1CQ1

Soluble Quinoprotein Glucose Dehydrogenase from Acinetobacter Calcoaceticus in Complex with PQQH2 and Glucose

• PDB DOI: https://doi.org/10.2210/pdb1CQ1/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Acinetobacter calcoaceticus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1999-08-04 Released: 2000-02-04 
• Deposition Author(s): Oubrie, A., Rozeboom, H.J., Dijkstra, B.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.226 
• R-Value Work: 0.190 
• R-Value Observed: 0.190 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 101.85 kDa 
• Atom Count: 7,629 
• Modelled Residue Count: 890 
• Deposited Residue Count: 908 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
SOLUBLE QUINOPROTEIN GLUCOSE DEHYDROGENASE	A, B	454	Acinetobacter calcoaceticus	Mutation(s): 0
UniProt
Find proteins for P13650 (Acinetobacter calcoaceticus) Explore P13650  Go to UniProtKB:  P13650

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PQQ	G [auth A], L [auth B]	PYRROLOQUINOLINE QUINONE C14 H6 N2 O8 MMXZSJMASHPLLR-UHFFFAOYSA-N
BGC	C [auth A], H [auth B]	beta-D-glucopyranose C6 H12 O6 WQZGKKKJIJFFOK-VFUOTHLCSA-N
CA	D [auth A], E [auth A], F [auth A], I [auth B], J [auth B], K [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.226 
• R-Value Work: 0.190 
• R-Value Observed: 0.190 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 60.899	α = 90
b = 91.972	β = 104.62
c = 85.747	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	refinement
SCALEPACK	data scaling
REFMAC	refinement
X-PLOR	model building
DENZO	data reduction
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-02-04 
Deposition Author(s): Oubrie, A., Rozeboom, H.J., Dijkstra, B.W.

Revision History  

• Version 1.0: 2000-02-04
  Type: Initial release
  
• Version 1.1: 2007-10-21
  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: 2019-07-24
  Changes: Data collection, Refinement description
• Version 1.5: 2019-08-14
  Changes: Data collection
• Version 1.6: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Structure summary