1A47

CGTASE FROM THERMOANAEROBACTERIUM THERMOSULFURIGENES EM1 IN COMPLEX WITH A MALTOHEXAOSE INHIBITOR

• PDB DOI: https://doi.org/10.2210/pdb1A47/pdb

• Classification: GLYCOSIDASE
• Organism(s): Thermoanaerobacterium thermosulfurigenes
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1998-02-11 Released: 1998-06-17 
• Deposition Author(s): Uitdehaag, J.C.M., Kalk, K.H., Rozeboom, H.J., Dijkstra, B.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.56 Å
• R-Value Free: 0.250 
• R-Value Work: 0.186 
• R-Value Observed: 0.191 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 77.07 kDa 
• Atom Count: 5,620 
• Modelled Residue Count: 683 
• Deposited Residue Count: 683 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CYCLODEXTRIN GLYCOSYLTRANSFERASE	A	683	Thermoanaerobacterium thermosulfurigenes	Mutation(s): 0  Gene Names: AMYA EC: 2.4.1.19
UniProt
Find proteins for P26827 (Thermoanaerobacterium thermosulfurigenes) Explore P26827  Go to UniProtKB:  P26827

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	B	3		N/A
Glycosylation Resources
GlyTouCan:  G96370VA GlyCosmos:  G96370VA GlyGen:  G96370VA

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-quinovopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	C	3		N/A
Glycosylation Resources
GlyTouCan:  G31885RT GlyCosmos:  G31885RT

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	D	2		N/A
Glycosylation Resources
GlyTouCan:  G07411ON GlyCosmos:  G07411ON

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ADH	E [auth A]	1-AMINO-2,3-DIHYDROXY-5-HYDROXYMETHYL CYCLOHEX-5-ENE C7 H13 N O3 BMZJPVSGERKRHP-ACZMJKKPSA-N
CA	F [auth A], G [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Biologically Interesting Molecules (External Reference) 2 Unique

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

Entity ID: 4
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900001	D	alpha-maltose	Oligosaccharide / Nutrient

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.56 Å
• R-Value Free: 0.250 
• R-Value Work: 0.186 
• R-Value Observed: 0.191 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 73.996	α = 90
b = 97.789	β = 90
c = 116.263	γ = 90

Software Package:

Software Name	Purpose
BIOMOL	model building
TNT	refinement
XDS	data reduction
BIOMOL	data scaling
BIOMOL	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-06-17 
Deposition Author(s): Uitdehaag, J.C.M., Kalk, K.H., Rozeboom, H.J., Dijkstra, B.W.

Revision History  

• Version 1.0: 1998-06-17
  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: 2017-10-25
  Changes: Atomic model, Derived calculations, Non-polymer description, Other, Structure summary
• Version 2.1: 2019-11-20
  Changes: Data collection, Derived calculations
• Version 3.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 3.1: 2023-08-02
  Changes: Database references, Derived calculations, Refinement description, Structure summary