Results 41 to 50 of about 30,422 (298)

Spin Probes as Scavengers of Free Radicals in Cells

Applied Sciences, 2022
Spin probes can be used to monitor biological membranes, including the penetration of different molecules into cells. The aim of the present studies was an investigation of the endocytosis process of two spin labels—2,2,6,6-Tetramethylpiperidine-1-oxyl ...
Bernadeta Dobosz, Ryszard Krzyminiewski, Małgorzata Kucińska, Marek Murias, Grzegorz Schroeder, Joanna Kurczewska   +5 more
doaj   +1 more source

Configurations of the spin-labels attached to T4 lysozyme. [PDF]

, 2015
(A) A snapshot of the T4 lysozyme system with 34 MTSSL spin-labels. The spin-label at each site has 25 copies and highlighted in the ball-and-stick representation.
Giacomo Fiorin (818802), Rong Shen (411483), Wei Han (151406), Klaus Schulten (102849), Benoît Roux (47999), Shahidul M. Islam (818803)   +5 more
core   +1 more source

Spin Labeling of RNA Using “Click” Chemistry for Coarse-grained Structure Determination via Pulsed Electron-electron Double Resonance Spectroscopy

Bio-Protocol, 2021
Understanding the function of oligonucleotides on a molecular level requires methods for studying their structure, conformational changes, and internal dynamics.
Maria Vicino, Tobias Hett, Olav Schiemann   +2 more
doaj   +1 more source

Spin-Labeled Neurospora Mitochondria

Biophysical Journal, 1970
Spin-label studies were carried out on Neurospora mitochondria under in vivo and in vitro labeling conditions. A long-chained spin-labeled fatty acid was incorporated by Neurospora and was found in mitochondrial phospholipids. The molecular motion at various temperatures was different from that for the same spin label under in vitro labeling conditions.
Keith, Alec, Bulfield, Grahame, Snipes, Wallace.   +2 more
openaire   +3 more sources

An efficient EPR spin-labeling method enables insights into conformational changes in DNA

Biophysical Reports
Electron paramagnetic resonance (EPR) is a powerful tool for elucidating both static and dynamic conformational alterations in macromolecules. However, to effectively utilize EPR for such investigations, the presence of paramagnetic centers, known as ...
Melanie Hirsch, Lukas Hofmann, Idan Yakobov, Shirin Kahremany, Hila Sameach, Yulia Shenberger, Lada Gevorkyan-Airapetov, Sharon Ruthstein   +7 more
doaj   +1 more source

SDSL-ESR-based protein structure characterization [PDF]

, 2010
As proteins are key molecules in living cells, knowledge about their structure can provide important insights and applications in science, biotechnology, and medicine.
Hemminga, M.A., Ljubetic, A., Hemminga, M. A., Strancar, J., Urbancic, I., Kavalenka, A.A., Kavalenka, A.   +6 more
core   +1 more source

Perturbation of membrane dynamics in nerve cells as an early event during bilirubin-induced apoptosis

Journal of Lipid Research, 2002
Increased levels of unconjugated bilirubin, the end product of heme catabolism, impair crucial aspects of nerve cell function. In previous studies, we demonstrated that bilirubin toxicity may be due to cell death by apoptosis.
Cecília M.P. Rodrigues, Susana Solá, Rui E. Castro, Pedro A. Laires, Dora Brites, José J.G. Moura   +5 more
doaj   +1 more source

Detection of molecular transitions with nitrogen-vacancy centers and electron-spin labels

npj Quantum Information, 2022
We present a protocol that detects molecular conformational changes with two nitroxide electron-spin labels and a nitrogen-vacancy (NV) center in diamond.
C. Munuera-Javaloy, R. Puebla, B. D’Anjou, M. B. Plenio, J. Casanova   +4 more
doaj   +1 more source

Spin-labels in biochemistry

Biochemical Society Transactions, 1985
and P-700 (Heathcote & Evans, 1981). The existence of a group of electron acceptors with a range of redox potentials which can be sequentially reduced by the appropriate lowtemperature illumination regimens suggests that these components form an electron-transport chain t o transfer electrons from the excited-state P-700 t o ferredoxin, allowing rapid ...
openaire   +3 more sources

SPIN-LABELED TRANSFER RNA [PDF]

Proceedings of the National Academy of Sciences, 1969
The α-amino group of valyl-tRNA has been combined chemically with a nitroxide spin label through an amide linkage. This spin-labeled aminoacyl-tRNA has an electron paramagnetic resonance spectrum which reflects the mobility of the aminoacyl end of the tRNA molecule.
B M, Hoffman, P, Schofield, A, Rich
openaire   +2 more sources