Related ArticlesTime-domain signal modelling in multidimensional NMR experiments for estimation of relaxation parameters.
J Biomol NMR. 2019 May 04;:
Authors: Matviychuk Y, Bostock MJ, Nietlispach D, Holland DJ
Abstract
We present a model-based method for estimation of relaxation parameters from time-domain NMR data specifically suitable for processing data in popular 2D phase-sensitive experiments. Our model is formulated in terms of commutative bicomplex algebra, which allows us to use the complete information available in an NMR signal acquired with principles of quadrature detection without disregarding any of its dimensions. Compared to the traditional intensity-analysis method, our model-based approach offers an important advantage for the analysis of overlapping peaks and is robust over a wide range of signal-to-noise ratios. We assess its performance with simulated experiments and then apply it for determination of [Formula: see text],*[Formula: see text], and*[Formula: see text] relaxation rates in datasets of a protein with more than 100 cross peaks.
PMID: 31055682 [PubMed - as supplied by publisher]
Time-domain signal modelling in multidimensional NMR experiments for estimation of relaxation parameters
Time-domain signal modelling in multidimensional NMR experiments for estimation of relaxation parameters
Abstract
We present a model-based method for estimation of relaxation parameters from time-domain NMR data specifically suitable for processing data in popular 2D phase-sensitive experiments. Our model is formulated in terms of commutative bicomplex algebra, which allows us to use the complete information available in an NMR signal acquired with principles of quadrature detection without disregarding any of its dimensions. Compared to the...
Evaluating the influence of initial magnetization conditions on extracted exchange parameters in NMR relaxation experiments: applications to CPMG and CEST
Evaluating the influence of initial magnetization conditions on extracted exchange parameters in NMR relaxation experiments: applications to CPMG and CEST
Abstract
Transient excursions of native protein states to functionally relevant higher energy conformations often occur on the ÎĽsâ??ms timescale. NMR spectroscopy has emerged as an important tool to probe such processes using techniques such as Carrâ??Purcellâ??Meiboomâ??Gill (CPMG) relaxation dispersion and Chemical Exchange Saturation Transfer (CEST). The extraction of kinetic and...
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[Question from NMRWiki Q&A forum] Choice of relaxation delay time (d1) in 2D experiments.
Choice of relaxation delay time (d1) in 2D experiments.
Hi,
Most people tend to use a lower d1 for 2D than for 1D. Help me understand why.
Furthermore, supposing you know your T1 value, what do you think is the "best" (or most effective while having the shortest experiment time) value for d1 in a 2D experiment?
I'm not even sure my question makes any sense.
[NMRpipe Yahoo group] Re: Signal-to-noise estimation
Re: Signal-to-noise estimation
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[NMRpipe Yahoo group] Signal-to-noise estimation
Signal-to-noise estimation
Hello! I am new in "NMR world". I have some basic questions regarding the NMRPipe. I would like to know if there is a manner to estimate the signal-to-noise
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12-25-2011 10:35 PM
Numerical estimation of relaxation and diffusion distributions in two dimensions
Numerical estimation of relaxation and diffusion distributions in two dimensions
Publication year: 2011
Source: Progress in Nuclear Magnetic Resonance Spectroscopy, In Press, Accepted Manuscript, Available online 21 July 2011</br>
J., Mitchell , T.C., Chandrasekera , L.F., Gladden</br>
Graphical abstract
*Graphical abstract:**Highlights:*?We review two-dimensional inversion methods for NMR data. ? Methods reviewed are applicable to relaxation time or diffusion data. ? Solutions to Fredholm integral equations of the first kind are presented. ? Selection of optimum smoothing for...