7CJU

Crystal structure of inactive form of chitosanase crystallized by ammonium sulfate

• PDB DOI: https://doi.org/10.2210/pdb7CJU/pdb

• Classification: HYDROLASE
• Organism(s): Bacillus sp. K17-2
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2020-07-14 Released: 2020-07-29 
• Deposition Author(s): Guo, Y., Qu, L., Nishida, N., Hoshino, T.
• Funding Organization(s): Japan Society for the Promotion of Science (JSPS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.74 Å
• R-Value Free: 0.190 
• R-Value Work: 0.155 
• R-Value Observed: 0.157 

Starting Model: experimental

Literature

Electrostatic Potentials around the Proteins Preferably Crystallized by Ammonium Sulfate

Guo, Y., Qu, L., Nishida, N., Hoshino, T.

(2021) Cryst Growth Des 21: 297-305

• DOI: https://doi.org/10.1021/acs.cgd.0c01136

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 89.19 kDa 
• Atom Count: 7,154 
• Modelled Residue Count: 776 
• Deposited Residue Count: 792 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glucanase	A, B	396	Bacillus sp. K17-2	Mutation(s): 2  EC: 3.2.1

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.74 Å
• R-Value Free: 0.190 
• R-Value Work: 0.155 
• R-Value Observed: 0.157 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.949	α = 90
b = 92.13	β = 90
c = 168.043	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PDB_EXTRACT	data extraction
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2020-07-29 
Deposition Author(s): Guo, Y., Qu, L., Nishida, N., Hoshino, T.

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Funding Organization	Location	Grant Number
Japan Society for the Promotion of Science (JSPS)	Japan	18K07138

Revision History  

• Version 1.0: 2020-07-29
  Type: Initial release
  
• Version 1.1: 2021-02-10
  Changes: Database references
• Version 1.2: 2023-11-29
  Changes: Data collection, Database references, Refinement description