Results 91 to 100 of about 634,170 (178)

Unique Cl– pump rhodopsin with close similarity to H+ pump rhodopsin

Biophysics and Physicobiology, 2022
Microbial rhodopsin is a ubiquitous membrane protein in unicellular microorganisms. Similar to animal rhodopsin, this protein consists of seven transmembrane helices and the chromophore retinal.
Takashi Kikukawa
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

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

Distribution and expression of microbial rhodopsins in the Baltic Sea and adjacent waters

, 2016
Rhodopsins are light-driven ion-pumping membrane proteins found in many organisms and are proposed to be of global importance for oceanic microbial energy generation.
Martin Ekman, Björn Brindefalk, Christopher L. Dupont, Shibu Yooseph, Bergman, Birgitta,, Ininbergs, Karolina,, Ininbergs, Karolina, Birgitta Bergman, Yooseph, Shibu, Ekman, Martin,, Jarone Pinhassi, Ekman, Martin, Karolina Ininbergs, Bergman, Birgitta, Yooseph, Shibu,, Pinhassi, Jarone,, Pinhassi, Jarone, Brindefalk, Bjorn, Dupont, Christopher L., Dupont, Christopher L.,, Brindefalk, Bjorn,   +20 more
core   +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

Comparative analysis of canonical and noncanonical rhodopsins in Amphidinium carterae and Karlodinium veneficum

Journal of Phycology, Volume 62, Issue 2, Page 360-376, April 2026.
Abstract Rhodopsins are ancient and versatile light‐sensitive proteins, widely distributed across microbial life. In dinoflagellates, however, their diversity and function remain poorly understood, owing to the lineage's extreme genomic divergence. Here, we surveyed the rhodopsin complements of two dinoflagellates, Amphidinium carterae and Karlodinium ...
Jens Wira, Miranda Judd, Anne Baldino, Tsvetan Bachvaroff, Allen R. Place   +4 more
wiley   +1 more source

Opsin 1 and Opsin 2 of the Corn Smut Fungus Ustilago maydis Are Green Light-Driven Proton Pumps

Frontiers in Microbiology, 2019
In fungi, green light is absorbed by rhodopsins, opsin proteins carrying a retinal molecule as chromophore. The basidiomycete Ustilago maydis, a fungal pathogen that infects corn plants, encodes three putative photoactive opsins, called ops1 (UMAG_02629),
Sabine Panzer, Annika Brych, Alfred Batschauer, Ulrich Terpitz   +3 more
doaj   +1 more source

Expression analysis of microbial rhodopsin-like genes in Guillardia theta.

PLoS ONE, 2020
The Cryptomonad Guillardia theta has 42 genes encoding microbial rhodopsin-like proteins in their genomes. Light-driven ion-pump activity has been reported for some rhodopsins based on heterologous E. coli or mammalian cell expression systems.
Masae Konno, Yumeka Yamauchi, Keiichi Inoue, Hideki Kandori   +3 more
doaj   +1 more source