Related ArticlesProbing solvent accessibility of transthyretin amyloid by solution NMR spectroscopy.
J Biol Chem. 2004 Feb 13;279(7):5699-707
Authors: Olofsson A, Ippel JH, Wijmenga SS, Lundgren E, Ohman A
The human plasma protein transthyretin (TTR) may form fibrillar protein deposits that are associated with both inherited and idiopathic amyloidosis. The present study utilizes solution nuclear magnetic resonance spectroscopy, in combination with hydrogen/deuterium exchange, to determine residue-specific solvent protection factors within the fibrillar structure of the clinically relevant variant, TTRY114C. This novel approach suggests a fibril core comprised of the six beta-strands, A-B-E-F-G-H, which retains a native-like conformation. Strands C and D are dislocated from their native edge region and become solvent-exposed, leaving a new interface involving strands A and B open for intermolecular interactions. Our results further support a native-like intermolecular association between strands F-F' and H-H' with a prolongation of these beta-strands and, interestingly, with a possible shift in beta-strand register of the subunit assembly. This finding may explain previous observations of a monomeric intermediate preceding fibril formation. A structural model based on our results is presented.
Probing water-accessibility in HET-s(218-289) amyloid fibrils by solid-state NMR.
Probing water-accessibility in HET-s(218-289) amyloid fibrils by solid-state NMR.
Probing water-accessibility in HET-s(218-289) amyloid fibrils by solid-state NMR.
J Mol Biol. 2010 Nov 18;
Authors: Van Melckebeke H, Schanda P, Gath J, Wasmer C, Verel R, Lange A, Meier BH, Böckmann A
Despite its importance in the context of conformational diseases, structural information is still sparse for protein fibrils. Hydrogen/deuterium exchange measurements of backbone amides allow to identify hydrogen-bonding patterns and reveal pertinent information about...
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[NMR paper] Probing solvent accessibility of amyloid fibrils by solution NMR spectroscopy.
Probing solvent accessibility of amyloid fibrils by solution NMR spectroscopy.
Related Articles Probing solvent accessibility of amyloid fibrils by solution NMR spectroscopy.
Proc Natl Acad Sci U S A. 2002 Jun 25;99(13):8648-53
Authors: Ippel JH, Olofsson A, Schleucher J, Lundgren E, Wijmenga SS
Amyloid is the result of an anomalous protein and peptide aggregation, leading to the formation of insoluble fibril deposits. At present, 18 human diseases have been associated with amyloid deposits-e.g., Alzheimer's disease and Prion-transmissible...
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[NMR paper] Probing proteins in solution by (129)Xe NMR spectroscopy.
Probing proteins in solution by (129)Xe NMR spectroscopy.
Related Articles Probing proteins in solution by (129)Xe NMR spectroscopy.
J Magn Reson. 2001 Jun;150(2):167-74
Authors: Locci E, Dehouck Y, Casu M, Saba G, Lai A, Luhmer M, Reisse J, Bartik K
The interaction of xenon with different proteins in aqueous solution is investigated by (129)Xe NMR spectroscopy. Chemical shifts are measured in horse metmyoglobin, hen egg white lysozyme, and horse cytochrome c solutions as a function of xenon concentration. In these systems, xenon is in fast...
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[NMR paper] Probing protein structure by solvent perturbation of NMR spectra: the surface accessi
Probing protein structure by solvent perturbation of NMR spectra: the surface accessibility of bovine pancreatic trypsin inhibitor.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-cellhub.gif http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.pubmedcentral.nih.gov-corehtml-pmc-pmcgifs-pubmed-pmc.gif Related Articles Probing protein structure by solvent perturbation of NMR spectra: the surface accessibility of bovine pancreatic trypsin inhibitor.
Biophys J. 1997 Jul;73(1):382-96
Authors: Molinari H,...
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[NMR paper] Evaluation of Solvent Accessibility to the [Fe(4)S(4)] Binding Pocket in Native and T
Evaluation of Solvent Accessibility to the Binding Pocket in Native and Tyr19 Mutant High Potential Iron Proteins by (1)H-(15)N HMQC and (19)F NMR Experiments.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--pubs.acs.org-images-acspubs.jpg Related Articles Evaluation of Solvent Accessibility to the Binding Pocket in Native and Tyr19 Mutant High Potential Iron Proteins by (1)H-(15)N HMQC and (19)F NMR Experiments.
Inorg Chem. 1996 Feb 28;35(5):1121-1125
Authors: Li D, Agarwal A, Cowan JA
The solvent accessibility of Chromatium...
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[NMR paper] Probing protein structure by solvent perturbation of NMR spectra. Photochemically ind
Probing protein structure by solvent perturbation of NMR spectra. Photochemically induced dynamic nuclear polarization and paramagnetic perturbation techniques applied to the study of the molten globule state of alpha-lactalbumin.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www3.interscience.wiley.com-aboutus-images-wiley_interscience_pubmed_logo_FREE_120x27.gif Related Articles Probing protein structure by solvent perturbation of NMR spectra. Photochemically induced dynamic nuclear polarization and paramagnetic perturbation techniques applied to the study of the...
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[NMR paper] Probing protein structure by solvent perturbation of NMR spectra. A comparison with p
Probing protein structure by solvent perturbation of NMR spectra. A comparison with photochemically induced dynamic nuclear polarization techniques applied to native alpha-lactalbumin.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www3.interscience.wiley.com-aboutus-images-wiley_interscience_pubmed_logo_FREE_120x27.gif Related Articles Probing protein structure by solvent perturbation of NMR spectra. A comparison with photochemically induced dynamic nuclear polarization techniques applied to native alpha-lactalbumin.
Eur J Biochem. 1995 Jan 15;227(1-2):78-86...
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[NMR paper] Probing protein structure by solvent perturbation of NMR spectra. II. Determination o
Probing protein structure by solvent perturbation of NMR spectra. II. Determination of surface and buried residues in homologous proteins.
Related Articles Probing protein structure by solvent perturbation of NMR spectra. II. Determination of surface and buried residues in homologous proteins.
Biopolymers. 1993 May;33(5):839-46
Authors: Esposito G, Lesk AM, Molinari H, Motta A, Niccolai N, Pastore A
The experimental assignment of most residues in a protein to the surface or interior is in principle possible without prior solution of a complete...
Probing solvent accessibility of transthyretin amyloid by solution NMR spectroscopy.
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