1CQY | pdb_00001cqy

STARCH BINDING DOMAIN OF BACILLUS CEREUS BETA-AMYLASE

• PDB DOI: https://doi.org/10.2210/pdb1CQY/pdb

• Classification: HYDROLASE
• Organism(s): Bacillus cereus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1999-08-12 Released: 1999-08-20 
• Deposition Author(s): Yoon, H.J., Hirata, A., Adachi, M., Sekine, A., Utsumi, S., Mikami, B.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 
  0.225 (Depositor) 
• R-Value Work: 
  0.181 (Depositor) 
• R-Value Observed: 
  0.181 (Depositor) 

Literature

Structure of Separated Starch-Binding Domain of Bacillus cereus B-amylase

Yoon, H.J., Hirata, A., Adachi, M., Sekine, A., Utsumi, S., Mikami, B.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 11.31 kDa 
• Atom Count: 907 
• Modelled Residue Count: 99 
• Deposited Residue Count: 99 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BETA-AMYLASE	A	99	Bacillus cereus	Mutation(s): 0  EC: 3.2.1.2
UniProt
Find proteins for Q9Z4N9 (Bacillus cereus) Explore Q9Z4N9  Go to UniProtKB:  Q9Z4N9

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free:  0.225 (Depositor) 
• R-Value Work:  0.181 (Depositor) 
• R-Value Observed: 0.181 (Depositor) 

Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 60.195	α = 90
b = 60.195	β = 90
c = 64.922	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
FRAMBO	data collection
SADIE	data scaling
SAINT	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-08-20 
Deposition Author(s): Yoon, H.J., Hirata, A., Adachi, M., Sekine, A., Utsumi, S., Mikami, B.

Revision History  

• Version 1.0: 1999-08-20
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-04
  Changes: Refinement description
• Version 1.4: 2018-01-31
  Changes: Experimental preparation
• Version 1.5: 2024-02-07
  Changes: Data collection, Database references