Results 11 to 20 of about 3,073 (104)
The C50 carotenoid bacterioruberin regulates membrane fluidity in pink-pigmented Arthrobacter species [PDF]
Archives of Microbiology, 2021 AbstractCarotenoids have several crucial biological functions and are part of the cold adaptation mechanism of some bacteria. Some pink-pigmented Arthrobacter species produce the rare C50 carotenoid bacterioruberin, whose function in these bacteria is unclear and is found mainly in halophilic archaea.
Alexander Flegler, André Lipski
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Small, Volume 18, Issue 42, October 20, 2022., 2022 Large proteins support remarkably high charge transport rates, but the factors that influence the charge transport mechanism are still unclear. This work shows the importance of structural order: ordered structures support coherent tunnelling pathways while charges “hop” across disordered structures.
Nipun Kumar Gupta +8 more
wiley +1 more source
Identification of acetylated diether lipids in halophilic Archaea
MicrobiologyOpen, Volume 11, Issue 3, June 2022., 2022 Archaea‐type ether lipids have been found recently in Bacillales. They are monoether lipids with a C35 isoprenoid chain and are diacetylated by the O‐acetyltransferase YvoF. Phylogenetic studies implied that YvoF homologs also occur in Halobacteria (Archaea).
Cosimo Kropp +6 more
wiley +1 more source
New Phytologist, Volume 232, Issue 2, Page 479-493, October 2021., 2021 Summary The development of photosynthesis was a highlight in the progression of bacteria. In addition to the photosystems with their structural proteins, the photosynthesis apparatus consists of different cofactors including essential carotenoids.
Gerhard Sandmann
wiley +1 more source
Bacterioopsin-Mediated Regulation of Bacterioruberin Biosynthesis in Halobacterium salinarum [PDF]
Journal of Bacteriology, 2011 ABSTRACT Integral membrane protein complexes consisting of proteins and small molecules that act as cofactors have important functions in all organisms. To form functional complexes, cofactor biosynthesis must be coordinated with the production of corresponding apoproteins. To examine this coordination, we study bacteriorhodopsin
Antoinette M, Dummer +5 more
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Opsin-Mediated Inhibition of Bacterioruberin Synthesis in Halophilic Archaea [PDF]
Journal of Bacteriology, 2017 ABSTRACTHalophilic archaea often inhabit environments with limited oxygen, and many produce ion-pumping rhodopsin complexes that allow them to maintain electrochemical gradients when aerobic respiration is inhibited. Rhodopsins require a protein, an opsin, and an organic cofactor, retinal.
Ronald F, Peck +4 more
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More Than Pigments: The Potential of Astaxanthin and Bacterioruberin-Based Nanomedicines
Pharmaceutics, 2023 Carotenoids are natural products regulated by the food sector, currently used as feed dyes and as antioxidants in dietary supplements and composing functional foods for human consumption. Of the nearly one thousand carotenoids described to date, only retinoids, derived from beta carotene, have the status of a drug and are regulated by the ...
Maria Jose Morilla +2 more
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Kinetics of DPPH• scavenging by bacterioruberin from Haloferax alexandrinus GUSF-1 (KF796625) [PDF]
Journal of Analytical Science and Technology, 2021 AbstractThis is the first account of the kinetics of free radical scavenging by bacterioruberin obtained from cells of Haloferax alexandrinus GUSF-1(KF796625), grown at optimum conditions of 25% NaCl, pH 7, 42 °C, 150 rpm in NaCl Tryptone yeast extract medium and light.
Jyothi Judith Alvares +1 more
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Bacterial‐like nitric oxide synthase in the haloalkaliphilic archaeon Natronomonas pharaonis
MicrobiologyOpen, Volume 9, Issue 11, November 2020., 2020 This study details the first characterization of an Archaeal NOS enzyme, whereby bioinformatic and biochemical approaches confirm that Natronomonas pharaonis ORF NP_1908A encodes a bacterial NOS‐like protein which can catalyze NO production in vitro. This study is also the first to describe genetic manipulation of Nmn.
Silvia S. Orsini +7 more
wiley +1 more source
Species Widely Distributed in Halophilic Archaea Exhibit Opsin-Mediated Inhibition of Bacterioruberin Biosynthesis [PDF]
Journal of Bacteriology, 2019 All organisms use a variety of mechanisms to allocate limited resources to match their needs in their current environment. Here, we explore how halophilic microbes use a novel mechanism to allow efficient production of rhodopsin, a complex of an opsin protein and a retinal prosthetic group.
Ronald F, Peck +2 more
openaire +2 more sources