Results 21 to 30 of about 506 (136)

The Role of Polyphosphate in Motility, Adhesion, and Biofilm Formation in Sulfolobales. [PDF]

Microorganisms, 2021
Polyphosphates (polyP) are polymers of orthophosphate residues linked by high-energy phosphoanhydride bonds that are important in all domains of life and function in many different processes, including biofilm development. To study the effect of polyP in
Recalde A, van Wolferen M, Sivabalasarma S, Albers SV, Navarro CA, Jerez CA.   +5 more
europepmc   +2 more sources

MinD proteins regulate CetZ1 localization in Haloferax volcanii. [PDF]

Front Microbiol
CetZ proteins are archaea-specific homologs of the cytoskeletal proteins FtsZ and tubulin. In the pleomorphic archaeon Haloferax volcanii, CetZ1 contributes to the development of rod shape and motility, and has been implicated in the proper assembly and ...
Brown HJ, Duggin IG.
europepmc   +2 more sources

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, Marleen vanWolferen, Alexey K. Surin, Sonja‐Verena Albers, Mikhail G. Pyatibratov, Oleg V. Fedorov, Tessa E. F. Quax   +6 more
doaj   +2 more sources

Autophosphorylation of the KaiC‐like protein ArlH inhibits oligomerization and interaction with ArlI, the motor ATPase of the archaellum [PDF]

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
João Nuno de Sousa Machado, Leonie Vollmar, Julia Schimpf, Paushali Chaudhury, Rashmi Kumariya, Chris van der Does, Thorsten Hugel, Sonja‐Verena Albers   +7 more
openalex   +2 more sources

MinD2 modulates cell shape and motility in the archaeon Haloferax volcanii. [PDF]

Front Microbiol
In bacteria and archaea, proteins of the ParA/MinD family of ATPases regulate the spatiotemporal organization of various cellular cargoes, including cell division proteins, motility structures, chemotaxis systems, and chromosomes.
Patro M, Grünberger F, Sivabalasarma S, Gfrerer S, Rodriguez-Franco M, Nußbaum P, Grohmann D, Ithurbide S, Albers SV.   +8 more
europepmc   +2 more sources

The infection cycle of the haloarchaeal virus HFTV1 is tightly regulated and strongly inhibits motility of its host. [PDF]

mSystems
Although 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.
Schwarzer S, Bäcker LE, Nijland JG, Hayani Aji I, de Jong A, Moraru C, Steglich C, Quax TEF.   +7 more
europepmc   +2 more sources

CryoEM reveals the structure of an archaeal pilus involved in twitching motility. [PDF]

Nat Commun
Amongst 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 ...
Gaines MC, Sivabalasarma S, Isupov MN, Haque RU, McLaren M, Hanus C, Gold VAM, Albers SV, Daum B.   +8 more
europepmc   +2 more sources

Das Archaellum [PDF]

Biologie in unserer Zeit, 2017
In dieser heißen und schlammigen Quelle im Yellowstone National Park, USA, überlebt nur, wer Temperaturen um die 75 °C und einen pH‐Wert von 2–3 mag – so wie das Archaeon Sulfolobus acidocaldarius. Rechts im Bild zwei Lebewesen, die dort Proben genommen haben und sich eher bei 20 °C und einem pH‐Wert der Haut von ungefähr 5,5 wohlfühlen: Sonja‐Verena ...
Artenkenntnis Einheimischer Vgel, In Zeit   +1 more
  +5 more sources

Two different sulfotransferases modify sugars of the N-linked tetrasaccharide decorating <i>Halobacterium salinarum</i> glycoproteins. [PDF]

mBio
Despite providing the first example of archaeal N-glycosylation almost 50 years ago, detailed insight into the pathway used by Halobacterium salinarum to assemble and attach an N-linked tetrasaccharide decorating glycoproteins in this haloarchaea has ...
Zaretsky M, Vershinin Z, Erez L, Grossman-Haham I, Eichler J.   +4 more
europepmc   +2 more sources

Towards a molecular picture of the archaeal cell surface. [PDF]

Nat Commun
Archaea produce various protein filaments with specialised functions. While some archaea produce only one type of filament, the archaeal model species Sulfolobus acidocaldarius generates four.
Gaines MC, Isupov MN, McLaren M, Mollat CL, Haque RU, Stephenson JK, Sivabalasarma S, Hanus C, Kattnig D, Gold VAM, Albers S, Daum B.   +11 more
europepmc   +2 more sources