Thread: NMR paper Probing Side-Chain Dynamics in Proteins by NMR Relaxation of Isolated (13)C Magnetization Modes in (13)CH(3) Methyl Groups
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Default Probing Side-Chain Dynamics in Proteins by NMR Relaxation of Isolated (13)C Magnetization Modes in (13)CH(3) Methyl Groups
Probing Side-Chain Dynamics in Proteins by NMR Relaxation of Isolated (13)C Magnetization Modes in (13)CH(3) Methyl Groups

The dynamics of methyl-bearing side chains in proteins were probed by ^(13)C relaxation measurements of a number of ^(13)C magnetization modes in selectively ^(13)CH(3)-labeled methyl groups of proteins. We first show how ^(13)C magnetization modes in a ^(13)CH(3) spin-system can be isolated using acute-angle ¹H radio-frequency pulses. The parameters of methyl-axis dynamics, a measure of methyl-axis ordering (S(axis)²) and the correlation time of fast local methyl-axis motions (?(f)), derived...

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