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Works (41)
Updated: April 5th, 2024 05:26
2024 journal article
Peptoid-based macrodiscs of variable lipid composition for structural studies of membrane proteins by oriented-sample solid-state NMR
JOURNAL OF STRUCTURAL BIOLOGY-X, 9.
author keywords: Solid-state NMR; Magnetically aligned bilayers; Lipids; Peptoids; Membrane proteins; Spectroscopic resolution
doi.org (publisher)
Sources: Web Of Science, ORCID
Added: January 16, 2024
2022 journal article
Aligned peptoid-based macrodiscs for structural studies of membrane proteins by oriented-sample NMR
BIOPHYSICAL JOURNAL, 121(17), 3263–3270.
MeSH headings : Glycine; Lipids; Magnetic Resonance Spectroscopy; Membrane Proteins / chemistry; Peptoids / chemistry
TL;DR:
The NMR spectra measured for the membrane-bound form of Pf1 coat protein incorporated in this new lipid mimetics demonstrate a higher order parameter and uniform linewidths as compared to the conventional bicelles and peptide-based macrodiscs.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID
Added: October 11, 2022
2022 article
Validation of protein backbone structures calculated from NMR angular restraints using Rosetta (vol 73, pg 229, 2019)
Lapin, J., & Nevzorov, A. A. (2022, August 27). JOURNAL OF BIOMOLECULAR NMR.
TL;DR:
A framework for de-novo protein structure prediction using a combination of solid-state NMR angular restraints and bioinformatics is established and Rosetta was able to distinguish the most plausible structures.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: September 12, 2022
2021 journal article
Characterization of photonic band resonators for DNP NMR of thin film samples at 7 T magnetic field
JOURNAL OF MAGNETIC RESONANCE, 323.
author keywords: Solid-state NMR; Dynamic nuclear polarization; DNP; Synthetic diamonds; Photonic band gap resonator; Quasioptics
TL;DR:
It was found that average of B1e2 over the sample strongly depends on the arrangement of the dielectric layers that are the closest to the sample, which favors odd-numbered PBG resonator configurations for their use in DNP.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, ORCID
Added: March 8, 2021
2021 journal article
H-1/C-13/N-15 triple-resonance experiments for structure determinaton of membrane proteins by oriented-sample NMR
SOLID STATE NUCLEAR MAGNETIC RESONANCE, 111.
author keywords: NMR pulse sequence design; Triple-resonance experiments; Dipolar couplings; Separated local-field spectroscopy; ROULETTE; Membrane proteins; Structure determination; Heteronuclear correlations
MeSH headings : Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy / methods; Membrane Proteins / chemistry; Nuclear Magnetic Resonance, Biomolecular / methods; Protons
TL;DR:
The presented developments advance NMR of oriented samples for structure determination of membrane proteins and liquid crystals in solid-state NMR experiments.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: March 8, 2021
2020 journal article
Computer-generated pulse sequences for H-1-N-15 and H-1(alpha)-C-13(alpha) separated local-field experiments
JOURNAL OF MAGNETIC RESONANCE, 317.
author keywords: NMR pulse sequence design; Automation; Simulated annealing; GPU computing; Separated local field experiments; Dipolar couplings; PISEMA; SAMPI4; ROULETTE
TL;DR:
The new algorithm, in addition to finding pulse durations and phases, now searches for the optimal on/off application scheme of radio frequency irradiation on each channel, effectively optimizing every aspect of a pulse sequence instead of just phases and durations.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 24, 2020
2020 journal article
De novo NMR pulse sequence design using Monte-Carlo optimization techniques
JOURNAL OF MAGNETIC RESONANCE, 310.
MeSH headings : Algorithms; Bacteriophage Pf1 / chemistry; Capsid Proteins / chemistry; Computer Simulation; Crystallization; Hydrogen; Leucine / analogs & derivatives; Leucine / chemistry; Monte Carlo Method; Nitrogen Isotopes; Nuclear Magnetic Resonance, Biomolecular / methods
TL;DR:
A computational strategy was developed to find the optimal phases and timings that substantially improve the 1H-15N dipolar linewidths over a broad range of dipolar couplings as compared to SAMPI4.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: January 13, 2020
2020 journal article
NMR "Crystallography" for Uniformly (C-13, N-15)-Labeled Oriented Membrane Proteins
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 59(9), 3554–3557.
author keywords: dipolar couplings; membrane proteins; nuclear magnetic resonance; oriented samples; structure determination
MeSH headings : Carbon Isotopes / chemistry; Inovirus / metabolism; Isotope Labeling; Lipid Bilayers / chemistry; Lipid Bilayers / metabolism; Membrane Proteins / chemistry; Nitrogen Isotopes / chemistry; Nuclear Magnetic Resonance, Biomolecular; Viral Proteins / chemistry
TL;DR:
A new experimental triple-resonance NMR technique was applied to uniformly doubly labeled Pf1 coat protein in magnetically aligned DMPC/DHPC bicelles and yielded a consensus α-helical transmembrane structure for Pf1 protein.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: February 10, 2020
2019 journal article
Nesting Lipid Bilayers in Nanopores: Effect of Pore Diameter on Macroscopic Order and the Layer Count
Biophysical Journal, 116(3), 80a–81a.
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(OpenAlex)
Source: Crossref
Added: February 24, 2020
2019 journal article
Validation of protein backbone structures calculated from NMR angular restraints using Rosetta
JOURNAL OF BIOMOLECULAR NMR, 73(5), 229–244.
author keywords: Oriented-sample NMR; Angular restraints; Dipolar couplings; Chemical shift anisotropy; Membrane proteins; Structure determination; Rosetta
MeSH headings : Magnetic Resonance Spectroscopy / methods; Membrane Proteins / chemistry; Protein Conformation
TL;DR:
A significantly improved version of the algorithm which includes the fitting of several peptide planes at once in order to prevent propagation of error along the backbone and establishes a framework for de-novo protein structure prediction using a combination of solid-state NMR angular restraints and bioinformatics.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: July 1, 2019
2018 journal article
Automated assignment of NMR spectra of macroscopically oriented proteins using simulated annealing
Journal of Magnetic Resonance, 293, 104–114.
author keywords: Oriented-sample NMR; Crowded spectra; Spectroscopic assignment; Simulated annealing
MeSH headings : Algorithms; Amino Acids / chemistry; Automation; Bacteriophage Pf1 / chemistry; Capsid Proteins / chemistry; Monte Carlo Method; Nuclear Magnetic Resonance, Biomolecular / methods; Protein Conformation, alpha-Helical; Proteins / chemistry; Software
TL;DR:
An automated technique for the sequential assignment of NMR backbone resonances of oriented protein samples has been developed and tested based on 15N-15N homonuclear exchange and spin-exchanged separated local-field spectra and a consensus spectroscopic assignment is proposed covering 84% of the original assignment.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Source: Crossref
Added: February 24, 2020
2018 journal article
Multi-resonant photonic band-gap/saddle coil DNP probehead for static solid state NMR of microliter volume samples
JOURNAL OF MAGNETIC RESONANCE, 297, 113–123.
Contributors: n, S. Milikisiyants n, A. Marek n & A. Smirnov n
author keywords: Solid-state NMR; Dynamic nuclear polarization; DNP; Synthetic diamonds; Photonic band gap resonator; Quasioptics
TL;DR:
A one-dimensional photonic band-gap mmW resonator was constructed and tested that was incorporated inside a double-tuned radiofrequency (rf) NMR saddle coil and was the key element for constructing a multi-resonant integrated DNP/NMR probehead operating at 190-199 GHz EPR/300 MHz 1H/75.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, ORCID
Added: December 31, 2018
2018 journal article
Photonic band-gap resonators for high-field/high-frequency EPR of microliter-volume liquid aqueous samples
JOURNAL OF MAGNETIC RESONANCE, 296, 152–164.
Contributors: S. Milikisiyants n, n & A. Smirnov n
author keywords: Photonic crystals; High-field EPR; Resonators; Aqueous samples
MeSH headings : Algorithms; Ceramics / chemistry; Electromagnetic Fields; Electron Spin Resonance Spectroscopy / methods; Equipment Design; Gadolinium / chemistry; Gramicidin / chemistry; Lipid Bilayers / chemistry; Nanostructures; Photons; Porosity; Radio Waves; Water / chemistry
TL;DR:
A radically new line of high Q-factor mmW resonators that are based on forming lattice defects in one-dimensional photonic band-gap (PBG) structures composed of low-loss ceramic discs of λ/4 in thickness and having alternating dielectric constants are described.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
6. Clean Water and Sanitation
(OpenAlex)
Sources: Web Of Science, ORCID
Added: December 31, 2018
2018 journal article
Protein Rotational Dynamics in Aligned Lipid Membranes Probed by Anisotropic T-1 rho NMR Relaxation
BIOPHYSICAL JOURNAL, 114(2), 392–399.
MeSH headings : Anisotropy; Cell Membrane / chemistry; Cell Membrane / metabolism; Diffusion; Dimyristoylphosphatidylcholine / chemistry; Magnetic Resonance Spectroscopy; Membrane Proteins / chemistry; Membrane Proteins / metabolism; Micelles; Phospholipid Ethers / chemistry; Rotation
TL;DR:
The method illustrates the use of single-helix transmembrane peptides as molecular probes to assess the dynamic parameters of biological membranes by NMR relaxation in oriented lipid bilayers.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2018 journal article
Rotational Diffusion of Membrane Proteins Probed by Anisotropic T2 and T1ρ NMR Relaxation in Aligned Lipid Bilayers
Biophysical Journal, 114(3), 241a.
Source: Crossref
Added: August 28, 2020
2018 journal article
Uniaxial Diffusional Narrowing of NMR Lineshapes for Membrane Proteins Reconstituted in Magnetically Aligned Bicelles and Macrodiscs
APPLIED MAGNETIC RESONANCE, 49(12), 1335–1353.
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: December 17, 2018
2017 journal article
Selective excitation for spectral editing and assignment in separated local field experiments of oriented membrane proteins
Journal of Magnetic Resonance, 274, 7–12.
author keywords: Selective excitation; Soft Gaussian pulses; Separated local field experiments; SAMPI4; Spectral editing; Oriented samples; Membrane proteins; Solid-state NMR
MeSH headings : Algorithms; Amino Acids / chemistry; Isotope Labeling / methods; Leucine / analogs & derivatives; Leucine / chemical synthesis; Leucine / chemistry; Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy / methods; Membrane Proteins / chemistry; Micelles; Nitrogen Isotopes; Normal Distribution; Nuclear Magnetic Resonance, Biomolecular; Spin Labels
TL;DR:
A strategy to overcome poor spectral resolution in crowded regions of 2D spectra by selecting resolved "seed" residues via soft Gaussian pulses inserted into spin-exchange separated local-field experiments.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Crossref
Added: August 28, 2020
2017 journal article
Sensitivity enhancement for membrane proteins reconstituted in parallel and perpendicular oriented bicelles obtained by using repetitive cross-polarization and membrane-incorporated free radicals
JOURNAL OF BIOMOLECULAR NMR, 67(2), 135–144.
author keywords: Oriented-sample NMR (OS-NMR); Sensitivity enhancement; Paramagnetic relaxation enhancement; Repetitive cross-polarization; Membrane proteins; Pf1; Spectroscopic assignment; Magnetically aligned bicelles
MeSH headings : Bacteriophage Pf1; Free Radicals / chemistry; Magnetic Resonance Spectroscopy / methods; Magnetic Resonance Spectroscopy / standards; Membrane Proteins / chemistry; Signal-To-Noise Ratio; Viral Proteins / chemistry
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2017 journal article
Structure and Dynamics of Nanopore-Confined Membrane Proteins are Affected by Bilayer Lipid Composition
Biophysical Journal, 112(3), 388a.
TL;DR:
The improved nanopore alignment technique described here provides a general method for studying lipid-induced structural conformations of membrane proteins under physiologically relevant conditions by magnetic resonance.
(via Semantic Scholar)
Sources: Crossref, ORCID
Added: February 24, 2020
2016 journal article
Interactions of Antibacterial Peptides with Nanotubular Lipid Bilayers: Binding Kinetics and Distortions of the Bilayer Structure
Biophysical Journal, 110(3), 79a.
TL;DR:
The data relate peptide binding and lysis kinetics to structural changes in lipid bilayers, thus, shedding the light on the underlying multistep mechanism.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(OpenAlex)
Sources: Crossref, ORCID
Added: February 24, 2020
2015 journal article
Line narrowing in oriented-sample NMR of membrane proteins
Protein Nmr: Modern Techniques and Biomedical Applications, 32, 159–185.
Source: NC State University Libraries
Added: August 6, 2018
2015 journal article
Nanotube Array Method for Studying Lipid-Induced Conformational Changes of a Membrane Protein by Solid-State NMR
BIOPHYSICAL JOURNAL, 108(1), 5–9.
Contributors: A. Marek n, W. Tang n, S. Milikisiyants n, n & A. Smirnov n
MeSH headings : Aluminum Oxide / chemistry; Dimyristoylphosphatidylcholine / chemistry; Feasibility Studies; Least-Squares Analysis; Lipid Bilayers / chemistry; Membrane Proteins / chemistry; Microscopy, Electron, Scanning; Nanotubes / chemistry; Nitrogen Isotopes; Nuclear Magnetic Resonance, Biomolecular / methods; Phosphatidylcholines / chemistry; Phosphatidylglycerols / chemistry; Phosphorus Isotopes; Protein Structure, Secondary
TL;DR:
The anodic aluminum oxide alignment method is applicable to a broader repertoire of lipids versus bicelle bilayer mimetics currently employed in solid-state nuclear magnetic resonance of oriented samples, thus allowing for elucidation of the role played by lipids in shaping membrane proteins.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, ORCID
Added: August 6, 2018
2015 journal article
Optimization of cross-polarization at low radiofrequency fields for sensitivity enhancement in solid-state NMR of membrane proteins reconstituted in magnetically aligned bicelles
JOURNAL OF MAGNETIC RESONANCE, 256, 14–22.
author keywords: Repetitive cross-polarization (REP-CP); Multiple CP contacts; Low RF powers; Sensitivity enhancement; Oriented samples; Membrane proteins; Solid-state NMR
MeSH headings : Algorithms; Computer Simulation; Lipid Bilayers / chemistry; Magnetic Fields; Magnetic Resonance Spectroscopy / methods; Membrane Proteins / chemistry; Membrane Proteins / radiation effects; Membrane Proteins / ultrastructure; Models, Chemical; Models, Molecular; Protein Conformation; Radio Waves; Reproducibility of Results; Sensitivity and Specificity
TL;DR:
The recently developed repetitive cross-polarization (REP-CP) sequence is optimized to further increase the magnetization transfer efficiency for membrane proteins reconstituted in magnetically aligned bicelles and its performance is compared to single-contact Hartmann-Hahn cross- polarization, CP-MOIST and the adiabatic transfer.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2014 journal article
Coherent and stochastic averaging in solid-state NMR
JOURNAL OF MAGNETIC RESONANCE, 249, 9–15.
author keywords: Stochastic Liouville equation; Uniaxial diffusion; Motional averaging; Dipolar recoupling; Membrane proteins
TL;DR:
It has been shown that the rotational alignment method is applicable to membrane proteins approximated as cylinders with radii of approximately 20Å, for which uniaxial rotational diffusion within the bilayer is sufficiently fast and exceeds the rate 2×105s-1.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2014 journal article
Crosslinked PVA nanofibers reinforced with cellulose nanocrystals: Water interactions and thermomechanical properties
Journal of Applied Polymer Science, 131(11), n/a-n/a.
author keywords: cellulose and other wood products; composites; electrospinning; hydrophilic polymers; nanoparticles; nanowires and nanocrystals
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
6. Clean Water and Sanitation
(OpenAlex)
Sources: Crossref, Web Of Science, ORCID
Added: August 6, 2018
2014 journal article
Dynamic and Contrasting Information by Oriented-Sample Solid-State NMR Spectroscopy of Membrane Proteins
Biophysical Journal, 106(2), 192a.
TL;DR:
A model relating OS NMR lineshapes to uniaxial ordering (mosaic spread) and rotational diffusion of the protein within the membrane and the use of various membrane-embedded radicals allows one to both dramatically speed up data acquisition and obtain contrasting information for membrane- embedded proteins.
(via Semantic Scholar)
Source: Crossref
Added: February 24, 2020
2014 journal article
Sensitivity enhancement and contrasting information provided by free radicals in oriented-sample NMR of bicelle-reconstituted membrane proteins
JOURNAL OF MAGNETIC RESONANCE, 239, 9–15.
author keywords: Membrane proteins; Oriented samples; OS-NMR; Longitudinal relaxation time; Paramagnetic relaxation enhancement; PRE; Free radicals; Magnetically aligned bicelles
MeSH headings : Algorithms; Dimyristoylphosphatidylcholine / chemistry; Electron Spin Resonance Spectroscopy / methods; Free Radicals / chemistry; Lipid Bilayers; Lipids / chemistry; Membrane Proteins / chemistry; Nuclear Magnetic Resonance, Biomolecular / methods; Phospholipid Ethers / chemistry
TL;DR:
Through OS-NMR and high-field EPR studies, free radicals were able to provide positional constraints in the bicelle system, which provide a description of the location of each residue in Pf1 coat protein within the bicellar membranes, which can be useful in the determination of oligomerization states and immersion depths of larger membrane proteins.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2013 journal article
Grid-free powder averages: On the applications of the Fokker-Planck equation to solid state NMR
JOURNAL OF MAGNETIC RESONANCE, 235, 121–129.
author keywords: NMR; MAS; SLE; Fokker-Planck equation; State space restriction
TL;DR:
It is demonstrated that low correlation order basis sets apparently give accurate answers in powder-averaged MAS simulations, meaning that polynomially scaling simulation algorithms do exist for a large class of solid state NMR experiments.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2012 journal article
A spectroscopic assignment technique for membrane proteins reconstituted in magnetically aligned bicelles
JOURNAL OF BIOMOLECULAR NMR, 54(3), 307–316.
author keywords: Oriented-sample NMR (OS-NMR); Cross-polarization; Membrane proteins; Pf1; Spectroscopic assignment; Magnetically aligned bicelles; Mismatched Hartmann Hahn conditions
MeSH headings : Capsid Proteins / chemistry; Magnetics; Membrane Proteins / chemistry; Molecular Dynamics Simulation; Nuclear Magnetic Resonance, Biomolecular / methods; Protein Structure, Tertiary
TL;DR:
It is demonstrated that, by using a combination of the spin exchange under mismatched Hartmann-Hahn conditions and a recent sensitivity-enhancement REP-CP sequence, spectroscopic assignment of solid-state NMR spectra of Pf1 coat protein reconstituted in magnetically aligned bicelles can be significantly improved.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2012 journal article
NMR Spectroscopic Assignment and Structure Determination of Membrane Proteins Reconstituted in Magnetically Aligned Bicelles
Biophysical Journal, 102(3), 390a.
TL;DR:
A novel spectroscopic technique is used to obtain spin correlations between the resonances and assigned the spectrum of uniformly 15N labeled Pf1 protein reconstituted in aligned bicelles and developed an algorithm that calculates three-dimensional structures of membrane proteins solely based on the dipolar couplings between the covalently bound spins.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Crossref
Added: August 28, 2020
2011 journal article
Ergodicity and efficiency of cross-polarization in NMR of static solids
JOURNAL OF MAGNETIC RESONANCE, 209(2), 161–166.
author keywords: Cross-polarization; Ergodicity; Spin temperature; Quasiequilibria; Many-spin dynamics; Solid-state NMR
MeSH headings : Algorithms; Computer Simulation; Diffusion; Electromagnetic Fields; Electron Spin Resonance Spectroscopy; Leucine / analogs & derivatives; Leucine / chemistry; Magnetic Resonance Spectroscopy / methods; Membrane Proteins / chemistry
TL;DR:
A combination of a reverse cross-polarization experiment and multiple contacts is employed to show that the thermodynamic limit of magnetization cannot be transferred from high- to low-gamma nuclei in a single contact.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Inhibition of Acinetobacter baumannii biofilm formation on a methacrylate polymer containing a 2-aminoimidazole subunit
Chemical Communications, 47(17), 4896.
MeSH headings : Acinetobacter Infections / microbiology; Acinetobacter baumannii / drug effects; Acinetobacter baumannii / growth & development; Anti-Infective Agents / chemical synthesis; Anti-Infective Agents / pharmacology; Biofilms / drug effects; Gentian Violet / analysis; Imidazoles / chemical synthesis; Imidazoles / pharmacology; Methacrylates / chemistry; Polymers / chemistry
TL;DR:
This polymer was resistant to biofilm colonization by Acinetobacter baumannii, no leaching of the 2-aminoimidazole derivative was observed after 2 weeks of treatment with deionized water, and the resulting polymer was not hemolytic.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
6. Clean Water and Sanitation
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: August 6, 2018
2011 journal article
Orientational and Motional Narrowing of Solid-State NMR Lineshapes of Uniaxially Aligned Membrane Proteins
JOURNAL OF PHYSICAL CHEMISTRY B, 115(51), 15406–15414.
MeSH headings : Bacteriophage Pf1 / metabolism; Capsid Proteins / chemistry; Diffusion; Membrane Proteins / chemistry; Nitrogen Isotopes / chemistry; Nuclear Magnetic Resonance, Biomolecular
TL;DR:
A unified theory for the NMR line shapes of aligned membrane proteins arising from uniaxial disorder (mosaic spread) and global rotational diffusion about the director axis and a general method based on the Stochastic Liouville Equation makes it possible to bridge the static and dynamic limits in a single model.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Repetitive cross-polarization contacts via equilibration-re-equilibration of the proton bath: Sensitivity enhancement for NMR of membrane proteins reconstituted in magnetically aligned bicelles
JOURNAL OF MAGNETIC RESONANCE, 212(1), 245–248.
author keywords: Cross-polarization; Spin temperature; Multiple contacts; Sensitivity enhancement; Membrane proteins; Solid-state NMR
MeSH headings : Algorithms; Bacteriophage Pf1 / chemistry; Electromagnetic Fields; Membrane Proteins / chemistry; Nuclear Magnetic Resonance, Biomolecular / methods; Protons; Signal-To-Noise Ratio; Thermodynamics
TL;DR:
This work shows that multiple equilibrations-re-equilibrated reservoirs of the high- and low-spin reservoirs during the preparation period yield an over twofold gain in the magnetization transfer as compared to a single-contact cross polarization (CP), and up to 45% enhancement asCompared to the mismatch-optimized CP-MOIST scheme for bicelle-reconstituted membrane proteins.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2011 journal article
Structure determination in "shiftless" solid state NMR of oriented protein samples
JOURNAL OF MAGNETIC RESONANCE, 212(1), 64–73.
author keywords: "Shiftless" solid-state NMR; Dipolar couplings; Angular constraints; Non-planarity; Protein structure determination
MeSH headings : Algorithms; Anisotropy; Bacteriorhodopsins / chemistry; Carbon Isotopes; Models, Molecular; Nitrogen Isotopes; Nuclear Magnetic Resonance, Biomolecular / methods; Peptides / chemistry; Protein Structure, Secondary; Proteins / chemistry; Protons
TL;DR:
An efficient formalism for calculating protein structures from oriented-sample NMR data in the torsion-angle space is presented and the use of distance restraints dramatically improves structural convergence even if larger experimental uncertainties are assumed.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2010 journal article
A Resonance Assignment Method for Oriented-Sample Solid-State NMR of Proteins
Journal of the American Chemical Society, 132(24), 8255–8257.
MeSH headings : Bacteriophage Pf1 / chemistry; Nuclear Magnetic Resonance, Biomolecular / methods; Proteins / chemistry
TL;DR:
A general sequential assignment strategy for uniformly (15)N-labeled uniaxially aligned membrane proteins is proposed and will find use in assigning solid-state NMR spectra of oriented membrane proteins for their subsequent structure determination.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Crossref, NC State University Libraries
Added: August 6, 2018
2009 journal article
High-resolution local field spectroscopy with internuclear correlations
JOURNAL OF MAGNETIC RESONANCE, 201(1), 111–114.
author keywords: High-resolution separated local field spectroscopy; Intermolecular correlations; Dilute-spin exchange; SAMP14
MeSH headings : Algorithms; Electron Spin Resonance Spectroscopy; Magnetic Resonance Spectroscopy / methods; Membrane Proteins / chemistry; Membranes / chemistry; Protons
TL;DR:
A pulse sequence which incorporates the previously established mismatched Hartmann-Hahn mixing of dilute spins via the proton bath together with high-resolution local field spectroscopy and the use of dipolar couplings in the indirect dimension helps eliminate the spectral crowdedness compared to the standard homonuclear correlation techniques.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2008 journal article
Mismatched Hartmann-Hahn conditions cause proton-mediated intermolecular magnetization transfer between dilute low-spin nuclei in NMR of static solids
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 130(34), 11282-+.
MeSH headings : Acetylation; Computer Simulation; Leucine / analogs & derivatives; Magnetic Resonance Spectroscopy / methods; Membrane Proteins / analysis; Membrane Proteins / chemistry; Membrane Proteins / metabolism; Nanoparticles / chemistry; Nitrogen Isotopes / chemistry; Protons; Quantum Theory; Spin Labels
TL;DR:
The theory and experiment presented in the present paper may help in the development of solid-state NMR methods for studying interhelical contacts in membrane proteins, as well as for their spectral assignment.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2007 journal article
Selective averaging for high-resolution solid-state NMR spectroscopy of aligned samples
Journal of Magnetic Resonance, 185(1), 59–70.
author keywords: selective averaging; average Hamiltonian theory; separated local field spectroscopy; homonuclear decoupling; SAMP14; SAMMY; PISEMA
MeSH headings : Algorithms; Anisotropy; Computer Simulation; Data Interpretation, Statistical; Models, Chemical; Nuclear Magnetic Resonance, Biomolecular / methods; Powders; Proteins / chemistry; Protons; Sample Size; Sensitivity and Specificity; Signal Processing, Computer-Assisted
TL;DR:
A quantum-mechanical treatment of the spin Hamiltonians under high-power rF pulses is presented which gives the scaling factor for SAMPI4 as well as the durations of the rf pulses to achieve optimal decoupling.
(via Semantic Scholar)
Source: Crossref
Added: August 28, 2020
2007 review
Solid-State H-2 NMR spectroscopy of retinal proteins in aligned membranes
[Review of ]. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES, 1768(12), 2979–3000.
author keywords: bacteriorhodopsin; G protein-coupled receptor; membrane; proton pump; solid-state NMR; retinal; rhodopsin; vision
MeSH headings : Animals; Bacteriorhodopsins / chemistry; Humans; Magnetic Resonance Spectroscopy / methods; Membrane Proteins / chemistry; Models, Molecular; Molecular Structure; Retinaldehyde / chemistry; Rhodopsin / chemistry
TL;DR:
Comparison of the two retinal proteins using solid-state 2H NMR is thus illuminating in terms of their different biological functions.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2007 journal article
Three-dimensional experiment for solid-state NMR of aligned protein samples in high field magnets
Journal of Biomolecular NMR, 37(2), 113–116.
author keywords: bicelle; membrane protein; aligned sample; protein structure
MeSH headings : Capsid Proteins / chemistry; Hydrogen; Magnetics; Nitrogen Isotopes; Nuclear Magnetic Resonance, Biomolecular; Time Factors
TL;DR:
The 1H chemical shift frequency dimension is shown to select among amide resonances, which will be useful in studies of larger polytopic membrane proteins where the resonances overlap in two-dimensional spectra.
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Added: August 28, 2020
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