4XWN

Complex structure of catalytic domain of Clostridium Cellulovorans Exgs and Cellotetraose

• PDB DOI: https://doi.org/10.2210/pdb4XWN/pdb
• Entry: 4XWN supersedes: 4KKK

• Classification: HYDROLASE
• Organism(s): Clostridium cellulovorans
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2015-01-29 Released: 2015-10-28 
• Deposition Author(s): Liaw, Y.-C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.88 Å
• R-Value Free: 0.193 
• R-Value Work: 0.164 
• R-Value Observed: 0.166 

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: 77.14 kDa 
• Atom Count: 5,120 
• Modelled Residue Count: 633 
• Deposited Residue Count: 681 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Exoglucanase S	A	681	Clostridium cellulovorans	Mutation(s): 0  Gene Names: exgS EC: 3.2.1.91
UniProt
Find proteins for O65986 (Clostridium cellulovorans) Explore O65986  Go to UniProtKB:  O65986

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-glucopyranose-(1-4)-beta-D-glucopyranose	B	2		N/A
Glycosylation Resources
GlyTouCan:  G84824ZO GlyCosmos:  G84824ZO

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose-(1-4)-beta-D-glucopyranose	C	5		N/A
Glycosylation Resources
GlyTouCan:  G91683DU GlyCosmos:  G91683DU

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	D [auth A], E [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Biologically Interesting Molecules (External Reference) 2 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900005	B	beta-cellobiose	Oligosaccharide / Metabolism

Entity ID: 3
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900016	C	beta-cellopentaose	Oligosaccharide / Metabolism

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.88 Å
• R-Value Free: 0.193 
• R-Value Work: 0.164 
• R-Value Observed: 0.166 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 108.856	α = 90
b = 108.856	β = 90
c = 182.38	γ = 90

Software Package:

Software Name	Purpose
SCALEPACK	data reduction
PHASER	phasing
RESOLVE	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-10-28 
Deposition Author(s): Liaw, Y.-C.
• This entry supersedes: 4KKK

Revision History  

• Version 1.0: 2015-10-28
  Type: Initial release
  
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2023-11-08
  Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary