Related ArticlesPASE (PAramagnetic signals enhancement): a new method for NMR study of paramagnetic proteins.
J Magn Reson. 1998 Sep;134(1):154-7
Authors: Bondon A, Mouro C
A new method for NMR spectra acquisition of paramagnetic proteins is described, based on the simple use of homonuclear broadband decoupling of the diamagnetic region. Several advantages are associated with this method which was applied to one-dimensional spectra, to 1D NOE-difference spectroscopy, and to 2D NOESY. The main advantage is a very flat baseline obtained using the PASE (paramagnetic signals enhancement) method. Furthermore, the bulky region of the diamagnetic protons being suppressed, clean NOE-difference spectra can be acquired as well as improved 2D NOESY maps. Applications on 1D 1H spectrum of bovine liver catalase (MW 230,000), and 1D and 2D on the high-spin form of the myoglobin, used as a model protein, are presented.
Paramagnetic relaxation enhancement to improve sensitivity of fast NMR methods: application to intrinsically disordered proteins
Paramagnetic relaxation enhancement to improve sensitivity of fast NMR methods: application to intrinsically disordered proteins
Abstract We report enhanced sensitivity NMR measurements of intrinsically disordered proteins in the presence of paramagnetic relaxation enhancement (PRE) agents such as Ni2+-chelated DO2A. In proton-detected 1H-15N SOFAST-HMQC and carbon-detected (H-flip)13CO-15N experiments, faster longitudinal relaxation enables the usage of even shorter interscan delays. This results in higher NMR signal intensities per units of experimental time, without adverse line...
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10-21-2011 10:04 PM
Automated sequence- and stereo-specific assignment of methyl-labeled proteins by paramagnetic relaxation and methylâ??methyl nuclear overhauser enhancement spectroscopy
Automated sequence- and stereo-specific assignment of methyl-labeled proteins by paramagnetic relaxation and methylâ??methyl nuclear overhauser enhancement spectroscopy
Abstract Methyl-transverse relaxation optimized spectroscopy is rapidly becoming the preferred NMR technique for probing structure and dynamics of very large proteins up to ~1 MDa in molecular size. Data interpretation, however, necessitates assignment of methyl groups which still presents a very challenging and time-consuming process. Here we demonstrate that, in combination with a known 3D structure, paramagnetic...
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09-26-2011 06:42 AM
Solid-State NMR of a Large Membrane Protein by Paramagnetic Relaxation Enhancement.
Solid-State NMR of a Large Membrane Protein by Paramagnetic Relaxation Enhancement.
Solid-State NMR of a Large Membrane Protein by Paramagnetic Relaxation Enhancement.
J Phys Chem Lett. 2011 Jul 21;2(14):1836-1841
Authors: Tang M, Berthold DA, Rienstra CM
Membrane proteins play an important role in many biological functions. Solid-state NMR spectroscopy is uniquely suited for studying structure and dynamics of membrane proteins in a membranous environment. The major challenge to obtain high quality solid-state NMR spectra of membrane proteins is...
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08-16-2011 01:19 PM
[NMR paper] Paramagnetic NMR study of Cu(2+)-IDA complex localization on a protein surface and it
Paramagnetic NMR study of Cu(2+)-IDA complex localization on a protein surface and its application to elucidate long distance information.
Related Articles Paramagnetic NMR study of Cu(2+)-IDA complex localization on a protein surface and its application to elucidate long distance information.
FEBS Lett. 2004 May 21;566(1-3):157-61
Authors: Nomura M, Kobayashi T, Kohno T, Fujiwara K, Tenno T, Shirakawa M, Ishizaki I, Yamamoto K, Matsuyama T, Mishima M, Kojima C
The paramagnetic metal chelate complex Cu(2+)-iminodiacetic acid (Cu(2+)-IDA) was...
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11-24-2010 09:51 PM
[NMR paper] Strategy for the study of paramagnetic proteins with slow electronic relaxation rates
Strategy for the study of paramagnetic proteins with slow electronic relaxation rates by nmr spectroscopy: application to oxidized human ferredoxin.
Related Articles Strategy for the study of paramagnetic proteins with slow electronic relaxation rates by nmr spectroscopy: application to oxidized human ferredoxin.
J Am Chem Soc. 2004 May 5;126(17):5413-26
Authors: Machonkin TE, Westler WM, Markley JL
NMR studies of paramagnetic proteins are hampered by the rapid relaxation of nuclei near the paramagnetic center, which prevents the application...
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11-24-2010 09:51 PM
[Question from NMRWiki Q&A forum] Relaxation editing vr paramagnetic relaxation enhancement experiments - 13C CP-MAS NM
Relaxation editing vr paramagnetic relaxation enhancement experiments - 13C CP-MAS NMR
I am a beginner in NMR spectroscopy and I would like to learn more about relaxation editing experiments vs PRE. A colleague of mine is doing the 13C CP-MAS NMR experim. and he using cellulose II powder, regenerated cellulose and milled reg cellulose. We are interested in C4 resonance of cellulose II, good resolved resonance, to better understand the supramolecular structure of cellulose II. As experiments: long relaxation experiments - PRE with aqueous CuSO4 solution of certain concentration, does the...
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10-15-2010 05:16 PM
Solid-state NMR paramagnetic relaxation enhancement immersion depth studies in phosph
Solid-state NMR paramagnetic relaxation enhancement immersion depth studies in phospholipid bilayers.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles Solid-state NMR paramagnetic relaxation enhancement immersion depth studies in phospholipid bilayers.
J Magn Reson. 2010 Aug 24;
Authors: Chu S, Maltsev S, Emwas AH, Lorigan GA
A new approach for determining the membrane immersion depth of a spin-labeled probe has been developed using paramagnetic relaxation enhancement (PRE)...
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09-22-2010 05:27 AM
[Question from NMRWiki Q&A forum] Does anyone know something about paramagnetic relaxation enhancement (PRE)?
Does anyone know something about paramagnetic relaxation enhancement (PRE)?
Does anyone know something about paramagnetic relaxation enhancement (PRE)? i would like to try this method on my cellulose materials. What info can you take out of it? Thank you very much.
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