NMR paper Probing protein structure by solvent perturbation of NMR spectra. A comparison with p

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[NMR paper] Probing protein structure by solvent perturbation of NMR spectra. A comparison with p

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08-22-2010, 03:41 AM

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Probing protein structure by solvent perturbation of NMR spectra. A comparison with p

Probing protein structure by solvent perturbation of NMR spectra. A comparison with photochemically induced dynamic nuclear polarization techniques applied to native alpha-lactalbumin.

Related Articles Probing protein structure by solvent perturbation of NMR spectra. A comparison with photochemically induced dynamic nuclear polarization techniques applied to native alpha-lactalbumin.

Eur J Biochem. 1995 Jan 15;227(1-2):78-86

Authors: Improta S, Molinari H, Pastore A, Consonni R, Zetta L

We have suggested elsewhere the use of surface mapping by spin label probes (Esposito et al., 1992). According to this approach, soluble nitroxides are added to a protein solution. Resonances of protons that are accessible to the nitroxide are broadened and bleached out of the spectrum, while resonances in the protein interior remain unaffected. This approach is, in principle, complementary to another technique, photochemically induced dynamic nuclear polarization, which maps the position of aromatic protons on the protein surface. A detailed comparison between the two techniques is necessary for a confident use of the more recent suggested nitroxide perturbation approach. In the present study, we show that the results obtained by the two techniques for the native state of bovine alpha-lactalbumin are fully consistent and may therefore be combined for the study of protein surfaces.

PMID: 7851445 [PubMed - indexed for MEDLINE]

Source: PubMed

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