Results 41 to 50 of about 5,688 (181)

Cross-correlated photon scattering during the photocycle of bacteriorhodopsin

, 1990
Changes in the ultraviolet light scattering from a suspension of purple membrane fragments were detected during the photocycle of bacteriorhodopsin with a cross-correlation method.
Czégé, J., Reinisch, L.
core   +1 more source

Responses of Fruit Flies (Diptera: Tephritidae) to Protein Bait Applied at Different Densities

Journal of Applied Entomology, Volume 150, Issue 6, Page 736-742, July 2026.
ABSTRACT The effectiveness of odour‐based lures for insects is related to their active space, the air volume around an odour source in which an insect will detect and move towards it. This principle applies to protein baits laced with toxicants that are used as either sprays or stations to suppress pest fruit fly populations.
Msizi R. Ramaoka, Aruna Manrakhan, Christopher W. Weldon   +2 more
wiley   +1 more source

Unraveling the 13C Hyperfine Structure of the 5‐Deazaflavin Radical in Solution Using Photo‐CIDNP Spectroscopy

ChemPhotoChem, Volume 10, Issue 6, June 2026.
The 13C hyperfine structure of the 5‐deazaflavin radical is elucidated by photo‐chemically induced dynamic nuclear polarization spectroscopy and compared to the flavin radical. Despite structural similarity to flavins, 5‐deazaflavins were long thought to act only as two‐electron transfer agents.
Sabrina Panter, Audrey Ayekoi, Boris Illarionov, Jing Chen, Adelbert Bacher, Markus Fischer, Stefan Weber   +6 more
wiley   +1 more source

Branching reactions in the photocycle of bacteriorhodopsin

FEBS Letters, 1978
The purple membrane of Halobacterium halobium acts as a light-driven proton pump [ 11. It contains a single protein to which a retinal is bound via a protonated Schiff-base [2,3]. This protein-retinal complex, bacteriorhodopsin (BR), undergoes a reaction cycle involving several intermediates after light absorption.
Korenstein, Rafi, Hess, Benno, Kuschmitz, Dietrich   +2 more
openaire   +2 more sources

Monodirectional Photocycle Drives Proton Translocation

Journal of the American Chemical Society, 2023
Photoisomerization of retinal is pivotal to ion translocation across the bacterial membrane and has served as an inspiration for the development of artificial molecular switches and machines. Light-driven synthetic systems in which a macrocyclic component transits along a nonsymmetric axle in a specific direction have been reported; however ...
Nol Duindam, Michelle van Dongen, Maxime A. Siegler, Sander J. Wezenberg   +3 more
openaire   +3 more sources

How Many M Forms are there in the Bacteriorhodopsin Photocycle?

, 1986
On capturing a quantum of light, the bacteriorhodopsin of Halobacterium halobium undergoes a photocycle involving different intermediates. The exact scheme of the photocycle and especially the number of M intermediates are subjects of debate.
Dancshazy, Zs., Groma, G.I.
core   +1 more source

Characterization of photocycle intermediates in crystalline photoactive yellow protein.

, 2003
The photocycle in photoactive yellow protein (PYP) crystals was studied by single-crystal absorption spectroscopy with experimental setups for low-temperature and time-resolved measurements.
Friedrich Schottez, Crielaard, W., Wim Crielaard, Ravelli, Raimond B G, Hellingwerf, K.J., Crielaard, Wim, Wulff, Michael, Dominique Bourgeois, Kort, Remco; id_orcid, Schotte, F., Wulff, M., Hellingwerf, Klaas J, Ravelli, R.B., Kort, Remco, Klaas J. Hellingwerf, Schotte, Friedrich, Bourgeois, Dominique, Raimond B. Ravelli, Michael Wulff, Kort, R., Bourgeois, D., Remco Kort   +21 more
core   +1 more source

Chronic attenuation of brain leptin signalling is associated with early metabolic dysfunction in lean rats

The Journal of Physiology, Volume 604, Issue 12, Page 4717-4744, 15 June 2026.
Abstract figure legend Central leptin signalling blockade induces early metabolic dysfunction. Intracerebroventricular infusion of a leptin receptor antagonist (SLA) in rats disrupts hypothalamic leptin signalling, leading to reduced signal transducer and activator of transcription 3 (STAT3) activation, decreased Socs3 and Pomc expression, and ...
Cristina Pintado, Lorena Mazuecos, Óscar Gómez‐Torres, Beatriz Merino, Elena Casanueva‐Álvarez, Blanca Rubio, Emma Burgos‐Ramos, Sara Artigas‐Jerónimo, Eduardo Moltó, Inés María Ramos, Justa María Poveda, Germán Perdomo, Irene Cózar‐Castellano, Carmen Arribas, Ernesto Bernal‐Mizrachi, Antonio Andrés, Nilda Gallardo   +16 more
wiley   +1 more source

photocyclization

, 2014
Citation: 'photocyclization' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.PT07450 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

N-like intermediate in the photocycle of the acid purple form of bacteriorhodopsin

, 1997
The photocycle of the acid-purple form of bacteriorhodopsin (BR) was studied by multiwavelength absorption kinetic measurements. The data were evaluated using a new method based on the differences in the kinetics of the absorption changes at different ...
Tokaji, Zsolt, András Dér, Keszthelyi, Lajos, Dér, András, Lajos Keszthelyi, Zsolt Tokaji   +5 more
core   +1 more source