1QI0

ENDOGLUCANASE CEL5A FROM BACILLUS AGARADHAERENS IN THE TETRAGONAL CRYSTAL FORM IN COMPLEX WITH CELLOBIOSE

• PDB DOI: https://doi.org/10.2210/pdb1QI0/pdb

• Classification: HYDROLASE
• Organism(s): Salipaludibacillus agaradhaerens
• Expression System: Bacillus subtilis
• Mutation(s): No 


• Deposited: 1999-06-02 Released: 2000-06-07 
• Deposition Author(s): Varrot, A., Schulein, M., Davies, G.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.210 
• R-Value Work: 0.172 
• R-Value Observed: 0.168 

Biological Assembly 1  

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

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

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 34.7 kDa 
• Atom Count: 2,720 
• Modelled Residue Count: 302 
• Deposited Residue Count: 305 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ENDOGLUCANASE B	A	305	Salipaludibacillus agaradhaerens	Mutation(s): 0  EC: 3.2.1.4
UniProt
Find proteins for O85465 (Salipaludibacillus agaradhaerens) Explore O85465  Go to UniProtKB:  O85465

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

Small Molecules

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

Biologically Interesting Molecules (External Reference) 1 Unique

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.210 
• R-Value Work: 0.172 
• R-Value Observed: 0.168 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 74.71	α = 90
b = 74.71	β = 90
c = 136.475	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-06-07 
Deposition Author(s): Varrot, A., Schulein, M., Davies, G.J.

Revision History  

• Version 1.0: 2000-06-07
  Type: Initial release
  
• Version 1.1: 2007-10-16
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary
• Version 2.1: 2023-12-27
  Changes: Data collection, Database references, Structure summary