The switch complex ArlCDE connects the chemotaxis system and the archaellum. [PDF]
Mol Microbiol, 2020 The bacterial‐like chemotaxis system is essential for directional movement in Archaea. So far, it was unknown how the signal is transferred from the archaeal CheY protein to the archaellum motor to initiate motor switching. In this study, we demonstrate that the proteins ArlCDE represent the archaellum switch complex, which is the docking point for the
Li Z +3 more
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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 eAlbers, Ken F. Jarrell
doaj +6 more sources
N-Glycosylation Is Important for Halobacterium salinarum Archaellin Expression, Archaellum Assembly and Cell Motility [PDF]
Frontiers in Microbiology, 2019 Halobacterium salinarum are halophilic archaea that display directional swimming in response to various environmental signals, including light, chemicals and oxygen. In Hbt. salinarum, the building blocks (archaellins) of the archaeal swimming apparatus (
Marianna Zaretsky +4 more
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Cyclization of archaeal membrane lipids impacts membrane protein activity and archaellum formation. [PDF]
Proc Natl Acad Sci U S AEnhancement 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.
Yang W +6 more
europepmc +4 more sources
Structure of a functional archaellum in Bacteria of the Chloroflexota phylum. [PDF]
Nat MicrobiolAbstract Motility in Archaea is driven by the archaellum, a rotary ATP-driven machinery unrelated to the bacterial flagellum. To date, archaella have been described exclusively in archaea; however, recent work reported archaellum genes in bacterial strains of the SAR202 clade (Chloroflexota).
Sivabalasarma S +6 more
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Phosphorylation-driven conformational switching of the ArnA-ArnB complex involved in archaeal motility regulation. [PDF]
Front MicrobiolArnA 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.
Watad M +12 more
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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.
Lewis AM +5 more
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The Archaellum of
mBio, 2019 Microbially produced electrically conductive protein filaments are of interest because they can function as conduits for long-range biological electron transfer. They also show promise as sustainably produced electronic materials.
David J. F. Walker +5 more
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Characterization of the ATPase FlaI of the motor complex of the Pyrococcus furiosus archaellum and its interactions between the ATP-binding protein FlaH [PDF]
PeerJ, 2018 The archaellum, the rotating motility structure of archaea, is best studied in the crenarchaeon Sulfolobus acidocaldarius. To better understand how assembly and rotation of this structure is driven, two ATP-binding proteins, FlaI and FlaH of the motor ...
Paushali Chaudhury +2 more
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Transcriptome profiling of Nudix hydrolase gene deletions in the thermoacidophilic archaeon Sulfolobus acidocaldarius. [PDF]
Front Microbiol, 2023 Nudix hydrolases comprise a large and ubiquitous protein superfamily that catalyzes the hydrolysis of a nucleoside diphosphate linked to another moiety X (Nudix).
Breuer R +3 more
europepmc +2 more sources