1DFS

SOLUTION STRUCTURE OF THE ALPHA-DOMAIN OF MOUSE METALLOTHIONEIN-1


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 
  • Selection Criteria: MINIMIZED AVERAGE STRUCTURE 

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This is version 1.2 of the entry. See complete history


Literature

Three-dimensional solution structure of mouse [Cd7]-metallothionein-1 by homonuclear and heteronuclear NMR spectroscopy.

Zangger, K.Oz, G.Otvos, J.D.Armitage, I.M.

(1999) Protein Sci 8: 2630-2638

  • DOI: 10.1110/ps.8.12.2630
  • Primary Citation of Related Structures:  
    1DFT, 1DFS

  • PubMed Abstract: 
  • Sequential 1H-NMR assignments of mouse [Cd7]-metallothionein-1 (MT1) have been carried out by standard homonuclear NMR methods and the use of an accordion-heteronuclear multiple quantum correlation (HMQC) experiment for establishing the metal, 113Cd2+, to cysteine connectivities ...

    Sequential 1H-NMR assignments of mouse [Cd7]-metallothionein-1 (MT1) have been carried out by standard homonuclear NMR methods and the use of an accordion-heteronuclear multiple quantum correlation (HMQC) experiment for establishing the metal, 113Cd2+, to cysteine connectivities. The three-dimensional structure was then calculated using the distance constraints from two-dimensional nuclear Overhauser effect (NOE) spectroscopy spectra and the Cys-Cd connectivities as input for a distance geometry-dynamical simulated annealing protocol in X-PLOR 3.851. Similar to the mammalian MT2 isoforms, the homologous primary structure of MT1 suggested two separate domains, each containing one metal cluster. Because there were no interdomain constraints, the structure calculation for the N-terminal beta- and the C-terminal alpha-domain were carried out separately. The structures are based on 409 NMR constraints, consisting of 381 NOEs and 28 cysteine-metal connectivities. The only elements of regular secondary structure found were two short stretches of 3(10) helices along with some half-turns in the alpha-domain. Structural comparison with rat liver MT2 showed high similarity, with the beta-domain structure in mouse MT1 showing evidence of increased flexibility compared to the same domain in MT2. The latter was reflected by the presence of fewer interresidue NOEs, no slowly exchanging backbone amide protons, and enhanced cadmium-cadmium exchange rates found in the beta-domain of MT1.


    Organizational Affiliation

    Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis 55455, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
METALLOTHIONEIN-1A31Mus musculusMutation(s): 0 
Gene Names: Mt1
UniProt & NIH Common Fund Data Resources
Find proteins for P02802 (Mus musculus)
Explore P02802 
Go to UniProtKB:  P02802
IMPC:  MGI:97171
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 
  • Selection Criteria: MINIMIZED AVERAGE STRUCTURE 
  • OLDERADO: 1DFS Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-12-01
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance