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PROBING PROTEIN-STRUCTURE BY SOLVENT PERTURBATION OF NMR-SPECTRA - A COMPARISON WITH PHOTOCHEMICALLY INDUCED DYNAMIC NUCLEAR-POLARIZATION TECHNIQUES APPLIED TO NATIVE ALPHA-LACTALBUMIN

Authors :
IMPROTA S
MOLINARI H
PASTORE A
CONSONNI R
ZETTA L
RI Molinari Henriette/A-1695-2008
Improta, S
Molinari, H
Pastore, A
Consonni, R
Zetta, L
RI Molinari, Henriette/A-1695-2008
Source :
European journal of biochemistry, 227 (1995): 78–86. doi:10.1111/j.1432-1033.1995.tb20361.x, info:cnr-pdr/source/autori:IMPROTA, S; MOLINARI, H; PASTORE, A; CONSONNI, R; ZETTA, L/titolo:PROBING PROTEIN-STRUCTURE BY SOLVENT PERTURBATION OF NMR-SPECTRA-A COMPARISON WITH PHOTOCHEMICALLY INDUCED DYNAMIC NUCLEAR-POLARIZATION TECHNIQUES APPLIED TO NATIVE ALPHA-LACTALBUMIN/doi:10.1111%2Fj.1432-1033.1995.tb20361.x/rivista:European journal of biochemistry (Print)/anno:1995/pagina_da:78/pagina_a:86/intervallo_pagine:78–86/volume:227
Publication Year :
1995

Abstract

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.

Details

Language :
English
Database :
OpenAIRE
Journal :
European journal of biochemistry, 227 (1995): 78–86. doi:10.1111/j.1432-1033.1995.tb20361.x, info:cnr-pdr/source/autori:IMPROTA, S; MOLINARI, H; PASTORE, A; CONSONNI, R; ZETTA, L/titolo:PROBING PROTEIN-STRUCTURE BY SOLVENT PERTURBATION OF NMR-SPECTRA-A COMPARISON WITH PHOTOCHEMICALLY INDUCED DYNAMIC NUCLEAR-POLARIZATION TECHNIQUES APPLIED TO NATIVE ALPHA-LACTALBUMIN/doi:10.1111%2Fj.1432-1033.1995.tb20361.x/rivista:European journal of biochemistry (Print)/anno:1995/pagina_da:78/pagina_a:86/intervallo_pagine:78–86/volume:227
Accession number :
edsair.doi.dedup.....57a8bb7e442350f693e30e7f2b326fca
Full Text :
https://doi.org/10.1111/j.1432-1033.1995.tb20361.x