An NMR strategy for fragment-based ligand screening utilizing a paramagnetic lanthanide probe.
An NMR strategy for fragment-based ligand screening utilizing a paramagnetic lanthanide probe.
An NMR strategy for fragment-based ligand screening utilizing a paramagnetic lanthanide probe.
J Biomol NMR. 2011 Sep 17;
Authors: Saio T, Ogura K, Shimizu K, Yokochi M, Burke TR, Inagaki F
Abstract
A nuclear magnetic resonance-based ligand screening strategy utilizing a paramagnetic lanthanide probe is presented. By fixing a paramagnetic lanthanide ion to a target protein, a pseudo-contact shift (PCS) and a paramagnetic relaxation...
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09-20-2011 03:10 PM
An NMR strategy for fragment-based ligand screening utilizing a paramagnetic lanthanide probe
An NMR strategy for fragment-based ligand screening utilizing a paramagnetic lanthanide probe
Abstract A nuclear magnetic resonance-based ligand screening strategy utilizing a paramagnetic lanthanide probe is presented. By fixing a paramagnetic lanthanide ion to a target protein, a pseudo-contact shift (PCS) and a paramagnetic relaxation enhancement (PRE) can be observed for both the target protein and its bound ligand. Based on PRE and PCS information, the bound ligand is then screened from the compound library and the structure of the ligandâ??protein complex is determined. PRE is an...
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09-20-2011 05:02 AM
Cys-Ph-TAHA: a lanthanide binding tag for RDC and PCS enhanced protein NMR
Cys-Ph-TAHA: a lanthanide binding tag for RDC and PCS enhanced protein NMR
Abstract Here we present Cys-Ph-TAHA, a new nonadentate lanthanide tag for the paramagnetic labelling of proteins. The tag can be easily synthesized and is stereochemically homogenous over a wide range of temperatures, yielding NMR spectra with a single set of peaks. Bound to ubiquitin, it induced large residual dipolar couplings and pseudocontact shifts that could be measured easily and agreed very well with the protein structure. We show that Cys-Ph-TAHA can be used to label large proteins that are...
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09-08-2011 08:24 AM
Cys-Ph-TAHA: a lanthanide binding tag for RDC and PCS enhanced protein NMR.
Cys-Ph-TAHA: a lanthanide binding tag for RDC and PCS enhanced protein NMR.
Cys-Ph-TAHA: a lanthanide binding tag for RDC and PCS enhanced protein NMR.
J Biomol NMR. 2011 Sep 4;
Authors: Peters F, Maestre-Martinez M, Leonov A, Kova?i? L, Becker S, Boelens R, Griesinger C
Abstract
Here we present Cys-Ph-TAHA, a new nonadentate lanthanide tag for the paramagnetic labelling of proteins. The tag can be easily synthesized and is stereochemically homogenous over a wide range of temperatures, yielding NMR spectra with a single set of peaks....
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09-06-2011 06:02 PM
[Question from NMRWiki Q&A forum] Tuning probe failed after a dual probe was replaced with a BBI probe
Tuning probe failed after a dual probe was replaced with a BBI probe
We generally use Dual to run 13C and BBI to run 2D. After changed the probe, the command "edhead" was used to set the probe. Put the sample tube, lock the solvent, and then type "atma" to tune the probe. We always do it like this, but now we can not tune the proton after installed the BBI probe (13C is OK). The dip can not be found by "atma", and "atmm" was also not work on forming a dip. What is the most possible reason for this error? How to solve it and avoid it in the future ? Thanks. (Instrument: Bruker 400 MHz,...
[NMR paper] Three-dimensional solution NMR structure of Apo-L75F-TrpR, a temperature-sensitive mu
Three-dimensional solution NMR structure of Apo-L75F-TrpR, a temperature-sensitive mutant of the tryptophan repressor protein.
Related Articles Three-dimensional solution NMR structure of Apo-L75F-TrpR, a temperature-sensitive mutant of the tryptophan repressor protein.
Biochemistry. 2002 Oct 8;41(40):11954-62
Authors: Tyler R, Pelczer I, Carey J, Copié V
L75F-TrpR is a temperature-sensitive mutant of the tryptophan repressor protein of Escherichia coli in which surface-exposed residue leucine 75 in the DNA binding domain is replaced with...
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11-24-2010 08:58 PM
24-SEMA as a Sensitive and Offset Compensated SLF Sequence
24-SEMA as a Sensitive and Offset Compensated SLF Sequence
Publication year: 2010
Source: Journal of Magnetic Resonance, In Press, Accepted Manuscript, Available online 3 September 2010</br>
S., Jayanthi , N., Sinha , K.V., Ramanathan</br>
Separated Local Field (SLF) spectroscopy is a powerful tool for the determination of structure and dynamics of oriented systems such as membrane proteins oriented in lipid bilayers and liquid crystals. Of many SLF techniques available, Polarization Inversion Spin Exchange at Magic Angle (PISEMA) has found wide application due to its many favorable...