Results 41 to 50 of about 5,006 (168)

Bacteriorhodopsin of purple membrane reverses anisotropy outside the pH range of proton pumping based on logic gate realization

Scientific Reports
The bacteriorhodopsin of purple membrane is the first discovered light-sensing protein among ion transporting microbial rhodopsins, some of which (e.g.
Hamdy I. A. Mostafa, Abdo A. Elfiki
doaj   +1 more source

The Role of Graphene Monolayers in Enhancing the Yield of Bacteriorhodopsin Photostates for Optical Memory Applications

Applied Sciences, 2021
Bacteriorhodopsin (bR) is a photoactive protein that has gained increasing importance as a tool for optical memory storage due to its remarkable photochemical and thermal stability.
Roma Patel, Gregory Salamone, Isaac Macwan   +2 more
doaj   +1 more source

Photochemistry of monomethylated and permethylated bacteriorhodopsin [PDF]

, 1988
Methylation of the nonactive site lysines of bacteriorhodopsin to form permethylated bacteriorhodopsin does not interfere with the formation of the short wavelength intermediate M412 or light-induced proton release/uptake.
Rando, R.R., Longstaff, C., Dancshazy, Z., Ebrey, T.G., Govindjee, R.   +4 more
core   +1 more source

Extremophilic bacteriorhodopsin from hypersaline salt pan: characterization and photoelectrochemical assessment for potential biosensor applications

Frontiers in Microbiology
IntroductionSalt pans host a diverse microbiome, including specialized extremophilic haloarchaea capable of producing industrially valuable biomolecules, yet remains underexplored extreme environment.
Steffy Joseph, Louis Stanley Abraham, Thirugnanasambandam Rajendran, Dharani Gopal, Dhinakarasamy Inbakandan, Sivakumar Manikandan, Balasubramanian Thangavel, Sumathi Jones, Ratih Setyaningrum, HeeKyung Cho, Ravishankar Ram Mani, Soon Woong Chang, Balasubramani Ravindran, Balasubramani Ravindran   +13 more
doaj   +1 more source

Light Sensor Platform Based on the Integration of Bacteriorhodopsin with a Single Electron Transistor

Active and Passive Electronic Components, 2011
This paper reports on the integration of an optical protein with single electron transistors to form a nano-bio-hybrid device for sensing. Bacteriorhodopsin (bR) is an optoelectric protein that translocates a proton across a distance of several ...
Karl A. Walczak, Paul L. Bergstrom, Craig R. Friedrich   +2 more
doaj   +1 more source

Deep Mutational Scanning for the Study and Engineering of Protein Assemblies

Chemistry–Methods, Volume 6, Issue 8, August 2026.
This review explores how deep mutational scanning (DMS) can be used to improve understanding and accelerate engineering of protein assemblies, from natural fibers to engineered nanocages. We discuss various types of protein assemblies and their characterization, provide an introduction to the DMS technique, and then highlight examples in which DMS has ...
Jenna B. Wolfanger, Shoili Banerjee, Carolyn E. Mills   +2 more
wiley   +1 more source

Photochemical reaction of bacteriorhodopsin

FEBS Letters, 1976
Halobacterium halobium utilizes light both as a stimulus for phototaxis [l] and as an energy source for creating a proton gradient across the cell membrane which in turn produces ATP [2] . The photoreceptive pigment of this bacterium was first investigated by Oesterhelt and Stoeckenius [3] who showed that it is the only protein lying in so-called ...
Tokunaga, Fumio, Iwasa, Tatsuro, Yoshizawa, Toru   +2 more
openaire   +2 more sources

Retinal photoisomerization versus counterion protonation in light and dark-adapted bacteriorhodopsin and its primary photoproduct

Nature Communications
Discovered over 50 years ago, bacteriorhodopsin is the first recognized and most widely studied microbial retinal protein. Serving as a light-activated proton pump, it represents the archetypal ion-pumping system.
Partha Malakar, Samira Gholami, Mohammad Aarabi, Ivan Rivalta, Mordechai Sheves, Marco Garavelli, Sanford Ruhman   +6 more
doaj   +1 more source

Maximum Entropy Production Theorem for Transitions between Enzyme Functional States and Its Applications

Entropy, 2019
Transitions between enzyme functional states are often connected to conformational changes involving electron or proton transport and directional movements of a group of atoms.
Davor Juretić, Juraj Simunić, Željana Bonačić Lošić   +2 more
doaj   +1 more source

Decoding the Hot‐Mitochondrion Paradox

BioEssays, Volume 48, Issue 7, July 2026.
A distributed mechanism of mitochondrial heat generation is proposed in which all ion‐translocating proteins embedded within the inner mitochondrial membrane contribute to localized heat generation. All ion‐translocating proteins embedded within the inner mitochondrial membrane (IMM)—with ATP synthase shown here as an example—are proposed to function ...
Peyman Fahimi, Michael Lynch, Chérif F. Matta   +2 more
wiley   +1 more source