Results 11 to 20 of about 30,422 (298)

Studies of transmembrane peptides by pulse dipolar spectroscopy with semi-rigid TOPP spin labels. [PDF]

open access: yesEur Biophys J, 2021
Electron paramagnetic resonance (EPR)-based pulsed dipolar spectroscopy measures the dipolar interaction between paramagnetic centers that are separated by distances in the range of about 1.5–10 nm.
Tkach I, Diederichsen U, Bennati M.
europepmc   +2 more sources

Strategies to identify and suppress crosstalk signals in double electron–electron resonance (DEER) experiments with gadoliniumIII and nitroxide spin-labeled compounds [PDF]

open access: yesMagnetic Resonance, 2020
Double electron–electron resonance (DEER) spectroscopy applied to orthogonally spin-labeled biomolecular complexes simplifies the assignment of intra- and intermolecular distances, thereby increasing the information content per sample.
M. Teucher   +5 more
doaj   +1 more source

Light-induced pulsed dipolar spectroscopy and other electron spin resonance studies of photogenerated paramagnetic species [PDF]

open access: yes, 2023
This thesis is concerned with the development of new methodologies in the field of Light-induced Pulsed Electron Spin Resonance Dipolar Spectroscopy (LiPDS), with the aim of applying them to the structural investigation of complex biological ...
Bertran, Arnau
core   +1 more source

Site-specific structural order in Alzheimer's Aβ42 fibrils [PDF]

open access: yesRoyal Society Open Science, 2018
Deposition of amyloid fibrils is a pathological hallmark of Alzheimer's disease. Aβ42 is the major protein whose aggregation leads to the formation of these fibrils.
Hongsu Wang   +3 more
doaj   +1 more source

Spin-labeled lipid A [PDF]

open access: yesAnalytical Biochemistry, 2008
Lipopolysaccharide (LPS), a major component of the outer membranes of gram-negative bacteria, is composed of a polysaccharide chain attached to a lipid A base that contains a disaccharide headgroup with two negative phosphate groups and at least four acyl chains.
Lynn E, Bretscher   +2 more
openaire   +2 more sources

RosettaEPR: rotamer library for spin label structure and dynamics. [PDF]

open access: yesPLoS ONE, 2013
An increasingly used parameter in structural biology is the measurement of distances between spin labels bound to a protein. One limitation to these measurements is the unknown position of the spin label relative to the protein backbone. To overcome this
Nathan S Alexander   +5 more
doaj   +1 more source

chiLife: An open-source Python package for in silico spin labeling and integrative protein modeling.

open access: yesPLoS Computational Biology, 2023
Here we introduce chiLife, a Python package for site-directed spin label (SDSL) modeling for electron paramagnetic resonance (EPR) spectroscopy, in particular double electron-electron resonance (DEER).
Maxx H Tessmer, Stefan Stoll
doaj   +1 more source

Spin-labeled polyribonucleotides [PDF]

open access: yesNucleic Acids Research, 1980
Poly (U), poly (C) and poly (A) were spin labeled with N-(2,2,5,5-tetramethyl-3-carbonylpyrroline-1-oxyl)-imidazole. This spin label interacts selectively with 2' OH ribose groups of polynucleotides and does not modify the nucleic acid bases. The extent of spin labeling is not dependent upon the nature of the base and is entirely determined by rigidity
A I, Petrov, B I, Sukhorukov
openaire   +2 more sources

Molecular Oxygen as a Probe Molecule in EPR Spin Labeling Studies of Membrane Structure and Dynamics

open access: yesOxygen, 2022
Molecular oxygen (O2) is the perfect probe molecule for membrane studies carried out using the saturation recovery EPR technique. O2 is a small, paramagnetic, hydrophobic enough molecule that easily partitions into a membrane’s different phases and ...
Witold K. Subczynski   +3 more
doaj   +1 more source

Structural Impact of Selected Retinoids on Model Photoreceptor Membranes

open access: yesMembranes, 2023
Photoreceptor membranes have a unique lipid composition. They contain a high level of polyunsaturated fatty acids including the most unsaturated fatty acid in nature, docosahexaenoic acid (22:6), and are enriched in phosphatidylethanolamines.
Szymon Radzin   +8 more
doaj   +1 more source

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