1VB9

Crystal structure of Thermoactinomyces vulgaris R-47 alpha-amylase II (TVA II) complexed with transglycosylated product

• PDB DOI: https://doi.org/10.2210/pdb1VB9/pdb

• Classification: HYDROLASE
• Organism(s): Thermoactinomyces vulgaris
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2004-02-25 Released: 2005-03-08 
• Deposition Author(s): Mizuno, M., Tonozuka, T., Uechi, A., Ohtaki, A., Ichikawa, K., Kamitori, S., Nishikawa, A., Sakano, Y.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.233 
• R-Value Work: 0.194 
• R-Value Observed: 0.194 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 137.17 kDa 
• Atom Count: 10,196 
• Modelled Residue Count: 1,170 
• Deposited Residue Count: 1,170 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
alpha-amylase II	A, B	585	Thermoactinomyces vulgaris	Mutation(s): 1  EC: 3.2.1.1
UniProt
Find proteins for Q08751 (Thermoactinomyces vulgaris) Explore Q08751  Go to UniProtKB:  Q08751

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-(1-6)]alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	C, D	6		N/A
Glycosylation Resources
GlyTouCan:  G33695HX GlyCosmos:  G33695HX GlyGen:  G33695HX

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	E [auth A], F [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.233 
• R-Value Work: 0.194 
• R-Value Observed: 0.194 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 113.049	α = 90
b = 118.274	β = 90
c = 112.107	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
MOSFLM	data reduction
CCP4	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-03-08 
Deposition Author(s): Mizuno, M., Tonozuka, T., Uechi, A., Ohtaki, A., Ichikawa, K., Kamitori, S., Nishikawa, A., Sakano, Y.

Revision History  

• Version 1.0: 2005-03-08
  Type: Initial release
  
• Version 1.1: 2008-04-27
  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, Structure summary
• Version 2.1: 2021-11-10
  Changes: Database references, Structure summary
• Version 2.2: 2023-10-25
  Changes: Data collection, Refinement description