期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 131, 期 42, 页码 15339-15345出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja9058525
关键词
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资金
- EC [EU-NMR 026145, SPINE II 031220, RBRN07BMCT]
- Ente Cassa di Risparmio di Firenze
After the exploitation of H-1 polarization as a starting source for C-13 direct detection experiments, pulse sequences are designed which exploit the accelerated H-1 longitudinal relaxation to expedite C-13 direct detection experiments. We show here that 2D experiments based on C-13 direct detection on a 0.5 mM water sample of ubiquitin can be recorded in a few minutes and 3D experiments in a few hours. We also show that fast methods like nonuniform sampling can be easily implemented. As overall experimental time has always been a counter indication for the use of C-13 direct detection experiments, this research opens new avenues for the application of C-13 NMR to biological molecules.
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