The eggshell is a composite and highly ordered structure formed by biomineralization. Besides other functions, it has a vital and intricate role in the protection of an embryo from various potentially harsh environmental conditions. Solid-state nuclear magnetic resonance (SSNMR) has been used for detailed structural investigations of the chicken, tinamou, and flamingo eggshell materials. ^(31)P NMR spectra reveal that hydroxyapatite and ?-tricalcium phosphate in the ratio 3:2 represent major...
[NMR paper] Unraveling the role of probiotics in affecting the structure of monoglyceride gelled emulsions: A low-field (1)H NMR study
Unraveling the role of probiotics in affecting the structure of monoglyceride gelled emulsions: A low-field (1)H NMR study
The capacity of monoglyceride (MG) gelled emulsions (MEs) in protecting probiotic cells of Lacticaseibacillus rhamnosus against stresses suffered during food processing, storage, and human digestion has been recently demonstrated. These findings open new perspectives on the possible participation of probiotics in the stabilization of emulsion structure. To unravel this aspect, rheological analysis and Low-Field ¹H NMR investigations were performed on MEs having...
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04-17-2024 03:38 PM
[NMR paper] A Combined NMR-Computational Study of the Interaction between Influenza Virus Hemagglutinin and Sialic Derivatives from Human and Avian Receptors on the Surface of Transfected Cells.
A Combined NMR-Computational Study of the Interaction between Influenza Virus Hemagglutinin and Sialic Derivatives from Human and Avian Receptors on the Surface of Transfected Cells.
Related Articles A Combined NMR-Computational Study of the Interaction between Influenza Virus Hemagglutinin and Sialic Derivatives from Human and Avian Receptors on the Surface of Transfected Cells.
Int J Mol Sci. 2018 Apr 24;19(5):
Authors: Vasile F, Panigada M, Siccardi A, Potenza D, Tiana G
Abstract
The development of small-molecule inhibitors of...
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04-27-2018 10:26 PM
[U. of Ottawa NMR Facility Blog] Solid-State 13C NMR of Chicken Eggshells
Solid-State 13C NMR of Chicken Eggshells
13C CP/MAS and direct single pulse 13C MAS NMR with high power decoupling can give very different results for a wide variety of materials. 13C CP/MAS NMR relies on the transfer of magnetization from protons to 13C via the dipolar coupling mechanism whereas the direct single pulse method does not. An interesting material to demonstrate this principle is the shell of a chicken egg. Chicken eggshell is a complex bio-mineral consisting largely (~ 95%) of the calcite polymorph of calcium carbonate as well as proteins and lipids. The 13C CP/MAS and...
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03-30-2016 08:39 PM
[NMR paper] Intergrowth and interfacial structure of biomimetic fluorapatite-gelatin nanocomposite: a solid-state NMR study.
Intergrowth and interfacial structure of biomimetic fluorapatite-gelatin nanocomposite: a solid-state NMR study.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--pubs.acs.org-images-pubmed-acspubs.jpg Related Articles Intergrowth and interfacial structure of biomimetic fluorapatite-gelatin nanocomposite: a solid-state NMR study.
J Phys Chem B. 2014 Jan 23;118(3):724-30
Authors: Vyalikh A, Simon P, Rosseeva E, Buder J, Kniep R, Scheler U
Abstract
The model system fluorapatite-gelatin allows mimicking...
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09-05-2014 03:03 PM
[NMR paper] Probing the Residual Structure in Avian Prion Hexarepeats by CD, NMR and MD Techniques.
Probing the Residual Structure in Avian Prion Hexarepeats by CD, NMR and MD Techniques.
Probing the Residual Structure in Avian Prion Hexarepeats by CD, NMR and MD Techniques.
Molecules. 2013;18(9):11467-84
Authors: Russo L, Raiola L, Campitiello MA, Magrì A, Fattorusso R, Malgieri G, Pappalardo G, La Mendola D, Isernia C
Abstract
Many proteins perform essential biological functions by means of regions that lacking specific organized structure exist as an ensemble of interconverting transient conformers. The characterization of such...
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[NMR paper] NMR study suggests a major role for Arg111 in maintaining the structure and dynamical
NMR study suggests a major role for Arg111 in maintaining the structure and dynamical properties of type II human cellular retinoic acid binding protein.
Related Articles NMR study suggests a major role for Arg111 in maintaining the structure and dynamical properties of type II human cellular retinoic acid binding protein.
Biochemistry. 1998 Sep 15;37(37):13021-32
Authors: Wang L, Yan H
The solution structure of a site-directed mutant of type-II human cellular retinoic acid binding protein (CRABPII) with Arg111 replaced by methionine (R111M)...
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11-17-2010 11:15 PM
[NMR paper] Dynamic structure of proteins in solid state. 1H and 13C NMR relaxation study.
Dynamic structure of proteins in solid state. 1H and 13C NMR relaxation study.
Related Articles Dynamic structure of proteins in solid state. 1H and 13C NMR relaxation study.
J Biomol Struct Dyn. 1996 Oct;14(2):211-24
Authors: Krushelnitsky AG, Fedotov VD, Spevacek J, Straka J
Temperature dependencies of 1H non-selective NMR T1 and T2 relaxation times measured at two resonance frequencies and natural abundance 13C NMR relaxation times T1 and T1r measured at room temperature have been studied in a set of dry and wet solid proteins - Bacterial...
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[NMR paper] Supercontracted spider dragline silk: a solid-state NMR study of the local structure.
Supercontracted spider dragline silk: a solid-state NMR study of the local structure.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles Supercontracted spider dragline silk: a solid-state NMR study of the local structure.
Int J Biol Macromol. 1999 Mar-Apr;24(2-3):173-8
Authors: van Beek JD, Kümmerlen J, Vollrath F, Meier BH
The local structure of supercontracted dragline silk from the spider Nephila madagascariensis was investigated by solid-state nuclear magnetic...
On the Structure and Role of Avian Eggshells: A (31)P, (1)H, and (13)C Solid-State NMR Study
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