4F4B image
Deposition Date 2012-05-10
Release Date 2013-05-15
Last Version Date 2024-02-28
Entry Detail
PDB ID:
4F4B
Keywords:
LIPID BINDING PROTEIN
Title:
Structure of OSH4 with a cholesterol analog
Biological Source:
Source Organism:
Saccharomyces cerevisiae (Taxon ID: 559292)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.87 Å
R-Value Free:
0.27
R-Value Work:
0.21
R-Value Observed:
0.21
Space Group:
P 1
4F4B validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Protein KES1
Gene (Uniprot):KES1
Chain IDs:A, B
Chain Length:436
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
UniProt ID:P35844 Pfam ID:PF01237
Ligand Molecules
L39
Primary Citation
Synthesis and structure of 16,22-diketocholesterol bound to oxysterol-binding protein Osh4.
Steroids 78 938 944 (2013)
PMID: 23756172 DOI: 10.1016/j.steroids.2013.05.016

Abstact

We have synthesized 16,22-diketocholesterol, a novel ligand for oxysterol-binding protein Osh4, and determined X-ray structure of the diketocholesterol in complex with Osh4. The X-ray structure shows that α7 helix of Osh4 assumes open conformation while the rest of Osh4, closed conformation, implying this diketocholesterol-bound Osh4 structure may represent a structural intermediate between the two conformations.

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Disease

Primary Citation of related structures
1ZHY
1ZHX