3IS3

Crystal structure of 17beta-Hydroxysteroid dehydrogenase (Apo form) from fungus Cochliobolus lunatus

• PDB DOI: https://doi.org/10.2210/pdb3IS3/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Curvularia lunata
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-08-25 Released: 2010-08-18 
• Deposition Author(s): Cassetta, A., Lamba, D., Krastanova, I.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.48 Å
• R-Value Free: 0.188 
• R-Value Work: 0.175 
• R-Value Observed: 0.176 

Starting Model: experimental

Literature

Structural studies on a fungal 17beta Hydroxysteroid dehydrogenase

Cassetta, A., Lamba, D., Krastanova, I., Stojan, J., Rizner, T.L., Kristan, K.

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 and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 29.21 kDa 
• Atom Count: 2,314 
• Modelled Residue Count: 260 
• Deposited Residue Count: 270 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
17beta-hydroxysteroid dehydrogenase	A	270	Curvularia lunata	Mutation(s): 0  Gene Names: 17HSDcl EC: 1.1.1.62
UniProt
Find proteins for O93874 (Cochliobolus lunatus) Explore O93874  Go to UniProtKB:  O93874

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PEG	D [auth A]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
GOL	E [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CL	B [auth A], C [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.48 Å
• R-Value Free: 0.188 
• R-Value Work: 0.175 
• R-Value Observed: 0.176 
• Space Group: I 4₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.914	α = 90
b = 67.914	β = 90
c = 268.347	γ = 90

Software Package:

Software Name	Purpose
MAR345	data collection
PHASER	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-08-18 
Deposition Author(s): Cassetta, A., Lamba, D., Krastanova, I.

Revision History  

• Version 1.0: 2010-08-18
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-01
  Changes: Refinement description
• Version 1.3: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description