6TO0

Structure of E70A mutant of Rex8A from Paenibacillus barcinonensis complexed with 2(3)-alpha-L-arabinofuranosyl-xylotriose.

• PDB DOI: https://doi.org/10.2210/pdb6TO0/pdb

• Classification: HYDROLASE
• Organism(s): Paenibacillus barcinonensis
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2019-12-11 Released: 2020-05-27 
• Deposition Author(s): Jimenez-Ortega, E., Ramirez-Escudero, M., Sanz-Aparicio, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.88 Å
• R-Value Free: 0.257 
• R-Value Work: 0.234 
• R-Value Observed: 0.235 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 90.63 kDa 
• Atom Count: 6,757 
• Modelled Residue Count: 760 
• Deposited Residue Count: 770 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Reducing-end xylose-releasing exo-oligoxylanase Rex8A	A, B	385	Paenibacillus barcinonensis	Mutation(s): 1  Gene Names: rex8A, DFQ00_11062 EC: 3.2.1.156
UniProt
Find proteins for A0A0S2UQQ5 (Paenibacillus barcinonensis) Explore A0A0S2UQQ5  Go to UniProtKB:  A0A0S2UQQ5

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-L-arabinofuranose-(1-2)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose-(1-4)-beta-D-xylopyranose	C, D	4		N/A
Glycosylation Resources
GlyTouCan:  G56943RO GlyCosmos:  G56943RO

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	E [auth A], F [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.88 Å
• R-Value Free: 0.257 
• R-Value Work: 0.234 
• R-Value Observed: 0.235 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 87.9	α = 90
b = 87.9	β = 90
c = 274.18	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
Aimless	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-05-27 
Deposition Author(s): Jimenez-Ortega, E., Ramirez-Escudero, M., Sanz-Aparicio, J.

Revision History  

• Version 1.0: 2020-05-27
  Type: Initial release
  
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2020-12-30
  Changes: Database references, Derived calculations, Structure summary
• Version 2.2: 2024-01-24
  Changes: Data collection, Database references, Refinement description