Spin-labeled polyribonucleotides [PDF]
Nucleic 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
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RosettaEPR: rotamer library for spin label structure and dynamics. [PDF]
PLoS 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
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chiLife: An open-source Python package for in silico spin labeling and integrative protein modeling.
PLoS 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
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Structural Impact of Selected Retinoids on Model Photoreceptor Membranes
Membranes, 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
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Thermostimulated crystal structure transformation of the polymineral clay submicron particles
Cerâmica, 2022 Changes in the structure of phyllosilicate microparticles of submicron fractions of polymineral clay with an average size of 290 nm, as well as changes in the positions of impurity ions of transition metals in the crystal lattice, were studied by X-ray ...
A. G. Chetverikova +4 more
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Molecular Oxygen as a Probe Molecule in EPR Spin Labeling Studies of Membrane Structure and Dynamics
Oxygen, 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
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Evidence for an Ordering Transition near 120 K in an Intrinsically Disordered Protein, Casein
Molecules, 2021 Intrinsically disordered proteins (IDPs) are proteins that possess large unstructured regions. Their importance is increasingly recognized in biology but their characterization remains a challenging task.
Natalya A. Maslennikova +2 more
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Spin Labeling of Surface Cysteines Using a Bromoacrylaldehyde Spin Label [PDF]
Applied Magnetic Resonance, 2021 AbstractStructural investigations of proteins and their biological complexes are now frequently complemented by distance constraints between spin labeled cysteines generated using double electron–electron resonance (DEER) spectroscopy, via site directed spin labeling (SDSL).
Graham Heaven +3 more
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THE DYNAMICS OF HEMERYTHRIN AND HEMERYTHRIN DERIVATIVES
Studia Universitatis Babes-Bolyai Chemia, 2021 The non-heme diiron protein hemerythrin (Hr) has been considered as a possible alternative for semi-artificial oxygen carriers (“blood substitutes”).
Francisco CARRASCOZA +2 more
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Electron Spin Relaxation of Photoexcited Porphyrin in Water—Glycerol Glass
Molecules, 2020 Recently, the photoexcited triplet state of porphyrin was proposed as a promising spin-label for pulsed dipolar electron paramagnetic resonance (EPR).
Natalya Sannikova +5 more
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