Correlation of aliphatic proton chemical shifts in proteins using two-dimensional double-quantum correlated spectroscopy
β Scribed by Jonathan Boyd; Christopher M. Dobson; Christina Redfieldt
- Publisher
- Elsevier Science
- Year
- 1985
- Weight
- 454 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0022-2364
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Cross-correlation between proton chemical shift anisotropy and proton-proton dipolar interactions is shown to be an important relaxation mechanism. Cross-correlation leads to a partial converaion of Zeeman order into longitudinal two-spin order. The build-up of longitudinal two-spin order can be obs
When the protomproton decoupled heteronuclear two-dimensional chemical shift correlation experiment is applied to a molecule containing methylene groups, the spectra show not only the expected signals at the two proton chemical shifts, but also a strong artifact. This artifact appears at the average