Related ArticlesNon-stationary complementary non-uniform sampling (NOSCO NUS) for fast acquisition of serial 2D NMR titration data.
Angew Chem Int Ed Engl. 2020 Aug 27;:
Authors: Romero JA, Nawrocka EK, Shchukina A, Blanco FJ, Diercks T, Kazimierczuk K
Abstract
NMR spectroscopy offers unique benefits for ligand binding studies on isotopically labelled target proteins, such as atomic resolution, direct distinction of binding sites and modes, lowest detectable affinity limit, and function independent setup. Yet, retracing protein signal assignments from apo *to holo *states to derive exact dissociation constants and Chemical Shift Perturbation *amplitudes (for ligand docking and structure-based optimization) requires lengthy titration series of 2D heteronuclear correlation spectra at variable ligand concentration that may exceed the protein's lifetime and available spectrometer time. We present a novel method to overcome this critical limitation, based on non-stationary complementary non-uniform sampling (NOSCO NUS) combined with a robust particle swarm algorithm. We illustrate its potential in two challenging studies with very distinct protein size and binding affinities, showing that NOSCO NUS can reduce measurement times by an order of magnitude to make such highly informative NMR titration studies more broadly feasible.
PMID: 32852098 [PubMed - as supplied by publisher]
[NMR paper] Lipid-nanodiscs formed by paramagnetic metal chelated polymer for fast NMR data acquisition.
Lipid-nanodiscs formed by paramagnetic metal chelated polymer for fast NMR data acquisition.
Related Articles Lipid-nanodiscs formed by paramagnetic metal chelated polymer for fast NMR data acquisition.
Biochim Biophys Acta Biomembr. 2020 Apr 30;:183332
Authors: Di Mauro GM, Hardin NZ, Ramamoorthy A
Abstract
Lipid-nanodiscs have been shown to be an exciting innovation as a membrane-mimicking system for studies on membrane proteins by a variety of biophysical techniques, including NMR spectroscopy. Although NMR spectroscopy is...
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05-05-2020 04:08 AM
Joint non-uniform sampling of all incremented time delays for quicker acquisition in protein relaxation studies
Joint non-uniform sampling of all incremented time delays for quicker acquisition in protein relaxation studies
Abstract
NMR relaxometry plays crucial role in studies of protein dynamics. The measurement of longitudinal and transverse relaxation rates of \(^{15}\) N is the main source of information on backbone motions. However, even the most basic approach exploiting a series of \(^{15}\) ...
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05-16-2017 06:53 AM
[NMR paper] Entire-Dataset Analysis of NMR Fast-Exchange Titration Spectra: A Mg(2+) Titration Analysis for HIV-1 Ribonuclease H Domain.
Entire-Dataset Analysis of NMR Fast-Exchange Titration Spectra: A Mg(2+) Titration Analysis for HIV-1 Ribonuclease H Domain.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--pubs.acs.org-images-pubmed-acspubs.jpg Related Articles Entire-Dataset Analysis of NMR Fast-Exchange Titration Spectra: A Mg(2+) Titration Analysis for HIV-1 Ribonuclease H Domain.
J Phys Chem B. 2016 Dec 15;120(49):12420-12431
Authors: Karki I, Christen MT, Spiriti J, Slack RL, Oda M, Kanaori K, Zuckerman DM, Ishima R
Abstract
This...
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[U. of Ottawa NMR Facility Blog] Non-uniform Sampling (NUS)
Non-uniform Sampling (NUS)
Collecting 2D or 3D NMR data can be very time consuming. The indirect dimension of a 2D experiment is sampled linearly via the t1 increments in the pulse sequence. An FID must be collected for every single linearly spaced t1 increment. In the interest in collecting 2D or 3D NMR data in a more time efficient manner, a great deal of effort is made towards faster data collection techniques. While some of these methods are based on spatial selectivity, others are based on sparse sampling techniques in the indirect dimensions of nD NMR sequences. One such sparse...
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05-11-2016 08:04 PM
[NMR paper] Non-uniform sampling of NMR relaxation data.
Non-uniform sampling of NMR relaxation data.
Related Articles Non-uniform sampling of NMR relaxation data.
J Biomol NMR. 2016 Feb 4;
Authors: Linnet TE, Teilum K
Abstract
The use of non-uniform sampling of NMR spectra may give significant reductions in the data acquisition time. For quantitative experiments such as the measurement of spin relaxation rates, non-uniform sampling is however not widely used as inaccuracies in peak intensities may lead to errors in the extracted dynamic parameters. By systematic reducing the coverage...
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02-06-2016 03:10 PM
Non-uniform sampling of NMR relaxation data
Non-uniform sampling of NMR relaxation data
Abstract
The use of non-uniform sampling of NMR spectra may give significant reductions in the data acquisition time. For quantitative experiments such as the measurement of spin relaxation rates, non-uniform sampling is however not widely used as inaccuracies in peak intensities may lead to errors in the extracted dynamic parameters. By systematic reducing the coverage of the Nyquist grid of 15N Carr-Purcell-Meiboom-Gill (CPMG) relaxation dispersion datasets for four different proteins and performing a full...
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02-05-2016 02:38 PM
Fast NMR Data Acquisition From Bicelles Containing a Membrane-Associated Peptide at Natural-Abundance.
Fast NMR Data Acquisition From Bicelles Containing a Membrane-Associated Peptide at Natural-Abundance.
Fast NMR Data Acquisition From Bicelles Containing a Membrane-Associated Peptide at Natural-Abundance.
J Phys Chem B. 2011 Sep 22;
Authors: Yamamoto K, Vivekanandan S, Ramamoorthy A
Abstract
In spite of recent technological advances in NMR spectroscopy, its low sensitivity continues to be a major limitation particularly for the structural studies of membrane proteins. The need for a large quantity of a membrane protein and acquisition of...
Non-stationary complementary non-uniform sampling (NOSCO NUS) for fast acquisition of serial 2D NMR titration data.
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