3EW0 image
Entry Detail
PDB ID:
3EW0
Title:
The novel 2Fe-2S outer mitochondrial protein mitoNEET displays conformational flexibility in its N-terminal cytoplasmic tethering domain
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2008-10-13
Release Date:
2009-07-07
Method Details:
Experimental Method:
Resolution:
1.40 Å
R-Value Free:
0.24
R-Value Work:
0.19
R-Value Observed:
0.20
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:CDGSH iron sulfur domain-containing protein 1
Chain IDs:A, B
Chain Length:80
Number of Molecules:2
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
The novel 2Fe-2S outer mitochondrial protein mitoNEET displays conformational flexibility in its N-terminal cytoplasmic tethering domain.
Acta Crystallogr.,Sect.F 65 654 659 (2009)
PMID: 19574633 DOI: 10.1107/S1744309109019605

Abstact

A primary role for mitochondrial dysfunction is indicated in the pathogenesis of insulin resistance. A widely used drug for the treatment of type 2 diabetes is pioglitazone, a member of the thiazolidinedione class of molecules. MitoNEET, a 2Fe-2S outer mitochondrial membrane protein, binds pioglitazone [Colca et al. (2004), Am. J. Physiol. Endocrinol. Metab. 286, E252-E260]. The soluble domain of the human mitoNEET protein has been expressed C-terminal to the superfolder green fluorescent protein and the mitoNEET protein has been isolated. Comparison of the crystal structure of mitoNEET isolated from cleavage of the fusion protein (1.4 A resolution, R factor = 20.2%) with other solved structures shows that the CDGSH domains are superimposable, indicating proper assembly of mitoNEET. Furthermore, there is considerable flexibility in the position of the cytoplasmic tethering arms, resulting in two different conformations in the crystal structure. This flexibility affords multiple orientations on the outer mitochondrial membrane.

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Primary Citation of related structures