Interaction of two strongly divergent archaellins stabilizes the structure of the Halorubrum archaellum [PDF]
MicrobiologyOpen, 2020 Halophilic archaea from the genus Halorubrum possess two extraordinarily diverged archaellin genes, flaB1 and flaB2. To clarify roles for each archaellin, we compared two natural Halorubrum lacusprofundi strains: One of them contains both archaellin ...
Alexey Syutkin +2 more
exaly +4 more sources
CryoEM reveals the structure of an archaeal pilus involved in twitching motility [PDF]
Nature CommunicationsAmongst the major types of archaeal filaments, several have been shown to closely resemble bacterial homologues of the Type IV pili (T4P). Within Sulfolobales, member species encode for three types of T4P, namely the archaellum, the UV-inducible pilus ...
Matthew C. Gaines +8 more
doaj +3 more sources
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
doaj +7 more sources
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 +2 more sources
Two membrane-bound transcription factors regulate expression of various type-IV-pili surface structures in Sulfolobus acidocaldarius [PDF]
PeerJ, 2019 In Archaea and Bacteria, gene expression is tightly regulated in response to environmental stimuli. In the thermoacidophilic crenarchaeon Sulfolobus acidocaldarius nutrient limitation induces expression of the archaellum, the archaeal motility structure.
Lisa Franziska Bischof +2 more
doaj +4 more sources
Molecular Microbiology, Volume 116, Issue 3, Page 943-956, September 2021., 2021 KaiC is the central component in the regulation of the cyanobacterial circadian rhythm. KaiC‐like proteins are widespread in archaea, where they are thought to have originated and thought to perform diverse functions. We show that the KaiC‐like protein ArlH—an essential protein for archaeal motility—possesses autophosphorylation activity which mediates
J. Nuno de Sousa Machado +7 more
wiley +2 more sources
Frontiers in Microbiology, 2020 In the crenarchaeon Sulfolobus acidocaldarius, the archaellum, a type-IV pilus like motility structure, is synthesized in response to nutrient starvation. Synthesis of components of the archaellum is controlled by the archaellum regulatory network (arn).
Xing Ye +10 more
doaj +2 more sources
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
doaj +4 more sources
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
doaj +2 more sources
Two types of sheathed archaellum structures from Haloarcula marismortui differ in their outer layer architectures [PDF]
Nature CommunicationsMany archaea swim by means of rotating helical filaments called archaella. Most archaella are about 10 nm in diameter and comprise multiple copies of the protein archaellin.
Vladimir A. Meshcheryakov +5 more
doaj +2 more sources