2J73

alpha-glucan rcognition by a family 41 carbohydrate-binding module from Thermotoga maritima pullulanase PulA

• PDB DOI: https://doi.org/10.2210/pdb2J73/pdb

• Classification: HYDROLASE
• Organism(s): Thermotoga maritima
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2006-10-05 Released: 2006-10-17 
• Deposition Author(s): Lammerts van Bueren, A., Boraston, A.B.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free: 0.207 
• R-Value Work: 0.149 
• R-Value Observed: 0.152 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 25.33 kDa 
• Atom Count: 2,144 
• Modelled Residue Count: 205 
• Deposited Residue Count: 206 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PULLULANASE	A, B	103	Thermotoga maritima	Mutation(s): 0  EC: 3.2.1.41
UniProt
Find proteins for O33840 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore O33840  Go to UniProtKB:  O33840

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-glucopyranose-(1-6)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	C	4		N/A
Glycosylation Resources
GlyTouCan:  G36781FI GlyCosmos:  G36781FI GlyGen:  G36781FI

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

Biologically Interesting Molecules (External Reference) 1 Unique

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free: 0.207 
• R-Value Work: 0.149 
• R-Value Observed: 0.152 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 106.528	α = 90
b = 37.037	β = 112.01
c = 54.91	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-10-17 
Deposition Author(s): Lammerts van Bueren, A., Boraston, A.B.

Revision History  

• Version 1.0: 2006-10-17
  Type: Initial release
  
• Version 1.1: 2011-05-08
  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: Atomic model, Data collection, Derived calculations, Other, Structure summary
• Version 2.1: 2023-12-13
  Changes: Data collection, Database references, Refinement description, Structure summary