ISDA

Deposition Date 2012-05-30

Release Date 2013-06-12

Last Version Date 2023-09-13

Entry Detail

PDB ID:

4FES

Keywords:

LIPID BINDING PROTEIN

Title:

Structure of OSH4 in complex with cholesterol analogs

Biological Source:

Source Organism:

Saccharomyces cerevisiae (Taxon ID: 559292)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.00 Å

R-Value Free:

0.26

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 1

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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

0T9

Primary Citation

Synthesis and structure of 16,22-diketocholesterol bound to oxysterol-binding protein Osh4.

Koag, M.C, Cheun, Y, Kou, Y, Ouzon-Shubeita, H, Min, K, Monzingo, A.F, Lee, S.Show

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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Primary Citation of related structures