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Multisite Band-Selective Decoupling in Proteins

✍ Scribed by Ēriks Kupce; Gerhard Wagner

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
128 KB
Volume
110
Category
Article
ISSN
1064-1866

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✦ Synopsis

The fact that many proteins can nowadays be enriched (»v 1 …) and the average distance from the detection band (»Dv…). with 13 C has made multiple-resonance NMR experiments very popular. Since one no longer must fight the disadvan-

The adiabaticity of the RF field can be quantified by introducing the adiabaticity factor Q (6, 7): tages of the low natural abundance of 13 C, many of these experiments can be carried out at high sensitivity. On the other hand, spectra of 13 C-enriched samples show large car-

eff /Év 1 (dDv/dt) 0 Dv(dv 1 /dt)É.

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## Abstract Long‐range ^13^C^1^H coupling constants were measured by using multiple‐site selective excitation followed by polarization transfer and acquisition under band‐selective proton decoupling conditions. The multiple‐site proton decoupling eliminates splittings due to homonuclear spin coupl