ISDA: 4MAC

Deposition Date 2013-08-16

Release Date 2014-07-02

Last Version Date 2024-03-20

Entry Detail

PDB ID:

4MAC

Keywords:

APOPTOSIS

Title:

Crystal structure of CIDE-N domain of FSP27

Biological Source:

Source Organism(s):

Mus musculus (Taxon ID: 10090)

Expression System(s):

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.00 Å

R-Value Free:

0.29

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

P 32

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cell death activator CIDE-3
Gene (Uniprot):Cidec
Chain IDs:A, B
Chain Length:97
Number of Molecules:2
Biological Source:Mus musculus

UniProt ID:P56198 Pfam ID:PF02017

Primary Citation

Molecular basis for homo-dimerization of the CIDE domain revealed by the crystal structure of the CIDE-N domain of FSP27

Lee, S.M, Jang, T.H, Park, H.H.Show

Biochem.Biophys.Res.Commun. 439 564 569 (2013)

PMID: 24025675 DOI: 10.1016/j.bbrc.2013.09.018

Abstact

FSP27 (CIDE-3 in humans) plays critical roles in lipid metabolism and apoptosis and is known to be involved in regulation of lipid droplet (LD) size and lipid storage and apoptotic DNA fragmentation. Given that CIDE-containing proteins including FSP27 are associated with many human diseases including cancer, aging, diabetes, and obesity, studies of FSP27 and other CIDE-containing proteins are of great biological importance. As a first step toward elucidating the molecular mechanisms of FSP27-mediated lipid droplet growth and apoptosis, we report the crystal structure of the CIDE-N domain of FSP27 at a resolution of 2.0 Å. The structure revealed a possible biologically important homo-dimeric interface similar to that formed by the hetero-dimeric complex, CAD/ICAD. Comparison with other structural homologues revealed that the PB1 domain of BEM1P, ubiquitin-like domain of BAG6 and ubiquitin are structurally similar proteins. Our homo-dimeric structure of the CIDE-N domain of FSP27 will provide important information that will enable better understanding of the function of FSP27.

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Primary Citation of related structures

Abstact

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