3CUI

Cellulomonas fimi Xylanase/Cellulase Cex (Cf Xyn10A) in complex with sulfur substituted beta-1,4 xylotetraose

• PDB DOI: https://doi.org/10.2210/pdb3CUI/pdb

• Classification: HYDROLASE
• Organism(s): Cellulomonas fimi
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-04-16 Released: 2009-04-21 
• Deposition Author(s): Kuntz, D.A., Saul, M., Rose, D.R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 
  0.167 (Depositor), 0.140 (DCC) 
• R-Value Work: 
  0.133 (Depositor), 0.140 (DCC) 
• R-Value Observed: 
  0.135 (Depositor) 

Starting Model: experimental

Literature

Probing the binding sites of Family 10 and 11 Xylanases with extended Oligosaccharides

Poon, D.K.Y., D'Angelo, I.D., Kuntz, D.A., Kantner, T., Ludkiwzek, M.L., Tarling, C., Rose, D.R., Saul, M., McIntosh, L.P., Withers, S.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: 34.86 kDa 
• Atom Count: 2,953 
• Modelled Residue Count: 314 
• Deposited Residue Count: 315 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Exo-beta-1,4-glucanase	A	315	Cellulomonas fimi	Mutation(s): 0  Gene Names: cex EC: 3.2.1.91 (PDB Primary Data), 3.2.1.8 (UniProt)
UniProt
Find proteins for P07986 (Cellulomonas fimi) Explore P07986  Go to UniProtKB:  P07986

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-xylopyranose-(1-4)-4-thio-beta-D-xylopyranose-(1-4)-4-thio-beta-D-xylopyranose-(1-4)-4-thio-beta-D-xylopyranose	B	4	N/A	N/A
Glycosylation Resources
GlyTouCan:  G35208SC GlyCosmos:  G35208SC

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900103	B	thio-xylotetraose	Oligosaccharide / Substrate analog

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free:  0.167 (Depositor), 0.140 (DCC) 
• R-Value Work:  0.133 (Depositor), 0.140 (DCC) 
• R-Value Observed: 0.135 (Depositor) 

Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 85.7	α = 90
b = 85.7	β = 90
c = 78.977	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SCALEPACK	data scaling
CNS	refinement
DENZO	data reduction
PDB_EXTRACT	data extraction
ADSC	data collection
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-04-21 
Deposition Author(s): Kuntz, D.A., Saul, M., Rose, D.R.

Revision History  

• Version 1.0: 2009-04-21
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-10-25
  Changes: Refinement description
• Version 1.3: 2019-07-24
  Changes: Data collection, Refinement description
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary
• Version 2.1: 2023-08-30
  Changes: Data collection, Database references, Refinement description, Structure summary
• Version 2.2: 2024-10-16
  Changes: Structure summary