3RGR

Crystal structure of ketosteroid isomerase M116A from Pseudomonas putida

• PDB DOI: https://doi.org/10.2210/pdb3RGR/pdb

• Classification: ISOMERASE
• Organism(s): Pseudomonas putida
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2011-04-08 Released: 2012-08-22 
• Deposition Author(s): Gonzalez, A., Tsai, Y., Schwans, J., Sunden, F., Herschlag, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.59 Å
• R-Value Free: 0.225 
• R-Value Work: 0.179 
• R-Value Observed: 0.181 

Literature

Crystal structure of ketosteroid isomerase M116A from Pseudomonas putida

Gonzalez, A., Tsai, Y., Schwans, J., Sunden, F., Herschlag, D.

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)

Macromolecule Content

• Total Structure Weight: 14.49 kDa 
• Atom Count: 1,363 
• Modelled Residue Count: 128 
• Deposited Residue Count: 131 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Steroid Delta-isomerase	A	131	Pseudomonas putida	Mutation(s): 1  Gene Names: ksi EC: 5.3.3.1
UniProt
Find proteins for P07445 (Pseudomonas putida) Explore P07445  Go to UniProtKB:  P07445

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.59 Å
• R-Value Free: 0.225 
• R-Value Work: 0.179 
• R-Value Observed: 0.181 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 35.82	α = 90
b = 94.723	β = 90
c = 72.391	γ = 90

Software Package:

Software Name	Purpose
SCALA	data scaling
MOLREP	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-08-22 
Deposition Author(s): Gonzalez, A., Tsai, Y., Schwans, J., Sunden, F., Herschlag, D.

Revision History  

• Version 1.0: 2012-08-22
  Type: Initial release
  
• Version 1.1: 2017-11-08
  Changes: Refinement description
• Version 1.2: 2023-09-13
  Changes: Data collection, Database references, Refinement description