1QGI

CHITOSANASE FROM BACILLUS CIRCULANS

• PDB DOI: https://doi.org/10.2210/pdb1QGI/pdb

• Classification: HYDROLASE
• Organism(s): Niallia circulans
• Expression System: Brevibacillus brevis
• Mutation(s): No 


• Deposited: 1999-04-28 Released: 1999-10-25 
• Deposition Author(s): Saito, J., Kita, A., Higuchi, Y., Nagata, Y., Ando, A., Miki, K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.235 
• R-Value Work: 0.192 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 29.63 kDa 
• Atom Count: 2,226 
• Modelled Residue Count: 259 
• Deposited Residue Count: 259 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN (CHITOSANASE)	A	259	Niallia circulans	Mutation(s): 0  EC: 3.2.1.132
UniProt
Find proteins for P33673 (Niallia circulans) Explore P33673  Go to UniProtKB:  P33673

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-amino-2-deoxy-beta-D-glucopyranose-(1-4)-2-amino-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	B	3		N/A
Glycosylation Resources
GlyTouCan:  G93015JH GlyCosmos:  G93015JH

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 0.235 
• R-Value Work: 0.192 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 43.3	α = 90
b = 128	β = 90
c = 57.7	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-10-25 
Deposition Author(s): Saito, J., Kita, A., Higuchi, Y., Nagata, Y., Ando, A., Miki, K.

Revision History  

• Version 1.0: 1999-10-25
  Type: Initial release
  
• Version 1.1: 2008-04-26
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Structure summary
• Version 2.1: 2023-12-27
  Changes: Data collection, Database references, Structure summary