7XGQ | pdb_00007xgq

Crystal structure of chitosanase crystallized by ammonium sulfate with glycan

• PDB DOI: https://doi.org/10.2210/pdb7XGQ/pdb

• Classification: HYDROLASE
• Organism(s): Bacillus sp. K17-2
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2022-04-05 Released: 2022-04-20 
• Deposition Author(s): Guo, Y., Hoshino, T.
• Funding Organization(s): Japan Society for the Promotion of Science (JSPS)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 
  0.210 (Depositor), 0.210 (DCC) 
• R-Value Work: 
  0.182 (Depositor), 0.180 (DCC) 
• R-Value Observed: 
  0.183 (Depositor) 

Starting Model: experimental

Literature

Influence of Glycan Agents on Protein Crystallization with Ammonium Sulfate

Guo, Y., Hoshino, T.

(2022) Cryst Growth Des 

• DOI: https://doi.org/10.1021/acs.cgd.2c00901

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: 6,780 
• Modeled Residue Count: 775 
• Deposited Residue Count: 792 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
chitosanase	A, B	396	Bacillus sp. K17-2	Mutation(s): 0  EC: 3.2.1.132

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free:  0.210 (Depositor), 0.210 (DCC) 
• R-Value Work:  0.182 (Depositor), 0.180 (DCC) 
• R-Value Observed: 0.183 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.422	α = 90
b = 92.11	β = 90
c = 175.169	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: 2022-04-20 
Deposition Author(s): Guo, Y., Hoshino, T.

---

Funding Organization	Location	Grant Number
Japan Society for the Promotion of Science (JSPS)	Japan	21K07050

Revision History  

• Version 1.0: 2022-04-20
  Type: Initial release
  
• Version 1.1: 2022-11-02
  Changes: Database references
• Version 1.2: 2023-11-29
  Changes: Data collection, Refinement description