NMR paper Dissection of heteronuclear NMR experiments for studies of magnetization transfer eff

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[NMR paper] Dissection of heteronuclear NMR experiments for studies of magnetization transfer eff

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Side-chains:

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Torsion angles from chemical shifts:

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Promega- Proline

Secondary structure from chemical shifts:

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11-24-2010, 09:16 PM

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Dissection of heteronuclear NMR experiments for studies of magnetization transfer eff

Dissection of heteronuclear NMR experiments for studies of magnetization transfer efficiencies.

Related Articles Dissection of heteronuclear NMR experiments for studies of magnetization transfer efficiencies.

J Magn Reson. 2003 Nov;165(1):89-94

Authors: Braun D, Wüthrich K, Wider G

Modern NMR experiments for applications with biological macromolecules in solution typically include multiple magnetization transfer steps. When working with large structures, a significant fraction of the magnetization is lost during these transfers. For the design and optimization of complex experimental schemes, the magnetization transfer efficiencies have therefore commonly been calculated from the spin relaxation times. This paper now suggests a new method for measurement of individual transfer efficiencies directly with the system of interest, using short, reliable experiments. Initial applications of this approach with a 110,000 Da protein indicate that there is a wide range of transfer efficiencies among individual spin pairs in a structure of this size, which leads to a correspondingly large variation of the individual signal intensities and the need for techniques to enhance the weak signals.

PMID: 14568519 [PubMed - indexed for MEDLINE]

Source: PubMed

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