Towards Elucidating the Rotary Mechanism of the Archaellum Machinery [PDF]
Frontiers in Microbiology, 2022 Motile archaea swim by means of a molecular machine called the archaellum. This structure consists of a filament attached to a membrane-embedded motor.
Bertram Daum +2 more
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How Did the Archaellum Get Its Rotation? [PDF]
Frontiers in Microbiology, 2022 How new functions evolve fascinates many evolutionary biologists. Particularly captivating is the evolution of rotation in molecular machines, as it evokes familiar machines that we have made ourselves. The archaellum, an archaeal analog of the bacterial
Morgan Beeby, Beeby Morgan
exaly +4 more sources
An archaellum filament composed of two alternating subunits [PDF]
Nature Communications, 2022 The archaellum is a molecular machine used by archaea to swim, consisting of an intracellular motor that drives the rotation of an extracellular filament composed of multiple copies of proteins named archaellins.
Reinhard Rachel +2 more
exaly +3 more sources
Perturbed N-glycosylation of Halobacterium salinarum archaellum filaments leads to filament bundling and compromised cell motility [PDF]
Nature CommunicationsThe swimming device of archaea—the archaellum—presents asparagine (N)-linked glycans. While N-glycosylation serves numerous roles in archaea, including enabling their survival in extreme environments, how this post-translational modification contributes ...
Iris Grossman-Haham +2 more
exaly +3 more sources
The transcriptional regulator EarA and intergenic terminator sequences modulate archaellation in Pyrococcus furiosus [PDF]
Frontiers in Microbiology, 2023 The regulation of archaellation, the formation of archaeal-specific cell appendages called archaella, is crucial for the motility, adhesion, and survival of archaeal organisms.
Richard Stöckl +5 more
doaj +2 more sources
Phosphorylation-driven conformational switching of the ArnA–ArnB complex involved in archaeal motility regulation [PDF]
Frontiers in MicrobiologyArnA and ArnB serve as regulators within the Sulfolobus archaellum regulatory network by modulating the archaellum components ArlB and ArlX, which are essential for swimming motility.
Mohamed Watad +14 more
doaj +2 more sources
Stay or Go: Sulfolobales Biofilm Dispersal Is Dependent on a Bifunctional VapB Antitoxin [PDF]
mBio, 2023 A type II VapB14 antitoxin regulates biofilm dispersal in the archaeal thermoacidophile Sulfolobus acidocaldarius through traditional toxin neutralization but also through noncanonical transcriptional regulation.
April M. Lewis +5 more
doaj +2 more sources
The archaellum: how archaea swim
Frontiers in Microbiology, 2015 Recent studies on archaeal motility have shown that the archaeal motility structure is unique in several aspects as, although it fulfills the same swimming function as the bacterial flagellum, it is evolutionary and structurally related to the type IV ...
Ken Jarrell +2 more
exaly +3 more sources
How Does the Archaellum Work? [PDF]
BiomoleculesThe archaellum is the simplest known molecular propeller. An analogue of bacterial flagella, archaella are long helical tails found in Archaea that are rotated by cell-envelope-embedded rotary motors to exert thrust for cell motility.
Morgan Beeby, Bertram Daum
doaj +2 more sources
Transcriptome profiling of Nudix hydrolase gene deletions in the thermoacidophilic archaeon Sulfolobus acidocaldarius [PDF]
Frontiers in Microbiology, 2023 Nudix hydrolases comprise a large and ubiquitous protein superfamily that catalyzes the hydrolysis of a nucleoside diphosphate linked to another moiety X (Nudix).
Ruth Breuer +5 more
doaj +2 more sources