4JCH

OSH4 bound to an electrophilic oxysterol

• PDB DOI: https://doi.org/10.2210/pdb4JCH/pdb

• Classification: LIPID BINDING PROTEIN
• Organism(s): Saccharomyces cerevisiae S288C
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 
• Membrane Protein: Yes  OPM


• Deposited: 2013-02-21 Released: 2014-03-26 
• Deposition Author(s): Koag, M.C., Kou, Y.I., Monzingo, A.F., Lee, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.215 
• R-Value Work: 0.181 
• R-Value Observed: 0.182 

Literature

Structure of OSH4 bound to an electrophilic oxysterol

Koag, M.C., Kou, Y., Monzingo, A.F., Lee, S.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 3 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 100.49 kDa 
• Atom Count: 7,400 
• Modelled Residue Count: 866 
• Deposited Residue Count: 872 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein KES1	A, B	436	Saccharomyces cerevisiae S288C	Mutation(s): 0  Gene Names: KES1, LPI3C, OSH4, P2614, YPL145C Membrane Entity: Yes
UniProt
Find proteins for P35844 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P35844  Go to UniProtKB:  P35844

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
1KG	C [auth A], D [auth B]	(3beta,9beta,22R,25R)-3-hydroxyfurost-5-en-27-yl propanoate C30 H48 O4 LPEDPXMEGSUFII-ORSAPSQYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.215 
• R-Value Work: 0.181 
• R-Value Observed: 0.182 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.62	α = 99.17
b = 65.689	β = 100.17
c = 77.939	γ = 96.76

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
BOS	data collection
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-03-26 
Deposition Author(s): Koag, M.C., Kou, Y.I., Monzingo, A.F., Lee, S.

Revision History  

• Version 1.0: 2014-03-26
  Type: Initial release
  
• Version 1.1: 2015-01-07
  Changes: Database references
• Version 1.2: 2017-11-15
  Changes: Refinement description
• Version 1.3: 2023-09-20
  Changes: Data collection, Database references, Derived calculations, Refinement description