l19F/29Si Rotational-Echo Double-Resonance and Heteronuclear Spin Counting under Fast Magic-Angle Spinning in Fluoride-Containing Octadecasil

2002 ◽  
Vol 22 (2-3) ◽  
pp. 188-203 ◽  
Author(s):  
Philippe Bertani ◽  
Jésus Raya ◽  
Jérôme Hirschinger
Keyword(s):  
Double Resonance ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Rotational Echo Double Resonance ◽  
Spin Counting ◽  
Angle Spinning ◽  
Fast Magic Angle Spinning

Recoupling of Heteronuclear Dipolar Interactions with Rotational-Echo Double-Resonance at High Magic-Angle Spinning Frequencies

2000 ◽  
Vol 146 (1) ◽  
pp. 132-139 ◽  
Author(s):  
Christopher P Jaroniec ◽  
Brett A Tounge ◽  
Chad M Rienstra ◽  
Judith Herzfeld ◽  
Robert G Griffin
Keyword(s):  
Double Resonance ◽  
Magic Angle Spinning ◽  
Magic Angle ◽  
Dipolar Interactions ◽  
Rotational Echo Double Resonance ◽  
Angle Spinning

scholarly journals Determination of Histidine Protonation States in Proteins by Fast Magic Angle Spinning NMR

2021 ◽  
Vol 8 ◽  
Author(s):  
Roman Zadorozhnyi ◽  
Sucharita Sarkar ◽  
Caitlin M. Quinn ◽  
Kaneil K. Zadrozny ◽  
Barbie K. Ganser-Pornillos ◽  
...  
Keyword(s):  
Metal Binding ◽  
Double Resonance ◽  
Imidazole Ring ◽  
Magic Angle Spinning ◽  
Proton Channel ◽  
Magic Angle ◽  
Ionization State ◽  
Angle Spinning ◽  
Fast Magic Angle Spinning

Histidine residues play important structural and functional roles in proteins, such as serving as metal-binding ligands, mediating enzyme catalysis, and modulating proton channel activity. Many of these activities are modulated by the ionization state of the imidazole ring. Here we present a fast MAS NMR approach for the determination of protonation and tautomeric states of His at frequencies of 40–62 kHz. The experiments combine 1H detection with selective magnetization inversion techniques and transferred echo double resonance (TEDOR)–based filters, in 2D heteronuclear correlation experiments. We illustrate this approach using microcrystalline assemblies of HIV-1 CACTD-SP1 protein.

Fast-magic-angle-spinning 19F NMR of inorganic fluorides and fluoridated apatitic surfaces

1990 ◽  
Vol 88 (2) ◽  
pp. 267-276 ◽  
Author(s):  
Anthony T Kreinbrink ◽  
Charles D Sazavsky ◽  
Joseph W Pyrz ◽  
Dennis G.A Nelson ◽  
Robert S Honkonen
Keyword(s):  
Magic Angle Spinning ◽  
19F Nmr ◽  
Magic Angle ◽  
Angle Spinning ◽  
Fast Magic Angle Spinning ◽  
Inorganic Fluorides
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