4L4O

The crystal structure of CbXyn10B in native form

• PDB DOI: https://doi.org/10.2210/pdb4L4O/pdb

• Classification: HYDROLASE
• Organism(s): Caldicellulosiruptor bescii DSM 6725
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-06-08 Released: 2014-05-07 
• Deposition Author(s): An, J., Feng, Y., Wu, G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.236 
• R-Value Work: 0.188 
• R-Value Observed: 0.191 

Literature

Crystal structure of CbXyn10B from Caldicellulosiruptor bescii and its mutant(E139A) in complex with xylotriose

An, J., Feng, Y., Wu, G.

To be published.

Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 41.45 kDa 
• Atom Count: 2,871 
• Modelled Residue Count: 330 
• Deposited Residue Count: 345 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Endo-1,4-beta-xylanase	A	345	Caldicellulosiruptor bescii DSM 6725	Mutation(s): 0  Gene Names: Athe_0185 EC: 3.2.1.8
UniProt
Find proteins for B9MMA5 (Caldicellulosiruptor bescii (strain ATCC BAA-1888 / DSM 6725 / KCTC 15123 / Z-1320)) Explore B9MMA5  Go to UniProtKB:  B9MMA5

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
144	B [auth A]	TRIS-HYDROXYMETHYL-METHYL-AMMONIUM C4 H12 N O3 DRDCQJADRSJFFD-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.236 
• R-Value Work: 0.188 
• R-Value Observed: 0.191 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.701	α = 90
b = 78.801	β = 90
c = 115.959	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-05-07 
Deposition Author(s): An, J., Feng, Y., Wu, G.

Revision History  

• Version 1.0: 2014-05-07
  Type: Initial release
  
• Version 1.1: 2017-11-15
  Changes: Refinement description
• Version 1.2: 2024-03-20
  Changes: Data collection, Database references, Derived calculations