Authors: Gonnella N, Lin M, Shapiro MJ, Wareing JR, Zhang X
A double-editing pulse sequence has been developed that allows the direct observation of protein binding ligand(s) from a mixture of compounds. This technique should aid the discovery of lead pharmaceutical compounds. The proton NMR signals from protein and the nonbinding ligands are simultaneously eliminated using 13C isotope editing and PFG diffusion-edited NMR. This new experiment is demonstrated using 13C/15N-labeled stromelysin catalytic domain (SCD). Copyright 1998 Academic Press.
[Question from NMRWiki Q&A forum] Isotope Filtered NOESY
Isotope Filtered NOESY
I'm an NMR newbie. I know isotope filtering can be used to study a complex under slow exchange, but for fast-exchange, is it possible to acquire only the intramolecular NOEs of the receptor as opposed to intermolecular NOEs between the receptor and ligand? I just want the contacts in the receptor. Thanks.
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[Question from NMRWiki Q&A forum] Basics of filtered NOE experiment
Basics of filtered NOE experiment
I have not fully understood the mechanism of the filtered NOE experiment. What does it tell you? Are you able to distinguish between inter- and intradomains in a protein? How is such an experiment performed in the lab?
NMR Master student, Sweden
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03-03-2011 02:07 PM
[Question from NMRWiki Q&A forum] 2D Filtered NOESY/TOCSY on Varian Biopack
2D Filtered NOESY/TOCSY on Varian Biopack
I am attempting to run some filtered NOESY and TOCSY experiments using sequences in the Varian Biopack - CNfiltocsy and CNfilnoesy. The experiments seem to run fine, but when overlaying the processed spectra something seems odd - the TOCSY crosspeaks are not present in the NOESY spectra and vice-versa. Does anyone know why this might be the case?
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12-20-2010 01:52 AM
[NMR paper] Multiple quantum filtered NMR studies of the interaction between collagen and water i
Multiple quantum filtered NMR studies of the interaction between collagen and water in the tendon.
Related Articles Multiple quantum filtered NMR studies of the interaction between collagen and water in the tendon.
J Am Chem Soc. 2002 Mar 27;124(12):3125-32
Authors: Eliav U, Navon G
We studied the physical processes and the chemical reactions involved in magnetization transfer between water and large proteins, such as collagen, in bovine Achilles tendon. Since the NMR spectrum for such proteins is broadened by very large dipolar interactions,...
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11-24-2010 08:49 PM
[NMR paper] NMR triple-quantum filtered relaxation analysis of 17O-water in insulin solutions: an
NMR triple-quantum filtered relaxation analysis of 17O-water in insulin solutions: an insight into the aggregation of insulin and the properties of its bound water.
Related Articles NMR triple-quantum filtered relaxation analysis of 17O-water in insulin solutions: an insight into the aggregation of insulin and the properties of its bound water.
Biophys Chem. 1998 Mar 9;70(3):231-9
Authors: Torres AM, Grieve SM, Kuchel PW
Transverse triple-quantum filtered NMR spectroscopy (TTQF) of 17O-water was used to study the properties of water in insulin...
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11-17-2010 11:06 PM
[NMR paper] Discovering high-affinity ligands for proteins: SAR by NMR.
Discovering high-affinity ligands for proteins: SAR by NMR.
Related Articles Discovering high-affinity ligands for proteins: SAR by NMR.
Science. 1996 Nov 29;274(5292):1531-4
Authors: Shuker SB, Hajduk PJ, Meadows RP, Fesik SW
A nuclear magnetic resonance (NMR)-based method is described in which small organic molecules that bind to proximal subsites of a protein are identified, optimized, and linked together to produce high-affinity ligands. The approach is called "SAR by NMR" because structure-activity relationships (SAR) are obtained from...
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08-22-2010 02:20 PM
[NMRwiki tweet] nmrwiki: Unanswered question: What isotope filtered #nmr pulse sequences are availabl
nmrwiki: Unanswered question: What isotope filtered #nmr pulse sequences are available? http://qa.nmrwiki.org/question/126/
nmrwiki: Unanswered question: What isotope filtered #nmr pulse sequences are available? http://qa.nmrwiki.org/question/126/
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