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Angular dependence of dipole-dipole-Curie-spin cross-correlation effects in high-spin and low-spin paramagnetic myoglobin

Pintacuda, Guido; Hohenthanner, Karin; Norbert, M; Otting, Gottfried


The 15N-HSQC spectra of low-spin cyano-met-myoglobin and high-spin fluoro-met-myoglobin were assigned and dipole-dipole-Curie-spin cross-correlated relaxation rates measured. These cross-correlation rates originating from the dipolar 1H-15N interaction and the dipolar interaction between the 1H and the Curie spin of the paramagnetic center contain long-range angular information about the orientation of the 1H-15N bond with respect to the iron-1H vector, with information measurable up to 11 Å...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
Source: Journal of Biomolecular NMR
DOI: 10.1023/A:1024926126239


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