2MFP | pdb_00002mfp

Solution structure of the circular g-domain analog from the wheat metallothionein Ec-1

• PDB DOI: https://doi.org/10.2210/pdb2MFP/pdb
• BMRB: 19557

• Classification: METAL BINDING PROTEIN
• Organism(s): Triticum aestivum
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2013-10-14 Released: 2013-11-27 
• Deposition Author(s): Tarasava, K., Johannsen, S., Freisinger, E.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Solution Structure of the Circular gamma-Domain Analog from the Wheat Metallothionein Ec-1.

Tarasava, K., Johannsen, S., Freisinger, E.

(2013) Molecules 18: 14414-14429

• PubMed: 24284492 
• DOI: https://doi.org/10.3390/molecules181114414
• Primary Citation Related Structures: 
  2MFP


• PubMed Abstract: 
  

  The first cyclic analog of a metallothionein (MT) was prepared and analyzed by UV and (magnetic) circular dichroism spectroscopy, ESI-MS as well as NMR spectroscopy. Results reveal that the evaluated cyclic γ-E(c)-1 domain of the wheat MT E(c)-1 retains its ability to coordinate two Zn(II) or Cd(II) ions and adopts a three-dimensional structure that is highly similar to the one of the linear wild-type form. However, the reduced flexibility of the protein backbone facilitates structure solution significantly and results in a certain stabilization of metal binding to the protein.

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Organizational Affiliation: 
• Institute of Inorganic Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich CH-8057, Switzerland. [e-mail].

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 3.02 kDa 
• Atom Count: 189 
• Modeled Residue Count: 31 
• Deposited Residue Count: 31 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
EC protein I/II	A	31	Triticum aestivum	Mutation(s): 0
UniProt
Find proteins for P30569 (Triticum aestivum) Explore P30569  Go to UniProtKB:  P30569

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CD	B [auth A], C [auth A]	CADMIUM ION Cd WLZRMCYVCSSEQC-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-11-27 
Deposition Author(s): Tarasava, K., Johannsen, S., Freisinger, E.

Revision History  

• Version 1.0: 2013-11-27
  Type: Initial release
  
• Version 1.1: 2013-12-25
  Changes: Database references
• Version 1.2: 2023-06-14
  Changes: Data collection, Database references, Derived calculations, Other
• Version 1.3: 2024-11-06
  Changes: Data collection, Database references, Structure summary