1AC0

GLUCOAMYLASE, GRANULAR STARCH-BINDING DOMAIN COMPLEX WITH CYCLODEXTRIN, NMR, MINIMIZED AVERAGE STRUCTURE

• PDB DOI: https://doi.org/10.2210/pdb1AC0/pdb

• Classification: HYDROLASE
• Organism(s): Aspergillus niger
• Expression System: Aspergillus niger
• Mutation(s): No 


• Deposited: 1997-02-10 Released: 1997-07-07 
• Deposition Author(s): Sorimachi, K., Le Gal-Coeffet, M.-F., Williamson, G., Archer, D.B., Williamson, M.P.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 1 
• Selection Criteria: RANDOM FROM 81 GOOD STRUCTURES 

Literature

Solution structure of the granular starch binding domain of Aspergillus niger glucoamylase bound to beta-cyclodextrin.

Sorimachi, K., Le Gal-Coeffet, M.F., Williamson, G., Archer, D.B., Williamson, M.P.

(1997) Structure 5: 647-661

• PubMed: 9195884 
• DOI: https://doi.org/10.1016/s0969-2126(97)00220-7
• Primary Citation of Related Structures:  
  1AC0, 1ACZ


• PubMed Abstract: 
  

  Carbohydrate-binding domains are usually small and physically separate from the catalytic domains of hydrolytic enzymes. Glucoamylase 1 (G1) from Aspergillus niger, an enzyme used widely in the food and brewing industries, contains a granular starch binding domain (SBD) which is separated from the catalytic domain by a semi-rigid linker. The aim of this study was to determine how the SBD binds to starch, and thereby more generally to throw light on the role of carbohydrate-binding domains in the hydrolysis of insoluble polysaccharides.

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Organizational Affiliation: 

Krebs Institute for Biomolecular Research Department of Molecular Biology and Biotechnology University of Sheffield Firth Court, Western Bank, Sheffield, S10 2TN, UK.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 14.19 kDa 
• Atom Count: 992 
• Modelled Residue Count: 108 
• Deposited Residue Count: 108 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
GLUCOAMYLASE	A	108	Aspergillus niger	Mutation(s): 0  EC: 3.2.1.3
UniProt
Find proteins for P69328 (Aspergillus niger) Explore P69328  Go to UniProtKB:  P69328

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
Cycloheptakis-(1-4)-(alpha-D-glucopyranose)	B, C	7		N/A
Glycosylation Resources
GlyTouCan:  G01435GL GlyCosmos:  G01435GL

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900012	B, C	beta-cyclodextrin	Oligosaccharide / Drug delivery

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 1 
• Selection Criteria: RANDOM FROM 81 GOOD STRUCTURES 

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-07-07 
Deposition Author(s): Sorimachi, K., Le Gal-Coeffet, M.-F., Williamson, G., Archer, D.B., Williamson, M.P.

Revision History  

• Version 1.0: 1997-07-07
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Non-polymer description, Other, Refinement description, Structure summary