Results 1 to 10 of about 77,666 (195)

A Synthetic Riboswitch to Regulate Haloarchaeal Gene Expression

open access: yesFrontiers in Microbiology, 2021
In recent years, synthetic riboswitches have become increasingly important to construct genetic circuits in all three domains of life. In bacteria, synthetic translational riboswitches are often employed that modulate gene expression by masking the Shine-
Johannes Born   +4 more
doaj   +1 more source

CopR, a Global Regulator of Transcription to Maintain Copper Homeostasis in Pyrococcus furiosus

open access: yesFrontiers in Microbiology, 2021
Although copper is in many cases an essential micronutrient for cellular life, higher concentrations are toxic. Therefore, all living cells have developed strategies to maintain copper homeostasis.
Felix Grünberger   +12 more
doaj   +1 more source

The archaeal protein SepF is essential for cell division in Haloferax volcanii

open access: yesNature Communications, 2021
In most bacteria, cell division depends on tubulin homolog FtsZ and other proteins, such as SepF. Cell division in many archaea also depends on FtsZ. Here, Nußbaum et al.
Phillip Nußbaum   +4 more
doaj   +1 more source

Analysis of biomass productivity and physiology of Nitrososphaera viennensis grown in continuous culture

open access: yesFrontiers in Microbiology, 2023
Microbial ammonia oxidation is the first and usually rate limiting step in nitrification and is therefore an important step in the global nitrogen cycle. Ammonia-oxidizing archaea (AOA) play an important role in nitrification.
Michael Melcher   +6 more
doaj   +1 more source

Characterization of the ATPase FlaI of the motor complex of the Pyrococcus furiosus archaellum and its interactions between the ATP-binding protein FlaH [PDF]

open access: yesPeerJ, 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   +2 more sources

The FHA domain protein ArnA functions as a global DNA damage response repressor in the hyperthermophilic archaeon Saccharolobus islandicus

open access: yesmBio, 2023
Forkhead-associated (FHA) domain proteins specifically recognize phosphorylated threonine via the FHA domain and are involved in signal transduction in various processes especially DNA damage response (DDR) and cell cycle regulation in eukaryotes ...
Zhichao Jiang   +9 more
doaj   +1 more source

Biomethanation of Carbon Monoxide by Hyperthermophilic Artificial Archaeal Co-Cultures

open access: yesFermentation, 2021
Climate neutral and sustainable energy sources will play a key role in future energy production. Biomethanation by gas to gas conversion of flue gases is one option with regard to renewable energy production.
Aaron Zipperle   +7 more
doaj   +1 more source

Archaeal GPN-loop GTPases involve a lock-switch-rock mechanism for GTP hydrolysis

open access: yesmBio, 2023
Three GPN-loop GTPases, GPN1–GPN3, are central to the maturation and trafficking of eukaryotic RNA polymerase II. This GTPase family is widely represented in archaea but typically occurs as single paralogs.
Lukas Korf   +9 more
doaj   +1 more source

Grappling archaea: ultrastructural analyses of an uncultivated, cold-loving archaeon and its biofilm

open access: yesFrontiers in Microbiology, 2014
Similarly to Bacteria, Archaea are microorganisms that interact with their surrounding environment in a versatile manner. To date, interactions based on cellular structure and surface appendages have mainly been documented using model systems of ...
Alexandra ePerras   +11 more
doaj   +1 more source

Positioning of the Motility Machinery in Halophilic Archaea

open access: yesmBio, 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

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