Multiplet component separation for measurement of methyl 13C-1H dipolar couplings in weakly aligned proteins.
نویسندگان
چکیده
A simple spectral editing procedure is described that generates separate subspectra for the methyl 13C-[1H3] multiplet components of 1H-13C HSQC spectra. The editing procedure relies on co-addition of in-phase and antiphase spectra and yields 1H-coupled constant-time HSQC subspectra for the methyl region that have the simplicity of the regular decoupled CT-HSQC spectrum. Resulting spectra permit rapid and reliable measurement of 1H-13C J and dipolar couplings. The editing procedure is illustrated for a Ca2+-calmodulin sample in isotropic and liquid crystalline phases.
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ورودعنوان ژورنال:
- Journal of biomolecular NMR
دوره 20 1 شماره
صفحات -
تاریخ انتشار 2001