4JJ6

Crystal structure of a catalytic mutant of Axe2 (Axe2-H194A), an acetylxylan esterase from Geobacillus stearothermophilus

• PDB DOI: https://doi.org/10.2210/pdb4JJ6/pdb

• Classification: HYDROLASE
• Organism(s): Geobacillus stearothermophilus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2013-03-07 Released: 2014-03-12 
• Deposition Author(s): Lansky, S., Alalouf, O., Solomon, V., Alhassid, A., Belrahli, H., Govada, L., Chayan, N.E., Shoham, Y., Shoham, G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.186 
• R-Value Work: 0.149 
• R-Value Observed: 0.151 

Literature

To be published

Lansky, S., Alalouf, O., Solomon, V., Alhassid, A., Belrahli, H., Govada, L., Chayan, N.E., Shoham, Y., Shoham, G.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D4  (Explore in 3D)
Global Stoichiometry: Homo 8-mer - A8 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 50 kDa 
• Atom Count: 4,072 
• Modelled Residue Count: 438 
• Deposited Residue Count: 438 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Acetyl xylan esterase	A, B	219	Geobacillus stearothermophilus	Mutation(s): 1  Gene Names: axe2 EC: 3.1.1.72
UniProt
Find proteins for Q09LX1 (Geobacillus stearothermophilus) Explore Q09LX1  Go to UniProtKB:  Q09LX1

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	C [auth A], D [auth A], E [auth A], F [auth A], H [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CL	G [auth A], I [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.186 
• R-Value Work: 0.149 
• R-Value Observed: 0.151 
• Space Group: I 4 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 110.032	α = 90
b = 110.032	β = 90
c = 213.135	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-03-12 
Deposition Author(s): Lansky, S., Alalouf, O., Solomon, V., Alhassid, A., Belrahli, H., Govada, L., Chayan, N.E., Shoham, Y., Shoham, G.

Revision History  

• Version 1.0: 2014-03-12
  Type: Initial release
  
• Version 1.1: 2017-11-15
  Changes: Refinement description
• Version 1.2: 2024-02-28
  Changes: Data collection, Database references, Derived calculations