Primary Citation of Related Structures: 1MRT, 2MRT
PubMed Abstract:
The three-dimensional structure of [Cd7]-metallothionein-2 from rat liver was determined in aqueous solution, using nuclear magnetic resonance spectrometry and distance geometry calculations. The experimental data provided proton-proton distance constraints from measurements of nuclear Overhauser effects, constraints on the geometry of the metal-cysteine clusters determined by heteronuclear correlation spectroscopy, and dihedral angle constraints derived from both coupling constants and nuclear Overhauser effects ...
The three-dimensional structure of [Cd7]-metallothionein-2 from rat liver was determined in aqueous solution, using nuclear magnetic resonance spectrometry and distance geometry calculations. The experimental data provided proton-proton distance constraints from measurements of nuclear Overhauser effects, constraints on the geometry of the metal-cysteine clusters determined by heteronuclear correlation spectroscopy, and dihedral angle constraints derived from both coupling constants and nuclear Overhauser effects. The structure calculations were performed with the program DISMAN. As in previous studies with rabbit liver metallothionein-2a, the structure calculations were performed separately for the alpha and beta-domains containing the 4 and 3-metal clusters, respectively, since no interdomain constraints were found. For both domains, the global polypeptide fold, the location of polypeptide secondary structure elements, the architecture of the metal-sulfur cluster and the local chirality of the metal co-ordination are very similar to the solution structure of rabbit metallothionein-2a, but show considerable difference relative to the crystal structure of rat metallothionein-2.
Related Citations:
Three-Dimensional Structure of Rabbit Liver Cd-7 Metallothionein-2A in Aqueous Solution Determined by Nuclear Magnetic Resonance. Arseniev, A., Schultze, P., Woergoetter, E., Braun, W., Wagner, G., Vasak, M., Kaegi, J.H.R., Wuthrich, K. (1988) J Mol Biol 201: 637
Sequence-Specific 1H-NMR Assignments in Rat-Liver Metallothionein-2 Woergoetter, E., Wagner, G., Vasak, M., Kaegi, J.H.R., Wuthrich, K. (1987) Eur J Biochem 167: 457
Metal Co-Ordination in Rat Liver Metallothionein-2 Prepared with or without Reconstitution of the Metal Clusters, and Comparison with Rabbit Liver Metallothionein-2. Vasak, M., Woergoetter, E., Wagner, G., Kaegi, J.H.R., Wuthrich, K. (1987) J Mol Biol 196: 711
Organizational Affiliation:
Institut für Molekularbiologie und Biophysik, Eidgenössische Technische Hochschule-Hönggerberg, Zürich, Switzerland.
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