1J5L

NMR STRUCTURE OF THE ISOLATED BETA_C DOMAIN OF LOBSTER METALLOTHIONEIN-1


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the (113)Cd(3)beta domains from Homarus americanus metallothionein-1: hydrogen bonding and solvent accessibility of sulfur atoms

Munoz, A.Forsterling, F.H.Shaw III, C.F.Petering, D.H.

(2002) J.Biol.Inorg.Chem. 7: 713-724

  • DOI: 10.1007/s00775-002-0345-3
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The three-dimensional structures of the isolated Cd(3)beta domains from Homarus americanus metallothionein have been determined by NMR methods in order to establish a set of beta-domain structures for comparative analysis. First, it was determined th ...

    The three-dimensional structures of the isolated Cd(3)beta domains from Homarus americanus metallothionein have been determined by NMR methods in order to establish a set of beta-domain structures for comparative analysis. First, it was determined that the Cd-cysteine connectivities forming the Cd(3)S(9) metal center were identical to those observed for the beta(N) domain in the native holoprotein. Time- and temperature-dependence studies of the (113)Cd and (1)H 1D-NMR spectra indicated that the beta(N) domain undergoes slow conformational changes before reaching an equilibrium structure. In addition to structural information provided by the metal-to-cysteine connectivities, Phi, chi(1) and chi(2) angle constraints, three H(N...)S hydrogen bond interactions were also determined from a long-range optimized (1)H(N)-(113)Cd HMQC experiment. A simulated annealing protocol was applied to the distance and angle constraints obtained from the 2D-NMR experiments to calculate the three-dimensional structure of the synthetic Cd(3)beta(N) domain of lobster metallothionein. Structure-reactivity relationships are proposed for the reactions of Cd(3)beta domains with 5,5'-dithiobis(2-nitrobenzoate), based on comparisons of surface exposure of sulfur atoms of the lobster and rabbit Cd(3)beta domain structures. Finally, the surface exposure of the beta domains of lobster is compared with beta domains from mammalian metallothioneins.


    Organizational Affiliation

    Centro Nacional de Biotechnologia (CNB-CSIC), Madrid, Spain.




Macromolecules

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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
METALLOTHIONEIN-1
A
30Homarus americanusMutation(s): 0 
Find proteins for P29499 (Homarus americanus)
Go to UniProtKB:  P29499
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CD
Query on CD

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Download CCD File 
A
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-05-22
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance