J Magn Reson. 1999 Oct;140(2):510-2.

Observation of through-hydrogen-bond 2hJHC' in a perdeuterated protein.

Cordier F, Rogowski M, Grzesiek S, Bax A.

Source

Institute of Structural Biology, Forschungszentrum Jülich, Jülich, 52425, Germany.

Abstract

It is demonstrated that J connectivity between amide protons and hydrogen-bond-accepting carbonyl carbons can be observed in perdeuterated human ubiquitin. A selective pulse scheme is used to detect these small 2hJHC' interactions in the presence of the much larger through-covalent-bond 2JHC' and 3JHC' couplings. The ratio of the observed through-H-bond correlation intensity and the 2JHC' connectivity observed in a reference spectrum indicates 2hJHC' values of ca. 0.4-0.6 Hz, which are only slightly smaller than the corresponding 3hJNC' values. However, for technical reasons, 2hJHC' couplings are more difficult to measure than 3hJNC'.

PMID:: 10497060; [PubMed - indexed for MEDLINE]

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Observation of through-hydrogen-bond 2hJHC' in a perdeuterated protein.
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J Magn Reson. 1999 Oct ;140(2):510-2.

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