Results 21 to 30 of about 456 (125)

Low Salt Influences Archaellum-Based Motility, Glycerol Metabolism, and Gas Vesicles Biogenesis in Halobacterium salinarum [PDF]

Microorganisms, 2022
Halobacterium salinarum NRC-1 is an extremophile that grows optimally at 4.3 M NaCl concentration. In spite of being an established model microorganism for the archaea domain, direct comparisons between its proteome and transcriptome during osmotic ...
Evelyn Ayumi Onga, Ricardo Z. N. Vêncio, Tie Koide   +2 more
doaj   +2 more sources

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

Nature Communications
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 ...
Matthew C. Gaines, Shamphavi Sivabalasarma, Michail N. Isupov, Risat Ul Haque, Mathew McLaren, Cyril Hanus, Vicki A. M. Gold, Sonja-Verena Albers, Bertram Daum   +8 more
doaj   +2 more sources

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

Nature Communications
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.
Matthew C. Gaines, Michail N. Isupov, Mathew McLaren, Clara L. Mollat, Risat Ul Haque, Jake K. Stephenson, Shamphavi Sivabalasarma, Cyril Hanus, Daniel Kattnig, Vicki A. M. Gold, Sonja Albers, Bertram Daum   +11 more
doaj   +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

MinD proteins regulate CetZ1 localization in Haloferax volcanii [PDF]

Frontiers in Microbiology
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 ...
Hannah J. Brown, Iain G. Duggin
doaj   +2 more sources

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

Frontiers in Microbiology
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.
Megha Patro, Megha Patro, Felix Grünberger, Shamphavi Sivabalasarma, Shamphavi Sivabalasarma, Sabrina Gfrerer, Marta Rodriguez-Franco, Phillip Nußbaum, Dina Grohmann, Solenne Ithurbide, Sonja-Verena Albers, Sonja-Verena Albers   +11 more
doaj   +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.
Sabine Schwarzer, Leonard E. Bäcker, Jeroen G. Nijland, Ismail Hayani Aji, Anne de Jong, Cristina Moraru, Claudia Steglich, Tessa E. F. Quax   +7 more
doaj   +2 more sources

Two different sulfotransferases modify sugars of the N-linked tetrasaccharide decorating Halobacterium salinarum 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 ...
Marianna Zaretsky, Zlata Vershinin, Lihi Erez, Iris Grossman-Haham, Jerry Eichler   +4 more
doaj   +2 more sources

Nitrosarchaeum haohaiensis sp. Nov. CL1^T: Isolation and Characterisation of a Novel Ammonia-Oxidising Archaeon From Aquatic Environments. [PDF]

Environ Microbiol Rep
Following a 3.5‐year enrichment cultivation period, a rapid‐growing ammonia‐oxidising archaeon, designated CL1T, was isolated from the East China Sea. Strain CL1T represents a new species within the Nitrosarchaeum genus and is capable of effectively oxidising ammonia at both low and high concentrations through the GS‐GOGAT and GDH pathways. Furthermore,
Li H, Zhuang L, Cai H, Ni Y, Chu T, Chen L, Yu Y, Wang Y.   +7 more
europepmc   +2 more sources

Identification of novel components of the Ced and Ups systems in Saccharolobus islandicus REY15A. [PDF]

mLife
Abstract In Sulfolobales cells, transcription of the Ups (UV‐inducible pili of Sulfolobus) and Ced (Crenarchaeal system for exchange of DNA) genes is highly induced by DNA damage, and the two systems play key roles in pili‐mediated cell aggregation and chromosomal DNA import, respectively.
Wu P, Zhang M, Kou Y, Liang S, Ni J, Huang Q, Shen Y.   +6 more
europepmc   +2 more sources