✦ LIBER ✦
Copper-cobalt superoxide dismutase: A re-examination of the 1H NMR spectrum through a novel selectively deuteriated derivative
✍ Scribed by Ivano Bertini; Mario Piccioli; Andrea Scozzafava; Maria Silvia Viezzoli
- Publisher
- John Wiley and Sons
- Year
- 1993
- Tongue
- English
- Weight
- 572 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0749-1581
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✦ Synopsis
Abstract
Through 1D and 2D NOESY experiments, samples of copper‐cobalt superoxide dismutase in which the histidines had been completely deuteriated except for the β‐CH~2~ protons were investigated. In this way a simplified spectrum was obtained which allowed the detection of the His NHs of the cobalt domain and their assignment through the kinetics of the proton‐deuterium exchange. Further, the β‐CH~2~ protons of Asp 83 were stereospecifically assigned through T~1~ measurements. Some backbone protons were also assigned.