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
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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.
Sonja-Verena Albers, Bertram Daum
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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.
Lavinia Gambelli +2 more
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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 ...
Zlata Vershinin, Iris Grossman-Haham
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The archaellum: how archaea swim [PDF]
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 ...
Sonja-Verena Albers
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Structure and in situ organisation of the Pyrococcus furiosus archaellum machinery [PDF]
eLife, 2017 The archaellum is the macromolecular machinery that Archaea use for propulsion or surface adhesion, enabling them to proliferate and invade new territories.
Bertram Daum +7 more
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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 +4 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
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The infection cycle of the haloarchaeal virus HFTV1 is tightly regulated and strongly inhibits motility of its host [PDF]
mSystemsAlthough viruses have been shown to infect all domains of life, our understanding of the genetic program behind the exploitation of host resources to produce progeny virions is thus far limited to several bacterial viruses.
Sabine Schwarzer +7 more
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Cyclization of archaeal membrane lipids impacts membrane protein activity and archaellum formation [PDF]
Proceedings of the National Academy of Sciences of the United States of AmericaEnhancement of the cyclization of membrane lipids GDGTs (glycerol dialkyl glycerol tetraethers) is a critical strategy for archaea to adapt to various environmental stresses. However, the physiological function of membrane lipid cyclization remains unclear.
Xi Feng +2 more
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