2mrt
CONFORMATION OF CD-7 METALLOTHIONEIN-2 FROM RAT LIVER IN AQUEOUS SOLUTION DETERMINED BY NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY
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OverviewOverview
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.
About this StructureAbout this Structure
2MRT is a Single protein structure of sequence from Rattus rattus with CD as ligand. Full crystallographic information is available from OCA.
ReferenceReference
Conformation of [Cd7]-metallothionein-2 from rat liver in aqueous solution determined by nuclear magnetic resonance spectroscopy., Schultze P, Worgotter E, Braun W, Wagner G, Vasak M, Kagi JH, Wuthrich K, J Mol Biol. 1988 Sep 5;203(1):251-68. PMID:3184190
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