1ZS2

Amylosucrase Mutant E328Q in a ternary complex with sucrose and maltoheptaose

• PDB DOI: https://doi.org/10.2210/pdb1ZS2/pdb

• Classification: TRANSFERASE
• Organism(s): Neisseria polysaccharea
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2005-05-23 Released: 2006-05-02 
• Deposition Author(s): Skov, L.K., Mirza, O., Sprogoe, D., van der Veen, B.A., Remaud-Simeon, M., Albenne, C., Monsan, P., Gajhede, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.16 Å
• R-Value Free: 0.221 
• R-Value Work: 0.178 
• R-Value Observed: 0.178 

Starting Model: experimental

Literature

Crystal structure of the Glu328Gln mutant of Neisseria polysaccharea amylosucrase in complex with sucrose and maltoheptaose

Skov, L.K., Mirza, O., Sprogoe, D., van der Veen, B.A., Remaud-Simeon, M., Albenne, C., Monsan, P., Gajhede, M.

(2006) Biocatal Biotransformation 24: 99-105

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 73.04 kDa 
• Atom Count: 5,848 
• Modelled Residue Count: 628 
• Deposited Residue Count: 628 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
amylosucrase	A	628	Neisseria polysaccharea	Mutation(s): 1  EC: 2.4.1.4
UniProt
Find proteins for Q9ZEU2 (Neisseria polysaccharea) Explore Q9ZEU2  Go to UniProtKB:  Q9ZEU2

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	B	4		N/A
Glycosylation Resources
GlyTouCan:  G87171PZ GlyCosmos:  G87171PZ GlyGen:  G87171PZ

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	C	3		N/A
Glycosylation Resources
GlyTouCan:  G96370VA GlyCosmos:  G96370VA GlyGen:  G96370VA

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose	D	2		N/A
Glycosylation Resources
GlyTouCan:  G05551OP GlyCosmos:  G05551OP

Biologically Interesting Molecules (External Reference) 3 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900010	B	alpha-maltotetraose	Oligosaccharide / Substrate analog

Entity ID: 3
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900009	C	alpha-maltotriose	Oligosaccharide / Nutrient

Entity ID: 4
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900003	D	sucrose	Oligosaccharide / Nutrient

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.16 Å
• R-Value Free: 0.221 
• R-Value Work: 0.178 
• R-Value Observed: 0.178 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 95.741	α = 90
b = 116.358	β = 90
c = 61.051	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-05-02 
Deposition Author(s): Skov, L.K., Mirza, O., Sprogoe, D., van der Veen, B.A., Remaud-Simeon, M., Albenne, C., Monsan, P., Gajhede, M.

Revision History  

• Version 1.0: 2006-05-02
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-01-31
  Changes: Data collection, Database references
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary
• Version 2.1: 2021-10-20
  Changes: Database references, Structure summary
• Version 2.2: 2023-08-23
  Changes: Data collection, Refinement description