2PWE

Crystal structure of the MutB E254Q mutant in complex with the substrate sucrose

• PDB DOI: https://doi.org/10.2210/pdb2PWE/pdb

• Classification: ISOMERASE
• Organism(s): Burkholderia ubonensis subsp. mesacidophila
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2007-05-11 Released: 2007-06-26 
• Deposition Author(s): Ravaud, S., Robert, X., Haser, R., Aghajari, N.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.235 
• R-Value Work: 0.190 

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: 128.38 kDa 
• Atom Count: 10,566 
• Modelled Residue Count: 1,112 
• Deposited Residue Count: 1,112 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sucrose isomerase	A, B	556	Burkholderia ubonensis subsp. mesacidophila	Mutation(s): 1  Gene Names: mutB EC: 5.4.99.11
UniProt
Find proteins for Q2PS28 (Burkholderia ubonensis subsp. mesacidophila) Explore Q2PS28  Go to UniProtKB:  Q2PS28

Oligosaccharides

Help

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

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

Biologically Interesting Molecules (External Reference) 1 Unique

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.235 
• R-Value Work: 0.190 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.31	α = 66.18
b = 73.73	β = 74.51
c = 82.75	γ = 72.55

Software Package:

Software Name	Purpose
MAR345	data collection
CNS	refinement
XDS	data reduction
XSCALE	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-06-26 
Deposition Author(s): Ravaud, S., Robert, X., Haser, R., Aghajari, N.

Revision History  

• Version 1.0: 2007-06-26
  Type: Initial release
  
• Version 1.1: 2007-10-16
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-18
  Changes: Refinement description
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary
• Version 2.1: 2021-10-20
  Changes: Database references, Structure summary
• Version 2.2: 2024-02-21
  Changes: Data collection