Structure of the archaeal chemotaxis protein CheY in a domain-swapped dimeric conformation [PDF]
, 2019 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.
Oesterhelt, D. +8 more
core +3 more sources
The Lrs14‐Like AbfR1 Homolog From Metallosphaera sedula Is a Nucleoid‐Organizing Protein
MicrobiologyOpen, Volume 14, Issue 5, October 2025.Nucleoid organization in Crenarchaeota involves diverse small DNA‐binding proteins. The Lrs14‐type protein AbfR1 from Metallosphaera sedula binds nonsequence specifically across the genome and induces DNA condensation. These findings suggest a structural role for AbfR1Ms in chromatin architecture, functionally resembling bacterial nucleoid‐associated ...
Veerke De Kock +5 more
wiley +1 more source
CryoEM structure of the Methanospirillum hungatei archaellum reveals structural features distinct from the bacterial flagellum and type IV pilus [PDF]
, 2017 Archaea use flagella known as archaella—distinct both in protein composition and structure from bacterial flagella—to drive cell motility, but the structural basis of this function is unknown.
Loo, Rachel R Ogorzalek +5 more
core +1 more source
Magnetite Nanoparticles Enhancing H2‐Driven Biomethanation in a Mixed Microbial Community
Global Challenges, Volume 9, Issue 9, September 2025.Supplementation of magnetite nanoparticles to a mixed microbial culture accelerates H2/CO2 biomethanation by up to 13‐fold. The observed enhancement is accompanied by a marked enrichment of Paracoccus sp., suggesting the establishment of a mutualistic interaction with hydrogenotrophic methanogens via interspecies electron transfer.
Matteo Tucci +11 more
wiley +1 more source
Salt‐dependent regulation of archaellins in Haloarcula marismortui
MicrobiologyOpen, 2019 Microorganisms require a motility structure to move towards optimal growth conditions. The motility structure from archaea, the archaellum, is fundamentally different from its bacterial counterpart, the flagellum, and is assembled in a similar fashion as
Alexey S. Syutkin +6 more
doaj +1 more source
Positioning of the Motility Machinery in Halophilic Archaea
mBio, 2019 Bacteria and archaea exhibit tactical behavior and can move up and down chemical gradients. This tactical behavior relies on a motility structure, which is guided by a chemosensory system.
Zhengqun Li +7 more
doaj +1 more source
Frontiers in Microbiology, 2020 In Sulfolobus acidocaldarius, the protein phosphatase PP2A plays important regulatory roles in many cellular processes, including cell growth, cell shape and synthesis of the archaellum.
Xing Ye +2 more
doaj +1 more source
Screening of a Haloferax volcanii Transposon Library Reveals Novel Motility and Adhesion Mutants
Life, 2016 Archaea, like bacteria, use type IV pili to facilitate surface adhesion. Moreover, archaeal flagella—structures required for motility—share a common ancestry with type IV pili.
Georgio Legerme +5 more
doaj +1 more source
Regulation of DNA Topology in Archaea: State of the Art and Perspectives
Molecular Microbiology, Volume 123, Issue 3, Page 245-264, March 2025.DNA topoisomerases are ubiquitous enzymes that play a crucial role in regulating DNA supercoiling which affects fundamental biological processes involving DNA. In this review, we summarize the current understanding of regulation of supercoiling by DNA topoisomerases in the third domain of life, the Archaea, with a particular focus on three key model ...
Paul Villain, Tamara Basta
wiley +1 more source
Dechiffrierung von Wechselwirkungen der Untereinheiten des Archaellum von Crenarchaeota
, 2015 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 (1064589189)
core +1 more source