ISDA

Entry Detail

PDB ID:

2MFP

Keywords:

METAL BINDING PROTEIN

Title:

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

Biological Source:

Source Organism:

Triticum aestivum

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2013-10-14

Release Date:

2013-11-27

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Calculated:

100

Conformers Submitted:

Selection Criteria:

structures with the lowest energy

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:EC protein I/II
Chain IDs:A
Chain Length:31
Number of Molecules:1
Biological Source:Triticum aestivum

UniProt ID:P30569 Pfam ID:PF02068

Ligand Molecules

Primary Citation

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

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

Molecules 18 14414 14429 (2013)

PMID: 24284492 DOI: 10.3390/molecules181114414

Abstact

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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Primary Citation of related structures