Liquid state 1H high field NMR in food analysis
Liquid state 1H high field NMR in food analysis
October 2012
Publication year: 2012
Source:Progress in Nuclear Magnetic Resonance Spectroscopy, Volume 66</br>
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nmrlearner
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12-01-2012 06:10 PM
TSAR: a program for automatic resonance assignment using 2D cross-sections of high dimensionality, high-resolution spectra
TSAR: a program for automatic resonance assignment using 2D cross-sections of high dimensionality, high-resolution spectra
Abstract While NMR studies of proteins typically aim at structure, dynamics or interactions, resonance assignments represent in almost all cases the initial step of the analysis. With increasing complexity of the NMR spectra, for example due to decreasing extent of ordered structure, this task often becomes both difficult and time-consuming, and the recording of high-dimensional data with high-resolution may be essential. Random sampling of the evolution time space,...
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07-20-2012 11:13 PM
High dimensional and high resolution pulse sequences for backbone resonance assignment of intrinsically disordered proteins
High dimensional and high resolution pulse sequences for backbone resonance assignment of intrinsically disordered proteins
Abstract Four novel 5D (HACA(N)CONH, HNCOCACB, (HACA)CON(CA)CONH, (H)NCO(NCA)CONH), and one 6D ((H)NCO(N)CACONH) NMR pulse sequences are proposed. The new experiments employ non-uniform sampling that enables achieving high resolution in indirectly detected dimensions. The experiments facilitate resonance assignment of intrinsically disordered proteins. The novel pulse sequences were successfully tested using δ subunit (20 kDa) of Bacillus subtilis RNA polymerase...
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02-21-2012 03:40 AM
High-resolution NMR field-cycling device for full-range relaxation and structural studies of biopolymers on a shared commercial instrument
High-resolution NMR field-cycling device for full-range relaxation and structural studies of biopolymers on a shared commercial instrument
Abstract Improvements are described in a shuttling field-cycling device (Redfield in Magn Reson Chem 41:753â??768, 2003), designed to allow widespread access to this useful technique by configuring it as a removable module to a commercial 500 MHz NMR instrument. The main improvements described here, leading to greater versatility, high reliability and simple construction, include: shuttling provided by a linear motor driven by an integrated-control...
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12-31-2011 10:40 AM
High resolution NMR spectroscopy of nanocrystalline proteins at ultra-high magnetic field
High resolution NMR spectroscopy of nanocrystalline proteins at ultra-high magnetic field
Abstract Magic-angle spinning (MAS) solid-state NMR (SSNMR) spectroscopy of uniformly-13C,15N labeled protein samples provides insight into atomic-resolution chemistry and structure. Data collection efficiency has advanced remarkably in the last decade; however, the study of larger proteins is still challenged by relatively low resolution in comparison to solution NMR. In this study, we present a systematic analysis of SSNMR protein spectra acquired at 11.7, 17.6 and 21.1 Tesla (1H frequencies of...
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01-09-2011 12:46 PM
[NMR paper] High-resolution 31p field cycling NMR as a probe of phospholipid dynamics.
High-resolution 31p field cycling NMR as a probe of phospholipid dynamics.
Related Articles High-resolution 31p field cycling NMR as a probe of phospholipid dynamics.
J Am Chem Soc. 2004 Oct 27;126(42):13765-77
Authors: Roberts MF, Redfield AG
We have used high-resolution field-cycling 31P NMR spectroscopy to measure spin-lattice relaxation rates (R1 = 1/T1) of multicomponent phospholipid vesicle and micelle samples over a large field range, from 0.1 to 11.7 T. The shape of the curve for R1 as a function of field and a model-free analysis were...
High-Resolution Zero-Field NMR J-Spectroscopyof Aromatic Compounds
Linear Mode
