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Double quantum two-dimensional Fourier transform electron spin resonance: Distance measurements

โœ Scribed by Sunil Saxena; Jack H. Freed

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
746 KB
Volume
251
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

The first double quantum two-dimensional Fourier transform electron spin resonance (2D-ET ESR) experiments are reported. Extension of 2D-FT ESR to enable detection of the AM, = f2 transition enhances the capability of ESR in studying structural properties (i.e. distances in bilabeled molecules). A distance of 21 %, was found for a poly-proline peptide, spin labeled at both ends, in agreement with earlier measurements using fluorescence energy transfer.

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