Results 91 to 100 of about 5,644 (180)

Light Color‐Controlled pH‐Adjustment of Aqueous Solutions Using Engineered Proteoliposomes

open access: yesAdvanced Science, Volume 11, Issue 15, April 17, 2024.
This proteoliposome system translates light of different colors into specific pH changes of the surrounding solution. It works with the two light‐driven proton pumps bacteriorhodopsin (BR) and blue light‐absorbing proteorhodopsin Med12 (BPR), that are oriented in opposite directions in the vesicular lipid membrane.
Daniel Harder   +4 more
wiley   +1 more source

Biofilms of Halobacterium salinarum as a tool for phenanthrene bioremediation

open access: yesBiofouling, 2020
The use of hyperhalophilic microorganisms is emerging as a sustainable alternative to clean hydrocarbon-polluted hypersaline water bodies. In line with this practice, this work reports on the ability of the archaeon Halobacterium salinarum to develop biofilms on a solid surface conditioned by the presence of phenanthrene crystals, which results in the ...
Di Meglio, Leonardo Gabriel   +3 more
openaire   +3 more sources

Proteorhodopsin - A new path for biological utilization of light energy in the sea [PDF]

open access: yes, 2006
The breakthrough of environmental genomics of marine microbes has revealed the existence of eubacterial rhodopsin in the sea, named proteorhodopsin (PR), which can take light to produce bio-energy for cell metabolism.
Feng, Fuying   +3 more
core   +1 more source

TbsP and TrmB jointly regulate gapII to influence cell development phenotypes in the archaeon Haloferax volcanii

open access: yesMolecular Microbiology, Volume 121, Issue 4, Page 742-766, April 2024.
The transcription factors TrmB and TbsP coregulate the gluconeogenic enzyme‐coding gene gapII to influence cell lifestyle transitions in hypersaline archaea. The proposed model of regulation is shown above, and the motile‐to‐sessile transition that is indirectly influenced by this regulation is shown below.
Rylee K. Hackley   +10 more
wiley   +1 more source

Ion Transport of Biohybrid Asymmetric Membranes by pH and Light‐Cooperative Modulation

open access: yesAdvanced Materials Interfaces, 2020
Bacteriorhodopsin (bR) is an excellent light‐driven proton pump and plays a vital role in chemical and biological analytical processes, such as maintaining osmotic balance, intracellular acidity, and participating in photosynthesis.
Yujia Lv   +3 more
doaj   +1 more source

A history of optogenetics: the development of tools for controlling brain circuits with light [PDF]

open access: yes, 2011
Understanding how different kinds of neuron in the brain work together to implement sensations, feelings, thoughts, and movements, and how deficits in specific kinds of neuron result in brain diseases, has long been a priority in basic and clinical ...
Boyden, Edward Stuart
core   +2 more sources

The Function of Gas Vesicles in Halophilic Archaea and Bacteria: Theories and Experimental Evidence

open access: yesLife, 2012
A few extremely halophilic Archaea (Halobacterium salinarum, Haloquadratum walsbyi, Haloferax mediterranei, Halorubrum vacuolatum, Halogeometricum borinquense, Haloplanus spp.) possess gas vesicles that bestow buoyancy on the cells. Gas vesicles are also
Aharon Oren
doaj   +1 more source

The RosR transcription factor is required for gene expression dynamics in response to extreme oxidative stress in a hypersaline-adapted archaeon

open access: yesBMC Genomics, 2012
Background Previous work has shown that the hypersaline-adapted archaeon, Halobacterium salinarum NRC-1, is highly resistant to oxidative stress caused by exposure to hydrogen peroxide, UV, and gamma radiation.
Sharma Kriti   +3 more
doaj   +1 more source

Genetic and biochemical identification of a novel single-stranded DNA-binding complex in Haloferax volcanii [PDF]

open access: yes, 2012
Single-stranded DNA (ssDNA)-binding proteins play an essential role in DNA replication and repair. They use oligonucleotide/oligosaccharide-binding (OB)-folds, a five-stranded β-sheet coiled into a closed barrel, to bind to ssDNA thereby protecting and ...
Allers, Thorsten   +2 more
core   +1 more source

The genome-scale DNA-binding profile of BarR, a β-alanine responsive transcription factor in the archaeon Sulfolobus acidocaldarius [PDF]

open access: yes, 2016
The DNA-binding domains of S. acidocaldarius BarR and S. solfataricus Ss-LrpB might share a common ancestor.
Ann-Christin Lindås   +3 more
core   +2 more sources

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