Electrostatically-driven fast association and perdeuteration allow detection of transferred cross-relaxation for G protein-coupled receptor ligands with equilibrium dissociation constants in the high-to-low nanomolar range
Electrostatically-driven fast association and perdeuteration allow detection of transferred cross-relaxation for G protein-coupled receptor ligands with equilibrium dissociation constants in the high-to-low nanomolar range
Abstract The mechanism of signal transduction mediated by G protein-coupled receptors is a subject of intense research in pharmacological and structural biology. Ligand association to the receptor constitutes a critical event in the activation process. Solution-state NMR can be amenable to high-resolution structure determination of agonist molecules in their receptor-bound state by detecting dipolar interactions in a transferred mode, even with equilibrium dissociation constants below the micromolar range. This is possible in the case of an inherent ultra-fast diffusive association of charged ligands onto a highly charged extracellular surface, and by slowing down the 1Hâ??1H cross-relaxation by perdeuterating the receptor. Here, we demonstrate this for two fatty acid molecules in interaction with the leukotriene BLT2 receptor, for which both ligands display a submicromolar affinity.
NMR insights into the core of GED assembly by H/D exchange coupled with DMSO dissociation and analysis of the denatured state.
NMR insights into the core of GED assembly by H/D exchange coupled with DMSO dissociation and analysis of the denatured state.
NMR insights into the core of GED assembly by H/D exchange coupled with DMSO dissociation and analysis of the denatured state.
J Mol Biol. 2011 Feb 4;405(5):1202-14
Authors: Chakraborty S, Hosur RV
GTPase effector domain (GED) of dynamin forms megadalton-sized assembly in vitro, rendering its structural characterization highly challenging. To probe the core of the GED assembly, we performed H/D exchange in native...
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02-25-2011 08:54 PM
[NMR paper] Solution NMR spectroscopy of the human vasopressin V2 receptor, a G protein-coupled r
Solution NMR spectroscopy of the human vasopressin V2 receptor, a G protein-coupled receptor.
Related Articles Solution NMR spectroscopy of the human vasopressin V2 receptor, a G protein-coupled receptor.
J Am Chem Soc. 2005 Jun 8;127(22):8010-1
Authors: Tian C, Breyer RM, Kim HJ, Karra MD, Friedman DB, Karpay A, Sanders CR
The seven-transmembrane-spanning G protein-coupled receptor (GPCR) superfamily plays many important roles in basic biology, human health, and human disease. Here, well-resolved solution NMR spectra are presented for a human...
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11-25-2010 08:21 PM
[NMR paper] Competition STD NMR for the detection of high-affinity ligands and NMR-based screenin
Competition STD NMR for the detection of high-affinity ligands and NMR-based screening.
Related Articles Competition STD NMR for the detection of high-affinity ligands and NMR-based screening.
Magn Reson Chem. 2004 Jun;42(6):485-9
Authors: Wang YS, Liu D, Wyss DF
The reported competition STD NMR method combines saturation transfer difference (STD) NMR with competition binding experiments to allow the detection of high-affinity ligands that undergo slow chemical exchange on the NMR time-scale. With this technique, the presence of a competing...
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11-24-2010 09:51 PM
[NMR paper] Differential dynamics in the G protein-coupled receptor rhodopsin revealed by solutio
Differential dynamics in the G protein-coupled receptor rhodopsin revealed by solution NMR.
Related Articles Differential dynamics in the G protein-coupled receptor rhodopsin revealed by solution NMR.
Proc Natl Acad Sci U S A. 2004 Mar 9;101(10):3409-13
Authors: Klein-Seetharaman J, Yanamala NV, Javeed F, Reeves PJ, Getmanova EV, Loewen MC, Schwalbe H, Khorana HG
G protein-coupled receptors are cell-surface seven-helical membrane proteins that undergo conformational changes on activation. The mammalian photoreceptor, rhodopsin, is the...
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11-24-2010 09:25 PM
[NMR paper] The NMR-derived conformation of orexin-A: an orphan G-protein coupled receptor agonis
The NMR-derived conformation of orexin-A: an orphan G-protein coupled receptor agonist involved in appetite regulation and sleep.
Related Articles The NMR-derived conformation of orexin-A: an orphan G-protein coupled receptor agonist involved in appetite regulation and sleep.
J Biomol Struct Dyn. 2003 Oct;21(2):201-10
Authors: Miskolzie M, Kotovych G
The conformation of orexin-A, an orphan G-protein coupled receptor agonist has been determined when bound to sodium dodecylsulphate-d(25) (SDS) micelles by (1)H and (13)C NMR and molecular...
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11-24-2010 09:16 PM
[NMR paper] The NMR-derived conformation of neuropeptide AF, an orphan G-protein coupled receptor
The NMR-derived conformation of neuropeptide AF, an orphan G-protein coupled receptor peptide.
Related Articles The NMR-derived conformation of neuropeptide AF, an orphan G-protein coupled receptor peptide.
Biopolymers. 2003 Jun;69(2):201-15
Authors: Miskolzie M, Kotovych G
The tertiary structure of the pain modulating and anti-opiate neuropeptide, human neuropeptide AF (NPAF) (the sequence is AGEGLNSQFWSLAAPQRF-NH(2)), was determined by (1)H-NMR. The structure of NPAF was determined in two solvent systems, namely 50%/50%...
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[NMR paper] NMR methods for the determination of protein-ligand dissociation constants.
NMR methods for the determination of protein-ligand dissociation constants.
Related Articles NMR methods for the determination of protein-ligand dissociation constants.
Curr Top Med Chem. 2003;3(1):39-53
Authors: Fielding L
This article is a review with 83 references of the application of NMR to the measurement of the dissociation constants of protein-ligand complexes. After briefly discussing some general concepts of molecular stability, the text turns to consider which NMR parameters are reporters of complex formation. The available data...
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[NMR paper] Structure of segments of a G protein-coupled receptor: CD and NMR analysis of the Sac
Structure of segments of a G protein-coupled receptor: CD and NMR analysis of the Saccharomyces cerevisiae tridecapeptide pheromone receptor.
Related Articles Structure of segments of a G protein-coupled receptor: CD and NMR analysis of the Saccharomyces cerevisiae tridecapeptide pheromone receptor.
Biopolymers. 1998 Nov;46(6):343-57
Authors: Arshava B, Liu SF, Jiang H, Breslav M, Becker JM, Naider F
Peptides representing both loop and the sixth transmembrane regions of the alpha-factor receptor of Saccharomyces cerevisiae were synthesized by...
Electrostatically-driven fast association and perdeuteration allow detection of transferred cross-relaxation for G protein-coupled receptor ligands with equilibrium dissociation constants in the high-to-low nanomolar range
Linear Mode
