Related ArticlesDirect Evidence for Hydrogen Bonding Between Hydroxyl Groups in Glycans: A Combined NMR and Molecular Dynamics Study.
J Phys Chem B. 2013 Mar 26;
Authors: Battistel MD, Pendrill R, Widmalm G, Freedberg DI
Abstract
With this report we introduce the abundant hydroxyl groups of glycans as NMR handles and structural probes that expand the repertoire of tools for structure-function studies on glycans in solution. To this end we present the facile detection and assignment of hydroxyl groups in a wide range of sample concentrations (0.5 to 1700 mM) and temperatures, ranging from -5 to 25 °C. We then exploit this information to directly detect hydrogen bonds, well known for their importance for molecular structural determination through NMR. Via HSQC-TOCSY we were able to determine directionality of these hydrogen bonds. Furthermore, by means of Molecular Dynamics simulations in conjunction with NMR, we establish that one out of the three detected hydrogen bonds arises from inter-molecular interactions, which may shed light in glycan-glycan interaction and their recognition by proteins.
PMID: 23531151 [PubMed - as supplied by publisher]
[NMR paper] Summation solute hydrogen bonding acidity values for hydroxyl substituted flavones determined by NMR spectroscopy.
Summation solute hydrogen bonding acidity values for hydroxyl substituted flavones determined by NMR spectroscopy.
Related Articles Summation solute hydrogen bonding acidity values for hydroxyl substituted flavones determined by NMR spectroscopy.
Nat Prod Commun. 2013 Jan;8(1):85-98
Authors: Whaley WL, Okoso-amaa EM, Womack CL, Vladimirova A, Rogers LB, Risher MJ, Abraham MH
Abstract
The flavonoids are a structurally diverse class of natural products that exhibit a broad spectrum of biochemical activities. The flavones are one of the most...
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Rotational velocity rescaling of molecular dynamics trajectories for direct prediction of protein NMR relaxation
Rotational velocity rescaling of molecular dynamics trajectories for direct prediction of protein NMR relaxation
July 2012
Publication year: 2012
Source:Biophysical Chemistry, Volumes 168–169</br>
</br>
Rotational velocity rescaling (RVR) enables 15N relaxation data for the anisotropically tumbling B3 domain of Protein G (GB3) to be accurately predicted from 1?s of constant energy molecular dynamics simulation without recourse to any system-specific adjustable parameters. Superposition of adjacent trajectory frames yields the unique rotation axis and angle of rotation...
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02-03-2013 10:13 AM
Methanol Strengthens Hydrogen Bonds and Weakens Hydrophobic Interactions in Proteins - A Combined Molecular Dynamics and NMR study.
Methanol Strengthens Hydrogen Bonds and Weakens Hydrophobic Interactions in Proteins - A Combined Molecular Dynamics and NMR study.
Methanol Strengthens Hydrogen Bonds and Weakens Hydrophobic Interactions in Proteins - A Combined Molecular Dynamics and NMR study.
J Phys Chem B. 2011 May 2;
Authors: Hwang S, Shao Q, Williams H, Hilty C, Gao YQ
A combined simulation and experimental study was performed to investigate how methanol affects the structure of a model peptide BBA5. BBA5 forms a stable ?-hairpin-?-helix structure in aqueous solutions....
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05-04-2011 04:14 PM
Methyl groups as probes of supra-molecular structure, dynamics and function
Methyl groups as probes of supra-molecular structure, dynamics and function
Abstract The development of new protein labeling strategies, along with optimized experiments that exploit the label, have significantly impacted on the types of biochemical problems that can now be addressed by solution NMR spectroscopy. Here we describe how methyl labeling of key residues in a highly deuterated protein background has facilitated studies of the structure, dynamics and interactions of supra-molecular particles. The methyl-labeling approach is briefly reviewed, followed by a summary of...
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01-09-2011 12:46 PM
Alanine Methyl Groups as NMR Probes of Molecular Structure and Dynamics in High-Molecular-Weight Proteins
Alanine Methyl Groups as NMR Probes of Molecular Structure and Dynamics in High-Molecular-Weight Proteins
Raquel Godoy-Ruiz, Chenyun Guo and Vitali Tugarinov
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja1083656/aop/images/medium/ja-2010-083656_0009.gif
Journal of the American Chemical Society
DOI: 10.1021/ja1083656
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA
http://feeds.feedburner.com/~r/acs/jacsat/~4/hxZ4cabF688
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12-08-2010 10:04 AM
[NMR paper] NMR-detected hydrogen exchange and molecular dynamics simulations provide structural
NMR-detected hydrogen exchange and molecular dynamics simulations provide structural insight into fibril formation of prion protein fragment 106-126.
Related Articles NMR-detected hydrogen exchange and molecular dynamics simulations provide structural insight into fibril formation of prion protein fragment 106-126.
Proc Natl Acad Sci U S A. 2003 Dec 9;100(25):14790-5
Authors: Kuwata K, Matumoto T, Cheng H, Nagayama K, James TL, Roder H
PrP106-126, a peptide corresponding to residues 107-127 of the human prion protein, induces neuronal cell...
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11-24-2010 09:16 PM
[NMR paper] Solution (1)H NMR study of the influence of distal hydrogen bonding and N terminus ac
Solution (1)H NMR study of the influence of distal hydrogen bonding and N terminus acetylation on the active site electronic and molecular structure of Aplysia limacina cyanomet myoglobin.
Related Articles Solution (1)H NMR study of the influence of distal hydrogen bonding and N terminus acetylation on the active site electronic and molecular structure of Aplysia limacina cyanomet myoglobin.
J Biol Chem. 2000 Jan 14;275(2):742-51
Authors: Nguyen BD, Xia Z, Cutruzzolá F, Allocatelli CT, Brunori M, La Mar GN
The sea hare Aplysia limacina...
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11-18-2010 09:15 PM
[NMR paper] Direct evidence for a two-state protein unfolding transition from hydrogen-deuterium
Direct evidence for a two-state protein unfolding transition from hydrogen-deuterium exchange, mass spectrometry, and NMR.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www3.interscience.wiley.com-aboutus-images-wiley_interscience_pubmed_logo_FREE_120x27.gif http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.pubmedcentral.nih.gov-corehtml-pmc-pmcgifs-pubmed-pmc.gif Related Articles Direct evidence for a two-state protein unfolding transition from hydrogen-deuterium exchange, mass spectrometry, and NMR.
Protein Sci. 1996 Jun;5(6):1060-6
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