Results 81 to 90 of about 30,370 (300)
Opsins are phospholipid scramblases in all domains of life
mBioOpsins are highly abundant retinal proteins in the membranes of photoheterotrophic bacteria. However, some microbial genomes encode an opsin but lack the gene for the final enzyme in retinal synthesis.
Zachary A. Maschmann +5 more
doaj +1 more source
Ion Transport of Biohybrid Asymmetric Membranes by pH and Light‐Cooperative Modulation
Advanced 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
Cryo-EM structures of the channelrhodopsin ChRmine in lipid nanodiscs
Nature Communications, 2022 ChRmine is a bacteriorhodopsin-like cation channelrhodopsin (BCCR). Here, the authors present cryo-EM structures of ChRmine in apo- and retinal-bound forms to provide insight into channel activity in a BCCR and facilitate engineering of ChRmine-based ...
Kyle Tucker +3 more
doaj +1 more source
Tyrosine 263 in Cyanobacterial Phytochrome Cph1 Optimizes Photochemistry at the prelumi-R→lumi-R Step [PDF]
, 2014 We report a low-temperature fluorescence spectroscopy study of the PAS-GAF-PHY sensory module of Cph1 phytochrome, its Y263F mutant (both with known 3D structures) as well as Y263H and Y263S to connect their photochemical parameters with intramolecular ...
Essen, Lars-Oliver +7 more
core +1 more source
Advanced Functional Materials, Volume 36, Issue 31, 16 April 2026.A robust solid‐state protein junction with a semi‐transparent eC/Au electrode allows photoexcitation of the bacterio‐rhodopsin, bR layer, to isomerize the bR retinal. The resulting photo‐response shows the protein is functional in the solid‐state junction.
Shailendra K. Saxena +5 more
wiley +1 more source
Life, 2016 We have explored the use of optical oxygen electrodes to study oxygenic photosynthesis and heterotrophic activities in crystallizer brines of the salterns in Eilat, Israel.
Aharon Oren
doaj +1 more source
Lipid composition of integral purple membrane by 1H and 31P NMR
Journal of Lipid Research, 2005 In the purple membrane (PM) of halobacteria, lipids stabilize the trimeric arrangement of bacteriorhodopsin (BR) molecules and mediate the packing of the trimers in a regular crystalline arrangement.
Christian Renner +2 more
doaj +1 more source
Protein structural change at the cytoplasmic surface as the cause of cooperativity in the bacteriorhodopsin photocycle [PDF]
, 1996 The effects of excitation light intensity on the kinetics of the bacteriorhodopsin photocycle were investigated. The earlier reported intensity-dependent changes at 410 and 570 nm are explained by parallel increases in two of the rate constants, for ...
Váró, G., Needleman, R., Lanyi, J.K.
core +1 more source
Photo‐Modulated Proton Transport in Merocyanine Metastable‐State Photoacid Based Polymers
Small, Volume 22, Issue 23, 22 April 2026.The covalent incorporation of merocyanine metastable‐state photoacid into soft polymers imparts conductivity to otherwise insulating matrices, allowing light‐triggered control of charge and structure, offering a new platform for photo‐responsive, ion‐conducting materials.
Gianni Pacella +5 more
wiley +1 more source
Ionic Polymer Microactuator Activated by Photoresponsive Organic Proton Pumps
Actuators, 2015 An ionic polymer microactuator driven by an organic photoelectric proton pump transducer is described in this paper. The light responsive transducer is fabricated by using molecular self-assembly to immobilize oriented bacteriorhodopsin purple membrane ...
Khaled M. Al-Aribe +2 more
doaj +1 more source