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 (
Amy Schmid +2 more
exaly +5 more sources
Evolution of Archaellum Rotation Involved Invention of a Stator Complex by Duplicating and Modifying a Core Component [PDF]
Frontiers in Microbiology, 2021 Novelty in biology can arise from opportunistic repurposing of nascent characteristics of existing features. Understanding how this process happens at the molecular scale, however, suffers from a lack of case studies. The evolutionary emergence of rotary
Trishant R. Umrekar +7 more
doaj +6 more sources
Structure of a functional archaellum in Bacteria of the Chloroflexota phylum [PDF]
Nature MicrobiologyAbstract 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).
Stefan Steimle +2 more
exaly +5 more sources
CsmR controls both, motility and cell shape, in Haloferax volcanii. [PDF]
PLoS GeneticsArchaea rely on motility and morphological plasticity to navigate their environments, yet the transcriptional regulation of these processes remains poorly understood.
Phillip Nußbaum +12 more
doaj +2 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
Decipering the subunit interaction in the crenarchaeal archaellum
, 2014 The archaeal motility structure, the archaellum is an intriguing hybrid of the function and architecture of two distinct motility organelles, the bacterial flagellum and the T4P, respectively.
Neiner, Tomasz Paweł +1 more
core +5 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 ...
Shahar Sofer +6 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
ArnS, a kinase involved in starvation-induced archaellum expression [PDF]
Molecular Microbiology, 2016 Organisms have evolved motility organelles that allow them to move to favorable habitats. Cells integrate environmental stimuli into intracellular signals to motility machineries to direct this migration.
Wilson, Amanda J. +26 more
core +4 more sources
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.
Zhirui Zeng +2 more
exaly +4 more sources