Results 91 to 100 of about 29,478 (285)
Stabilized Ion Selectivity Corrects Activation Drift in Kalium Channelrhodopsins
Advanced Science, Volume 13, Issue 6, 30 January 2026.As newly emerged optogenetic tools, potassium channelrhodopsins (KCRs) can drift from inhibition to activation during illumination as K⁺ selectivity declines. It is shown that both the absolute K⁺/Na⁺ permeability ratio and its stability over time govern this drift, identify KCR1‐C29D as a reliably inhibitory variant, and outline design principles for ...
Xiao Duan +14 more
wiley +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
Acta Crystallographica Section D, Volume 82, Issue 1, Page 11-22, January 2026.This work demonstrates that multi‐position data acquisition mitigates radiation damage in electron diffraction of three‐dimensional protein crystals and that merging data from selected crystals in distinct orientations enhances completeness. Application of the two approaches enables high‐quality structural models to be obtained from limited or ...
Alaa Shaikhqasem +8 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
Structural studies of bacteriorhodopsin in BC era
Biophysics and Physicobiology, 2023 It marked half a century since the discovery of bacteriorhodopsin two years ago. On this occasion, I have revisited historically important diffraction studies of this membrane protein, based on my recollections. X-ray diffraction and electron diffraction,
Mikio Kataoka
doaj +1 more source
The Bacterial Photosynthetic Reaction Center as a Model for Membrane Proteins [PDF]
, 1989 Membrane proteins participate in many fundamental cellular processes. Until recently, an understanding of the function and properties of membrane proteins was hampered by an absence of structural information at the atomic level.
Allen, J. P. +4 more
core +1 more source
Small, Volume 21, Issue 49, December 10, 2025.A bottom‐up way to fabricate precisely engineered micropore solid‐state metal substrate/protein film / evaporated metal structures is shown to be a versatile platform for systematic electron transport measurements. As protein function is preserved and the junctions are thermally stable, down to 10K, such junctions can be useful for bioelectronic ...
Sudipta Bera +12 more
wiley +1 more source
Angewandte Chemie, Volume 137, Issue 48, November 24, 2025.Ein ATP‐Generator, der Mitochondrien nachahmt, verbessert die Enzyminstabilität von enzymbasierten künstlichen Mitochondrien und beseitigt die Toxizität von H2O2 durch quantitative Enzym‐Co‐Kompartimentierung. Die resultierenden künstlichen Mitochondrien können einen nachhaltigen Protonengradienten für die ATP‐Synthese aufbauen.
Fangqin Fu +7 more
wiley +1 more source
, 2009 When moving from native to light activated bacteriorhodopsin, modification of charge transport consisting of an increase of conductance is correlated to the protein conformational change.
Alfinito, Eleonora, Reggiani, Lino
core +1 more source
Atomistic Insight into the Role of Threonine 127 in the Functional Mechanism of Channelrhodopsin-2 [PDF]
, 2019 Channelrhodopsins (ChRs) belong to the unique class of light-gated ion channels. The structure of channelrhodopsin-2 from Chlamydomonas reinhardtii (CrChR2) has been resolved, but the mechanistic link between light-induced isomerization of the ...
Bamann, Christian +9 more
core +1 more source