Results 91 to 100 of about 641,669 (159)

Production of extracellular vesicles with light‐induced proton pump activity by proteorhodopsin‐containing marine bacteria

MicrobiologyOpen, 2019
The production and release of extracellular vesicles (EVs) is a common process occurring in various types of bacteria. However, little is known regarding the functions of EVs derived from marine bacteria. We observed that during cell growth, Sediminicola
Yong Min Kwon, Ajit Kumar Patra, Hiroshi Xavier Chiura, Sang‐Jin Kim   +3 more
doaj   +1 more source

Quantum biology: From mechanisms to medicine

Clinical and Translational Medicine, Volume 16, Issue 5, May 2026.
Quantum biology across systems: from mechanisms to medicine. This graphical abstract highlights how quantum phenomena‐coherence, tunnelling and spin dynamics‐shape fundamental biological processes and point towards quantum‐informed medicine. In photosynthesis, quantum coherence supports near‐lossless exciton transport across pigment–protein complexes ...
Ji‐Yong Sung, Jae‐Ho Cheong
wiley   +1 more source

Deep Proteomic Profiles of the Antarctic Diatom Fragilariopsis Cylindrus Under Varying Iron and Manganese Conditions

PROTEOMICS, Volume 26, Issue 5, Page 112-119, May 2026.
ABSTRACT Fragilariopsis cylindrus is a key diatom in the Southern Ocean, where low iron and manganese availability constrain primary production and biogeochemical activity. The molecular mechanisms used by polar diatoms, including F. cylindrus, to cope with trace metal limitations remain largely unexplored.
Loay J. Jabre, Elden Rowland, J. Scott P. McCain, Erin M. Bertrand   +3 more
wiley   +1 more source

Functional expression of the eukaryotic proton pump rhodopsin OmR2 in Escherichia coli and its photochemical characterization

Scientific Reports, 2021
Microbial rhodopsins are photoswitchable seven-transmembrane proteins that are widely distributed in three domains of life, archaea, bacteria and eukarya.
Masuzu Kikuchi, Keiichi Kojima, Shin Nakao, Susumu Yoshizawa, Shiho Kawanishi, Atsushi Shibukawa, Takashi Kikukawa, Yuki Sudo   +7 more
doaj   +1 more source

The Conformational Switches of a Bacterial Light‐Driven Sodium Pump Characterized by Time‐Resolved Resonance Raman Spectroscopy

ChemPhysChem, Volume 27, Issue 7, 14 April 2026.
The microbial retinal protein KR2 (Krokinobacter eikastus) is a light‐driven outward Na+ pump, which is coupled to the photocycle of the chromophore. Using time‐resolved continuous‐wave pump‐probe resonance Raman spectroscopy, the operational switches for ion transport are identified, which are the transitions to a specific Schiff base sub‐state and ...
Anna Lena Schäfer, Arita Silapetere, Peter Hegemann, Katrina T. Forest, Uwe Kuhlmann, Peter Hildebrandt   +5 more
wiley   +1 more source

Molecular and evolutionary aspects of microbial sensory rhodopsins

Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2014
Retinal proteins (~rhodopsins) are photochemically reactive membrane-embedded proteins, with seven transmembrane α-helices which bind the chromophore retinal (vitamin A aldehyde). They are widely distributed through all three biological kingdoms, eukarya, bacteria and archaea, indicating the biological significance of the retinal proteins.
Inoue, Keiichi, Tsukamoto, Takashi, Sudo, Yuki   +2 more
openaire   +2 more sources

Simultaneous Presence of Bacteriochlorophyll and Xanthorhodopsin Genes in a Freshwater Bacterium

mSystems, 2020
Photoheterotrophic bacteria represent an important part of aquatic microbial communities. There exist two fundamentally different light-harvesting systems: bacteriochlorophyll-containing reaction centers or rhodopsins.
Karel Kopejtka, Jürgen Tomasch, Yonghui Zeng, Vadim Selyanin, Marko Dachev, Kasia Piwosz, Martin Tichý, David Bína, Zdenko Gardian, Boyke Bunk, Henner Brinkmann, Robert Geffers, Ruben Sommaruga, Michal Koblížek   +13 more
doaj   +1 more source

A New Era for Using Natural Pigments: The Case of the C50 Carotenoid Called Bacterioruberin

Biotechnology and Applied Biochemistry, Volume 73, Issue 2, Page 913-926, April 2026.
ABSTRACT Haloarchaea are extremophilic microorganisms belonging to the Archaea domain that require high salt concentrations to live, thus inhabiting ecosystems like salty ponds, salty marshes, or extremely salty lagoons. They are more abundant and widely distributed worldwide than initially expected.
Micaela Giani, Elena Valdés, José María Miralles‐Robledillo, Guillermo Martínez, Carmen Pire, Rosa María Martínez‐Espinosa   +5 more
wiley   +1 more source

Human cells for human proteins: Isotope labeling in mammalian cells in suspension for functional NMR studies

Protein Science, Volume 35, Issue 4, April 2026.
Abstract In biological and biomedical research, the focus progressively moves towards difficult human proteins, which often can only be expressed in higher eukaryotic cells. Nuclear magnetic resonance (NMR) could contribute significantly to the understanding of important proteins as it is one of the most information‐rich methods.
Philip Rößler, Marco M. Ruckstuhl, Arnelle Löbbert, Timo Stühlinger, Lucia R. Franchini, Ching‐Ju Tsai, Roman Lichtenecker, Binesh Shrestha, Simon H. Rüdisser, Robert Konrat, Gebhard F. X. Schertler, Alvar D. Gossert   +11 more
wiley   +1 more source

Spray‐induced gene silencing as a novel strategy for managing dollar spot in creeping bentgrass caused by Clarireedia jacksonii

Pest Management Science, Volume 82, Issue 4, Page 3993-4006, April 2026.
In planta screening of 32 dsRNAs identified effective SIGS candidates, and mechanistic analyses in Clarireedia jacksonii confirmed that SIGS is feasible through dsRNA uptake, siRNA production, and target transcript knockdown. Abstract BACKGROUND Clarireedia jacksonii, the causal agent of dollar spot, is a major turfgrass pathogen for which sustainable ...
Sooho Lim, Hosung Jeon, Woojin Kim, Minlee Kim, Hokyoung Son   +4 more
wiley   +1 more source