Results 41 to 50 of about 831 (139)

Species-specific surface dwell times and accumulation of microbes investigated by holographic microscopy. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci
Microscopic swimmers, such as bacteria and archaea, are paradigmatic examples of active matter systems. The study of these systems has given rise to novel concepts such as rectification of bacterial swimmers, in which microstructures can ...
Brock EE   +4 more
europepmc   +3 more sources

The Phosphatase PP2A Interacts With ArnA and ArnB to Regulate the Oligomeric State and the Stability of the ArnA/B Complex

open access: yesFrontiers in Microbiology, 2020
In the crenarchaeon Sulfolobus acidocaldarius, the archaellum, a type-IV pilus like motility structure, is synthesized in response to nutrient starvation. Synthesis of components of the archaellum is controlled by the archaellum regulatory network (arn).
Xing Ye   +10 more
doaj   +1 more source

Putative Extracellular Electron Transfer in Methanogenic Archaea

open access: yesFrontiers in Microbiology, 2021
It has been suggested that a few methanogens are capable of extracellular electron transfers. For instance, Methanosarcina barkeri can directly capture electrons from the coexisting microbial cells of other species.
Kailin Gao, Yahai Lu
doaj   +1 more source

Viral Hijack of Filamentous Surface Structures in Archaea and Bacteria

open access: yesViruses, 2021
The bacterial and archaeal cell surface is decorated with filamentous surface structures that are used for different functions, such as motility, DNA exchange and biofilm formation. Viruses hijack these structures and use them to ride to the cell surface
Colin Tittes   +2 more
doaj   +1 more source

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

Structure of the archaeal chemotaxis protein CheY in a domain-swapped dimeric conformation [PDF]

open access: yes, 2010
Archaea are motile by the rotation of the archaellum. The archaellum switches between clockwise and counterclockwise rotation, and movement along a chemical gradient is possible by modulation of the switching frequency.
Paithankar, K.   +8 more
core   +7 more sources

N-glycosylation in the thermoacidophilic archaeon Sulfolobus acidocaldarius involves a short dolichol pyrophosphate carrier [PDF]

open access: yes, 2016
N-glycosylation is a post-translational modification that occurs across evolution. In the thermoacidophilic archaea Sulfolobus acidocaldarius, glycoproteins are modified by an N-linked tribranched hexasaccharide reminiscent of the N-glycans assembled in ...
Abu-Qarn   +38 more
core   +3 more sources

ArlCDE form the archaeal switch complex [PDF]

open access: yes, 2020
Cells require a sensory system and a motility structure to achieve directed movement. Bacteria and archaea both possess rotating filamentous motility structures that work in concert with the sensory chemotaxis system.
Albers, S   +3 more
core   +1 more source

Mutations Affecting HVO_1357 or HVO_2248 Cause Hypermotility in Haloferax volcanii, Suggesting Roles in Motility Regulation [PDF]

open access: yes, 2021
Motility regulation plays a key role in prokaryotic responses to environmental stimuli. Here, we used a motility screen and selection to isolate hypermotile Haloferax volcanii mutants from a transposon insertion library.
Afolayan, S.   +8 more
core   +2 more sources

Dark matter in archaeal genomes: a rich source of novel mobile elements, defense systems and secretory complexes [PDF]

open access: yes, 2014
International audienceMicrobial genomes encompass a sizable fraction of poorly characterized, narrowly spread fast-evolving genes. Using sensitive methods for sequences comparison and protein structure prediction, we performed a detailed comparative ...
David Prangishvili   +5 more
core   +2 more sources

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