiia Pozhydaieva, Andreas Borst, Nicole Paczia, Jörg Soppa, Katharina Höfer, Andres Jäschke, Lennart Randau   +9 more
doaj   +1 more source

Thermostable and O₂-Insensitive Pyruvate Decarboxylases from Thermoacidophilic Archaea Catalyzing the Production of Acetaldehyde

Biology, 2022
Pyruvate decarboxylase (PDC) is a key enzyme involved in ethanol fermentation, and it catalyzes the decarboxylation of pyruvate to acetaldehyde and CO2.
Faisal Alharbi, Thomas Knura, Bettina Siebers, Kesen Ma   +3 more
doaj   +1 more source

Evolutionary rates and gene dispensability associate with replication timing in the Archaeon Sulfolobus islandicus [PDF]

, 2010
In bacterial chromosomes, the position of a gene relative to the single origin of replication generally reflects its replication timing, how often it is expressed, and consequently, its rate of evolution.
Cooper, Vaughn S., Flynn, Kenneth M., Hatcher, Philip J., Vohr, Samuel H.   +3 more
core   +2 more sources