Related ArticlesLabeled Ligand Displacement: Extending NMR-Based Screening of Protein Targets.
ACS Med Chem Lett. 2010 Sep 9;1(6):295-9
Authors: Swann SL, Song D, Sun C, Hajduk PJ, Petros AM
Abstract
NMR spectroscopy has enjoyed widespread success as a method for screening protein targets, especially in the area of fragment-based drug discovery. However, current methods for NMR-based screening all suffer certain limitations. Two-dimensional methods like "SAR by NMR" require isotopically labeled protein and are limited to proteins less than about 50 kDa. For one-dimensional, ligand-based methods, results can be confounded by nonspecific compound binding, resonance overlap, or the need for a special NMR probe. We present here a ligand-based method that relies on the exchange broadening observed for a (13)C-labeled molecule upon binding to a protein target (labeled ligand displacement). This method can be used to screen both individual compounds and mixtures and is free of the artifacts inherent in other ligand-based methods.
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
Rapid acquisition of (1) H and (19) F NMR experiments for direct and competition ligand-based screening.
Rapid acquisition of (1) H and (19) F NMR experiments for direct and competition ligand-based screening.
Rapid acquisition of (1) H and (19) F NMR experiments for direct and competition ligand-based screening.
Magn Reson Chem. 2011 Mar 9;
Authors: Dalvit C, Gossert AD, Coutant J, Piotto M
Direct and competition ligand-based NMR experiments are often used in the screening of chemical fragment libraries against a protein target due to the high relative sensitivity of NMR for protein-binding events. A plethora of NMR methods has been proposed...
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03-10-2011 03:51 PM
Site-specific free energy changes in proteins upon ligand binding by NMR: Ca(2+) -displacement by Ln(3+) in a Ca(2+) -binding protein from Entamoeba histolytica.
Site-specific free energy changes in proteins upon ligand binding by NMR: Ca(2+) -displacement by Ln(3+) in a Ca(2+) -binding protein from Entamoeba histolytica.
Site-specific free energy changes in proteins upon ligand binding by NMR: Ca(2+) -displacement by Ln(3+) in a Ca(2+) -binding protein from Entamoeba histolytica.
Chem Biol Drug Des. 2011 Jan 14;
Authors: Chandra K, Mustafi SM, Muthukumar S, Chary KV
The study of protein-ligand interaction has been of a great interest in contemporary structural biology. The understanding of the nature...
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01-18-2011 10:22 PM
[NMR paper] NMR fragment screening: tackling protein-protein interaction targets.
NMR fragment screening: tackling protein-protein interaction targets.
Related Articles NMR fragment screening: tackling protein-protein interaction targets.
Curr Opin Drug Discov Devel. 2005 May;8(3):365-73
Authors: Schade M, Oschkinat H
High-throughput screening of libraries containing compounds of 'drug-like' molecular weight has frequently resulted in no or poor drug candidates, especially when screening against demanding drug targets such as protein-protein interactions. Fragment-based lead discovery and optimization has evolved as a...
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11-25-2010 08:21 PM
[NMR paper] Druggability indices for protein targets derived from NMR-based screening data.
Druggability indices for protein targets derived from NMR-based screening data.
Related Articles Druggability indices for protein targets derived from NMR-based screening data.
J Med Chem. 2005 Apr 7;48(7):2518-25
Authors: Hajduk PJ, Huth JR, Fesik SW
An analysis of heteronuclear-NMR-based screening data is used to derive relationships between the ability of small molecules to bind to a protein and various parameters that describe the protein binding site. It is found that a simple model including terms for polar and apolar surface area,...
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11-25-2010 08:21 PM
[NMR paper] High-throughput screening of structural proteomics targets using NMR.
High-throughput screening of structural proteomics targets using NMR.
Related Articles High-throughput screening of structural proteomics targets using NMR.
FEBS Lett. 2003 Sep 25;552(2-3):207-13
Authors: Galvão-Botton LM, Katsuyama AM, Guzzo CR, Almeida FC, Farah CS, Valente AP
We applied a high-throughput strategy for the screening of targets for structural proteomics of Xanthomonas axonopodis pv citri. This strategy is based on the rapid (1)H-(15)N HSQC NMR analysis of bacterial lysates containing selectively (15)N-labelled heterologous...
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11-24-2010 09:16 PM
[NMR paper] High resolution NMR for screening ligand/protein binding.
High resolution NMR for screening ligand/protein binding.
Related Articles High resolution NMR for screening ligand/protein binding.
Curr Opin Drug Discov Devel. 1999 Jul;2(4):396-400
Authors: Shapiro MJ, Wareing JR
High resolution NMR spectroscopy has provided a versatile tool for assessing ligand/receptor interactions. NMR-based methods are currently being investigated which may prove valuable for compound screening. These techniques include the use of chemical shift perturbations, the monitoring of translational diffusion and the...
Labeled Ligand Displacement: Extending NMR-Based Screening of Protein Targets.
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